SPC Oct 21, 2024 0730 UTC Day 3 Severe Thunderstorm Outlook

1 month ago
SPC 0730Z Day 3 Outlook
Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0227 AM CDT Mon Oct 21 2024 Valid 231200Z - 241200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... No severe thunderstorms are expected on Wednesday. ...Synopsis... A mid-level trough and surface cold front will move from the Great Lakes to the Northeast on Wednesday. Weak instability is forecast to develop across western New York and vicinity during the afternoon. Shallow convection and a few lightning flashes will be possible along this cold front as it moves quickly across portions of the northeast Wednesday afternoon. A strong, mostly unidirectional wind profile will be present which could cause some gusty winds with these showers and thunderstorms. If greater instability and more robust convection can develop, some damaging wind gusts could be possible with this strongly forced convection. However, at this time, forecast instability is very weak and thus, no severe weather probabilities are justified. ..Bentley.. 10/21/2024 Read more

SPC Oct 21, 2024 0600 UTC Day 2 Convective Outlook

1 month ago
SPC 0600Z Day 2 Outlook
Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1244 AM CDT Mon Oct 21 2024 Valid 221200Z - 231200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... No severe thunderstorms are forecast on Tuesday. ...Synopsis... A mid-level trough will be absorbed into the broader westerlies on Tuesday as it traverses from the Midwest to the Upper Great Lakes. Some remnant convection is expected to be ongoing Tuesday morning in the vicinity of this trough across Missouri, but this convection should weaken by mid-day as it moves into drier air. Ridging will start to build in the western CONUS with an extended moderately strong jet-stream from the Oregon/California border to the Upper Midwest. At the surface, a strong cold front will traverse the northern Plains during the day. Some showers and thunderstorms are expected along this frontal boundary, as temperatures cool aloft and forcing increases ahead of an amplifying mid-level trough approaching the area from the southern Canadian Prairie Provinces. Instability will be limited, but may be sufficient for some lightning flashes. ..Bentley.. 10/21/2024 Read more

SPC Oct 21, 2024 0600 UTC Day 2 Convective Outlook

1 month ago
SPC 0600Z Day 2 Outlook
Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1244 AM CDT Mon Oct 21 2024 Valid 221200Z - 231200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... No severe thunderstorms are forecast on Tuesday. ...Synopsis... A mid-level trough will be absorbed into the broader westerlies on Tuesday as it traverses from the Midwest to the Upper Great Lakes. Some remnant convection is expected to be ongoing Tuesday morning in the vicinity of this trough across Missouri, but this convection should weaken by mid-day as it moves into drier air. Ridging will start to build in the western CONUS with an extended moderately strong jet-stream from the Oregon/California border to the Upper Midwest. At the surface, a strong cold front will traverse the northern Plains during the day. Some showers and thunderstorms are expected along this frontal boundary, as temperatures cool aloft and forcing increases ahead of an amplifying mid-level trough approaching the area from the southern Canadian Prairie Provinces. Instability will be limited, but may be sufficient for some lightning flashes. ..Bentley.. 10/21/2024 Read more

SPC Day 2 Fire Weather Outlook

1 month ago
SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 1240 AM CDT Mon Oct 21 2024 Valid 221200Z - 231200Z ...NO CRITICAL AREAS... ...Synopsis... A mid to upper-level shortwave trough is expected to traverse the Midwest throughout the day Tuesday. An associated cold front will accompany it, with breezy northwesterly surface winds moving down the northern and central Plains during the afternoon. A cooler post-frontal air mass will keep RH above critical thresholds for most locations. However, a narrow corridor of drier conditions/lower RH from northwestern NE into portions of SD may exist where rain did not fall from the previous day. Temporal confidence is not quite high enough to introduce a small Elevated area for this region, though subsequent forecasts may require it depending on the progression of the front and Monday's rainfall footprint. Overall, the fire weather threat should remain relatively low Tuesday. ..Barnes.. 10/21/2024 ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 2 Fire Weather Outlook

1 month ago
SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 1240 AM CDT Mon Oct 21 2024 Valid 221200Z - 231200Z ...NO CRITICAL AREAS... ...Synopsis... A mid to upper-level shortwave trough is expected to traverse the Midwest throughout the day Tuesday. An associated cold front will accompany it, with breezy northwesterly surface winds moving down the northern and central Plains during the afternoon. A cooler post-frontal air mass will keep RH above critical thresholds for most locations. However, a narrow corridor of drier conditions/lower RH from northwestern NE into portions of SD may exist where rain did not fall from the previous day. Temporal confidence is not quite high enough to introduce a small Elevated area for this region, though subsequent forecasts may require it depending on the progression of the front and Monday's rainfall footprint. Overall, the fire weather threat should remain relatively low Tuesday. ..Barnes.. 10/21/2024 ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Oct 21, 2024 0600 UTC Day 1 Convective Outlook

1 month ago
SPC 1200Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1224 AM CDT Mon Oct 21 2024 Valid 211200Z - 221200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS THE CENTRAL PLAINS... ...SUMMARY... Isolated severe thunderstorms are possible across the central Plains, mainly during the afternoon to early evening. ...Central Plains... Four Corners upper low is finally ejecting northeast and should advance into the central High Plains by 18z before moving into the middle MS Valley by the end of the period. In response to this feature, notable LLJ will shift from the High Plains at sunrise into central KS/eastern NE by late afternoon. At the surface, a sharp lee trough will be dislodged early, and a weak wave is expected to develop along the KS/NE border. This will ensure southeasterly low-level flow across northern KS into central NE through peak heating. Large-scale pattern favors focused low-level convergence over southern NE/northern KS but the magnitude of instability is not expected to be that strong, with perhaps MLCAPE exceeding 1000 J/kg across the MRGL risk where surface dew points are able to rise into the mid 50s. While buoyancy is not forecast to be that significant, modestly steep lapse rates and 90m 12hr height falls do warrant attention, as high-level diffluent flow will prove favorable for robust updrafts. Scattered convection will likely be ongoing at the beginning of the period, along the leading edge of stronger forcing, within the low-level warm advection corridor. This activity should propagate east during the day with the potential for strong/severe storms developing in its wake where boundary layer warms. Current thinking is isolated severe storms, including supercells, will evolve by mid afternoon within the left exit region of the mid-level jet. At this time will maintain MRGL risk, but there was some consideration for introducing a SLGT, and this may be need in later outlooks. ..Darrow.. 10/21/2024 Read more

SPC Oct 21, 2024 0600 UTC Day 1 Convective Outlook

1 month ago
SPC 1200Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1224 AM CDT Mon Oct 21 2024 Valid 211200Z - 221200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS THE CENTRAL PLAINS... ...SUMMARY... Isolated severe thunderstorms are possible across the central Plains, mainly during the afternoon to early evening. ...Central Plains... Four Corners upper low is finally ejecting northeast and should advance into the central High Plains by 18z before moving into the middle MS Valley by the end of the period. In response to this feature, notable LLJ will shift from the High Plains at sunrise into central KS/eastern NE by late afternoon. At the surface, a sharp lee trough will be dislodged early, and a weak wave is expected to develop along the KS/NE border. This will ensure southeasterly low-level flow across northern KS into central NE through peak heating. Large-scale pattern favors focused low-level convergence over southern NE/northern KS but the magnitude of instability is not expected to be that strong, with perhaps MLCAPE exceeding 1000 J/kg across the MRGL risk where surface dew points are able to rise into the mid 50s. While buoyancy is not forecast to be that significant, modestly steep lapse rates and 90m 12hr height falls do warrant attention, as high-level diffluent flow will prove favorable for robust updrafts. Scattered convection will likely be ongoing at the beginning of the period, along the leading edge of stronger forcing, within the low-level warm advection corridor. This activity should propagate east during the day with the potential for strong/severe storms developing in its wake where boundary layer warms. Current thinking is isolated severe storms, including supercells, will evolve by mid afternoon within the left exit region of the mid-level jet. At this time will maintain MRGL risk, but there was some consideration for introducing a SLGT, and this may be need in later outlooks. ..Darrow.. 10/21/2024 Read more

SPC Day 1 Fire Weather Outlook

1 month ago
SPC Day 1 Fire Weather Outlook
Day 1 Fire Weather Outlook CORR 1 NWS Storm Prediction Center Norman OK 1159 PM CDT Sun Oct 20 2024 Valid 211200Z - 221200Z CORRECTED FOR GEOGRAPHIC REGION IN TEXT ...NO CRITICAL AREAS... ...Synopsis... The overall fire weather threat will remain low Monday. A mid to upper-level low will traverse the central Plains during the day, with southerly surface winds increasing from West TX northward into the Upper Midwest. Precipitation chances, cloud cover, and a narrow corridor of increasing low-level moisture, however, will accompany this aforementioned low keeping RH well above critical thresholds. Some areas of minor concern may be from far southeastern KS and southwestern MO, northward into IA where slightly lower RH will coincide with sustained winds near 15 mph and highly receptive fuels. In addition, persistent dry conditions will continue across the West where localized elevated conditions appear possible within the Snake River Plain. Westerly winds may approach 15-20 mph here. These conditions may also extend southward into the northern Great Basin, but should remain too localized to warrant any Elevated areas at this time. ..Barnes.. 10/21/2024 ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC MD 2153

1 month ago
MD 2153 CONCERNING SEVERE THUNDERSTORM WATCH 691... FOR EASTERN NM
Mesoscale Discussion 2153 NWS Storm Prediction Center Norman OK 0823 PM CDT Sun Oct 20 2024 Areas affected...Eastern NM Concerning...Severe Thunderstorm Watch 691... Valid 210123Z - 210330Z The severe weather threat for Severe Thunderstorm Watch 691 continues. SUMMARY...An isolated large hail should persist for the next few hours across east-central to northeast New Mexico, with a brief tornado also possible in east-central New Mexico. DISCUSSION...Two primary corridors of thunderstorms are ongoing; one east of the Sangre de Cristo Mountains near the Raton Mesa, and the other south of the I-40 corridor in east-central NM. The northern storms should pose a continued threat of small to marginally severe hail of 0.75 to 1.25 inches, based on prior MRMS MESH signatures and presence of weak surface-based buoyancy plume. The discrete cells farther south have recently consolidated to two storms and these may gradually intensify over the next hour or so within a favorable supercell wind profile. FDX VWP data confirms an enlarged 0-1 km hodograph, beneath by strong southwesterly speed shear above 3 km. This could result in a sustained supercell being capable of a brief tornado, along with large hail from quarter to golf ball size through about 03-04Z. Thereafter, additional storms will probably increase in between the two separate regimes as low-level warm theta-e advection becomes maximized and a cluster mode dominates, while the boundary layer further cools. ..Grams.. 10/21/2024 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...LUB...AMA...PUB...ABQ... LAT...LON 37450359 37370295 34890284 34230293 33880371 33830426 33870470 34250495 35620520 36260486 36990419 37450359 Read more

SPC Severe Thunderstorm Watch 691 Status Reports

1 month ago
WW 0691 Status Updates
STATUS REPORT ON WW 691 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 55 ENE ROW TO 35 N 4CR. FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 2153. ..GRAMS..10/21/24 ATTN...WFO...ABQ... STATUS REPORT FOR WS 691 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS NMC007-009-011-019-021-033-037-041-047-059-210340- NM . NEW MEXICO COUNTIES INCLUDED ARE COLFAX CURRY DE BACA GUADALUPE HARDING MORA QUAY ROOSEVELT SAN MIGUEL UNION THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES. Read more

SPC Severe Thunderstorm Watch 691

1 month ago
WW 691 SEVERE TSTM NM 202355Z - 210700Z
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 691 NWS Storm Prediction Center Norman OK 555 PM MDT Sun Oct 20 2024 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Eastern New Mexico * Effective this Sunday afternoon and Monday morning from 555 PM until 100 AM MDT. * Primary threats include... Scattered damaging wind gusts to 70 mph possible Scattered large hail events to 1.5 inches in diameter possible A tornado or two possible SUMMARY...Scattered strong to severe storms are expected to further develop through the early evening hours, mainly posing a large hail and severe wind gust risk through the evening. The severe thunderstorm watch area is approximately along and 60 statute miles east and west of a line from 25 miles northeast of Raton NM to 20 miles southwest of Roswell NM. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU1). PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A Severe Thunderstorm Watch means conditions are favorable for severe thunderstorms in and close to the watch area. Persons in these areas should be on the lookout for threatening weather conditions and listen for later statements and possible warnings. Severe thunderstorms can and occasionally do produce tornadoes. && AVIATION...A few severe thunderstorms with hail surface and aloft to 1.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 23025. ...Guyer Read more

SPC Oct 21, 2024 0100 UTC Day 1 Convective Outlook

1 month ago
SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0747 PM CDT Sun Oct 20 2024 Valid 210100Z - 211200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS EASTERN NEW MEXICO... ...SUMMARY... Thunderstorms remain capable of producing large hail and a couple of tornadoes across eastern New Mexico and extreme southeastern Colorado this evening. ...01z Update... Upper low is finally ejecting northeast as strongest 500mb flow is now translating across northern NM. Weakening trough will advance into eastern CO/NM by 21/12z and this should maintain LLJ across the TX South Plains into western KS. While large-scale forcing will overspread much of the High Plains later tonight, robust updrafts should remain focused along an axis from near Roswell NM to southeast of Trinidad CO for the next several hours. This is due to the primary corridor of modest instability extending across eastern NM. While low-level moist/upslope flow continues across the southern High Plains, 00z soundings just downstream at MAF and AMA exhibit strong capping between 750-700mb. Current thinking is scattered strong/severe thunderstorms, a few supercellular in nature, will persist across eastern NM this evening, then buoyancy will gradually wane and updrafts should slowly weaken. This activity will likely struggle to maintain significant intensity as it spreads toward the TX/OK Panhandle and southwest KS, per 00z soundings. ..Darrow.. 10/21/2024 Read more

SPC MD 2152

1 month ago
MD 2152 CONCERNING SEVERE POTENTIAL...WATCH POSSIBLE FOR EASTERN TO NORTH-CENTRAL NM
Mesoscale Discussion 2152 NWS Storm Prediction Center Norman OK 0458 PM CDT Sun Oct 20 2024 Areas affected...Eastern to north-central NM Concerning...Severe potential...Watch possible Valid 202158Z - 210000Z Probability of Watch Issuance...60 percent SUMMARY...The severe threat should increase into the early evening across parts of northern to eastern New Mexico. Large hail should be the main threat, but a tornado or two along with a localized severe gust is also possible. Uncertainty exists with the timing of greater than very isolated coverage, which impacts the expected peak intensity. DISCUSSION...Convection has gradually increased across mainly the north-central to northeast portion of NM, with a more recent increase over the past 30 min just east of the Sangre de Cristo Mountains. Other CU/small CB towers are widely spaced south into southeast NM as well. The environment, especially with southern extent where boundary-layer heating has been more pronounced, is conditionally favorable for supercells with strong effective bulk shear and mid/upper-level hodograph elongation. Recent HRRR guidance suggests initial activity should mainly pose a rather isolated large hail threat, with magnitude of 1-1.5 inch along the northern periphery of weak surface-based buoyancy. A more robust severe threat could develop towards 00-02Z if discrete supercells can become sustained farther south as a low-level jet intensifies from the Permian Basin northward. This could support a greater large hail and tornado threat during the early to mid-evening. But this potential increase may be short-lived, given onset of nocturnal cooling amid limited spatial extent of stronger heating west of the persistent stratocu deck still present over far east-central to northeast NM. ..Grams/Hart.. 10/20/2024 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...ABQ... LAT...LON 36050643 36350448 36610385 36770365 36780306 36150324 35590349 34270375 33920381 33560418 33440462 33490494 34040518 34730551 34950583 35400636 35780670 36050643 Read more

SPC Day 3-8 Fire Weather Outlook

1 month ago
SPC Day 3-8 Fire Weather Outlook
Day 3-8 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0443 PM CDT Sun Oct 20 2024 Valid 221200Z - 281200Z Fire weather concerns will remain low in the extended. A closed mid-level low will continue east-northeastward across the central Rockies into early next week, with breezy winds expected across the Plains. Behind this system, post-frontal northwesterly breezes will be possible across the Central/High plains on D3-Tuesday. However, low-level moisture return and eventual precipitation will limit RH reductions and the overall fire-weather risk. High pressure will build in across the CONUS through the end of the week before shortwave progression across the northern periphery brings a more zonal westerly flow pattern across the Rockies. This may bring potential for breezy conditions across portions of the northern Plains, primarily on D6 - Friday. Confidence in widespread relative humidity reductions remains limited at this time and no areas have been included. ..Thornton.. 10/20/2024 ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Oct 20, 2024 2000 UTC Day 1 Convective Outlook

1 month ago
SPC 2000Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0256 PM CDT Sun Oct 20 2024 Valid 202000Z - 211200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS PORTIONS OF EASTERN NM AND SOUTHEASTERN CO.... ...SUMMARY... Severe thunderstorms capable of large hail and a couple of tornadoes will be possible across eastern New Mexico and extreme southeastern Colorado this afternoon/evening. ...20z... The previous outlook remains on track with minor adjustments based on the latest guidance/observations. Severe probabilities have been expanded slightly north and eastward into parts of southeastern CO ahead of strong to potentially severe storms developing over northeastern NM. Some clearing within weak upslope flow across southeast CO will support slightly greater buoyancy (~1000 J/kg of MUCAPE) with modestly favorable deep-layer shear for supercell or organized multicells. The cool temperatures aloft and a favorable storm mode could support a risk for severe hail with the strongest storms through the remainder of this afternoon into this evening. See forthcoming MCD #2151 for additional info. Farther south across parts of east-central and southeastern NM, additional supercells appear likely late this afternoon into this evening ahead of a weak lee trough and the upper cyclone. More persistent upslope and clearing should support around 1000 J/kg of MLCAPE with veering wind profiles. Supercells capable of hail and perhaps a tornado or two are possible. See the prior outlook for more info. ..Lyons.. 10/20/2024 .PREV DISCUSSION... /ISSUED 1120 AM CDT Sun Oct 20 2024/ ...Eastern NM... Satellite imagery shows a deep and cold upper low over the Four-Corners region today, with a band of moderately strong mid-level winds rotating around the low across NM. Scattered showers and thunderstorms have been occurring across the mountains and adjacent plains of NM this morning, with relatively widespread clouds and limited opportunity for daytime heating. It appears this trend will continue through the afternoon across northeast NM, but eroding low-cloud cover should result in a region of greater surface-based instability over east-central and southeast NM. Morning CAM solutions agree on the development of a few discrete/supercell storms in this area by late afternoon. Forecast soundings show steep mid-level lapse rates and strong deep-layer shear, favorable for large hail in the more robust updrafts. Low-level winds are backed but not particularly strong, but strong winds above 2km result in sufficient hodograph curvature for some concern for a couple of tornadoes - especially in the 00-03z time period. Activity may approach the NM/TX border this evening before weakening. Read more

SPC Oct 20, 2024 2000 UTC Day 1 Convective Outlook

1 month ago
SPC 2000Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0256 PM CDT Sun Oct 20 2024 Valid 202000Z - 211200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS PORTIONS OF EASTERN NM AND SOUTHEASTERN CO.... ...SUMMARY... Severe thunderstorms capable of large hail and a couple of tornadoes will be possible across eastern New Mexico and extreme southeastern Colorado this afternoon/evening. ...20z... The previous outlook remains on track with minor adjustments based on the latest guidance/observations. Severe probabilities have been expanded slightly north and eastward into parts of southeastern CO ahead of strong to potentially severe storms developing over northeastern NM. Some clearing within weak upslope flow across southeast CO will support slightly greater buoyancy (~1000 J/kg of MUCAPE) with modestly favorable deep-layer shear for supercell or organized multicells. The cool temperatures aloft and a favorable storm mode could support a risk for severe hail with the strongest storms through the remainder of this afternoon into this evening. See forthcoming MCD #2151 for additional info. Farther south across parts of east-central and southeastern NM, additional supercells appear likely late this afternoon into this evening ahead of a weak lee trough and the upper cyclone. More persistent upslope and clearing should support around 1000 J/kg of MLCAPE with veering wind profiles. Supercells capable of hail and perhaps a tornado or two are possible. See the prior outlook for more info. ..Lyons.. 10/20/2024 .PREV DISCUSSION... /ISSUED 1120 AM CDT Sun Oct 20 2024/ ...Eastern NM... Satellite imagery shows a deep and cold upper low over the Four-Corners region today, with a band of moderately strong mid-level winds rotating around the low across NM. Scattered showers and thunderstorms have been occurring across the mountains and adjacent plains of NM this morning, with relatively widespread clouds and limited opportunity for daytime heating. It appears this trend will continue through the afternoon across northeast NM, but eroding low-cloud cover should result in a region of greater surface-based instability over east-central and southeast NM. Morning CAM solutions agree on the development of a few discrete/supercell storms in this area by late afternoon. Forecast soundings show steep mid-level lapse rates and strong deep-layer shear, favorable for large hail in the more robust updrafts. Low-level winds are backed but not particularly strong, but strong winds above 2km result in sufficient hodograph curvature for some concern for a couple of tornadoes - especially in the 00-03z time period. Activity may approach the NM/TX border this evening before weakening. Read more

SPC MD 2151

1 month ago
MD 2151 CONCERNING SEVERE POTENTIAL...WATCH UNLIKELY FOR NORTHERN NEW MEXICO/SOUTH-CENTRAL COLORADO
Mesoscale Discussion 2151 NWS Storm Prediction Center Norman OK 0258 PM CDT Sun Oct 20 2024 Areas affected...Northern New Mexico/south-central Colorado Concerning...Severe potential...Watch unlikely Valid 201958Z - 202230Z Probability of Watch Issuance...20 percent SUMMARY...An increase in thunderstorm coverage is expected through this afternoon and evening, with small to near-severe size hail as the primary hazard. A watch is not currently anticipated for these storms. DISCUSSION...Thunderstorms were increasing in coverage and intensity to the northeast of an upper low as of 1955z as ascent continues to overspread the discussion area. Generally weak buoyancy will limit the overall intensity of storms and severe risk as the upper low lifts northeast, however cool mid-level temperatures and supportive shear profiles will result in storms capable of producing copious amounts of small to possibly near-severe hail through early evening. A watch is not expected for storms in this area. Later this afternoon/evening, a more organized severe risk should develop over eastern NM in the vicinity of a diffuse surface trough and in an environment that will be supportive of supercells. Details regarding this severe threat will be addressed through subsequent mesoscale discussions. ..Bunting/Hart.. 10/20/2024 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...PUB...ABQ...GJT... LAT...LON 36110664 36390709 37010734 37570705 37720637 37650479 37370412 37140382 36880368 36590384 36440427 36280553 36110664 Read more

SPC Day 2 Fire Weather Outlook

1 month ago
SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0243 PM CDT Sun Oct 20 2024 Valid 211200Z - 221200Z ...NO CRITICAL AREAS... No changes are needed to the D2 Fire Weather Outlook. See previous discussion below. ..Thornton.. 10/20/2024 .PREV DISCUSSION... /ISSUED 1218 AM CDT Sun Oct 20 2024/ ...Synopsis... Fire weather concerns will remain limited for Monday across the country. The upper low currently over northern AZ is forecast to eject into the Plains through the day. While winds across the Plains will be breezy, scattered showers and thunderstorms will limit fire weather concerns. Dry conditions will persist across the West, and localized elevated conditions appear possible in the lee of the Cascades and through the Snake River Plains where terrain-driven winds may approach 15-20 mph. However, such conditions should remain too localized to warrant highlights. ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 2 Fire Weather Outlook

1 month ago
SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0243 PM CDT Sun Oct 20 2024 Valid 211200Z - 221200Z ...NO CRITICAL AREAS... No changes are needed to the D2 Fire Weather Outlook. See previous discussion below. ..Thornton.. 10/20/2024 .PREV DISCUSSION... /ISSUED 1218 AM CDT Sun Oct 20 2024/ ...Synopsis... Fire weather concerns will remain limited for Monday across the country. The upper low currently over northern AZ is forecast to eject into the Plains through the day. While winds across the Plains will be breezy, scattered showers and thunderstorms will limit fire weather concerns. Dry conditions will persist across the West, and localized elevated conditions appear possible in the lee of the Cascades and through the Snake River Plains where terrain-driven winds may approach 15-20 mph. However, such conditions should remain too localized to warrant highlights. ...Please see www.spc.noaa.gov/fire for graphic product... Read more
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