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Isolated strong to severe thunderstorms are possible today for parts of the central Gulf Coast/Southeast, far west Texas and southern New Mexico, central Plains into southwest Minnesota, the Minnesota Arrowhead, and northern Rockies.
← back to overviewSPC AC 251616
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1116 AM CDT Mon May 25 2026
Valid 251630Z - 261200Z
THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF THE CENTRAL GULF COAST/SOUTHEAST…FAR WEST TEXAS AND SOUTHERN NEW MEXICO…CENTRAL PLAINS INTO SOUTHWEST MINNESOTA…THE MINNESOTA ARROWHEAD…AND NORTHERN ROCKIES
### SUMMARY
Isolated strong to severe thunderstorms are possible today for parts of the central Gulf Coast/Southeast, far west Texas and southern New Mexico, central Plains into southwest Minnesota, the Minnesota Arrowhead, and northern Rockies.
Central Plains/Mid Missouri Valley
Isolated thunderstorms may develop late this afternoon from NE into southwest MN/northwest IA along a weak surface trough. Large-scale ascent will remain negligible due to the close proximity to a mid-level anticyclone situated over the lower MO Valley. However, ample instability and adequate deep-layer shear may still yield a localized risk for large hail/severe gusts with the stronger multicells, before this activity weakens by late evening.
Minnesota Arrowhead
The glancing influence of an upper trough moving from Manitoba into northern Ontario should encourage at least isolated thunderstorm development this afternoon across the MN Arrowhead vicinity. Steep mid-level lapse rates present on the 12Z INL observed sounding and daytime heating of a modestly moist low-level airmass will support moderate to locally strong instability. Sufficient deep-layer shear for updraft organization will foster an isolated risk for large hail and damaging winds with the stronger cores.
Central Gulf Coast/Southeast
A weak MCV and associated upper trough will move inland over the central Gulf Coast states today. Modest flow enhancement and minor low-level hodograph curvature may aid in occasional strong/gusty winds and perhaps a brief tornado with convection spreading northward this afternoon. But, poor lapse rates aloft noted on 12Z LIX/JAN/BMX/FFC observed soundings will likely temper the development of more robust instability, and should limit the overall severe risk.
Northern Rockies
An upper trough/low will overspread the Pacific Northwest and northern Rockies as it digs southeastward through tonight. While low-level moisture will remain limited, daytime heating will foster weak buoyancy and the development of high-based convection across the northern Rockies this afternoon. Steepened low/mid-level lapse rates may support occasionally strong to severe downdraft winds with this activity.
Southern New Mexico/Far West Texas
An upper trough over AZ late this morning will move slowly north-northeastward across the Southwest through the period. Thunderstorms that develop this afternoon across northern Mexico and southwest NM will encounter a gradually destabilizing airmass downstream into far west TX. Isolated strong to severe gusts may occur as low-level lapse rates become steepened.
Central Texas
A weak MCV noted in visible satellite imagery late this morning is slowly meandering across central TX. While additional convection with locally gusty winds may develop this afternoon in its proximity, weak shear should limit the threat for organized severe thunderstorms.
..Gleason/Lyons.. 05/25/2026
CLICK TO GET WUUS01 PTSDY1 PRODUCT
NOTE: THE NEXT DAY 1 OUTLOOK IS SCHEDULED BY 2000Z
Scattered severe storms will be possible across western Texas into southeastern New Mexico Tuesday afternoon and evening. Across this region, large hail, severe gusts, and perhaps a tornado will be possible.
← back to overviewSPC AC 250548
Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1248 AM CDT Mon May 25 2026
Valid 261200Z - 271200Z
THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF SOUTHWEST TEXAS
### SUMMARY
Scattered severe storms will be possible across western Texas into southeastern New Mexico Tuesday afternoon and evening. Across this region, large hail, severe gusts, and perhaps a tornado will be possible.
Synopsis
The pattern on D2/Tuesday will include a deepening mid-level low across the Pacific Northwest and height rises with a building high downstream across the central/northern US. A shortwave with multiple embedded vorticity maximas will move across Texas. This will be the focus of scattered severe thunderstorm development by the afternoon.
### Eastern New Mexico and Western Texas
As forcing for ascent increases across Texas Tuesday afternoon, widely scattered thunderstorm development is expected from the Davis Mountains to the Edwards Plateau and to the southern Permian Basin. Moderate instability and steep low to mid-level lapse rates are forecast across the region, with increasing deep layer shear to around 30-40 kts. Mode will likely include a few supercells and multi-cell clusters capable of large to very large hail and severe wind gusts. Forecast soundings indicate low-level SRH may increase through the late afternoon/evening, which could support some increase in tornado potential.
Through time, cells are progged to cluster and move downstream into portions of south Texas. Should cells be able to maintain cold pool organization, damaging wind potential may extend to the southern Texas coast. The Slight Risk remains unchanged but a minor eastward expansion was given to the Marginal Risk to account for this potential.
Montana
Scattered thunderstorm activity is expected with the upper trough across portions of southern Idaho into Montana. Modest instability and strengthening deep layer shear amid deeply mixed profiles may allow for a few stronger storms with potential for marginally severe hail and severe gusts.
..Thornton.. 05/25/2026
CLICK TO GET WUUS02 PTSDY2 PRODUCT
NOTE: THE NEXT DAY 2 OUTLOOK IS SCHEDULED BY 1730Z
Scattered thunderstorm activity will be possible from the Pacific Northwest to the Intermountain West and from the Plains to the Southeastern US on Wednesday. Organized severe potential is expected to remain low.
← back to overviewSPC AC 250719
Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0219 AM CDT Mon May 25 2026
Valid 271200Z - 281200Z
NO SEVERE THUNDERSTORM AREAS FORECAST
### SUMMARY
Scattered thunderstorm activity will be possible from the Pacific Northwest to the Intermountain West and from the Plains to the Southeastern US on Wednesday. Organized severe potential is expected to remain low.
Discussion
The western US trough will become cut off and shift southward into the Great Basin on Wednesday, with scattered thunderstorm activity continuing across portions of the Pacific Northwest into the Intermountain West. A few strong gusts will be possible with storms across northern Idaho into western Montana. Overall, deep layer shear will largely be west of the marginal instability across central/eastern Montana, which will likely keep organized severe potential low. Model guidance that typically exhibits a moist-bias does suggest that higher instability does nudge into northern Montana and northern Idaho. Should more model consensus in this scenario increase, low probabilities may need to be introduced in upcoming outlook updates.
Widely scattered thunderstorm activity will be possible across portions of the central/southern Plains into the southeast Wednesday afternoon. Overall, weak flow beneath the mid-level ridge will keep severe storm potential low.
A few stronger storms will be possible across the Mid Atlantic as enhanced westerly flow from a trough across the northeast overspreads the region. Though deep layer shear will be around 35-40 kts, forecast soundings depict cloudy conditions through the morning, with skinny and elongated CAPE profiles and only marginal instability. This will likely temper the severe potential, though a few strong gusts will remain possible.
..Thornton.. 05/25/2026
CLICK TO GET WUUS03 PTSDY3 PRODUCT
NOTE: THE NEXT DAY 3 OUTLOOK IS SCHEDULED BY 1930Z
You are looking at an outlook that is part of the medium range forecast (the outlook for days 4-8). The most important thing to note is that lack of a risk does not mean zero risk. Generally speaking, confidence has to be pretty high for the Storm Prediction Center to have an outlook area this far into the future.
When no specific risk areas are shown, you might see one of these phrases:
If you bookmark this page, it will continue to update with each new outlook that is issued.
| Day 4 | Thursday, May 28 | predictability too low |
| Day 5 | Friday, May 29 | predictability too low |
| Day 6 | Saturday, May 30 | predictability too low |
| Day 7 | Sunday, May 31 | predictability too low |
| Day 8 | Monday, June 1 | predictability too low |
← back to overviewZCZC SPCSWOD48 ALL ACUS48 KWNS 250843 SPC AC 250843
Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0343 AM CDT Mon May 25 2026
Valid 281200Z - 021200Z
DISCUSSION
D4/Thursday through D5/Friday
The western low is expected to shift northward again and phase with the northern jet stream D4/Thursday - D5/Friday. There is low confidence in chances for strong to severe storms, pending details on moisture, across the Intermountain West and northern Rockies.
Guidance suggests that as the western trough shifts northward and weak disturbances rotate across the Rockies, lee troughing across the Plains may strengthen D5/Friday, bringing a potential for low end severe risk into the central/northern High Plains. For now confidence in any corridors of organized severe risk remain too low.
A cold front will sag southward across the east coast D4/Thursday through D5/Friday as enhanced flow digs an upper level trough across Quebec southward into the eastern Great Lakes. Some low end severe potential may accompany this frontal passage each day, but uncertainty remains high in overlap of deep layer shear with better moisture/instability.
D6/Saturday through D8/Monday
Toward the end of next weekend D7/Sunday through D8/Monday, ensemble guidance is increasing in confidence for a large scale ridge to build in across the central/western US with rising heights and warming temperatures. Building surface high pressure across the Midwest/Great Lakes may shunt moisture southward to the Gulf states. Should this pattern continue to hold, severe potential will remain low through much of the CONUS.
..Thornton.. 05/25/2026
CLICK TO GET WUUS48 PTSD48 PRODUCT
You are looking at an outlook that is part of the medium range forecast (the outlook for days 4-8). The most important thing to note is that lack of a risk does not mean zero risk. Generally speaking, confidence has to be pretty high for the Storm Prediction Center to have an outlook area this far into the future.
When no specific risk areas are shown, you might see one of these phrases:
If you bookmark this page, it will continue to update with each new outlook that is issued.
| Day 4 | Thursday, May 28 | predictability too low |
| Day 5 | Friday, May 29 | predictability too low |
| Day 6 | Saturday, May 30 | predictability too low |
| Day 7 | Sunday, May 31 | predictability too low |
| Day 8 | Monday, June 1 | predictability too low |
← back to overviewZCZC SPCSWOD48 ALL ACUS48 KWNS 250843 SPC AC 250843
Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0343 AM CDT Mon May 25 2026
Valid 281200Z - 021200Z
DISCUSSION
D4/Thursday through D5/Friday
The western low is expected to shift northward again and phase with the northern jet stream D4/Thursday - D5/Friday. There is low confidence in chances for strong to severe storms, pending details on moisture, across the Intermountain West and northern Rockies.
Guidance suggests that as the western trough shifts northward and weak disturbances rotate across the Rockies, lee troughing across the Plains may strengthen D5/Friday, bringing a potential for low end severe risk into the central/northern High Plains. For now confidence in any corridors of organized severe risk remain too low.
A cold front will sag southward across the east coast D4/Thursday through D5/Friday as enhanced flow digs an upper level trough across Quebec southward into the eastern Great Lakes. Some low end severe potential may accompany this frontal passage each day, but uncertainty remains high in overlap of deep layer shear with better moisture/instability.
D6/Saturday through D8/Monday
Toward the end of next weekend D7/Sunday through D8/Monday, ensemble guidance is increasing in confidence for a large scale ridge to build in across the central/western US with rising heights and warming temperatures. Building surface high pressure across the Midwest/Great Lakes may shunt moisture southward to the Gulf states. Should this pattern continue to hold, severe potential will remain low through much of the CONUS.
..Thornton.. 05/25/2026
CLICK TO GET WUUS48 PTSD48 PRODUCT
You are looking at an outlook that is part of the medium range forecast (the outlook for days 4-8). The most important thing to note is that lack of a risk does not mean zero risk. Generally speaking, confidence has to be pretty high for the Storm Prediction Center to have an outlook area this far into the future.
When no specific risk areas are shown, you might see one of these phrases:
If you bookmark this page, it will continue to update with each new outlook that is issued.
| Day 4 | Thursday, May 28 | predictability too low |
| Day 5 | Friday, May 29 | predictability too low |
| Day 6 | Saturday, May 30 | predictability too low |
| Day 7 | Sunday, May 31 | predictability too low |
| Day 8 | Monday, June 1 | predictability too low |
← back to overviewZCZC SPCSWOD48 ALL ACUS48 KWNS 250843 SPC AC 250843
Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0343 AM CDT Mon May 25 2026
Valid 281200Z - 021200Z
DISCUSSION
D4/Thursday through D5/Friday
The western low is expected to shift northward again and phase with the northern jet stream D4/Thursday - D5/Friday. There is low confidence in chances for strong to severe storms, pending details on moisture, across the Intermountain West and northern Rockies.
Guidance suggests that as the western trough shifts northward and weak disturbances rotate across the Rockies, lee troughing across the Plains may strengthen D5/Friday, bringing a potential for low end severe risk into the central/northern High Plains. For now confidence in any corridors of organized severe risk remain too low.
A cold front will sag southward across the east coast D4/Thursday through D5/Friday as enhanced flow digs an upper level trough across Quebec southward into the eastern Great Lakes. Some low end severe potential may accompany this frontal passage each day, but uncertainty remains high in overlap of deep layer shear with better moisture/instability.
D6/Saturday through D8/Monday
Toward the end of next weekend D7/Sunday through D8/Monday, ensemble guidance is increasing in confidence for a large scale ridge to build in across the central/western US with rising heights and warming temperatures. Building surface high pressure across the Midwest/Great Lakes may shunt moisture southward to the Gulf states. Should this pattern continue to hold, severe potential will remain low through much of the CONUS.
..Thornton.. 05/25/2026
CLICK TO GET WUUS48 PTSD48 PRODUCT
You are looking at an outlook that is part of the medium range forecast (the outlook for days 4-8). The most important thing to note is that lack of a risk does not mean zero risk. Generally speaking, confidence has to be pretty high for the Storm Prediction Center to have an outlook area this far into the future.
When no specific risk areas are shown, you might see one of these phrases:
If you bookmark this page, it will continue to update with each new outlook that is issued.
| Day 4 | Thursday, May 28 | predictability too low |
| Day 5 | Friday, May 29 | predictability too low |
| Day 6 | Saturday, May 30 | predictability too low |
| Day 7 | Sunday, May 31 | predictability too low |
| Day 8 | Monday, June 1 | predictability too low |
← back to overviewZCZC SPCSWOD48 ALL ACUS48 KWNS 250843 SPC AC 250843
Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0343 AM CDT Mon May 25 2026
Valid 281200Z - 021200Z
DISCUSSION
D4/Thursday through D5/Friday
The western low is expected to shift northward again and phase with the northern jet stream D4/Thursday - D5/Friday. There is low confidence in chances for strong to severe storms, pending details on moisture, across the Intermountain West and northern Rockies.
Guidance suggests that as the western trough shifts northward and weak disturbances rotate across the Rockies, lee troughing across the Plains may strengthen D5/Friday, bringing a potential for low end severe risk into the central/northern High Plains. For now confidence in any corridors of organized severe risk remain too low.
A cold front will sag southward across the east coast D4/Thursday through D5/Friday as enhanced flow digs an upper level trough across Quebec southward into the eastern Great Lakes. Some low end severe potential may accompany this frontal passage each day, but uncertainty remains high in overlap of deep layer shear with better moisture/instability.
D6/Saturday through D8/Monday
Toward the end of next weekend D7/Sunday through D8/Monday, ensemble guidance is increasing in confidence for a large scale ridge to build in across the central/western US with rising heights and warming temperatures. Building surface high pressure across the Midwest/Great Lakes may shunt moisture southward to the Gulf states. Should this pattern continue to hold, severe potential will remain low through much of the CONUS.
..Thornton.. 05/25/2026
CLICK TO GET WUUS48 PTSD48 PRODUCT
You are looking at an outlook that is part of the medium range forecast (the outlook for days 4-8). The most important thing to note is that lack of a risk does not mean zero risk. Generally speaking, confidence has to be pretty high for the Storm Prediction Center to have an outlook area this far into the future.
When no specific risk areas are shown, you might see one of these phrases:
If you bookmark this page, it will continue to update with each new outlook that is issued.
| Day 4 | Thursday, May 28 | predictability too low |
| Day 5 | Friday, May 29 | predictability too low |
| Day 6 | Saturday, May 30 | predictability too low |
| Day 7 | Sunday, May 31 | predictability too low |
| Day 8 | Monday, June 1 | predictability too low |
← back to overviewZCZC SPCSWOD48 ALL ACUS48 KWNS 250843 SPC AC 250843
Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0343 AM CDT Mon May 25 2026
Valid 281200Z - 021200Z
DISCUSSION
D4/Thursday through D5/Friday
The western low is expected to shift northward again and phase with the northern jet stream D4/Thursday - D5/Friday. There is low confidence in chances for strong to severe storms, pending details on moisture, across the Intermountain West and northern Rockies.
Guidance suggests that as the western trough shifts northward and weak disturbances rotate across the Rockies, lee troughing across the Plains may strengthen D5/Friday, bringing a potential for low end severe risk into the central/northern High Plains. For now confidence in any corridors of organized severe risk remain too low.
A cold front will sag southward across the east coast D4/Thursday through D5/Friday as enhanced flow digs an upper level trough across Quebec southward into the eastern Great Lakes. Some low end severe potential may accompany this frontal passage each day, but uncertainty remains high in overlap of deep layer shear with better moisture/instability.
D6/Saturday through D8/Monday
Toward the end of next weekend D7/Sunday through D8/Monday, ensemble guidance is increasing in confidence for a large scale ridge to build in across the central/western US with rising heights and warming temperatures. Building surface high pressure across the Midwest/Great Lakes may shunt moisture southward to the Gulf states. Should this pattern continue to hold, severe potential will remain low through much of the CONUS.
..Thornton.. 05/25/2026
CLICK TO GET WUUS48 PTSD48 PRODUCT
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