
Day 1 Convective Outlook CORR 1 NWS Storm Prediction Center Norman OK 0809 PM CDT Tue Apr 07 2026 Valid 080100Z - 081200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... CORRECTED FOR WORDING ...SUMMARY... Isolated thunderstorms remain possible tonight over the northern and southern High Plains. Severe thunderstorms are not expected. ...Synopsis... A mid-level trough continues to progress across the northern Rockies, providing enough mechanical lift amid cooler temperatures aloft to support isolated high-based thunderstorms atop a dry boundary layer. A low-amplitude mid-level impulse will also continue to traverse the southern Rockies, supporting scattered lightning flashes given the presence of scant buoyancy. These storms should gradually diminish through the evening as boundary-layer stabilization from nocturnal cooling takes place. ..Squitieri.. 04/08/2026Read more

Day 3-8 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0448 PM CDT Tue Apr 07 2026 Valid 091200Z - 151200Z ...Synopsis... Fairly zonal flow dominates much of central CONUS on Day 3/Thursday as upper-level troughing traverses the Northeast and a cutoff low approaches the California coast. However, it's not until Day 4/Friday into Day 5/Saturday that the center of the low finally moves onshore as a result of another trough moving across the northern Pacific. By Day 6/Sunday, this upper-level low also cuts off, sending the first cutoff low northeastward across the Great Plains and Midwest by Day 8/Monday. This scenario is likely to result in multiple days of precipitation across much of the western and central US, which would temporarily dampen fire weather threats. Sporadic areas of little to no precipitation will be possible, but are difficult to pin point due to the highly dynamic pattern. ...Great Basin/Southwest - Day 3/Thursday through Day 4/Friday... The best chances for sporadic fire weather conditions under southerly flow will occur on Day 3/Thursday through Day 4/Friday across portions of the eastern Great Basin and Southwest. Southwesterly winds of 10-20 mph combined with 15-20% RH in northwest AZ and southern NV may generate locally elevated fire weather concerns on Day 3/Thursday. Similar conditions also appear likely across eastern UT on Day 4/Friday. However, recent cooler weather, precipitation, and resultant questionably receptive fuels will preclude any probabilities at this time. While this event could promote a brief period of drier fuel conditions across this region, precipitation appears likely with the aforementioned low pressure system later in the week. ...Southern Plains - Day 6/Sunday through Day 7/Monday... Possible fire weather conditions return on Day 6/Sunday as a more potent shortwave moves across the High Plains. On Day 7/Monday, a secondary upper-level trough is forecast to move across the Southwest. Considering the overall pattern, areas behind an emerging dryline will need to be watched closely for fire weather concerns. However, given model uncertainty in the timing of the shortwave and coincident surface low development, and the potential for widespread appreciable rainfall on Day 4/Friday - Day 5/Saturday, critical probabilities have been withheld for now. ..Elizalde-Garcia/Stearns.. 04/07/2026 ...Please see www.spc.noaa.gov/fire for graphic product...Read more