SPC Mar 20, 2025 1730 UTC Day 2 Convective Outlook
SPC 1730Z Day 2 Outlook Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1159 AM CDT Thu Mar 20 2025 Valid 211200Z - 221200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe thunderstorms are not expected Friday. ...Mid-MO/MS Valleys... A compact shortwave impulse currently over the northern Rockies will progress across parts of the Mid-MO/MS Valleys Friday. Despite a dearth of low-level moisture, diurnally steepening lapse rates along with a focused corridor of moderate large-scale ascent should support a swath of isolated to scattered low-topped convection, primarily from late morning to early evening. Meager buoyancy should be adequate for
SPC Mar 19, 2025 1730 UTC Day 2 Convective Outlook
SPC 1730Z Day 2 Outlook Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1136 AM CDT Wed Mar 19 2025 Valid 201200Z - 211200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Thunderstorm development will be possible on Thursday in parts of the Mid-Atlantic and northern Rockies. A severe threat is not expected. ...Synopsis... A mid-level trough will traverse the Rockies as a second upper trough ejects into the Atlantic tomorrow (Thursday). A surface cold front will accompany the East Coast trough, immediately preceded by marginal low-level moisture (e.g. low 50s F surface dewpoints). Scant buoyancy, driven by the meager
SPC Mar 18, 2025 1730 UTC Day 2 Convective Outlook
SPC 1730Z Day 2 Outlook Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1225 PM CDT Tue Mar 18 2025 Valid 191200Z - 201200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS FOR PORTIONS OF EASTERN ILLINOIS INTO WESTERN INDIANA... ...SUMMARY... Scattered severe thunderstorms are possible on Wednesday across parts of eastern Illinois and western Indiana from mid-afternoon to early evening. Severe gusts and hail will be the primary threats, though a couple of tornadoes are also possible. ...Synopsis... A potent mid-level trough will traverse the Plains and overspread the MS Valley, encouraging an intense surface cyclone to
SPC Mar 17, 2025 1730 UTC Day 2 Convective Outlook
SPC 1730Z Day 2 Outlook Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1206 PM CDT Mon Mar 17 2025 Valid 181200Z - 191200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS FOR PORTIONS OF EASTERN NEBRASKA INTO IOWA... ...SUMMARY... Isolated, marginally severe hail will remain possible during the overnight late Tuesday into early Wednesday from eastern Nebraska across much of Iowa. ...Synopsis... A pronounced mid-level trough will eject into the Plains states, encouraging rapid surface cyclone development and intensification along the KS/OK border Tuesday. As this occurs, very strong low-level flow will encourage the northward advection of
SPC Mar 16, 2025 1730 UTC Day 2 Convective Outlook
SPC 1730Z Day 2 Outlook Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1200 PM CDT Sun Mar 16 2025 Valid 171200Z - 181200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe thunderstorms are not expected Monday. ...Discussion... A return to negligible severe potential across the CONUS will occur on Monday. In the West, a broad upper trough will progress with multiple embedded shortwave impulses. The primary impulse will move across parts of CA into the southern Great Basin, aiding in overall amplification of the trough by Monday night. A large plume of cool mid-level temperatures combined with modest
SPC Feb 16, 2025 1730 UTC Day 2 Convective Outlook
SPC 1730Z Day 2 Outlook Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1110 AM CST Sun Feb 16 2025 Valid 171200Z - 181200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... A few thunderstorms may occur over parts of southern Florida and the Keys on Monday. ...Synopsis... As upper short-wave troughing departs the Northeast Monday, briefly zonal/westerly flow aloft will prevail. Later in the period, however, gradual amplification of the flow field will begin over the West, as a short-wave trough digs southeastward out of the Pacific Northwest across the Great Basin toward the Four Corners region. At the
SPC Feb 15, 2025 1730 UTC Day 2 Convective Outlook
SPC 1730Z Day 2 Outlook Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1124 AM CST Sat Feb 15 2025 Valid 161200Z - 171200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS SOUTHERN GEORGIA...NORTHERN FLORIDA...AND THE EASTERN HALF OF THE FLORIDA PANHANDLE... ...SUMMARY... Locally strong wind gusts are possible Sunday morning, particularly across portions of the Southeast but possibly as far north as the Mid-Atlantic region. ...Synopsis... A vigorous/fast-moving short-wave trough -- embedded in broader cyclonic flow aloft -- will move quickly eastward across the eastern quarter of the U.S. Sunday. As this feature reaches the Atlantic
SPC Feb 14, 2025 1730 UTC Day 2 Convective Outlook
SPC 1730Z Day 2 Outlook Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1120 AM CST Fri Feb 14 2025 Valid 151200Z - 161200Z ...THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS ACROSS NORTHERN LOUISIANA...SOUTHEAST ARKANSAS...MUCH OF MISSISSIPPI...FAR SOUTHWEST TENNESSEE...AND WEST-CENTRAL ALABAMA.... ...SUMMARY... Severe weather is expected from East Texas into much of the Southeast and parts of the Mid-South on Saturday. Scattered to numerous damaging wind gusts and a few tornadoes are the primary threats. Storms are expected from late afternoon through the overnight hours. ...Synopsis... A mid-level trough will traverse from the Southwest Saturday morning to
SPC Jan 21, 2025 1730 UTC Day 2 Convective Outlook
SPC 1730Z Day 2 Outlook Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1124 AM CST Tue Jan 21 2025 Valid 221200Z - 231200Z ...NO THUNDERSTORM AREAS FORECAST... ...SUMMARY... Thunderstorms are not expected on Wednesday. ...Synopsis... A deep mid/upper-level trough will remain in place over most of the CONUS on Wednesday. Anomalously cold conditions are expected from the Great Plains to the Eastern Seaboard, in the wake of a strong cold front. Weak MUCAPE may persist across far south FL and the Keys very early in the forecast period, but deep convection appears unlikely due to warm temperatures
SPC Jan 20, 2025 1730 UTC Day 2 Convective Outlook
SPC 1730Z Day 2 Outlook Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1102 AM CST Mon Jan 20 2025 Valid 211200Z - 221200Z ...NO THUNDERSTORM AREAS FORECAST... ...SUMMARY... Thunderstorms are not forecast on Tuesday through Tuesday night. ...Synopsis... Thunder potential will be nil across much of the CONUS during the D2 period. Deep convection will be relegated to the Gulf, initially over the west-central portion before spreading towards the southeast part late. The slimmest of elevated buoyancy (MUCAPE below 100 J/kg) along the Upper TX to LA Gulf Coast may coincide with mixed-phase parcels, supporting weak convection