Tag: 0600

SPC 0600Z Day 2 Outlook Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1222 AM CDT Sat Apr 12 2025 Valid 131200Z - 141200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe thunderstorms are not expected on Sunday or Sunday night. ...Upper MS Valley to the Great Lakes... Isolated, elevated thunderstorms are expected to be the predominant convective scenario on Sunday. An amplifying shortwave trough will move east across northern portions of the Great Plains and Upper Midwest. This will yield deepening of a surface cyclone from the central Plains to Lake Superior. Despite this amplification, poor quality boundary-layer

SPC 1200Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1246 AM CDT Sat Apr 12 2025 Valid 121200Z - 131200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF SOUTHEAST MONTANA AND NORTHERN WYOMING... ...SUMMARY... Thunderstorms with isolated severe gusts are possible from the Big Horns to the Black Hills from this afternoon into the evening. ...Southeast Montana/Northern Wyoming/Western South Dakota... A shortwave mid-level trough will move eastward across the Pacific Northwest today, as an associated 50 to 60 knot jet streak translates eastward into the northern Rockies. Ahead of the trough

SPC 0600Z Day 2 Outlook Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1237 AM CDT Fri Apr 11 2025 Valid 121200Z - 131200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS IN PARTS OF NORTHEAST WY/SOUTHEAST MT/WESTERN SD... ...SUMMARY... Isolated severe gusts to 65 mph are possible from the Big Horns to the Black Hills during the late afternoon to mid-evening Saturday. ...Big Horns to the Black Hills... A shortwave trough over WA/southern BC at 12Z Saturday will progress across the northern Rockies and MT. Mid-level height falls will overspread the northern High Plains during peak diurnal

SPC 1200Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1224 AM CDT Fri Apr 11 2025 Valid 111200Z - 121200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF THE EASTERN CAROLINAS...SOUTHEAST VIRGINIA...SOUTHEAST GEORGIA AND NORTHERN FLORIDA... ...SUMMARY... Isolated strong to locally severe thunderstorms are possible from the eastern Carolinas into southeast Virginia and across far southeast Georgia and northern Florida. ...Eastern Carolinas/Southeast Virginia/Southeast Georgia/Northern Florida... At mid-levels, a trough will move eastward across the eastern U.S. today, as a jet streak rounds the base of the system. At the surface, a

SPC 0600Z Day 2 Outlook Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1234 AM CDT Thu Apr 10 2025 Valid 111200Z - 121200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS IN PARTS OF THE SOUTHEAST... ...SUMMARY... Isolated severe hail and damaging winds are possible across parts of the Southeast from late morning through the afternoon Friday. ...Eastern NC vicinity... A leading shortwave impulse rotating through the basal portion of a broader eastern U.S. longwave trough will yield strengthening forcing for ascent during the late morning. Some 00Z HREF members, notably the NSSL and FV3 indicate thunderstorm

SPC 1200Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1230 AM CDT Thu Apr 10 2025 Valid 101200Z - 111200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS FROM PORTIONS OF THE LOWER OHIO RIVER VALLEY INTO THE DEEP SOUTH... ...SUMMARY... Scattered strong-severe thunderstorms are expected from portions of the lower Ohio Valley into the Deep South this afternoon. Hail and wind are the primary concerns. ...Discussion... Strong 500mb speed max is translating across the central Plains toward the Mid South. This will allow an upper trough to deepen east of the MS River

SPC 0600Z Day 2 Outlook Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1259 AM CDT Wed Apr 09 2025 Valid 101200Z - 111200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS PORTIONS OF THE MID/DEEP SOUTH AND TENNESSEE VALLEY... ...SUMMARY... Scattered severe storms capable of producing large hail and damaging gusts will be possible across portions of the Mid/Deep South and Tennessee Valley. ...Synopsis... A positively tiled large-scale trough will advance southeastward from the Upper MS Valley/Midwest to the OH/TN Valleys through the period. Within the base of the trough, a 70-80-kt west-northwesterly midlevel jet will

SPC 1200Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1221 AM CDT Wed Apr 09 2025 Valid 091200Z - 101200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Thunderstorms are possible across portions of the Midwest, the Upper Midwest, and the northern High Plains, though severe storms are not expected. ...Synopsis... A shortwave trough in the northern Plains early this morning will move southeastward into the mid-Mississippi Valley and undergo modest amplification. A weak surface low will move swiftly southeastward along with the trough. A warm front will be positioned within parts of the Upper Midwest

SPC 0600Z Day 2 Outlook Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1219 AM CDT Tue Apr 08 2025 Valid 091200Z - 101200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Thunderstorms are possible across portions of the the Middle Mississippi Valley and northern High Plains, though severe storms are not expected. ...Synopsis and Discussion... A midlevel trough will amplify as it advances southeastward from the northern Plains into the Midwest, while a related surface low and southwestward-extending cold front overspread the Mid MS/OH Valleys. Despite limited boundary-layer moisture, steep midlevel lapse rates will yield sufficient instability (albeit weak)

SPC 1200Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1215 AM CDT Tue Apr 08 2025 Valid 081200Z - 091200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Isolated strong storms may occur over far southern Florida and the Keys tonight into Wednesday morning, and from southeast Montana to the Black Hills. ...Synopsis... A positive-tilt trough in the western Gulf will slide eastward through the day. This trough will eventually reach the Florida Peninsula late tonight into Wednesday morning. In the West, an upper ridge will build with the strongest flow aloft situated over the Northwest