SPC Dec 12, 2024 0830 UTC Day 3 Severe Thunderstorm Outlook
SPC 0830Z Day 3 Outlook Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0219 AM CST Thu Dec 12 2024 Valid 141200Z - 151200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Isolated thunderstorms are possible from the Texas Hill Country into the Middle/Lower Mississippi Valley on Saturday. ...Synopsis and Discussion... A stacked mid-latitude cyclone is forecast to be over the central Plains early Saturday morning before progressing northeastward throughout the day and ending the period over the Mid MS Valley. This cyclone will be accompanied by strong mid-level jet throughout its base, which will spread from OK northeastward across
SPC Dec 12, 2024 0700 UTC Day 2 Convective Outlook
SPC 0700Z Day 2 Outlook Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1255 AM CST Thu Dec 12 2024 Valid 131200Z - 141200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe thunderstorms are not expected through Friday night. ...Synopsis... A shortwave trough is forecast to begin the period over the Four Corners before continuing eastward across the central Rockies and ending the period as a closed cyclone over the central Plains. An associated surface low is expected to move quickly northeastward just ahead of this shortwave, progressing from the northeast NM/southeast CO vicinity into eastern KS. As it
SPC Dec 12, 2024 0600 UTC Day 1 Convective Outlook
SPC 1200Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1104 PM CST Wed Dec 11 2024 Valid 121200Z - 131200Z ...NO THUNDERSTORM AREAS FORECAST... ...SUMMARY... The risk for thunderstorms appears negligible across the U.S. today through tonight. ...Synopsis... As significant lower/mid-tropospheric cyclogenesis proceeds across northeastern Quebec, models indicate that large-scale mid-level troughing initially encompassing much of the eastern U.S. will begin to lose amplitude later today through tonight. A couple of digging short wave perturbations may maintain broad deep troughing across the Great Lakes and much of the Northeast; however, low amplitude ridging appears
SPC – No watches are valid as of Wed Dec 11 21:31:01 UTC 2024
No watches are valid as of Wed Dec 11 21:31:01 UTC 2024.
SPC – No MDs are in effect as of Wed Dec 11 21:31:01 UTC 2024
No Mesoscale Discussions are in effect as of Wed Dec 11 21:31:01 UTC 2024.
SPC Dec 11, 2024 2000 UTC Day 1 Convective Outlook
SPC 2000Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0159 PM CST Wed Dec 11 2024 Valid 112000Z - 121200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS INTO THIS EVENING OVER THE COASTAL MID-ATLANTIC... ...SUMMARY... Severe wind gusts and a tornado or two are possible from the eastern Carolinas to southern New England. ...20Z Update... Severe probabilities have been trimmed along the western portion of the outlook, and reduced along the southern New England coast. For both areas, widespread stratiform rain has limited destabilization and the overall severe threat. Farther south, severe probabilities
SPC Dec 11, 2024 1930 UTC Day 3 Severe Thunderstorm Outlook
SPC 1930Z Day 3 Outlook Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0102 PM CST Wed Dec 11 2024 Valid 131200Z - 141200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe thunderstorms are not expected through Friday night. ...Discussion... A compact shortwave trough near the Four Corners Area should move across the southern Rockies into the central Great Plains. The attendant surface cyclone will be weak, tracking from the Raton Mesa vicinity to eastern KS. Modifying moisture return from the western Gulf will become sufficient for elevated convection by Friday Night across parts of the south-central states. Moderate
SPC Dec 11, 2024 1730 UTC Day 2 Convective Outlook
SPC 1730Z Day 2 Outlook Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1106 AM CST Wed Dec 11 2024 Valid 121200Z - 131200Z ...NO THUNDERSTORM AREAS FORECAST... ...SUMMARY... Thunderstorm probabilities are negligible on Thursday. ...Discussion... A quiescent pattern for thunderstorm activity will envelop much of the CONUS tomorrow. Two areas of sub-10 percent thunderstorm probabilities remain apparent. An Arctic air mass will settle into the Upper Great Lakes. Downstream, lake-effect snow bands will persist with the most organized one expected in the lee of eastern Lake Ontario. A few lightning flashes are possible during the period of
SPC MD 2258
MD 2258 CONCERNING SEVERE POTENTIAL...WATCH UNLIKELY FOR THE FLORIDA PANHANDLE INTO SOUTHWEST GEORGIA Mesoscale Discussion 2258 NWS Storm Prediction Center Norman OK 0142 AM CST Wed Dec 11 2024 Areas affected...the Florida Panhandle into southwest Georgia Concerning...Severe potential...Watch unlikely Valid 110742Z - 111115Z Probability of Watch Issuance...20 percent SUMMARY...A gradual increase in thunderstorms is expected from parts of the Florida Panhandle into southwest Georgia, and isolated severe cannot be ruled out. DISCUSSION...Surface analysis shows a cold front extending from northern GA across southeast AL and into the northeast Gulf of Mexico. Meanwhile, a north-south oriented warm front remains draped across
SPC – No watches are valid as of Wed Dec 11 08:17:02 UTC 2024
No watches are valid as of Wed Dec 11 08:17:02 UTC 2024.