Content-Length: 15707 | pFad | http://www.spc.noaa.gov/products/outlook/day1otlk_0100_prt.html
=Sep 20, 2024 0100 UTC Day 1 Convective Outlook | |||||||||||||
Updated: Fri Sep 20 00:45:01 UTC 2024 ( | ) | |||||||||||||
Probabilistic to Categorical Outlook Conversion Table |
Categorical Graphic | |||||||||||||
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Probabilistic Tornado Graphic | |||||||||||||
Probability of a tornado within 25 miles of a point. Hatched Area: 10% or greater probability of EF2 - EF5 tornadoes within 25 miles of a point. |
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Probabilistic Damaging Wind Graphic | |||||||||||||
Probability of damaging thunderstorm winds or wind gusts of 50 knots or higher within 25 miles of a point. Hatched Area: 10% of greater probability of wind gusts 65 knots or greater within 25 miles of a point. |
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Probabilistic Large Hail Graphic | |||||||||||||
Probability of hail 1" or larger within 25 miles of a point. Hatched Area: 10% or greater probability of hail 2" or larger within 25 miles of a point. |
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SPC AC 200045 Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0745 PM CDT Thu Sep 19 2024 Valid 200100Z - 201200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS FROM PARTS OF THE UPPER MISSISSIPPI VALLEY INTO PARTS OF NORTHEAST OKLAHOMA... ...SUMMARY... Scattered strong to severe storms remain possible through this evening from the upper Mississippi Valley southward into northeast Oklahoma. A shortwave trough will shift northeastward out over the Dakotas and MN this evening, as an upper low moves northeastward across MB. Winds aloft will weaken over the area, though cooling aloft will continue spreading into the upper Great Lakes. At the surface, a weak front/wind shift extends from the main surface low over MB southward across MN and into IA, and from southeast KS into northwest OK. The strongest cells currently stretch from the MN Arrowhead southward into north central IA, with primarily discrete storm mode along the front. Farther south, a secondary area of storms persist over southeast KS into northeast OK. Tornado watch #678 continues over northwest WI this evening, where low-level shear is a bit stronger. Storms across this area may persist for several more hours before dissipating, as temperatures aloft are cooling. Farther south, Severe Thunderstorm watches #677 and #679 continue along the boundary, where storms remain within the diurnal instability axis. Temperatures aloft are quite warm here, and storms should dissipate sooner than points north. Until then, locally severe gusts or hail will be possible. For more information see mesoscale discussion #2089. ..Jewell.. 09/20/2024 NOTE: THE NEXT DAY 1 OUTLOOK IS SCHEDULED BY 0600Z |
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