Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0757 PM CDT Fri Aug 14 2020 Valid 150100Z - 151200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS OVER A PORTION OF THE SOUTHERN AND CENTRAL PLAINS AS WELL AS THE UPPER MISSISSIPPI VALLEY AND GREAT LAKES REGIONS... ...SUMMARY... Scattered storms will continue from the upper Mississippi Valley into the Upper Great Lakes through mid evening with a threat for mainly isolated large hail, damaging wind and perhaps a brief tornado. Elsewhere isolated severe storms with a threat for large hail and damaging wind will persist through mid evening from central Kansas into the Texas and Oklahoma Panhandles. ...Upper Mississippi Valley and Great Lakes region... Thunderstorms will continue developing along an eastward-advancing cold front from extreme eastern MN into northwest WI next few hours. Some southward development into northern IA is also possible. Primary severe threat will be through about 02Z or 03Z followed by a decrease in intensity as storms begin to shift east of the instability corridor. Large hail and damaging wind are the main threats. ...Kansas through the Oklahoma and Texas Panhandles... Isolated storms capable of large hail to very large hail will persist through mid evening from KS into the TX and OK Panhandles. Activity is developing along a southward-advancing cold front and within an environment of strong instability (2000-4000 J/kg MLCAPE). The 00Z RAOB from DDC shows fairly strong convective inhibition at the base of the EML, and inhibition will increase further as the surface layer stabilizes. This should result in a diminishing trend after 03Z. ..Dial.. 08/15/2020Read more
from SPC Forecast Products http://www.spc.noaa.gov/products/outlook/day1otlk_0100.html
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