Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0742 PM CDT Tue Jul 07 2020 Valid 080100Z - 081200Z ...THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS ACROSS THE NORTHERN HIGH PLAINS... ...SUMMARY... Severe squall line with damaging winds will move across eastern Montana into North Dakota later this evening. Isolated severe thunderstorms are also possible across South Dakota. ...Northern Plains... Mature squall line, extending at least 225 mi, is surging east-northeast at 40-45kt across eastern MT. This activity has organized ahead of a strong short-wave trough that will eject across ND into southeast MB by sunrise. 00z sounding from GGW exhibited strong shear with MLCAPE around 2000 J/kg. With a reservoir of moderate instability extending just downstream into the western Dakotas, there is reason to believe this linear MCS will progress steadily across the northern Plains ahead of the short wave. Other high-based storms have developed across the NE Panhandle into southwest SD. This activity is likely producing locally strong winds as well. Severe winds will be the main threat with convection the rest of tonight. ..Darrow.. 07/08/2020Read more
from SPC Forecast Products http://www.spc.noaa.gov/products/outlook/day1otlk_0100.html
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