Subj : DAY1SVR: Day 1 Convective Outlook To : wx-storm@lists.illinois.edu From : COD Weather Processor Date : Fri Jun 09 2023 06:00:04 ACUS01 KWNS 090600 SWODY1 SPC AC 090558 Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1258 AM CDT Fri Jun 09 2023 Valid 091200Z - 101200Z ....THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS FROM THE CENTRAL HIGH PLAINS TO THE SOUTHERN PLAINS...AND ACROSS PARTS OF FLORIDA AND SOUTHERN GEORGIA... ....SUMMARY... A few severe storms capable of producing gusty winds and possibly marginal hail will be possible late Friday afternoon/evening from eastern Colorado into the southern Plains. A few strong gusts and marginal hail will also be possible across parts southern Georgia and into northern and eastern Florida. ....Synopsis... Cyclonic flow aloft will remain across the eastern U.S., surrounding the upper low which will linger across New England through the period. In the West, a weakening low will continue moving slowly northward, into the Pacific Northwest region, while a second low is forecast to evolve over the eastern Pacific, remaining offshore through the period. In between, ridging will prevail from western Canada southeastward to the southern Plains. At the surface, a cold front will continue drifting southward across southern Georgia into northern Florida, while arcing westward and then northwestward across the Plains states through the period. ....Central High Plains into Oklahoma, and southward to the Texas Big Bend area... Afternoon thunderstorms are forecast to develop over eastern Colorado, as daytime heating of the seasonably moist boundary layer (low 50s dewpoints) results in ample destabilization. Isolated storms are also expected to develop over parts of the Transpecos and Big Bend regions of Texas. Gusty winds -- and possibly marginal hail -- will be possible with a couple of the strongest storms. Locally damaging wind risk will likely continue after dark, as a southerly low-level jet develops across western portions of Kansas/Oklahoma/Texas, and then veers slightly with time. This should help support a southeastward-moving MCS, with gusty winds associated with the leading outflow. ....Southern Georgia and parts of Florida... As a cold front sags slowly southward across Georgia and into northern Florida, heating/destabilization of the moist warm-sector boundary layer is expected. This will contribute to afternoon storm development -- both near the front, and near the east-coast sea breeze boundary. With moderate mid-level westerlies residing across the area, a few stronger storms will likely evolve -- a couple of which may prove capable of producing locally strong/potentially damaging wind gusts, and marginally severe hail. Risk will gradually diminish through the evening as storms weaken/move offshore. ...Goss/Bentley.. 06/09/2023 $$ = = = To unsubscribe from WX-STORM and you already have a login, go to https://lists.illinois.edu and use the "Unsubscribe" link. Otherwise email Chris Novy at cnovy@cox.net and ask to be removed from WX-STORM. --- SBBSecho 3.14-Linux * Origin: capitolcityonline.net * Telnet/SSH:2022/HTTP (1:2320/105) .