Subj : MESO: Mesoscale Discussion 1983 To : wx-storm@lists.illinois.edu From : COD Weather Processor Date : Sun Aug 13 2023 19:58:50 ACUS11 KWNS 131958 SWOMCD SPC MCD 131958=20 MEZ000-MAZ000-NHZ000-132100- Mesoscale Discussion 1983 NWS Storm Prediction Center Norman OK 0258 PM CDT Sun Aug 13 2023 Areas affected...eastern NH...Maine Concerning...Severe Thunderstorm Watch 640... Valid 131958Z - 132100Z The severe weather threat for Severe Thunderstorm Watch 640 continues. SUMMARY...The risk for isolated large hail and damaging gusts will continue across the watch area. The greatest severe risk through 5pm EDT is over central Maine in association with a few multicells and supercells. DISCUSSION...Visible-satellite imagery shows a destabilizing cumulus field over northern Maine, which is located downstream of strong/severe thunderstorm activity. Surface temperatures are gradually warming into the lower 70s where the stratus has eroded for more than 1 hour, and this warmer and increasingly destabilizing boundary layer will become more favorable for the ongoing storms to maintain vigor as they move into northern portions of Maine. As such, the greatest risk for large hail and damaging gusts will occur with storms over central Maine as they move east near I-95.=20=20 Farther southwest, additional storms will move into western parts of Maine and continue to develop over NH over the next 1-2 hours. It is unclear regarding the coverage of severe activity with these storms since some convective overturning via outflow has spread across parts of western/southern Maine. ...Smith.. 08/13/2023 ....Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!_jBj7KYp1sms34CjLQv9ltpvSioHSO6pHTwCFzQwaTRQbUJHV3LQHu0t83bxu0crTSjvfloTy= B7gYBxkAoTB5c4D51c$ for graphic product... ATTN...WFO...CAR...GYX...BOX... LAT...LON 42747118 42747125 42777135 42827143 43567173 43597173 45317108 46706999 47466922 47366823 47336816 47206796 47076779 45926775 45826776 44406796 44106833 43826889 42877082 42747118 42747118=20 =3D =3D =3D 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) .