- Moderator
- #461
SPC D4 for possible MCS across parts of the SE on Friday.
View attachment 14470
As long as it's not Saturday! Praying for fantastic weather Saturday night!!
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SPC D4 for possible MCS across parts of the SE on Friday.
View attachment 14470
...Evening to early morning guidance has horribly simulated the bulk of ongoing convection, with the 07-09Z HRRR runs at least in the ballpark...
I don't know what's been going on, but the CAMs have been horrible at depicting morning convection recently. I don't know if something is up with the data input or what but it's been worse than I can ever remember seeing it.SPC in with an effective "the struggle is real" on the 13Z outlook:
...OH Valley/Midwest...
A weakening MCS is ongoing across the Mid-MS Valley along a warm
front. A continued weakening trend is anticipated through midday
with a remnant MCV tracking east across central IL/IN. As the warm
front advances northeast, a plume of 60s surface dew points combined
with pockets of greater insolation to the south and in the wake of
the MCV, in conjunction with steepening mid-level lapse rates given
the approaching shortwave trough should result in destabilization
and a pronounced gradient of MLCAPE this afternoon. Several
supercells will likely develop within a belt of strong mid-level
westerlies attendant to the shortwave trough and enhanced
lower-level flow attendant to the MCV. Should adequate
destabilization occur where low-level hodographs are enlarged,
potential for a few tornadoes will exist, in addition to scattered
damaging winds and large hail. Convection should subside after dusk,
but adequate low to deep-layer shear may support an isolated severe
threat persisting tonight.
..Grams/Broyles.. 06/08/2022