SPC AC 060519
Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
1119 PM CST Fri Mar 05 2021
Valid 061200Z - 071200Z
...NO SEVERE THUNDERSTORM AREAS FORECAST...
...SUMMARY...
Severe thunderstorms are not expected.
...Northern Rockies...
Strong mid-level height falls will spread across the northern
Rockies during the day1 period ahead of a sharp short-wave trough
that will progress into western MT/WY by 07/00z. While moisture will
prove sparse across this region (PW on the order of .30 inches),
very steep lapse rates and cool profiles suggest weak convection
should develop ahead of a cold front between 20z-07/00z. Forecast
soundings suggest there may be enough buoyancy for a few lightning
flashes with the strongest updrafts.
...FL...
Primary surface wave should track across the eastern Gulf Basin into
the FL Straits by early evening in response to a digging short-wave
trough. This evolution suggests the greatest risk for thunderstorms
will focus well west of the Peninsula where buoyancy/low-level
convergence will be maximized. Even so, there appears to be a low
risk for a few thunderstorms in association with a southward-moving
cold front across the central/southern Peninsula. Generally weak
convergence over land should limit convective coverage.
..Darrow/Moore.. 03/06/2021
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