SPC MD 407



MD 0407 CONCERNING SEVERE THUNDERSTORM WATCH 92… FOR PORTIONS OF CENTRAL FLORIDA

MD 0407 Image

Mesoscale Discussion 0407
NWS Storm Prediction Center Norman OK
0240 PM CDT Fri Apr 19 2019

Areas affected...Portions of central Florida

Concerning...Severe Thunderstorm Watch 92...

Valid 191940Z - 192115Z

The severe weather threat for Severe Thunderstorm Watch 92
continues.

SUMMARY...Severe threat continues across Severe Thunderstorm Watch
092. Isolated damaging wind gusts are still possible.

DISCUSSION...A surface low, in tandem with a mid-level shortwave
trough located across the central Appalachians, continues to move
northeastward, with deep-layer ascent translating away from the
watch area. Overall convective trends have been steady over the past
few hours, where modest instability (i.e. MLCAPE of 1500-2000 J/kg)
remains across the Florida Peninsula. In addition, bulk effective
shear values of 40 knots, resultant from the juxtaposition of a
synoptic scale low-level jet and relatively stronger mid-level flow,
is expected to remain across the area. As such, the threat for
isolated damaging wind gusts will remain over the next few hours.

..Squitieri/Thompson.. 04/19/2019

...Please see www.spc.noaa.gov for graphic product...

ATTN...WFO...MFL...MLB...TBW...JAX...

LAT...LON   26218281 29378180 29377980 26218088 26218281 

Read more



Source link

  • Editor