SPC MD 37



MD 0037 CONCERNING SEVERE THUNDERSTORM WATCH 14… FOR SOUTHERN OH…CENTRAL/EASTERN KY

MD 0037 Image

Mesoscale Discussion 0037
NWS Storm Prediction Center Norman OK
1135 AM CST Sat Jan 11 2020

Areas affected...Southern OH...Central/eastern KY

Concerning...Severe Thunderstorm Watch 14...

Valid 111735Z - 111900Z

The severe weather threat for Severe Thunderstorm Watch 14
continues.

SUMMARY...Localized damaging wind threat continues with weakening
line of convection. Downstream watch issuance is not currently
anticipated.

DISCUSSION...At 1730Z, a weakening line of convection is moving
eastward across KY and southwest OH. Instability is negligible
across this area, resulting in a loss of lightning activity over the
past hour with the line. Strong wind fields remain in place
downstream of ongoing convection, with non-thunderstorm wind gusts
in the 40-55 mph range noted across areas where some boundary-layer
heating/mixing has occurred. While a general slow weakening trend is
expected to continue, some potential for damaging wind gusts will
remain with any stronger convective elements, given the strong
background wind field and steepening low-level lapse rates. 

Some potential for damaging gusts will likely spread east of WW 14
with the next 1-2 hours. Downstream watch issuance is not currently
expected given the weakening trends noted above, but local watch
extension is a possibility to cover any short-term threats.

..Dean/Hart.. 01/11/2020

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

ATTN...WFO...RLX...JKL...ILN...LMK...

LAT...LON   36768557 37928508 39028455 39248399 39208331 38888299
            38238282 37558302 37008338 36898348 36758366 36648415
            36708493 36678541 36768557 

Read more



Source link

  • Editor