SPC MD 1355



MD 1355 CONCERNING SEVERE POTENTIAL…WATCH UNLIKELY FOR NORTHERN OKLAHOMA

MD 1355 Image


Mesoscale Discussion 1355
NWS Storm Prediction Center Norman OK
0448 AM CDT Thu Jul 30 2020

Areas affected...northern Oklahoma

Concerning...Severe potential...Watch unlikely 

Valid 300948Z - 301215Z

Probability of Watch Issuance...5 percent

SUMMARY...A cluster of storms over north-central Oklahoma will
likely persist for a few hours, and may turn left a bit into
northeast Oklahoma. Isolated severe gusts are possible.

DISCUSSION...Surging outflow out of KS has maintained intensity with
new cluster development from northwest into north-central OK.
Mesonet observations indicate 3 to 4 mb 2-hr rises with the outflow.
Meanwhile, similar fall magnitudes have been measured in the wake of
the earlier storms over northeast OK.

VAD winds over central OK show around 30 kt west/southwest flow just
off the surface, which will serve to recover elevated instability
ahead of the cluster. Given the aforementioned pressure falls over
northeast OK, more of an eastward propagation may eventually be
preferred with a few strong gusts possible into northeast OK.

..Jewell/Grams.. 07/30/2020

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

ATTN...WFO...TSA...OUN...

LAT...LON   36199861 36549819 36739772 36839744 36799685 36589525
            36119493 35659497 35489521 35409582 35459752 35649814
            35999845 36199861 

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