Monday, April 18, 2011

DAY1SVR: Day 1 Convective Outlook

ACUS01 KWNS 190056
SWODY1
SPC AC 190054

DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0754 PM CDT MON APR 18 2011

VALID 190100Z - 191200Z

...THERE IS A SLGT RISK OF SVR TSTMS FROM CENTRAL MO EWD TO SRN
INDIANA...

...MO/SRN IL/SRN INDIANA AND VICINITY...
STRENGTHENING LOW-LEVEL JET -- AND ASSOCIATED INCREASE IN WARM
ADVECTION/ISENTROPIC LIFT INVOF/N OF THE SURFACE FRONT -- APPEARS
LIKELY TO SUPPORT ELEVATED CONVECTIVE EXPANSION OVER THE NEXT
SEVERAL HOURS.

WITH STEEP LAPSE RATES ALOFT SUPPORTING MODERATE ELEVATED
INSTABILITY AND MODERATE MID-LEVEL WSWLYS SUFFICIENT TO SUSTAIN A
FEW STRONGER UPDRAFTS...WILL MAINTAIN SLIGHT RISK FOR MARGINAL HAIL
ACROSS THIS REGION.

..GOSS.. 04/19/2011

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