SPC MD 1472

MD 1472 CONCERNING SEVERE THUNDERSTORM WATCH 432… FOR PORTIONS OF SRN KS/NRN OK

MESOSCALE DISCUSSION 1472
NWS STORM PREDICTION CENTER NORMAN OK
0848 PM CDT MON JUL 22 2013

AREAS AFFECTED...PORTIONS OF SRN KS/NRN OK

CONCERNING...SEVERE THUNDERSTORM WATCH 432...

VALID 230148Z - 230245Z

THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 432
CONTINUES.

SUMMARY...THE THREAT FOR SVR TSTMS CONTINUES ACROSS THE WW AREA.

DISCUSSION...STG/SVR TSTMS CONTINUE TO MOVE/PROPAGATE GENLY SWD
ACROSS WW AREA ...WITH A WEAKENING TREND GENLY NOTED SINCE 0115Z.
LATEST AREA VWP DATA DEPICTS A MODESTLY STRENGTHENING LOW-LEVEL JET
FEEDING INTO TSTMS...WITH INCREASING WARM ADVECTION LIKELY
DEVELOPING ABOVE SHALLOW OUTFLOW THROUGH 05Z. DESPITE THE LOSS OF
DAYTIME HEATING...A MODERATELY UNSTABLE AIR MASS AND 35-40 KTS OF
EFFECTIVE SHEAR SUGGESTS THAT A SVR HAIL AND WIND THREAT WILL
CONTINUE FOR AT LEAST A COUPLE MORE HOURS WITH THE STRONGER TSTMS.

..BUNTING/HART.. 07/23/2013

...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...

ATTN...WFO...ICT...OUN...DDC...AMA...

LAT...LON   37870091 38019920 37739723 36329711 36159799 36729953
            37080104 37870091

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