[BNAWX] Severe Storm Outlook Narrative

[EMWIN Server]

ACUS11 KWNS 041825
SWOMCD
SPC MCD 041825
WVZ000-VAZ000-KYZ000-OHZ000-TNZ000-041930-

MESOSCALE DISCUSSION 0346
NWS STORM PREDICTION CENTER NORMAN OK
0125 PM CDT MON APR 04 2011

AREAS AFFECTED...CNTRL/ERN KY

CONCERNING...TORNADO WATCH 92...

VALID 041825Z - 041930Z

THE SEVERE WEATHER THREAT FOR TORNADO WATCH 92 CONTINUES.

AREAS N/E OF WW 92 ARE BEING MONITORED FOR AN ADDITIONAL WW.

LEADING EDGE OF HIGH REFLECTIVITY ASSOCIATED WITH A FAST-MOVING QLCS
WAS ROUGHLY BOUNDED FROM SPENCER TO SIMPSON COUNTIES IN KY AS OF
1815Z. EXTRAPOLATION OF 50-60 KT FORWARD PROPAGATION SPEED SUGGESTS
THIS QLCS WILL APPROACH THE NRN/ERN EXTENT OF WW 92 BETWEEN 20-21Z.
ALTHOUGH SURFACE TEMPERATURES HAVE WARMED INTO THE LOWER TO MIDDLE
70S DOWNSTREAM OF THIS LINE...THE AXIS OF RICHER LOW-LEVEL MOISTURE
/CHARACTERIZED BY DEW POINTS AOA 60 F/ REMAINS FROM PORTIONS OF
CNTRL/WRN KY SWWD. GIVEN THE FAST PROPAGATION OF THE QLCS
INTERCEPTING THE RETURNING HIGHER-QUALITY BOUNDARY-LAYER
MOISTURE...THERE IS SOME UNCERTAINTY OVER THE ROBUSTNESS OF THE
SEVERE THREAT FARTHER TO THE N/E OF WW 92. NEVERTHELESS...50-60 KT
SWLYS AT 1 KM AGL AMIDST STRONG DEEP-LAYER SHEAR /PER AREA VAD WIND
PROFILES/ WILL REMAIN SUPPORTIVE OF BOWING SEGMENTS AND TRANSIENT
LOW-LEVEL CIRCULATIONS PRODUCING PRIMARILY DAMAGING WINDS AND A FEW
TORNADOES.

..GRAMS.. 04/04/2011

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

ATTN...WFO...RLX...MRX...JKL...ILN...LMK...OHX...

LAT...LON   36828665 37788575 38738486 39098351 38988286 38628220
            38178202 37298226 36958263 36598312 36518364 36478432
            36538536 36568610 36688643 36828665


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