[BNAWX] Severe Storm Outlook Narrative

[EMWIN Server]

ACUS11 KWNS 200545
SWOMCD
SPC MCD 200545
TNZ000-ALZ000-KYZ000-MSZ000-200715-

MESOSCALE DISCUSSION 0391
NWS STORM PREDICTION CENTER NORMAN OK
1245 AM CDT MON APR 20 2015

AREAS AFFECTED...MIDDLE TN/NORTHERN AL/FAR SOUTHEAST KY AND PORTIONS
OF MS

CONCERNING...TORNADO WATCH 84...

VALID 200545Z - 200715Z

THE SEVERE WEATHER THREAT FOR TORNADO WATCH 84 CONTINUES.

SUMMARY...LOCALLY DAMAGING WINDS REMAINS A CONCERN WITH AN
EASTWARD-MOVING SQUALL LINE ACROSS MIDDLE TN AND FAR NORTHEAST MS
INTO NORTHERN AL/FAR SOUTHEAST KY. TORNADO WATCH 84 CONTINUES...BUT
WILL LIKELY BE CANCELLED PRIOR TO 08Z. CONVECTIVE TRENDS ARE BEING
CLOSELY MONITORED FOR A POSSIBLE WATCH ISSUANCE TO THE EAST OF WW
84.

DISCUSSION...POTENTIALLY AIDED BY AN MCV...A SQUALL LINE CONTINUES
TO MAKE A STEADY EAST-NORTHEASTWARD PROGRESSION EARLY IN THE
OVERNIGHT ACROSS MIDDLE TN AND NORTHEAST MS INTO NORTHERN AL. CLOUD
TOPS HAVE GENERALLY SHOWN SOME SIGNS OF WARMING PER INFRARED
SATELLITE IMAGERY...WHILE PRE-SQUALL LINE SURFACE OBSERVATIONS
CONTINUE TO SHOW A STEADY COOLING WITH SURFACE TEMPERATURES IN THE
LOWER 60S F AS OF 05Z. WHILE MODEST/INCREASINGLY STABLE NEAR-SURFACE
INFLOW SHOULD LEAD TO DIMINISHING CONVECTIVE INTENSITY TREND OVER
THE NEXT COUPLE OF HOURS...THE EXISTING ORGANIZATION/FORWARD MOTION
OF THE LINE COULD YET ACCOUNT FOR SOME STRONG/NEAR-SEVERE CALIBER
WIND GUSTS OVERNIGHT.

..GUYER.. 04/20/2015

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

ATTN...WFO...LMK...OHX...BMX...HUN...PAH...MEG...JAN...

LAT...LON   36078750 36818707 36318515 34108677 31968947 34478827
            36078750



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