Severe Storm Outlook Narrative (AC)
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000
ACUS11 KWNS 260717
SWOMCD
SPC MCD 260717
ARZ000-TXZ000-OKZ000-260815-

MESOSCALE DISCUSSION 0149
NWS STORM PREDICTION CENTER NORMAN OK
0217 AM CDT THU MAR 26 2015

AREAS AFFECTED...SW/CNTRL AR...FAR SE OK/NE TX

CONCERNING...SEVERE THUNDERSTORM WATCH 8...

VALID 260717Z - 260815Z

THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 8 CONTINUES.

SUMMARY...ISOLATED SEVERE HAIL AND LOCALLY DAMAGING WINDS REMAIN
POSSIBLE THROUGH SCHEDULED WW EXPIRATION OF 08Z AND MAY LINGER
THROUGH ABOUT 10Z WHILE GRADUALLY DIMINISHING. EXTENSION OF WW IS
POSSIBLE.

DISCUSSION...STRONGEST CONVECTION WITHIN WW 8 WAS LOCATED OVER SCOTT
COUNTY BORDER IN AR AND  MCCURTAIN COUNTY IN OK. 07Z SURFACE
ANALYSIS SUGGESTS CONVECTIVE OUTFLOW IS JUST S OF KLIT/KHOT WHILE
TRAILING SWWD TO KPRX. DESPITE LIKELY BEING ROOTED BY ELEVATED
PARCELS...A PERSISTENT MID-LEVEL MESO HAD ACCOMPANIED THE SCOTT
COUNTY STORM...BUT HAS SINCE WEAKENED AFTER A RECENT ONE-INCH
DIAMETER HAIL REPORT AROUND 0645Z. THE MCCURTAIN COUNTY CLUSTER IS
LIKELY CLOSER TO SURFACE-BASED ON THE NERN CUSP OF A PLUME OF NEAR
60 DEG F SURFACE DEW POINTS ACROSS ERN TX. AS THIS ACTIVITY SHIFTS E
OVER A DRIER BOUNDARY LAYER AMIDST INCREASING SBCIN AND STRONGER
700-MB WINDS LIKELY DISPLACED N/NE...THE OVERALL SEVERE RISK SHOULD
BECOME INCREASINGLY MARGINAL THIS MORNING.

..GRAMS/CORFIDI.. 03/26/2015

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

ATTN...WFO...LZK...SHV...TSA...FWD...

LAT...LON   34429452 34889365 35059277 35079220 34779215 34259238
            33469377 33169457 32969546 33189604 33479597 33929559
            34429452



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