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Mesoscale Discussion 1179 |
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MESOSCALE DISCUSSION 1179
NWS STORM PREDICTION CENTER NORMAN OK
0622 PM CDT THU JUN 25 2015
AREAS AFFECTED...NEB PANHANDLE...NERN CO...FAR NWRN KS
CONCERNING...SEVERE THUNDERSTORM WATCH 352...
VALID 252322Z - 260045Z
THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 352
CONTINUES.
SUMMARY...VERY LARGE HAIL AND ISOLATED SEVERE WIND ARE THE PRIMARY
NEAR-TERM HAZARDS...BUT A TORNADO OR TWO IS ALSO POSSIBLE WITH
SUPERCELLS PROGRESSING ALONG A REMNANT OUTFLOW BOUNDARY OVER THE NEB
PANHANDLE. WITH TIME...UPSCALE GROWTH SHOULD FOSTER A PREDOMINANT
WIND RISK TOWARDS THE NEB/CO/KS BORDER AREA.
DISCUSSION...A FEW SUPERCELLS HAVE FORMED OVER THE WRN NEB PANHANDLE
IN THE WAKE OF A LEAD SUPERCELL THAT DISSIPATED W OF LBF. WITH A
REMNANT OUTFLOW BOUNDARY EVIDENT FROM NEAR IML TO BFF...THIS RENEWED
DEVELOPMENT IS OCCURRING WITHIN A LOCALIZED ENVIRONMENT FAVORABLE
FOR A SHORT-TERM TORNADO RISK GIVEN LOWERED LCLS AND ENHANCED
LOW-LEVEL SRH. WITH TIME...TSTM AMALGAMATION SHOULD RENDER MORE
PROGRESSIVE COLD POOL DEVELOPMENT AND TEMPER THE VERY LARGE HAIL
RISK WHILE LEADING TO A MORE WIDESPREAD SEVERE WIND RISK. DOWNSTREAM
WW ISSUANCE INTO PARTS OF THE WFO GLD AREA SEEMS PROBABLE BY 01-02Z.
..GRAMS.. 06/25/2015
ATTN...WFO...GID...LBF...GLD...BOU...CYS...
LAT...LON 42130370 42690270 42700219 42400181 41880143 41380080
41100033 40790007 40529992 40189999 39890013 39580069
39440160 39420240 39970345 40790421 41090446 41620438
42130370
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