oldlogin Posted April 15, 2012 Share Posted April 15, 2012 BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE OMAHA/VALLEY NEBRASKA 230 PM CDT SUN APR 15 2012 THE NATIONAL WEATHER SERVICE IN OMAHA HAS ISSUED A * TORNADO WARNING FOR... KNOX COUNTY IN NORTHEASTERN NEBRASKA... * UNTIL 330 PM CDT * AT 227 PM CDT...DOPPLER RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING TORNADOS. THESE STORMS WERE LOCATED NEAR VERDIGRE...OR 31 MILES EAST OF ONEILL...AND MOVING NORTH AT 25 MPH. SPOTTERS REPORTED A VERY BRIEF TORNADO TOUCHDOWN 1 MILE SOUTH OF VERDIGRE AT 227 PM. * LOCATIONS IMPACTED INCLUDE... VERDIGRE...NIOBRARA...SANTEE AND VERDEL. Link to comment Share on other sites More sharing options...
ICEHOCEY77 Posted April 15, 2012 Share Posted April 15, 2012 Link to comment Share on other sites More sharing options...
Srain Posted April 15, 2012 Share Posted April 15, 2012 MESOSCALE DISCUSSION 0555 NWS STORM PREDICTION CENTER NORMAN OK 0629 PM CDT SUN APR 15 2012 AREAS AFFECTED...PORTIONS OF MIDDLE TEXAS COASTAL AREAS AND ADJACENT COASTAL PLAIN CONCERNING...SEVERE POTENTIAL...WATCH UNLIKELY VALID 152329Z - 160100Z THE NEED FOR A WATCH IS NOT CURRENTLY ANTICIPATED...BUT TRENDS WILL CONTINUE TO BE MONITORED FOR THE POSSIBILITY OF AN INCREASING SEVERE THREAT. LOCALLY ENHANCED CONVERGENCE ASSOCIATED WITH THE INTERSECTION OF AN INLAND ADVANCING SEA-BREEZE AND SOUTHEASTWARD ADVANCING WEAK COLD FRONT APPEARS TO HAVE BEEN THE INITIATING MECHANISM FOR ISOLATED INTENSE CONVECTIVE DEVELOPMENT TO THE SOUTHWEST OF VICTORIA. THIS IS BEING SUPPORTED BY FAIRLY LARGE CAPE OF 2000-3000+ J/KG...IN THE PRESENCE OF HIGH BOUNDARY LAYER MOISTURE AND STEEP MID-LEVEL LAPSE RATES. DEEP LAYER SHEAR BENEATH 30-50 KT SOUTHERLY 500 MB FLOW IS AT LEAST MARGINALLY SUFFICIENT FOR SUBSTANTIVE MID-LEVEL UPDRAFT ROTATION. AIDED BY A FOCUSED AREA OF ENHANCED LOWER/MID TROPOSPHERIC WARM ADVECTION...ACTIVITY MAY PERSIST AT LEAST ANOTHER SEVERAL HOURS. IT IS NOT CLEAR THAT A SUBSTANTIAL INCREASE IN COVERAGE WILL OCCUR...BUT THE RISK FOR LARGE HAIL COULD CONTINUE...ALONG WITH SOME POTENTIAL FOR AN ISOLATED TORNADO...PERHAPS EVENTUALLY A LOCALIZED STRONG DOWNBURST...MAINLY WEST/NORTHWEST OF CORPUS CHRISTI THROUGH 00-02Z. ..KERR.. 04/15/2012 ATTN...WFO...CRP... Link to comment Share on other sites More sharing options...
Srain Posted April 16, 2012 Share Posted April 16, 2012 Closer to SE TX... SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 801 PM CDT SUN APR 15 2012 TXZ235-160145- JACKSON TX- 801 PM CDT SUN APR 15 2012 ...SPECIAL WEATHER STATEMENT... AT 800 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR INEZ...MOVING EAST AT 30 MPH. PEA SIZED HAIL AND WIND GUSTS UP TO 35 MPH WILL BE POSSIBLE WITH THIS STORM. LOCATIONS IMPACTED INCLUDE... EDNA...GANADO AND LA WARD. Link to comment Share on other sites More sharing options...
Srain Posted April 16, 2012 Share Posted April 16, 2012 Link to comment Share on other sites More sharing options...
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