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robt

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Posts posted by robt

  1. New Tornado Watch issued.. 

     

    http://www.spc.noaa.gov/products/md/md0666.html

     

    MESOSCALE DISCUSSION 0666
    NWS STORM PREDICTION CENTER NORMAN OK
    0341 PM CDT SAT MAY 16 2015

    AREAS AFFECTED...CNTRL/ERN TX/OK PANHANDLES...FAR NW AND N
    TX...WRN/CNTRL OK

    CONCERNING...TORNADO WATCH 175...

    VALID 162041Z - 162215Z

    THE SEVERE WEATHER THREAT FOR TORNADO WATCH 175 CONTINUES.

    SUMMARY...A BROKEN LINE OF INTENSE TSTMS IS PROGRESSING NEWD ACROSS
    THE ERN TX PANHANDLE AND NW TX. THE DOWNSHEAR ENVIRONMENT ACROSS OK
    IS BECOMING INCREASINGLY FAVORABLE FOR TORNADO POTENTIAL /POSSIBLY
    STRONG/. A NEW TORNADO WILL BE ISSUED SOON FOR WRN/CNTRL OK AND
    POSSIBLY PARTS OF NORTH TX.

    DISCUSSION...A BROKEN LINE OF INTENSE TSTMS WITH A FEW EMBEDDED
    SUPERCELLS CONTINUES TO MOVE NEWD ACROSS THE ERN TX PANHANDLE AND
    THE ROLLING PLAINS OF NWRN TX...WITH REPORTS RECEIVED RECENTLY OF
    LARGE HAIL AND A COUPLE TORNADOES. ADDITIONAL TSTMS ARE DEVELOPING
    FARTHER W WITHIN TORNADO WATCH 175...BUT WITH VEERED LOW-LEVEL WINDS
    AND A DRIER BOUNDARY-LAYER...LARGE HAIL AND DMGG WINDS WILL BE THE
    PRIMARY THREATS.

    THE ENVIRONMENT ACROSS WRN/CNTRL OK IS ONLY MARGINALLY TO MODERATELY
    UNSTABLE /PER 18Z OUN AND LMN SOUNDINGS/...AND STILL CAPPED WITH A
    WARM LAYER NOTED NEAR 1.5 KM AGL. EXTENSIVE CLOUD COVER HAS ALSO
    LIMITED DIABATIC HEATING ACROSS CNTRL OK...WITH TEMPERATURES
    REMAINING IN THE LOW-MID 70S. DESPITE THESE POTENTIAL LIMITING
    FACTORS...LOW-LEVEL SHEAR WILL CONTINUE TO INCREASE INTO THE
    EVENING...AND WILL FAVOR THE RISK FOR TORNADOES /SOME POTENTIALLY
    STRONG/ ACCOMPANYING DISCRETE SUPERCELLS ACROSS WRN/CNTRL OK AND
    POSSIBLY INTO PORTIONS OF N TX. AS A RESULT...A NEW TORNADO WATCH
    WILL BE ISSUED SOON.

    ..ROGERS/DIAL.. 05/16/2015

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