PDS for AK; bowing MCS (Derecho winds to 105 mph)
Posted by JAC on 6/12/2009, 2:36 pm
 URGENT - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WATCH NUMBER 388 NWS STORM PREDICTION CENTER NORMAN OK 1135 AM CDT FRI JUN 12 2009 THE NWS STORM PREDICTION CENTER HAS ISSUED A SEVERE THUNDERSTORM WATCH FOR PORTIONS OF MUCH OF ARKANSAS PARTS OF NORTHERN MISSISSIPPI PARTS OF EASTERN OKLAHOMA PARTS OF WESTERN TENNESSEE EFFECTIVE THIS FRIDAY MORNING AND EVENING FROM 1135 AM UNTIL 700 PM CDT. ...THIS IS A PARTICULARLY DANGEROUS SITUATION... EXTREMELY DAMAGING THUNDERSTORM WIND GUSTS TO 105 MPH...LARGE HAIL TO 3 INCHES IN DIAMETER...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS. DISCUSSION...AN INTENSE BOW ECHO/DERECHO HAS DEVELOPED ACROSS NERN OK AND WILL CONTINUE RAPIDLY E/ESEWD ACROSS THE WATCH AREA THRU THE AFTERNOON. WITH A VERY UNSTABLE AIRMASS IN PLACE AND 40-50KT OF DEEP LAYER SHEAR...A SWATH OF DAMAGING WINDS...POSSIBLY VERY DAMAGING WILL TRACK EWD ACROSS THE WATCH AREA. IN ADDITION SEVERE STORMS EXPECTED TO DEVELOP WITH THE STRONG HEATING OF THE UNSTABLE AIR MASS AHEAD OF THE DERECHO WITH POTENTIAL FOR LARGE HAIL AS WELL AS WIND DAMAGE. |
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In this thread:
- Terry's Chase Report - JAC, 6/13/2009, 5:16 am
- Little Rock is going to get hammered - JAC, 6/12/2009, 3:22 pm
- Could get worse - moving into higher CAPE - JAC, 6/12/2009, 3:01 pm
- MD - JAC, 6/12/2009, 3:05 pm
- Re: Could get worse - moving into higher CAPE - JAC, 6/12/2009, 3:03 pm
- Sorry - AK is Alaska; this is Arkansas (AR) - JAC, 6/12/2009, 2:58 pm
- Hot Springs Under-the-Gun - JAC, 6/12/2009, 2:53 pm
- Confirmed touchdown Conway Co near Wonderview - JAC, 6/12/2009, 3:15 pm
- Little Rock Live & Local Weather - JAC, 6/12/2009, 2:49 pm
- Over 64 knots on base velocity - JAC, 6/12/2009, 2:41 pm
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