Compact News: NOAA's National Weather Service SPC Tornado/Severe Thunderstorm Watches Update

Thursday, September 16, 2010

NOAA's National Weather Service SPC Tornado/Severe Thunderstorm Watches Update

SPC Severe Thunderstorm Watch 669
Thu, 16 Sep 2010 16:05:03 -0500

URGENT - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WATCH NUMBER 669 NWS STORM PREDICTION CENTER NORMAN OK 505 PM EDT THU SEP 16 2010 THE NWS STORM PREDICTION CENTER HAS ISSUED A SEVERE THUNDERSTORM WATCH FOR PORTIONS OF SOUTHEAST OHIO FAR NORTHWEST WEST VIRGINIA EFFECTIVE THIS THURSDAY AFTERNOON AND EVENING FROM 505 PM UNTIL 900 PM EDT. HAIL TO 1.5 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS. THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 35 STATUTE MILES EITHER SIDE OF A LINE FROM 30 MILES NORTH NORTHWEST OF WHEELING WEST VIRGINIA TO 15 MILES SOUTHEAST OF ATHENS OHIO. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU9). REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES. OTHER WATCH INFORMATION...CONTINUE...WW 668... DISCUSSION...SEVERE TSTMS /INCLUDING SUPERCELLS/ ONGOING OVER CNTRL OH ARE EXPECTED TO MOVE/DEVELOP EWD INTO ERN OH THIS EVENING. A NARROW THERMAL/MOISTURE AXIS IS BEING MAINTAINED AHEAD OF THESE STORMS...AND GIVEN THE STRENGTHENING VERTICAL SHEAR /BASED ON ILN VWP/...ENVIRONMENT WILL REMAIN SUPPORTIVE OF ORGANIZED STORM MODES WITH THE THREAT FOR MAINLY HAIL AND DAMAGING WINDS. STORMS SHOULD TEND TO WEAKEN LATER THIS EVENING AS STORMS EVENTUALLY MOVE E OF THE INSTABILITY AXIS. AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM MOTION VECTOR 28035. ...MEAD

SPC Severe Thunderstorm Watch 669 Status Reports
Thu, 16 Sep 2010 16:05:11 -0500

  STATUS FOR WATCH 0669 HAS NOT BEEN ISSUED YET

SPC Severe Thunderstorm Watch 668 Status Reports
Thu, 16 Sep 2010 15:32:03 -0500

  STATUS REPORT ON WW 668  SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 45 WNW LUK TO 10 ENE FDY TO 20 ENE MTC.  FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1848.  ..KERR..09/16/10  ATTN...WFO...DTX...CLE...ILN...   STATUS REPORT FOR WS 668   SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS   OHC005-011-021-023-033-035-037-041-043-045-047-049-057-063-065- 073-075-077-083-089-091-093-095-097-101-103-107-109-113-117-123- 129-135-139-143-147-149-153-159-169-173-175-162140-  OH  .    OHIO COUNTIES INCLUDED ARE  ASHLAND              AUGLAIZE            CHAMPAIGN            CLARK                CRAWFORD            CUYAHOGA             DARKE                DELAWARE            ERIE                 FAIRFIELD            FAYETTE             FRANKLIN             GREENE               HANCOCK             HARDIN               HOCKING              HOLMES              HURON                KNOX                 LICKING             LOGAN                LORAIN               LUCAS               MADISON              MARION               MEDINA              MERCER               MIAMI                MONTGOMERY          MORROW               OTTAWA               PICKAWAY            PREBLE               RICHLAND             SANDUSKY            SENECA               SHELBY               SUMMIT              UNION                WAYNE                WOOD                WYANDOT

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