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

Saturday, September 18, 2010

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

SPC Severe Thunderstorm Watch 672
Sat, 18 Sep 2010 19:00:04 -0500

URGENT - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WATCH NUMBER 672 NWS STORM PREDICTION CENTER NORMAN OK 225 PM CDT SAT SEP 18 2010 THE NWS STORM PREDICTION CENTER HAS ISSUED A SEVERE THUNDERSTORM WATCH FOR PORTIONS OF EASTERN KANSAS NORTHERN AND CENTRAL MISSOURI EFFECTIVE THIS SATURDAY AFTERNOON AND EVENING FROM 225 PM UNTIL 1000 PM CDT. HAIL TO 2 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 55 STATUTE MILES NORTH AND SOUTH OF A LINE FROM 40 MILES NORTHWEST OF HUTCHINSON KANSAS TO 40 MILES NORTHEAST OF VICHY MISSOURI. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU2). 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. DISCUSSION...TSTMS ARE EXPECTED TO INCREASE IN COVERAGE AND INTENSITY THIS AFTERNOON ALONG SYNOPTIC COLD FRONT AND RESIDUAL OUTFLOW BOUNDARY WITHIN A MOIST AND MODERATE TO STRONGLY UNSTABLE AIR MASS WITH MLCAPE OF 2500-3500 J/KG. REGION WILL REMAIN TO THE S OF STRONGER MID AND HIGH-LEVEL WIND FIELD WITH GENERALLY 30-35 KT OF DEEP WLY SHEAR ACROSS NRN EXTENSION OF WARM SECTOR. AS SUCH...SETUP WILL BE SUPPORTIVE OF ORGANIZED MULTICELL AND EPISODIC SUPERCELL STRUCTURES WITH THE PRIMARY HAZARDS BEING HAIL AND DAMAGING WIND GUSTS. AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550. MEAN STORM MOTION VECTOR 29020. ...MEAD

SPC Severe Thunderstorm Watch 672 Status Reports
Sat, 18 Sep 2010 19:00:06 -0500

  STATUS REPORT ON WW 672  THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.  FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1861  ..GARNER..09/18/10  ATTN...WFO...ICT...TOP...EAX...SGF...LSX...   STATUS REPORT FOR WS 672   SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS   ILC001-009-149-190040-  IL  .    ILLINOIS COUNTIES INCLUDED ARE  ADAMS                BROWN               PIKE                   KSC001-003-005-011-015-017-027-031-041-043-045-053-059-061-073- 079-085-087-091-103-105-107-111-113-115-121-127-139-143-149-159- 161-169-177-197-207-209-190040-  KS  .    KANSAS COUNTIES INCLUDED ARE  ALLEN                ANDERSON            ATCHISON             BOURBON              BUTLER              CHASE                CLAY                 COFFEY              DICKINSON            DONIPHAN             DOUGLAS             ELLSWORTH            FRANKLIN             GEARY               GREENWOOD            HARVEY               JACKSON             JEFFERSON            JOHNSON              LEAVENWORTH         LINCOLN              LINN                 LYON                MCPHERSON            MARION               MIAMI               MORRIS

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