SPC Severe Thunderstorm Watch 696
Thu, 07 Oct 2010 19:00:03 -0500
URGENT - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WATCH NUMBER 696 NWS STORM PREDICTION CENTER NORMAN OK 155 PM MDT THU OCT 7 2010 THE NWS STORM PREDICTION CENTER HAS ISSUED A SEVERE THUNDERSTORM WATCH FOR PORTIONS OF LARGE PART OF WESTERN COLORADO LARGE PART OF EASTERN UTAH SMALL PART OF SOUTHERN WYOMING EFFECTIVE THIS THURSDAY AFTERNOON AND EVENING FROM 155 PM UNTIL 800 PM MDT. 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 105 STATUTE MILES EAST AND WEST OF A LINE FROM 45 MILES SOUTH SOUTHEAST OF BULLFROG MARINA UTAH TO 35 MILES NORTHWEST OF RAWLINS WYOMING. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU6). 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...A VIGOROUS S/WV TROUGH AND UPPER JET STREAK MOVING NEWD INTO UT ATTM WHERE AIR MASS IS DESTABILIZING. STEEP LAPSE RATES COUPLED WITH 50-60KT OF DEEP LAYER SHEAR AND MLCAPES TO AOA 500 J/KG WILL BE SUFFICIENT FOR STORMS DEVELOPING INTO LINE SEGMENTS WITH ASSOCIATED DAMAGING WIND THREAT AT AS THEY MOVE RAPIDLY NEWD. PARAMETERS ALSO FAVOR POTENTIAL FOR ISOLATED SUPERCELLS WHICH WOULD ENHANCE BOTH THE HAIL AND WIND THREAT. 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 450. MEAN STORM MOTION VECTOR 23035. ...HALESRead more
SPC Severe Thunderstorm Watch 696 Status Reports
Thu, 07 Oct 2010 19:00:05 -0500
STATUS REPORT ON WW 696 THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA. ..ROGERS..10/07/10 ATTN...WFO...GJT...SLC...CYS...RIW... STATUS REPORT FOR WS 696 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS COC029-033-045-067-077-081-083-085-103-107-113-080040- CO . COLORADO COUNTIES INCLUDED ARE DELTA DOLORES GARFIELD LA PLATA MESA MOFFAT MONTEZUMA MONTROSE RIO BLANCO ROUTT SAN MIGUEL UTC007-009-013-015-017-019-025-031-037-039-041-047-055-080040- UT . UTAH COUNTIES INCLUDED ARE CARBON DAGGETT DUCHESNE EMERY GARFIELD GRAND KANE PIUTE SAN JUAN SANPETE SEVIER UINTAH WAYNE WYC007-037-080040- WYRead more
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