Particularly Dangerous Situation
Posted by JAC on 5/19/2010, 3:25 pm
 URGENT - IMMEDIATE BROADCAST REQUESTED TORNADO WATCH NUMBER 190 NWS STORM PREDICTION CENTER NORMAN OK 205 PM CDT WED MAY 19 2010 THE NWS STORM PREDICTION CENTER HAS ISSUED A TORNADO WATCH FOR PORTIONS OF MUCH OF OKLAHOMA EFFECTIVE THIS WEDNESDAY AFTERNOON AND EVENING FROM 205 PM UNTIL 1000 PM CDT. ...THIS IS A PARTICULARLY DANGEROUS SITUATION... DESTRUCTIVE TORNADOES...LARGE HAIL TO 3.5 INCHES IN DIAMETER... THUNDERSTORM WIND GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS. THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 55 STATUTE MILES NORTH AND SOUTH OF A LINE FROM 40 MILES SOUTH OF GAGE OKLAHOMA TO 40 MILES EAST SOUTHEAST OF MCALESTER OKLAHOMA. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU0). REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR TORNADOES AND 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. DISCUSSION...TSTMS EXPECTED TO FORM IN THE NEXT HOUR OR SO INVOF SLOWLY RETREATING W/E OUTFLOW BOUNDARY IN W CNTRL OK. OTHER STORMS ALSO MAY FORM A BIT LATER NEAR INTERSECTION OF OUTFLOW BOUNDARY WITH CONFLUENCE LINE IN CNTRL OK...AND IN MORE STRONGLY HEATED ENVIRONMENT NEAR WARM FRONT IN SE OK /REF MCD 623/. GIVEN STRENGTH OF WIND FIELD...EXPECTATION OF CONTINUED LOW LVL DESTABILIZATION...AND EVENTUAL ONSET OF MID LVL COOLING/ASCENT WITH UPR IMPULSE NOW IN THE WRN TX PANHANDLE...SETUP APPEARS FAVORABLE FOR THE DEVELOPMENT OF STRONG SUPERCELLS. ONE OR TWO OF THESE MAY BECOME LONG-LIVED...AND YIELD A COUPLE STRONG TORNADOES...AS THEY INTERACT WITH BACKED LOW LVL FLOW NEAR OUTFLOW BOUNDARY AND/OR WARM FRONT. AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT TO 3.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550. MEAN STORM MOTION VECTOR 26030. |
43
In this thread:
Significant Severe Weather for OKC area this evening and thru DFW area overnight - JAC, 5/19/2010, 6:37 am
- Watch Gravity Waves on West Quad Outflow Boundary from this Morning's MCS - JAC, 5/19/2010, 1:26 pm
- Expect Strong Tornadoes - JAC, 5/19/2010, 2:30 pm
- Detailed NWS Update - Convective Initiation west of OKC - JAC, 5/19/2010, 2:39 pm
- Re: Detailed NWS Update - Convective Initiation west of OKC - CypressTX, 5/19/2010, 2:44 pm
- Detailed NWS Update - Convective Initiation west of OKC - JAC, 5/19/2010, 2:39 pm
- Expect Strong Tornadoes - JAC, 5/19/2010, 2:30 pm
- Basically no cap. CAPE will hit around 4000 - JAC, 5/19/2010, 12:57 pm
- 800 W/m2 Surface Insolation south of the Cloud Cover - JAC, 5/19/2010, 1:03 pm
- SPC just bumped this up to High Risk (Major Severe Weather Outbreak) - JAC, 5/19/2010, 12:41 pm
- Impressive 00Z Sounding at Amarillo - JAC, 5/19/2010, 6:43 am
- Great looking Hodo at Oklahoma City at 1200Z - JAC, 5/19/2010, 12:46 pm
Post A Reply
This thread has been archived and can no longer receive replies.