SPC Particularly Dangerous Situation (PDS) Tornado/Severe Thunderstorm Watch
Posted by cypresstx on 4/14/2012, 1:25 pm
| the last time a PDS was issued was for the March 2nd tornado outbreak http://www.spc.noaa.gov/products/spcpdswwrss.xml SPC PDS Tornado Watch 166Saturday, April 14, 2012 12:00 PMWW 166 TORNADO NE 141700Z - 150000Z WW 0166 Thumbnail Image URGENT - IMMEDIATE BROADCAST REQUESTED TORNADO WATCH NUMBER 166 NWS STORM PREDICTION CENTER NORMAN OK 1200 PM CDT SAT APR 14 2012 THE NWS STORM PREDICTION CENTER HAS ISSUED A TORNADO WATCH FOR PORTIONS OF CENTRAL AND EASTERN NEBRASKA EFFECTIVE THIS SATURDAY AFTERNOON AND EVENING FROM NOON UNTIL 700 PM CDT. ...THIS IS A PARTICULARLY DANGEROUS SITUATION... DESTRUCTIVE TORNADOES...LARGE HAIL TO 4 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 75 STATUTE MILES NORTH AND SOUTH OF A LINE FROM 25 MILES SOUTH SOUTHWEST OF BROKEN BOW NEBRASKA TO 10 MILES SOUTH OF OMAHA NEBRASKA. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU6). 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. OTHER WATCH INFORMATION...CONTINUE...WW 165... DISCUSSION...A CLUSTER OF SEVERE THUNDERSTORMS OVER CENTRAL KS IS EXPECTED TO CONTINUE TO TRACK NORTHEASTWARD AND INTO CENTRAL/EASTERN NEB THIS AFTERNOON. MEANWHILE...STRONG LOW LEVEL WARM/MOIST ADVECTION AND A WEAK CAP MAY RESULT IN OTHER CONVECTIVE DEVELOPMENT ACROSS THE WATCH AREA DURING THE NEXT FEW HOURS. LOW LEVEL VERTICAL SHEAR IS VERY IMPRESSIVE THROUGH THE AFTERNOON/EVENING...SUGGESTING AND INCREASING RISK OF SURFACE-BASED SUPERCELLS CAPABLE OF STRONG TORNADOES AND VERY LARGE HAIL. AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT TO 4 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM MOTION VECTOR 25035. ...HART  |
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In this thread:
Interesting graphic by Accuweather - Fred, 4/14/2012, 11:17 am
- The weather in the Mid west was so bad.... - Shalista, 4/15/2012, 12:02 pm
- Re: Interesting graphic by Accuweather - TFG, 4/14/2012, 4:37 pm
- Jet Stream - Shalista, 4/14/2012, 2:44 pm
- Need rain Bad in SE!!! - Shalista, 4/14/2012, 2:41 pm
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