Tornado Watch 74

Issued

Mar 12, 2006, 12:46 PM CST (18:46 UTC)

Expired

Mar 12, 2006, 9:35 PM CST

In force

9 hr

Issued by

the Storm Prediction Center

The Tulsa radar (KINX), 66 km from the middle of the area, began a volume at 18:47 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

• Mesoscale Discussion 256Mar 12, 11:29 AM CST
• Mesoscale Discussion 262Mar 12, 3:38 PM CST
• Mesoscale Discussion 266Mar 12, 6:21 PM CST
• Mesoscale Discussion 271Mar 12, 9:13 PM CST

000 
WWUS20 KWNS 121849
SEL4  
SPC WW 121849
ARZ000-MOZ000-OKZ000-130400-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 74
NWS STORM PREDICTION CENTER NORMAN OK
1245 PM CST SUN MAR 12 2006

THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF 

       NORTHERN ARKANSAS
       SOUTHERN MISSOURI
       PARTS OF CENTRAL AND EASTERN OKLAHOMA

EFFECTIVE THIS SUNDAY AFTERNOON AND EVENING FROM 1245 PM UNTIL
1000 PM CST.

...THIS IS A PARTICULARLY DANGEROUS SITUATION...

DESTRUCTIVE TORNADOES...LARGE HAIL TO 4 INCHES IN DIAMETER...
THUNDERSTORM WIND GUSTS TO 80 MPH...AND DANGEROUS LIGHTNING ARE
POSSIBLE IN THESE AREAS.

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 65 STATUTE MILES
NORTH AND SOUTH OF A LINE FROM 30 MILES WEST NORTHWEST OF CHANDLER
OKLAHOMA TO 45 MILES NORTHEAST OF BATESVILLE ARKANSAS. FOR A
COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE
UPDATE (WOUS64 KWNS WOU4).

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 73...

DISCUSSION...SEVERE THUNDERSTORMS EXPECTED TO DEVELOP RAPIDLY ALONG
DRY LINE CURRENTLY N/S THRU CENTRAL OK.  VERY STRONG DEEP LAYER
SHEAR...STEEP LAPSE RATES AND MLCAPES ABOVE 2000 J/KG  SUPPORT
TORNADIC SUPERCELLS. IN ADDITION TO VERY LARGE HAIL... STRONG TO
VIOLENT TORNADOES ARE POSSIBLE LATER THIS AFTERNOON AND EVENING. 
STORMS WILL MOVE RAPIDLY EWD ACROSS OK INTO NORTHWEST AR BY LATE
AFTERNOON.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 4 INCHES. EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550.
MEAN STORM MOTION VECTOR 24040.


...HALES

Tornado Watches in Oklahoma, 2006Tornado Watches in Arkansas, 2006Tornado Watches in Missouri, 2006Every tornado watch in 2006

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.