Tornado Watch 87

Issued

Mar 2, 2008, 8:23 PM CST (02:23 UTC)

Expired

Mar 3, 2008, 4:00 AM CST

In force

8 hr

Issued by

the Storm Prediction Center

Largest hail expected

2 in

Strongest gust expected

60 kt

The Western Arkansas radar (KSRX), 124 km from the middle of the area, began a volume at 02:25 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.

Two or more tornadoes

50%

One or more EF2 to EF5 tornadoes

40%

Ten or more severe wind reports

40%

One or more gusts of 65 knots or more

30%

Ten or more severe hail reports

60%

One or more hailstones of 2 inches or more

30%

Six or more combined severe hail and wind reports

90%

• Mesoscale Discussion 319Mar 2, 5:26 PM CST
• Mesoscale Discussion 323Mar 2, 8:01 PM CST
• Mesoscale Discussion 326Mar 3, 1:36 AM CST
• Mesoscale Discussion 327Mar 3, 3:01 AM CST

000
WWUS20 KWNS 030222
SEL7  
SPC WW 030222
ARZ000-OKZ000-TXZ000-031000-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 87
NWS STORM PREDICTION CENTER NORMAN OK
825 PM CST SUN MAR 2 2008

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

       WESTERN ARKANSAS
       EASTERN OKLAHOMA
       NORTHEAST TEXAS

EFFECTIVE THIS SUNDAY NIGHT AND MONDAY MORNING FROM 825 PM UNTIL
400 AM CST.

TORNADOES...HAIL TO 2 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 65 STATUTE
MILES EAST AND WEST OF A LINE FROM 25 MILES EAST NORTHEAST OF
MUSKOGEE OKLAHOMA TO 65 MILES SOUTH OF PARIS TEXAS.  FOR A
COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE
UPDATE (WOUS64 KWNS WOU7).

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 84...WW 85...WW 86...

DISCUSSION...LOW LEVEL WAA CONTINUES TO INCREASE THUNDERSTORMS INTO
ERN OK AHEAD OF STRONG SYSTEM NOW SPREADING ACROSS THE SRN HIGH
PLAINS.  VERY STRONG LOW AND DEEP LAYER SHEAR WILL REMAIN SUPPORTIVE
OF SUPERCELLS AND POSSIBLE TORNADOES WITH DISCRETE DEVELOPMENT
OVERNIGHT...WITH WEAK OR NO CAPPING TO BOUNDARY LAYER PARCELS.

AVIATION...TORNADOES AND 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
500. MEAN STORM MOTION VECTOR 23035.


...EVANS

Tornado Watches in Oklahoma, 2008Tornado Watches in Arkansas, 2008Tornado Watches in Texas, 2008Every tornado watch in 2008

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.