Tornado Watch 137

Issued

May 6, 2015, 8:51 PM CDT (01:51 UTC)

Expired

May 7, 2015, 1:31 AM CDT

In force

5 hr

Issued by

the Storm Prediction Center

Largest hail expected

2 in

Strongest gust expected

60 kt

The Altus AFB radar (KFDR), 58 km from the middle of the area, began a volume at 01:53 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

20%

Ten or more severe wind reports

30%

One or more gusts of 65 knots or more

10%

Ten or more severe hail reports

30%

One or more hailstones of 2 inches or more

30%

Six or more combined severe hail and wind reports

70%

• Mesoscale Discussion 521May 6, 5:25 PM CDT
• Mesoscale Discussion 525May 6, 6:34 PM CDT
• Mesoscale Discussion 527May 6, 8:08 PM CDT
• Mesoscale Discussion 529May 6, 10:53 PM CDT

357 
WWUS20 KWNS 070148
SEL7  
SPC WW 070148
OKZ000-TXZ000-070700-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 137
NWS STORM PREDICTION CENTER NORMAN OK
850 PM CDT WED MAY 6 2015

THE NWS STORM PREDICTION CENTER HAS ISSUED A

* TORNADO WATCH FOR PORTIONS OF 
  SOUTHWEST AND CENTRAL OKLAHOMA
  NORTHWEST TEXAS

* EFFECTIVE THIS WEDNESDAY NIGHT AND THURSDAY MORNING FROM 850 PM
  UNTIL 200 AM CDT.

* PRIMARY THREATS INCLUDE...
  A FEW TORNADOES POSSIBLE
  ISOLATED VERY LARGE HAIL EVENTS TO 2 INCHES IN DIAMETER POSSIBLE
  ISOLATED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE

SUMMARY...MULTIPLE SUPERCELL CLUSTERS ARE EXPECTED TO PERSIST INTO
THE OVERNIGHT HOURS WITH A CONTINUED RISK FOR A FEW
TORNADOES...LARGE HAIL AND DAMAGING STRAIGHT LINE WINDS.

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 65 STATUTE
MILES EAST AND WEST OF A LINE FROM 75 MILES SOUTH SOUTHWEST OF
WICHITA FALLS TEXAS TO 20 MILES NORTH NORTHEAST OF PONCA CITY
OKLAHOMA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU7).

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 133...WW 134...WW
135...WW 136...

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
550. MEAN STORM MOTION VECTOR 24020.


...MEAD

Tornado Watches in Oklahoma, 2015Tornado Watches in Texas, 2015Every tornado watch in 2015

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.