Tornado Watch 109

Issued

Apr 26, 2016, 2:32 PM CDT (19:32 UTC)

Expired

Apr 27, 2016, 12:00 AM CDT

In force

9 hr

Issued by

the Storm Prediction Center

Particularly dangerous situation

Yes

Largest hail expected

4 in

Strongest gust expected

70 kt

The Altus AFB radar (KFDR), 84 km from the middle of the area, began a volume at 19:31 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

90%

One or more EF2 to EF5 tornadoes

80%

Ten or more severe wind reports

90%

One or more gusts of 65 knots or more

40%

Ten or more severe hail reports

95%

One or more hailstones of 2 inches or more

95%

Six or more combined severe hail and wind reports

95%

• Mesoscale Discussion 456Apr 26, 1:35 PM CDT
• Mesoscale Discussion 457Apr 26, 1:53 PM CDT
• Mesoscale Discussion 459Apr 26, 3:40 PM CDT
• Mesoscale Discussion 461Apr 26, 5:13 PM CDT
• Mesoscale Discussion 463Apr 26, 5:55 PM CDT
• Mesoscale Discussion 468Apr 26, 8:52 PM CDT
• Mesoscale Discussion 469Apr 26, 9:36 PM CDT

428 
WWUS20 KWNS 261930
SEL9  
SPC WW 261930
OKZ000-TXZ000-270500-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 109
NWS STORM PREDICTION CENTER NORMAN OK
230 PM CDT TUE APR 26 2016

THE NWS STORM PREDICTION CENTER HAS ISSUED A

* TORNADO WATCH FOR PORTIONS OF 
  SOUTHWEST AND SOUTH CENTRAL THROUGH NORTH CENTRAL AND NORTHEAST
OKLAHOMA
  WEST CENTRAL THROUGH NORTH CENTRAL TEXAS

* EFFECTIVE THIS TUESDAY AFTERNOON FROM 230 PM UNTIL MIDNIGHT
  CDT.

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

* PRIMARY THREATS INCLUDE...
  SEVERAL TORNADOES AND A FEW INTENSE TORNADOES LIKELY
  WIDESPREAD LARGE HAIL AND SCATTERED VERY LARGE HAIL EVENTS TO 4
    INCHES IN DIAMETER EXPECTED
  WIDESPREAD DAMAGING WINDS LIKELY WITH ISOLATED SIGNIFICANT GUSTS
    TO 80 MPH POSSIBLE

SUMMARY...NUMEROUS SEVERE THUNDERSTORMS EXPECTED TO RAPIDLY FORM IN
THE NEXT COUPLE HOURS OVER WESTERN PART OF WATCH...INCLUDING A FEW
STRONG SUPERCELLS CAPABLE OF VERY LARGE HAIL...DAMAGING WIND...AND
TORNADOES. THE STORMS SHOULD MERGE INTO BROKEN LINES AND
CLUSTERS...WITH EMBEDDED SUPERCELLS CONTINUING TO POSE A RISK FOR
VERY LARGE HAIL...DAMAGING WIND.. AND A FEW TORNADOES AS THEY
MOVE/DEVELOP EAST-NORTHEAST INTO TONIGHT.

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 90 STATUTE
MILES EAST AND WEST OF A LINE FROM 20 MILES NORTH NORTHEAST OF
PONCA CITY OKLAHOMA TO 35 MILES SOUTH SOUTHWEST OF BROWNWOOD
TEXAS.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED
WATCH OUTLINE UPDATE (WOUS64 KWNS WOU9).

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 106...WW 107...WW 108...

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
600. MEAN STORM MOTION VECTOR 23040.


...CORFIDI

Tornado Watches in Oklahoma, 2016Tornado Watches in Texas, 2016Every tornado watch in 2016

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.