Tornado Watch 189

Issued

May 19, 2015, 1:32 PM CDT (18:32 UTC)

Expired

May 19, 2015, 9:00 PM CDT

In force

7 hr

Issued by

the Storm Prediction Center

Largest hail expected

1.5 in

Strongest gust expected

60 kt

The Altus AFB radar (KFDR), 19 km from the middle of the area, began a volume at 18:35 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

10%

Six or more combined severe hail and wind reports

60%

• Mesoscale Discussion 697May 19, 1:02 PM CDT
• Mesoscale Discussion 700May 19, 3:51 PM CDT
• Mesoscale Discussion 701May 19, 5:31 PM CDT
• Mesoscale Discussion 703May 19, 7:15 PM CDT

752 
WWUS20 KWNS 191830
SEL9  
SPC WW 191830
OKZ000-TXZ000-200200-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 189
NWS STORM PREDICTION CENTER NORMAN OK
135 PM CDT TUE MAY 19 2015

THE NWS STORM PREDICTION CENTER HAS ISSUED A

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

* EFFECTIVE THIS TUESDAY AFTERNOON AND EVENING FROM 135 PM UNTIL
  900 PM CDT.

* PRIMARY THREATS INCLUDE...
  A FEW TORNADOES POSSIBLE
  ISOLATED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE
  ISOLATED LARGE HAIL EVENTS TO 1.5 INCHES IN DIAMETER POSSIBLE

SUMMARY...SCATTERED THUNDERSTORM DEVELOPMENT WILL CONTINUE THROUGH
THE AFTERNOON IN A MOIST ENVIRONMENT ACROSS NW TX AND SW/S CENTRAL
OK.  ALONG A IMMEDIATELY S OF A SURFACE FRONT...ROTATING STORMS WILL
BE POSSIBLE WITH THE RISK FOR A FEW TORNADOES...AS WELL AS ISOLATED
LARGE HAIL/DAMAGING WINDS.

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 55 STATUTE
MILES NORTH AND SOUTH OF A LINE FROM 50 MILES SOUTHWEST OF ALTUS
OKLAHOMA TO 80 MILES EAST SOUTHEAST OF FORT SILL OKLAHOMA.  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.

&&

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
500. MEAN STORM MOTION VECTOR 25025.


...THOMPSON

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.