Tornado Watch 70

Issued

Apr 17, 2015, 6:57 PM CDT (23:57 UTC)

Expired

Apr 17, 2015, 11:59 PM CDT

In force

5 hr

Issued by

the Storm Prediction Center

Largest hail expected

2 in

Strongest gust expected

65 kt

The Corpus Christi radar (KCRP), 76 km from the middle of the area, began a volume at 23:55 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

30%

One or more EF2 to EF5 tornadoes

20%

Ten or more severe wind reports

50%

One or more gusts of 65 knots or more

30%

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

60%

• Mesoscale Discussion 339Apr 17, 3:22 PM CDT
• Mesoscale Discussion 342Apr 17, 5:41 PM CDT
• Mesoscale Discussion 349Apr 17, 9:10 PM CDT
• Mesoscale Discussion 350Apr 17, 10:59 PM CDT

170 
WWUS20 KWNS 172355
SEL0  
SPC WW 172355
TXZ000-CWZ000-180700-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 70
NWS STORM PREDICTION CENTER NORMAN OK
655 PM CDT FRI APR 17 2015

THE NWS STORM PREDICTION CENTER HAS ISSUED A

* TORNADO WATCH FOR PORTIONS OF 
  SOUTH TEXAS AND THE MIDDLE TEXAS COASTAL PLAIN
  COASTAL WATERS

* EFFECTIVE THIS FRIDAY NIGHT AND SATURDAY MORNING FROM 655 PM
  UNTIL 200 AM CDT.

* PRIMARY THREATS INCLUDE...
  A COUPLE TORNADOES POSSIBLE
  SCATTERED DAMAGING WINDS AND ISOLATED SIGNIFICANT GUSTS TO 75
    MPH POSSIBLE
  ISOLATED VERY LARGE HAIL EVENTS TO 2 INCHES IN DIAMETER POSSIBLE

SUMMARY...SCATTERED SEVERE THUNDERSTORMS EXPECTED TO PERSIST THROUGH
LATE TONIGHT ALONG A ROUGHLY WEST-EAST AXIS ACROSS PARTS OF SOUTH
TEXAS...POSING PERIODIC THREATS FOR LARGE HAIL...HIGH WIND...AND A
COUPLE TORNADOES.

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 50 STATUTE
MILES EITHER SIDE OF A LINE FROM 20 MILES WEST OF LAREDO TEXAS TO
40 MILES EAST OF PALACIOS TEXAS.  FOR A COMPLETE DEPICTION OF THE
WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU0).

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 67...WW 68...WW 69...

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 2 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 65 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
550. MEAN STORM MOTION VECTOR 26025.


...CORFIDI

Tornado 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.