Tornado Watch 545

Issued

Nov 17, 2015, 8:55 AM CST (14:55 UTC)

Expired

Nov 17, 2015, 4:00 PM CST

In force

7 hr

Issued by

the Storm Prediction Center

Largest hail expected

1 in

Strongest gust expected

60 kt

The Ft Polk radar (KPOE), 128 km from the middle of the area, began a volume at 14:59 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

40%

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

5%

One or more hailstones of 2 inches or more

5%

Six or more combined severe hail and wind reports

60%

• Mesoscale Discussion 1965Nov 17, 8:24 AM CST
• Mesoscale Discussion 1966Nov 17, 9:59 AM CST
• Mesoscale Discussion 1968Nov 17, 12:19 PM CST
• Mesoscale Discussion 1970Nov 17, 2:51 PM CST

980 
WWUS20 KWNS 171448
SEL5  
SPC WW 171448
ARZ000-LAZ000-TXZ000-CWZ000-172200-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 545
NWS STORM PREDICTION CENTER NORMAN OK
850 AM CST TUE NOV 17 2015

THE NWS STORM PREDICTION CENTER HAS ISSUED A

* TORNADO WATCH FOR PORTIONS OF 
  SOUTHWEST ARKANSAS
  WESTERN AND CENTRAL LOUISIANA
  EASTERN AND SOUTHEAST TEXAS
  COASTAL WATERS

* EFFECTIVE THIS TUESDAY MORNING AND AFTERNOON FROM 850 AM UNTIL
  400 PM CST.

* PRIMARY THREATS INCLUDE...
  A COUPLE TORNADOES POSSIBLE
  ISOLATED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE

SUMMARY...THUNDERSTORMS SHOULD CONTINUE TO INTENSIFY THIS MORNING
INTO AFTERNOON AS ACTIVITY SPREADS FROM WEST TO EAST ACROSS THE
WATCH AREA.  THE STRONGEST STORMS WILL BE CAPABLE OF A FEW TORNADOES
AND LOCALLY DAMAGING WINDS.

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 70 STATUTE
MILES EAST AND WEST OF A LINE FROM 40 MILES WEST SOUTHWEST OF
PORT ARTHUR TEXAS TO 35 MILES NORTHWEST OF EL DORADO ARKANSAS. 
FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
OUTLINE UPDATE (WOUS64 KWNS WOU5).

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 543...WW 544...

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 1 INCH. EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500.
MEAN STORM MOTION VECTOR 21035.


...MEAD

Tornado Watches in Louisiana, 2015Tornado Watches in Texas, 2015Tornado Watches in Arkansas, 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.