Alert archive / Arkansas / Wind Advisories in 2012

Wind Advisory 16, NWS Tulsa, OK

December 20, 2012Adair County, Oklahoma; 4 counties in Arkansas

NWS Tulsa, OK issued this wind advisory at Dec 20, 2012, 1:09 PM CST for Adair County, Oklahoma; 4 counties in Arkansas. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued
Dec 20, 2012, 1:09 PM CST (19:09 UTC)
Expired
Dec 20, 2012, 5:00 PM CST
In force
4 hr
Issued by
NWS Tulsa, OK

Counties Benton County, AR, Carroll County, AR, Madison County, AR, Washington County, AR, Adair County, OK

The radar

The Western Arkansas radar (KSRX), 95 km from the middle of the area, began a volume at 19:09 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.

The nearest sounding before it

Lamont, OK (KLMN), launched 12:00Z, 7.2 hours before the alert went out and 310 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Lamont, OK at 12:00Z on 2012-12-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Lamont, OK at 12:00Z on 2012-12-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -48 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
715 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
-48 m²/s²
0-3 km storm-relative helicity
28 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

274 
WWUS74 KTSA 201909
NPWTSA

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE TULSA OK
109 PM CST THU DEC 20 2012

ARZ001-002-010-011-019-020-029-OKZ069-072-076-202300-
/O.NEW.KTSA.WI.Y.0016.121220T1909Z-121220T2300Z/
BENTON-CARROLL-WASHINGTON AR-MADISON-CRAWFORD-FRANKLIN-SEBASTIAN-
ADAIR-SEQUOYAH-LE FLORE-
109 PM CST THU DEC 20 2012

...WIND ADVISORY IN EFFECT UNTIL 5 PM CST THIS AFTERNOON...

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A WIND ADVISORY...
WHICH IS IN EFFECT UNTIL 5 PM CST THIS AFTERNOON...

FOR THE FOLLOWING COUNTIES...

 * IN OKLAHOMA...ADAIR...SEQUOYAH AND LE FLORE. 

   IN ARKANSAS...BENTON...SEBASTIAN...WASHINGTON...CARROLL...
   MADISON...CRAWFORD AND FRANKLIN. 

HAZARDOUS WEATHER...
 * STRONG WINDS ARE MIXING DOWN FROM ALOFT TO PRODUCE WIND GUSTS
   IN EXCESS OF 40 MPH AT THE SURFACE OVER NORTHWEST ARKANSAS AND
   EXTREME EASTERN OKLAHOMA. 

IMPACTS...
 * WIND GUST VALUES IN THE 40 TO 45 MPH RANGE.

 * WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR 
   HIGH PROFILE VEHICLES.

DEFINITION...
 * A WIND ADVISORY MEANS THAT WIND GUSTS OF 40 MPH ARE EXPECTED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...
 * MOTORISTS SHOULD EXERCISE CAUTION WHILE DRIVING. BE ALERT TO 
   SUDDEN GUSTS OF WIND WHICH MAY CAUSE YOU TO LOSE CONTROL OF YOUR 
   VEHICLE. EXTRA ATTENTION SHOULD BE GIVEN TO CROSS WINDS AND ON 
   BRIDGES AND OVERPASSES. 

 * STAY TUNED TO NOAA WEATHER RADIO...COMMERCIAL RADIO OR TELEVISION
   FOR THE LATEST INFORMATION CONCERNING THIS WEATHER EVENT.
   ADDITIONAL WEATHER INFORMATION CAN ALSO BE FOUND AT:
   WEATHER.GOV/TULSA.

&&

$$
1 follow-up statement
131 
WWUS74 KTSA 202300
NPWTSA

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE TULSA OK
500 PM CST THU DEC 20 2012

ARZ001-002-010-011-019-020-029-OKZ069-072-076-210000-
/O.EXP.KTSA.WI.Y.0016.000000T0000Z-121220T2300Z/
BENTON-CARROLL-WASHINGTON AR-MADISON-CRAWFORD-FRANKLIN-SEBASTIAN-
ADAIR-SEQUOYAH-LE FLORE-
500 PM CST THU DEC 20 2012

...WIND ADVISORY WILL EXPIRE AT 5 PM CST THIS AFTERNOON...

THE WIND ADVISORY WILL EXPIRE AT 5 PM CST THIS AFTERNOON...

FOR THE FOLLOWING COUNTIES...

 * IN OKLAHOMA...ADAIR...SEQUOYAH AND LE FLORE. 

   IN ARKANSAS...BENTON...SEBASTIAN...WASHINGTON...CARROLL...
   MADISON...CRAWFORD AND FRANKLIN. 

 * THE STRONG WINDS HAVE DECREASED LATE THIS AFTERNOON...AND WILL
   CONTINUE TO WEAKEN AFTER SUNSET.

&&

$$

The office that day

Everything else NWS Tulsa, OK issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Dec 19, 7:28 PM CSTSpecial Weather StatementTSAPittsburg32 min
Dec 19, 7:46 PM CSTSevere Thunderstorm WarningTSAPittsburg44 min
Dec 19, 8:15 PM CSTSpecial Weather StatementTSALatimer45 min
Dec 19, 8:20 PM CSTSevere Thunderstorm WarningTSAHaskell, Muskogee, Pittsburg, Sequoyah40 min
Dec 19, 8:45 PM CSTSevere Thunderstorm WarningTSAHaskell, Sequoyah45 min
Dec 19, 8:50 PM CSTSpecial Weather StatementTSALatimer, LeFlore, Pushmataha55 min
Dec 19, 8:54 PM CSTSevere Thunderstorm WarningTSAHaskell, LeFlore, Sequoyah36 min
Dec 19, 9:11 PM CSTSevere Thunderstorm WarningTSALeFlore34 min
Dec 19, 9:23 PM CSTSpecial Weather StatementTSAChoctaw67 min
Dec 19, 9:34 PM CSTSpecial Weather StatementTSALeFlore56 min
Dec 19, 9:17 PM CSTSpecial Weather StatementTSACrawford28 min
Dec 19, 9:21 PM CSTSpecial Weather StatementTSACrawford24 min
Dec 19, 9:42 PM CSTSevere Thunderstorm WarningTSACrawford, Franklin, Madison, Sebastian63 min
Dec 19, 9:48 PM CSTTornado WarningTSACrawford, Franklin, Sebastian11 min
Dec 19, 10:20 PM CSTSpecial Weather StatementTSACarroll, Madison40 min

Nearby

Wind Advisories in Arkansas, 2012Wind Advisories in Oklahoma, 2012Every wind advisory in 2012

Sources

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.