Alert archive / Arkansas / Wind Advisories in 2012
Wind Advisory 1, NWS Shreveport, LA
NWS Shreveport, LA issued this wind advisory at Dec 20, 2012, 10:39 AM CST for 9 counties in Arkansas; 7 parishes in Louisiana; Bowie County, Texas. It was in force for 5 hr.
The area
The counties it named.
The facts
- Issued
- Dec 20, 2012, 10:39 AM CST (16:39 UTC)
- Expired
- Dec 20, 2012, 3:47 PM CST
- In force
- 5 hr
- Issued by
- NWS Shreveport, LA
Counties Columbia County, AR, Hempstead County, AR, Howard County, AR, Lafayette County, AR, Little River County, AR, Miller County, AR, Nevada County, AR, Sevier County, AR, Union County, AR, Bienville Parish, LA, Claiborne Parish, LA, Jackson Parish, LA, Lincoln Parish, LA, Ouachita Parish, LA, Union Parish, LA, Webster Parish, LA, Bowie County, TX
The radar
The Shreveport radar (KSHV), 93 km from the middle of the area, began a volume at 16:41 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
Shreveport, LA (KSHV), launched 12:00Z, 4.7 hours before the alert went out and 86 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1424 m above ground
- 0-6 km bulk shear
- 89 kt
- 0-1 km storm-relative helicity
- -345 m²/s²
- 0-3 km storm-relative helicity
- -137 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
549 WWUS74 KSHV 201639 NPWSHV URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE SHREVEPORT LA 1039 AM CST THU DEC 20 2012 ...VERY WINDY CONDITIONS EXPECTED ACROSS THE REGION TODAY... ARZ050-051-059>061-070>073-LAZ003>006-012>014-TXZ097-210000- /O.CAN.KSHV.LW.Y.0042.000000T0000Z-121221T0000Z/ /O.NEW.KSHV.WI.Y.0001.121220T1639Z-121221T0000Z/ SEVIER-HOWARD-LITTLE RIVER-HEMPSTEAD-NEVADA-MILLER-LAFAYETTE- COLUMBIA-UNION AR-WEBSTER-CLAIBORNE-LINCOLN-UNION LA-BIENVILLE- JACKSON-OUACHITA-BOWIE- INCLUDING THE CITIES OF...DE QUEEN...NASHVILLE...ASHDOWN...HOPE... PRESCOTT...TEXARKANA...LEWISVILLE...MAGNOLIA...EL DORADO... MINDEN...HOMER...RUSTON...FARMERVILLE...BIENVILLE...JONESBORO... MONROE 1039 AM CST THU DEC 20 2012 ...WIND ADVISORY IN EFFECT UNTIL 6 PM CST THIS EVENING... ...LAKE WIND ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A WIND ADVISORY...WHICH IS IN EFFECT UNTIL 6 PM CST THIS EVENING. THE LAKE WIND ADVISORY HAS BEEN CANCELLED. * EVENT...A STRONG POST FRONTAL PRESSURE GRADIENT WILL YIELD NORTHWEST WINDS OF 25 TO 35 MPH WITH GUSTS AS HIGH AS 40 MPH ACROSS SOUTHWEST ARKANSAS AND NORTH CENTRAL LOUISIANA. * TIMING...WINDY CONDITIONS WILL CONTINUE THROUGH THE LATE AFTERNOON TODAY. * IMPACT...BOATERS SHOULD USE CAUTION IN OPEN WATERS ON AREA LAKES. DRIVING CONDITIONS MAY BE DIFFICULT FOR THOSE IN HIGHER PROFILE VEHICLES...ESPECIALLY ALONG OPEN ROADWAYS WHERE THERE IS LITTLE VEGETATION TO BLOCK THE WIND. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY MEANS THAT WINDS UP TO 40 MPH ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION. && $$ LAZ001-002-010-011-017>022-OKZ077-TXZ096-108>112-124>126-136>138- 149>153-165>167-210000- /O.CON.KSHV.LW.Y.0042.000000T0000Z-121221T0000Z/ CADDO-BOSSIER-DE SOTO-RED RIVER-SABINE LA-NATCHITOCHES-WINN-GRANT- CALDWELL-LA SALLE-MCCURTAIN-FRANKLIN-TITUS-CAMP-MORRIS-CASS-WOOD- UPSHUR-MARION-SMITH-GREGG-HARRISON-CHEROKEE-RUSK-PANOLA- NACOGDOCHES-SHELBY-ANGELINA-SAN AUGUSTINE-SABINE TX- INCLUDING THE CITIES OF...SHREVEPORT...BOSSIER CITY...MANSFIELD... COUSHATTA...MANY...NATCHITOCHES...WINNFIELD...COLFAX...COLUMBIA... JENA...IDABEL...CLARKSVILLE...MT VERNON...MT PLEASANT... PITTSBURG...DAINGERFIELD...ATLANTA...QUITMAN...GILMER... JEFFERSON...TYLER...LONGVIEW...MARSHALL...RUSK...HENDERSON... CARTHAGE...NACOGDOCHES...CENTER...LUFKIN...SAN AUGUSTINE... HEMPHILL 1039 AM CST THU DEC 20 2012 ...LAKE WIND ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST THIS EVENING... * EVENT...A STRONG POST FRONTAL PRESSURE GRADIENT WILL YIELD NORTHWEST WINDS OF 15 TO 25 MPH WITH GUSTS AS HIGH AS 35 MPH OVER NORTHEAST TEXAS AND NORTHWEST LOUISIANA. * TIMING...WINDY CONDITIONS WILL CONTINUE THROUGH THE LATE AFTERNOON TODAY. * IMPACT...BOATERS SHOULD USE CAUTION IN OPEN WATERS ON AREA LAKES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A LAKE WIND ADVISORY INDICATES THAT WINDS WILL CAUSE ROUGH CHOP ON AREA LAKES. SMALL BOATS WILL BE ESPECIALLY PRONE TO CAPSIZING. && $$ 03
1 follow-up statement
360 WWUS74 KSHV 202147 AAB NPWSHV URGENT - WEATHER MESSAGE...UPDATED NATIONAL WEATHER SERVICE SHREVEPORT LA 347 PM CST THU DEC 20 2012 ...WINDY CONDITIONS EXPECTED DIMINISH SHORTLY AFTER SUNSET... ARZ050-051-059>061-070>073-LAZ003>006-012>014-TXZ097-210000- /O.CAN.KSHV.WI.Y.0001.000000T0000Z-121221T0000Z/ /O.EXA.KSHV.LW.Y.0042.000000T0000Z-121221T0000Z/ SEVIER-HOWARD-LITTLE RIVER-HEMPSTEAD-NEVADA-MILLER-LAFAYETTE- COLUMBIA-UNION AR-WEBSTER-CLAIBORNE-LINCOLN-UNION LA-BIENVILLE- JACKSON-OUACHITA-BOWIE- INCLUDING THE CITIES OF...DE QUEEN...NASHVILLE...ASHDOWN...HOPE... PRESCOTT...TEXARKANA...LEWISVILLE...MAGNOLIA...EL DORADO... MINDEN...HOMER...RUSTON...FARMERVILLE...BIENVILLE...JONESBORO... MONROE 347 PM CST THU DEC 20 2012 ...LAKE WIND ADVISORY IN EFFECT UNTIL 6 PM CST THIS EVENING... ...WIND ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A LAKE WIND ADVISORY...WHICH IS IN EFFECT UNTIL 6 PM CST THIS EVENING. THE WIND ADVISORY HAS BEEN CANCELLED. * EVENT...A STRONG POST FRONTAL PRESSURE GRADIENT WILL YIELD NORTHWEST WINDS OF 15 TO 25 MPH WITH GUSTS AS HIGH AS 35 MPH ACROSS SOUTHWEST ARKANSAS AND NORTH CENTRAL LOUISIANA. * TIMING...WINDY CONDITIONS WILL CONTINUE THROUGH THIS AFTERNOON. * IMPACT...BOATERS SHOULD USE CAUTION IN OPEN WATERS ON AREA LAKES. DRIVING CONDITIONS MAY BE DIFFICULT FOR THOSE IN HIGHER PROFILE VEHICLES...ESPECIALLY ALONG OPEN ROADWAYS WHERE THERE IS LITTLE VEGETATION TO BLOCK THE WIND. PRECAUTIONARY/PREPAREDNESS ACTIONS... A LAKE WIND ADVISORY INDICATES THAT WINDS WILL CAUSE ROUGH CHOP ON AREA LAKES. SMALL BOATS WILL BE ESPECIALLY PRONE TO TAKING ON WATER...PERHAPS TO THE POINT OF CAPSIZING. && $$ LAZ001-002-010-011-017>022-OKZ077-TXZ096-108>112-124>126-136>138- 149>153-165>167-210000- /O.CON.KSHV.LW.Y.0042.000000T0000Z-121221T0000Z/ CADDO-BOSSIER-DE SOTO-RED RIVER-SABINE LA-NATCHITOCHES-WINN-GRANT- CALDWELL-LA SALLE-MCCURTAIN-FRANKLIN-TITUS-CAMP-MORRIS-CASS-WOOD- UPSHUR-MARION-SMITH-GREGG-HARRISON-CHEROKEE-RUSK-PANOLA- NACOGDOCHES-SHELBY-ANGELINA-SAN AUGUSTINE-SABINE TX- INCLUDING THE CITIES OF...SHREVEPORT...BOSSIER CITY...MANSFIELD... COUSHATTA...MANY...NATCHITOCHES...WINNFIELD...COLFAX...COLUMBIA... JENA...IDABEL...CLARKSVILLE...MT VERNON...MT PLEASANT... PITTSBURG...DAINGERFIELD...ATLANTA...QUITMAN...GILMER... JEFFERSON...TYLER...LONGVIEW...MARSHALL...RUSK...HENDERSON... CARTHAGE...NACOGDOCHES...CENTER...LUFKIN...SAN AUGUSTINE... HEMPHILL 347 PM CST THU DEC 20 2012 ...LAKE WIND ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST THIS EVENING... * EVENT...A STRONG POST FRONTAL PRESSURE GRADIENT WILL YIELD NORTHWEST WINDS OF 15 TO 25 MPH WITH GUSTS AS HIGH AS 35 MPH OVER NORTHEAST TEXAS AND NORTHWEST LOUISIANA. * TIMING...WINDY CONDITIONS WILL CONTINUE INTO THIS AFTERNOON. * IMPACT...BOATERS SHOULD USE CAUTION IN OPEN WATERS ON AREA LAKES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A LAKE WIND ADVISORY INDICATES THAT WINDS WILL CAUSE ROUGH CHOP ON AREA LAKES. SMALL BOATS WILL BE ESPECIALLY PRONE TO TAKING ON WATER...PERHAPS TO POINT OF CAPSIZING. && $$ 24
The office that day
Everything else NWS Shreveport, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 19, 11:04 PM CST | Severe Thunderstorm Warning | SHV | Hempstead, Howard, Little River, Miller, Sevier | 56 min |
| Dec 19, 11:29 PM CST | Severe Thunderstorm Warning | SHV | Miller | 61 min |
| Dec 19, 11:57 PM CST | Severe Thunderstorm Warning | SHV | Columbia, Hempstead, Howard, Lafayette, Little River, Miller and 1 more | 63 min |
| Dec 20, 12:22 AM CST | Severe Thunderstorm Warning | SHV | Columbia, Lafayette, Miller | 53 min |
| Dec 20, 1:12 AM CST | Severe Thunderstorm Warning | SHV | Columbia, Union | 63 min |
| Dec 20, 2:04 AM CST | Severe Thunderstorm Warning | SHV | Union | 56 min |
| Dec 20, 12:29 AM CST | Severe Thunderstorm Warning | SHV | De Soto | 61 min |
| Dec 20, 1:51 AM CST | Severe Thunderstorm Warning | SHV | Bienville, De Soto, Grant, Jackson, Natchitoches, Red River and 2 more | 54 min |
| Dec 20, 2:44 AM CST | Severe Thunderstorm Warning | SHV | Caldwell, Grant, Jackson, LaSalle, Natchitoches, Winn | 61 min |
| Dec 19, 10:12 PM CST | Severe Thunderstorm Warning | SHV | Bowie, Red River | 63 min |
| Dec 19, 10:29 PM CST | Severe Thunderstorm Warning | SHV | Camp, Franklin, Morris, Smith, Titus, Upshur and 1 more | 61 min |
| Dec 19, 11:32 PM CST | Severe Thunderstorm Warning | SHV | Cherokee, Nacogdoches, Panola, Rusk, Smith | 58 min |
Nearby
Wind Advisories in Arkansas, 2012Wind Advisories in Louisiana, 2012Wind Advisories in Texas, 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.