Alert archive / Arkansas / Wind Advisories in 2011
Wind Advisory 4, NWS Memphis, TN
NWS Memphis, TN issued this wind advisory at Feb 27, 2011, 10:47 PM CST for 4 states. It was in force for 7 hr.
The area
The counties it named.
The facts
- Issued
- Feb 27, 2011, 10:47 PM CST (04:47 UTC)
- Expired
- Feb 28, 2011, 6:00 AM CST
- In force
- 7 hr
- Issued by
- NWS Memphis, TN
All 27 counties
Clay County, AR, Craighead County, AR, Crittenden County, AR, Cross County, AR, Greene County, AR, Lawrence County, AR, Lee County, AR, Mississippi County, AR, Phillips County, AR, Poinsett County, AR, Randolph County, AR, St. Francis County, AR, Dunklin County, MO, Pemiscot County, MO, Coahoma County, MS, DeSoto County, MS, Panola County, MS, Quitman County, MS, Tallahatchie County, MS, Tate County, MS, Tunica County, MS, Dyer County, TN, Lake County, TN, Lauderdale County, TN, Obion County, TN, Shelby County, TN, Tipton County, TN
The radar
The Memphis radar (KNQA), 34 km from the middle of the area, began a volume at 04:44 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
Little Rock, AR (KLZK), launched 00:00Z, 4.8 hours before the alert went out and 67 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
- 836 J/kg
- Mixed-layer CIN
- -37 J/kg
- Mixed-layer LCL
- 917 m above ground
- 0-6 km bulk shear
- 70 kt
- 0-1 km storm-relative helicity
- 442 m²/s²
- 0-3 km storm-relative helicity
- 556 m²/s²
- Significant tornado parameter
- 3.1
- Supercell composite
- 11.5
The text
As transmitted, in the capitals the NWS used until 2016.
827 WWUS74 KMEG 280447 NPWMEG URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE MEMPHIS TN 1047 PM CST SUN FEB 27 2011 ...GUSTY SOUTHWEST WINDS EXPECTED OVERNIGHT... .STRONG SOUTHWEST LOW LEVEL WINDS AHEAD OF A POTENT AREA OF LOW PRESSURE ARE EXPECTED TO PRODUCE GUSTY SURFACE WINDS ACROSS THE MID SOUTH OVERNIGHT. ARZ008-009-017-018-026>028-035-036-048-049-058-MOZ113-115-MSZ001- 007-008-010>012-020-TNZ001-002-019-048-049-088-281200- /O.NEW.KMEG.WI.Y.0004.110228T0447Z-110228T1200Z/ RANDOLPH-CLAY-LAWRENCE-GREENE-CRAIGHEAD-POINSETT-MISSISSIPPI- CROSS-CRITTENDEN-ST. FRANCIS-LEE AR-PHILLIPS-DUNKLIN-PEMISCOT- DESOTO-TUNICA-TATE-COAHOMA-QUITMAN-PANOLA-TALLAHATCHIE-LAKE-OBION- DYER-LAUDERDALE-TIPTON-SHELBY- INCLUDING THE CITIES OF...WALNUT RIDGE...PARAGOULD...JONESBORO... HARRISBURG...BLYTHEVILLE...WYNNE...WEST MEMPHIS...FORREST CITY... HELENA...KENNETT...CARUTHERSVILLE...SOUTHAVEN...OLIVE BRANCH... TUNICA...CLARKSDALE...BATESVILLE...UNION CITY...DYERSBURG... COVINGTON...BARTLETT...GERMANTOWN...COLLIERVILLE...MEMPHIS... MILLINGTON 1047 PM CST SUN FEB 27 2011 ...WIND ADVISORY IN EFFECT UNTIL 6 AM CST MONDAY... THE NATIONAL WEATHER SERVICE IN MEMPHIS HAS ISSUED A WIND ADVISORY...WHICH IS IN EFFECT UNTIL 6 AM CST MONDAY. * WINDS:SOUTHWEST WINDS SUSTAINED BETWEEN 20 TO 30 MPH... WITH GUSTS UP TO 40 MPH. * TIMING:GUSTY WINDS EXPECTED THROUGH 6 AM MONDAY MORNING. * IMPACTS: WINDS OF THIS MAGNITUDE WILL LIKELY BLOW AROUND UNSECURED OBJECTS AND MAY DOWN A FEW TREE BRANCHES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY MEANS THAT SUSTAINED WINDS OF 25 TO 39 MPH ARE EXPECTED...OR GUSTS WILL RANGE BETWEEN 40 AND 57 MPH. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION. && $$
The office that day
Everything else NWS Memphis, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 28, 5:29 AM CST | Flash Flood Warning | MEG | Carroll, Gibson | 3 hr |
| Feb 28, 6:35 AM CST | Tornado Warning | MEG | Decatur, Henderson | 25 min |
| Feb 28, 6:53 AM CST | Special Weather Statement | MEG | Shelby | 37 min |
| Feb 28, 7:08 AM CST | Special Weather Statement | MEG | Shelby, Tipton | 22 min |
| Feb 28, 8:31 AM CST | Flash Flood Warning | MEG | Carroll, Gibson | 117 min |
| Feb 28, 12:06 PM CST | Wind Advisory | MEG | Carroll, Chester, Crockett, Decatur, Dyer, Fayette and 14 more | 4 hr |
| Feb 28, 1:46 AM CST | Special Weather Statement | MEG | Lawrence, Randolph | 29 min |
| Feb 28, 2:17 AM CST | Special Weather Statement | MEG | Clay, Randolph | 43 min |
| Feb 28, 3:00 AM CST | Severe Thunderstorm Warning | MEG | Clay | 30 min |
| Feb 28, 3:44 AM CST | Severe Thunderstorm Warning | MEG | Clay | 46 min |
| Feb 28, 3:00 AM CST | Severe Thunderstorm Warning | MEG | 30 min | |
| Feb 28, 3:44 AM CST | Severe Thunderstorm Warning | MEG | 46 min |
Nearby
Wind Advisories in Arkansas, 2011Wind Advisories in Mississippi, 2011Wind Advisories in Tennessee, 2011Every wind advisory in 2011
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.