Alert archive / Arkansas / Wind Advisories in 2012

Wind Advisory 12, NWS Memphis, TN

March 7, 20124 states

NWS Memphis, TN issued this wind advisory at Mar 7, 2012, 3:36 AM CST for 4 states. It took effect at Mar 7, 2012, 9:42 AM CST. It was in force for 8 hr.

The area

The counties it named.

The facts

Issued
Mar 7, 2012, 3:36 AM CST (09:36 UTC)
In effect from
Mar 7, 2012, 9:42 AM CST
Expired
Mar 7, 2012, 6:00 PM CST
In force
8 hr
Issued by
NWS Memphis, TN
All 24 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, Lauderdale County, TN, Shelby County, TN, Tipton County, TN

The radar

The Memphis radar (KNQA), 44 km from the middle of the area, began a volume at 09:35 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, 9.6 hours before the alert went out and 61 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, Little Rock, AR at 00:00Z on 2012-03-07Temperature 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, Little Rock, AR at 00:00Z on 2012-03-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 97 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
2226 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
97 m²/s²
0-3 km storm-relative helicity
253 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.

828 
WWUS74 KMEG 070936
NPWMEG

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MEMPHIS TN
336 AM CST WED MAR 7 2012

...STRONG WINDS EXPECTED OVER WESTERN SECTIONS OF THE MID-SOUTH...

.GUSTY SOUTH WINDS WILL PREVAIL OVER MUCH OF THE REGION TODAY AHEAD
OF LOW PRESSURE LOCATED OVER THE CENTRAL PLAINS. THE STRONGEST
WINDS WILL BE OVER AREAS WEST OF A LINE FROM HAYTI MISSOURI TO
RIPLEY TENNESSEE TO CHARLESTON MISSISSIPPI.

ARZ008-009-017-018-026>028-035-036-048-049-058-MOZ113-115-MSZ001-
007-008-010>012-020-TNZ048-049-088-071745-
/O.NEW.KMEG.WI.Y.0012.120307T1600Z-120308T0000Z/
RANDOLPH-CLAY-LAWRENCE-GREENE-CRAIGHEAD-POINSETT-MISSISSIPPI-
CROSS-CRITTENDEN-ST. FRANCIS-LEE AR-PHILLIPS-DUNKLIN-PEMISCOT-
DESOTO-TUNICA-TATE-COAHOMA-QUITMAN-PANOLA-TALLAHATCHIE-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...COVINGTON...BARTLETT...
GERMANTOWN...COLLIERVILLE...MEMPHIS...MILLINGTON
336 AM CST WED MAR 7 2012

...WIND ADVISORY IN EFFECT FROM 10 AM THIS MORNING TO 6 PM CST
THIS EVENING...

THE NATIONAL WEATHER SERVICE IN MEMPHIS HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT FROM 10 AM THIS MORNING TO 6 PM CST
THIS EVENING. 

* WINDS...SUSTAINED WINDS OF 20 TO 30 MPH WITH GUSTS UP TO 35 MPH.

* TIMING...LATE THIS MORNING THROUGH LATE AFTERNOON.

* IMPACTS...LOOSE ITEMS WILL BE PRONE TO BLOW AROUND AND TRAVEL 
  WILL BE MORE DIFFICULT...ESPECIALLY FOR THOSE DRIVING HIGH 
  PROFILE VEHICLES. PERSONS ARE ENCOURAGED TO SECURE LOOSE 
  OUTDOOR ITEMS SUCH AS TRASH CANS AND LAWN FURNITURE. 

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.

&&

$$
2 follow-up statements
004 
WWUS74 KMEG 071542
NPWMEG

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MEMPHIS TN
942 AM CST WED MAR 7 2012

...STRONG WINDS EXPECTED OVER WESTERN SECTIONS OF THE MIDSOUTH...

.GUSTY SOUTH WINDS WILL PREVAIL OVER MUCH OF THE MIDSOUTH
TODAY AHEAD OF LOW PRESSURE LOCATED OVER THE CENTRAL PLAINS. THE
STRONGEST WINDS WILL BE OVER AREAS WEST OF A LINE FROM HAYTI
MISSOURI TO RIPLEY TENNESSEE TO CHARLESTON MISSISSIPPI.

ARZ008-009-017-018-026>028-035-036-048-049-058-MOZ113-115-MSZ001-
007-008-010>012-020-TNZ048-049-088-080000-
/O.EXT.KMEG.WI.Y.0012.120307T1542Z-120308T0000Z/
RANDOLPH-CLAY-LAWRENCE-GREENE-CRAIGHEAD-POINSETT-MISSISSIPPI-
CROSS-CRITTENDEN-ST. FRANCIS-LEE AR-PHILLIPS-DUNKLIN-PEMISCOT-
DESOTO-TUNICA-TATE-COAHOMA-QUITMAN-PANOLA-TALLAHATCHIE-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...COVINGTON...BARTLETT...
GERMANTOWN...COLLIERVILLE...MEMPHIS...MILLINGTON
942 AM CST WED MAR 7 2012

...WIND ADVISORY NOW IN EFFECT UNTIL 6 PM CST THIS EVENING...

* WINDS...SUSTAINED WINDS OF 20 TO 30 MPH WITH GUSTS BETWEEN 35
  AND 40 MPH.

* TIMING...THROUGH LATE AFTERNOON.

* IMPACTS...LOOSE ITEMS WILL BE PRONE TO BLOW AROUND AND TRAVEL 
  WILL BE MORE DIFFICULT...ESPECIALLY FOR THOSE DRIVING HIGH 
  PROFILE VEHICLES. PERSONS ARE ENCOURAGED TO SECURE LOOSE 
  OUTDOOR ITEMS SUCH AS TRASH CANS AND LAWN FURNITURE. 

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.

&&

$$

JCL
337 
WWUS74 KMEG 080024
NPWMEG

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MEMPHIS TN
624 PM CST WED MAR 7 2012

...STRONG WINDS ARE SLOWLY DIMINISHING ACROSS THE MID SOUTH...

.WINDS HAVE WEAKENED BELOW ADVISORY CRITERIA THIS EVENING.

ARZ008-009-017-018-026>028-035-036-048-049-058-MOZ113-115-MSZ001-
007-008-010>012-020-TNZ048-049-088-080130-
/O.EXP.KMEG.WI.Y.0012.000000T0000Z-120308T0000Z/
RANDOLPH-CLAY-LAWRENCE-GREENE-CRAIGHEAD-POINSETT-MISSISSIPPI-
CROSS-CRITTENDEN-ST. FRANCIS-LEE AR-PHILLIPS-DUNKLIN-PEMISCOT-
DESOTO-TUNICA-TATE-COAHOMA-QUITMAN-PANOLA-TALLAHATCHIE-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...COVINGTON...BARTLETT...
GERMANTOWN...COLLIERVILLE...MEMPHIS...MILLINGTON
624 PM CST WED MAR 7 2012

...WIND ADVISORY HAS EXPIRED...

WINDS HAVE FALLEN BELOW WIND ADVISORY CRITERIA THIS EVENING.

$$

JLH

The office that day

Everything else NWS Memphis, TN issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 7, 10:03 AM CSTRiver Flood WarningMEGMonroe60 hr
Mar 7, 10:03 AM CSTRiver Flood WarningMEGMonroe60 hr

Nearby

Wind Advisories in Arkansas, 2012Wind Advisories in Mississippi, 2012Wind Advisories in Tennessee, 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.