Alert archive / Mississippi / Wind Advisories in 2011

Wind Advisory 13, NWS Memphis, TN

April 11, 201122 counties in Mississippi; 4 counties in Arkansas; 20 counties in Tennessee

NWS Memphis, TN issued this wind advisory at Apr 11, 2011, 4:43 AM CDT for 22 counties in Mississippi; 4 counties in Arkansas; 20 counties in Tennessee. It took effect at Apr 11, 2011, 7:00 AM CDT. It was in force for 10 hr.

The area

The counties it named.

The facts

Issued
Apr 11, 2011, 4:43 AM CDT (09:43 UTC)
In effect from
Apr 11, 2011, 7:00 AM CDT
Expired
Apr 11, 2011, 4:58 PM CDT
In force
10 hr
Issued by
NWS Memphis, TN
All 46 counties

Crittenden County, AR, Lee County, AR, Phillips County, AR, St. Francis County, AR, Alcorn County, MS, Benton County, MS, Calhoun County, MS, Chickasaw County, MS, Coahoma County, MS, DeSoto County, MS, Itawamba County, MS, Lafayette County, MS, Lee County, MS, Marshall County, MS, Monroe County, MS, Panola County, MS, Pontotoc County, MS, Prentiss County, MS, Quitman County, MS, Tallahatchie County, MS, Tate County, MS, Tippah County, MS, Tishomingo County, MS, Tunica County, MS, Union County, MS, Yalobusha County, MS, Carroll County, TN, Chester County, TN, Crockett County, TN, Decatur County, TN, Dyer County, TN, Fayette County, TN, Gibson County, TN, Hardeman County, TN, Hardin County, TN, Haywood County, TN, Henderson County, TN, Henry County, TN, Lake County, TN, Lauderdale County, TN, Madison County, TN, McNairy County, TN, Obion County, TN, Shelby County, TN, Tipton County, TN, Weakley County, TN

The radar

The Memphis radar (KNQA), 65 km from the middle of the area, began a volume at 09:44 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, 9.7 hours before the alert went out and 64 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 2011-04-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 214 joules per kilogram.LCLLFCEL10008507005003002001001 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 2011-04-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 69 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
214 J/kg
Mixed-layer CIN
-347 J/kg
Mixed-layer LCL
2033 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
69 m²/s²
0-3 km storm-relative helicity
118 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.

481 
WWUS74 KMEG 110943
NPWMEG

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MEMPHIS TN
443 AM CDT MON APR 11 2011

...WINDY CONDITIONS EXPECTED ACROSS MUCH OF THE MID SOUTH
THROUGH EARLY THIS EVENING...

.A STRONG UPPER LEVEL TROUGH AND ASSOCIATED COLD FRONT WILL MOVE
THROUGH THE MID SOUTH TODAY. A TIGHT PRESSURE GRADIENT ACROSS THE
LOWER MISSISSIPPI VALLEY WILL RESULT IN GUSTY SOUTHWEST WINDS
ACROSS MUCH OF THE MID SOUTH THROUGH EARLY THIS EVENING.

ARZ036-048-049-058-MSZ001>017-020>024-TNZ001>004-019>021-048>055-
088>092-112200-
/O.NEW.KMEG.WI.Y.0013.110411T1200Z-110412T0000Z/
CRITTENDEN-ST. FRANCIS-LEE AR-PHILLIPS-DESOTO-MARSHALL-BENTON MS-
TIPPAH-ALCORN-TISHOMINGO-TUNICA-TATE-PRENTISS-COAHOMA-QUITMAN-
PANOLA-LAFAYETTE-UNION-PONTOTOC-LEE MS-ITAWAMBA-TALLAHATCHIE-
YALOBUSHA-CALHOUN-CHICKASAW-MONROE-LAKE-OBION-WEAKLEY-HENRY-DYER-
GIBSON-CARROLL-LAUDERDALE-TIPTON-HAYWOOD-CROCKETT-MADISON-CHESTER-
HENDERSON-DECATUR-SHELBY-FAYETTE-HARDEMAN-MCNAIRY-HARDIN-
INCLUDING THE CITIES OF...WEST MEMPHIS...FORREST CITY...HELENA...
SOUTHAVEN...OLIVE BRANCH...CORINTH...IUKA...TUNICA...BOONEVILLE...
CLARKSDALE...BATESVILLE...OXFORD...NEW ALBANY...TUPELO...AMORY...
ABERDEEN...UNION CITY...MARTIN...DRESDEN...PARIS...DYERSBURG...
HUMBOLDT...MILAN...HUNTINGDON...COVINGTON...JACKSON...LEXINGTON...
BARTLETT...GERMANTOWN...COLLIERVILLE...MEMPHIS...MILLINGTON...
SOMERVILLE...BOLIVAR...SAVANNAH
443 AM CDT MON APR 11 2011

...WIND ADVISORY IN EFFECT UNTIL 7 PM CDT THIS EVENING...

THE NATIONAL WEATHER SERVICE IN MEMPHIS HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT UNTIL 7 PM CDT THIS EVENING. 

* WINDS: SUSTAINED SOUTHWEST WINDS BETWEEN 20 TO 30 MPH WITH GUSTS
  TO 40 MPH.

* TIMING: THROUGH 7 PM CDT THIS EVENING

* IMPACTS: DRIVING HIGH PROFILE VEHICLES ON EAST-WEST ROADS WILL 
  BE DIFFICULT. BOATERS SHOULD USE EXTREME CAUTION IF VENTURING 
  ONTO AREA LAKES AND RIVERS. TRASH CANS... LAWN FURNITURE...AND 
  OTHER LOOSE OR LIGHTWEIGHT OUTDOOR OBJECTS ARE SUBJECT TO BLOW 
  AROUND. 

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.

&&

$$
3 follow-up statements
457 
WWUS74 KMEG 111805
NPWMEG

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MEMPHIS TN
105 PM CDT MON APR 11 2011

...WINDY CONDITIONS EXPECTED ACROSS PORTIONS OF THE MIDSOUTH
THROUGH EARLY THIS EVENING...

.A STRONG UPPER LEVEL TROUGH AND ASSOCIATED COLD FRONT WILL MOVE
THROUGH THE MID SOUTH TODAY. A TIGHT PRESSURE GRADIENT ACROSS THE
LOWER MISSISSIPPI VALLEY WILL RESULT IN GUSTY SOUTHWEST WINDS
ACROSS MUCH OF THE MID SOUTH THROUGH EARLY THIS EVENING.

ARZ036-048-049-058-MSZ001>017-020>024-TNZ001>004-019>021-048>055-
088>092-120000-
/O.CON.KMEG.WI.Y.0013.000000T0000Z-110412T0000Z/
CRITTENDEN-ST. FRANCIS-LEE AR-PHILLIPS-DESOTO-MARSHALL-BENTON MS-
TIPPAH-ALCORN-TISHOMINGO-TUNICA-TATE-PRENTISS-COAHOMA-QUITMAN-
PANOLA-LAFAYETTE-UNION-PONTOTOC-LEE MS-ITAWAMBA-TALLAHATCHIE-
YALOBUSHA-CALHOUN-CHICKASAW-MONROE-LAKE-OBION-WEAKLEY-HENRY-DYER-
GIBSON-CARROLL-LAUDERDALE-TIPTON-HAYWOOD-CROCKETT-MADISON-CHESTER-
HENDERSON-DECATUR-SHELBY-FAYETTE-HARDEMAN-MCNAIRY-HARDIN-
INCLUDING THE CITIES OF...WEST MEMPHIS...FORREST CITY...HELENA...
SOUTHAVEN...OLIVE BRANCH...CORINTH...IUKA...TUNICA...BOONEVILLE...
CLARKSDALE...BATESVILLE...OXFORD...NEW ALBANY...TUPELO...AMORY...
ABERDEEN...UNION CITY...MARTIN...DRESDEN...PARIS...DYERSBURG...
HUMBOLDT...MILAN...HUNTINGDON...COVINGTON...JACKSON...LEXINGTON...
BARTLETT...GERMANTOWN...COLLIERVILLE...MEMPHIS...MILLINGTON...
SOMERVILLE...BOLIVAR...SAVANNAH
105 PM CDT MON APR 11 2011

...WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING...

A WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING. 

* WINDS: SUSTAINED SOUTHWEST WINDS BETWEEN 20 TO 30 MPH WITH 
  GUSTS TO 40 MPH. 

* TIMING: THROUGH 7 PM CDT THIS EVENING

* IMPACTS: DRIVING HIGH PROFILE VEHICLES ON EAST-WEST ROADS WILL 
  BE DIFFICULT. BOATERS SHOULD USE EXTREME CAUTION IF VENTURING 
  ONTO AREA LAKES AND RIVERS. TRASH CANS... LAWN FURNITURE...AND 
  OTHER LOOSE OR LIGHTWEIGHT OUTDOOR OBJECTS ARE SUBJECT TO BLOW 
  AROUND. 

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.

&&

$$
720 
WWUS74 KMEG 111811
NPWMEG

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MEMPHIS TN
111 PM CDT MON APR 11 2011

...WINDY CONDITIONS EXPECTED ACROSS PORTIONS OF THE MIDSOUTH
THROUGH EARLY THIS EVENING...

.A STRONG UPPER LEVEL TROUGH AND ASSOCIATED COLD FRONT WILL MOVE
THROUGH THE MID SOUTH TODAY. A TIGHT PRESSURE GRADIENT ACROSS THE
LOWER MISSISSIPPI VALLEY WILL RESULT IN GUSTY SOUTHWEST WINDS
ACROSS MUCH OF THE MID SOUTH THROUGH EARLY THIS EVENING.

ARZ036-048-TNZ001>004-019>021-048>055-111915-
/O.CAN.KMEG.WI.Y.0013.000000T0000Z-110412T0000Z/
CRITTENDEN-ST. FRANCIS-LAKE-OBION-WEAKLEY-HENRY-DYER-GIBSON-
CARROLL-LAUDERDALE-TIPTON-HAYWOOD-CROCKETT-MADISON-CHESTER-
HENDERSON-DECATUR-
INCLUDING THE CITIES OF...WEST MEMPHIS...FORREST CITY...
UNION CITY...MARTIN...DRESDEN...PARIS...DYERSBURG...HUMBOLDT...
MILAN...HUNTINGDON...COVINGTON...JACKSON...LEXINGTON
111 PM CDT MON APR 11 2011

...WIND ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN MEMPHIS HAS CANCELLED THE WIND
ADVISORY. WINDS HAVE DIMINISHED BELOW ADVISORY CRITERIA. 


$$

ARZ049-058-MSZ001>017-020>024-TNZ088>092-120000-
/O.CON.KMEG.WI.Y.0013.000000T0000Z-110412T0000Z/
LEE AR-PHILLIPS-DESOTO-MARSHALL-BENTON MS-TIPPAH-ALCORN-
TISHOMINGO-TUNICA-TATE-PRENTISS-COAHOMA-QUITMAN-PANOLA-LAFAYETTE-
UNION-PONTOTOC-LEE MS-ITAWAMBA-TALLAHATCHIE-YALOBUSHA-CALHOUN-
CHICKASAW-MONROE-SHELBY-FAYETTE-HARDEMAN-MCNAIRY-HARDIN-
INCLUDING THE CITIES OF...HELENA...SOUTHAVEN...OLIVE BRANCH...
CORINTH...IUKA...TUNICA...BOONEVILLE...CLARKSDALE...BATESVILLE...
OXFORD...NEW ALBANY...TUPELO...AMORY...ABERDEEN...BARTLETT...
GERMANTOWN...COLLIERVILLE...MEMPHIS...MILLINGTON...SOMERVILLE...
BOLIVAR...SAVANNAH
111 PM CDT MON APR 11 2011

...WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING...

A WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING. 

* WINDS: SUSTAINED SOUTHWEST WINDS BETWEEN 20 TO 30 MPH WITH 
  GUSTS TO 40 MPH. 

* TIMING: THROUGH 7 PM CDT THIS EVENING

* IMPACTS: DRIVING HIGH PROFILE VEHICLES ON EAST-WEST ROADS WILL 
  BE DIFFICULT. BOATERS SHOULD USE EXTREME CAUTION IF VENTURING 
  ONTO AREA LAKES AND RIVERS. TRASH CANS... LAWN FURNITURE...AND 
  OTHER LOOSE OR LIGHTWEIGHT OUTDOOR OBJECTS ARE SUBJECT TO BLOW 
  AROUND. 

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.

&&

$$
060 
WWUS74 KMEG 112158
NPWMEG

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MEMPHIS TN
458 PM CDT MON APR 11 2011


ARZ049-058-MSZ001>017-020>024-TNZ088>092-112300-
/O.CAN.KMEG.WI.Y.0013.000000T0000Z-110412T0000Z/
LEE AR-PHILLIPS-DESOTO-MARSHALL-BENTON MS-TIPPAH-ALCORN-
TISHOMINGO-TUNICA-TATE-PRENTISS-COAHOMA-QUITMAN-PANOLA-LAFAYETTE-
UNION-PONTOTOC-LEE MS-ITAWAMBA-TALLAHATCHIE-YALOBUSHA-CALHOUN-
CHICKASAW-MONROE-SHELBY-FAYETTE-HARDEMAN-MCNAIRY-HARDIN-
INCLUDING THE CITIES OF...HELENA...SOUTHAVEN...OLIVE BRANCH...
CORINTH...IUKA...TUNICA...BOONEVILLE...CLARKSDALE...BATESVILLE...
OXFORD...NEW ALBANY...TUPELO...AMORY...ABERDEEN...BARTLETT...
GERMANTOWN...COLLIERVILLE...MEMPHIS...MILLINGTON...SOMERVILLE...
BOLIVAR...SAVANNAH
458 PM CDT MON APR 11 2011

...WIND ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN MEMPHIS HAS CANCELED THE WIND
ADVISORY. 

WIND SPEEDS HAVE DECREASED ACROSS SOUTHERN PORTIONS OF THE
MIDSOUTH THUS THE WIND ADVISORY HAS BEEN CANCELED.

$$

KRM

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 11, 4:23 PM CDTSpecial Weather StatementMEGItawamba, Lee37 min
Apr 11, 6:46 AM CDTSpecial Weather StatementMEGPoinsett29 min
Apr 11, 7:00 AM CDTSevere Thunderstorm WarningMEGCraighead, Crittenden, Cross, Greene, Mississippi, Poinsett45 min
Apr 11, 7:42 AM CDTSevere Thunderstorm WarningMEGCraighead, Mississippi, Poinsett48 min
Apr 11, 11:45 AM CDTSevere Thunderstorm WarningMEGLee, Phillips, St. Francis60 min
Apr 11, 12:34 PM CDTFlash Flood WarningMEGCrittenden, Cross, Mississippi, Poinsett3 hr
Apr 11, 8:29 AM CDTSevere Thunderstorm WarningMEGCrockett, Dyer, Gibson, Haywood, Lake, Lauderdale and 2 more36 min
Apr 11, 12:27 PM CDTRiver Flood AdvisoryMEGDyer, Lake3 days
Apr 11, 1:54 PM CDTFlash Flood WarningMEGShelby80 min
Apr 11, 2:17 PM CDTFlash Flood WarningMEGDyer, Lauderdale, Obion117 min
Apr 11, 2:43 PM CDTSpecial Weather StatementMEGCrockett, Gibson, Madison32 min
Apr 11, 3:45 PM CDTFlash Flood WarningMEGDecatur2 hr

Nearby

Wind Advisories in Mississippi, 2011Wind Advisories in Tennessee, 2011Wind Advisories in Arkansas, 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.