Alert archive / Arkansas / Wind Advisories in 2015

Wind Advisory 4, NWS Memphis, TN

April 9, 201512 counties in Arkansas; Dunklin County, Pemiscot County, Missouri

NWS Memphis, TN issued this wind advisory at Apr 9, 2015, 3:40 AM CDT for 12 counties in Arkansas; Dunklin County, Pemiscot County, Missouri. It took effect at Apr 9, 2015, 9:00 AM CDT. It was in force for 10 hr.

The area

The counties it named.

The facts

Issued
Apr 9, 2015, 3:40 AM CDT (08:40 UTC)
In effect from
Apr 9, 2015, 9:00 AM CDT
Expired
Apr 9, 2015, 7:00 PM CDT
In force
10 hr
Issued by
NWS Memphis, TN

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

The radar

The Memphis radar (KNQA), 71 km from the middle of the area, began a volume at 08:43 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 (KBYH), launched 00:00Z, 8.7 hours before the alert went out and 107 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 2015-04-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 924 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 2015-04-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 90 square meters per square second.193958Sfc1 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
924 J/kg
Mixed-layer CIN
-42 J/kg
Mixed-layer LCL
1489 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
90 m²/s²
0-3 km storm-relative helicity
124 m²/s²
Significant tornado parameter
0.2
Supercell composite
4.7

Open this sounding in Storm Lab

The text

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

780 
WWUS74 KMEG 090840
NPWMEG

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MEMPHIS TN
340 AM CDT THU APR 9 2015

...WIND ADVISORY IN EFFECT FOR AREAS WEST OF THE MISSISSIPPI
RIVER FROM EARLY THIS MORNING THROUGH EARLY EVENING...

.SOUTHWESTERLY WINDS WILL BECOME STRONG AHEAD OF A DEEPENING LOW
PRESSURE SYSTEM MOVING ACROSS THE CENTRAL PLAINS THIS AFTERNOON.
WINDS SUSTAINED 25 TO 30 MPH WITH GUSTS TO AROUND 40 MPH WILL BE
PREVALENT THROUGHOUT THE DAY MAINLY WEST OF THE MISSISSIPPI RIVER.

ARZ008-009-017-018-026>028-035-036-048-049-058-MOZ113-115-091645-
/O.NEW.KMEG.WI.Y.0004.150409T1400Z-150410T0000Z/
RANDOLPH-CLAY-LAWRENCE-GREENE-CRAIGHEAD-POINSETT-MISSISSIPPI-
CROSS-CRITTENDEN-ST. FRANCIS-LEE AR-PHILLIPS-DUNKLIN-PEMISCOT-
INCLUDING THE CITIES OF...POCAHONTAS...PIGGOTT...CORNING...
WALNUT RIDGE...PARAGOULD...JONESBORO...HARRISBURG...BLYTHEVILLE...
WYNNE...WEST MEMPHIS...FORREST CITY...MARIANNA...HELENA...
WEST HELENA...KENNETT...CARUTHERSVILLE
340 AM CDT THU APR 9 2015

...WIND ADVISORY IN EFFECT FROM 9 AM THIS MORNING TO 7 PM CDT
THIS EVENING...

THE NATIONAL WEATHER SERVICE IN MEMPHIS HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT FROM 9 AM THIS MORNING TO 7 PM CDT
THIS EVENING. 

* WINDS...SUSTAINED WINDS 25 TO 30 MPH WITH GUSTS 35 TO 40 MPH.

* TIMING...THIS MORNING THROUGH EARLY EVENING.

* IMPACTS...ANY LOOSE OUTDOOR ITEMS NOT TIED DOWN MAY BECOME
  AIRBORNE AND POSE A HAZARD. IN ADDITION...HIGH PROFILE VEHICLES
  SHOULD USE EXTRA CAUTION WHILE DRIVING.

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.

&&

$$

AC3
1 follow-up statement
456 
WWUS74 KMEG 091506
NPWMEG

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MEMPHIS TN
1006 AM CDT THU APR 9 2015

...WIND ADVISORY IN EFFECT FOR AREAS WEST OF THE MISSISSIPPI
RIVER FROM THROUGH EARLY EVENING...

.SOUTHWESTERLY WINDS WILL BECOME STRONG AHEAD OF A DEEPENING LOW
PRESSURE SYSTEM MOVING ACROSS THE CENTRAL PLAINS THIS AFTERNOON.
WINDS SUSTAINED 25 TO 30 MPH WITH GUSTS TO AROUND 40 MPH WILL BE
PREVALENT THROUGHOUT THE DAY MAINLY WEST OF THE MISSISSIPPI
RIVER.

ARZ008-009-017-018-026>028-035-036-048-049-058-MOZ113-115-100000-
/O.CON.KMEG.WI.Y.0004.000000T0000Z-150410T0000Z/
RANDOLPH-CLAY-LAWRENCE-GREENE-CRAIGHEAD-POINSETT-MISSISSIPPI-
CROSS-CRITTENDEN-ST. FRANCIS-LEE AR-PHILLIPS-DUNKLIN-PEMISCOT-
INCLUDING THE CITIES OF...POCAHONTAS...PIGGOTT...CORNING...
WALNUT RIDGE...PARAGOULD...JONESBORO...HARRISBURG...BLYTHEVILLE...
WYNNE...WEST MEMPHIS...FORREST CITY...MARIANNA...HELENA...
WEST HELENA...KENNETT...CARUTHERSVILLE
1006 AM CDT THU APR 9 2015

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

* WINDS...SUSTAINED WINDS 25 TO 30 MPH WITH GUSTS 35 TO 40 MPH.

* TIMING...THIS MORNING THROUGH EARLY EVENING.

* IMPACTS...ANY LOOSE OUTDOOR ITEMS NOT TIED DOWN MAY BECOME 
  AIRBORNE AND POSE A HAZARD. IN ADDITION...HIGH PROFILE 
  VEHICLES SHOULD USE EXTRA CAUTION WHILE DRIVING. 

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.

&&

$$

KRM

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 9, 1:10 PM CDTRiver Flood AdvisoryMEGMississippi6 days
Apr 9, 1:10 PM CDTRiver Flood AdvisoryMEGMississippi9 days
Apr 9, 6:21 PM CDTSevere Thunderstorm WarningMEGCraighead, Greene, Lawrence39 min
Apr 9, 6:59 PM CDTSevere Thunderstorm WarningMEGClay, Greene23 min

Nearby

Wind Advisories in Arkansas, 2015Wind Advisories in Missouri, 2015Every wind advisory in 2015

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.