Alert archive / Arkansas / Wind Advisories in 2017

Wind Advisory 8, NWS Memphis, TN

April 26, 20174 counties in Arkansas; 4 counties in Mississippi

NWS Memphis, TN issued this wind advisory at Apr 26, 2017, 4:06 AM CDT for 4 counties in Arkansas; 4 counties in Mississippi. It took effect at Apr 26, 2017, 1:00 PM CDT. It was in force for 6 hr.

The area

The counties it named.

The facts

Issued
Apr 26, 2017, 4:06 AM CDT (09:06 UTC)
In effect from
Apr 26, 2017, 1:00 PM CDT
Expired
Apr 26, 2017, 7:00 PM CDT
In force
6 hr
Issued by
NWS Memphis, TN

Counties Cross County, AR, Lee County, AR, Phillips County, AR, St. Francis County, AR, Coahoma County, MS, Quitman County, MS, Tallahatchie County, MS, Tunica County, MS

The radar

The Memphis radar (KNQA), 107 km from the middle of the area, began a volume at 09:06 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, 9.1 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 2017-04-26Temperature 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 2017-04-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 137 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1753 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
137 m²/s²
0-3 km storm-relative helicity
286 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

914 
WWUS74 KMEG 260906
NPWMEG

URGENT - WEATHER MESSAGE
National Weather Service Memphis TN
406 AM CDT Wed Apr 26 2017

...GUSTY SOUTH WINDS ACROSS PORTIONS OF EAST ARKANSAS AND 
NORTHWEST MISSISSIPPI THIS AFTERNOON INTO EARLY EVENING...

.A tightening pressure gradient ahead of a strong cold front will
produce gusty south winds across portions of East Arkansas and
Northwest Mississippi this afternoon into early evening.

ARZ035-048-049-058-MSZ007-010-011-020-270000-
/O.NEW.KMEG.WI.Y.0008.170426T1800Z-170427T0000Z/
Cross-St. Francis-Lee AR-Phillips-Tunica-Coahoma-Quitman-
Tallahatchie-
Including the cities of Wynne, Forrest City, Marianna, Helena, 
West Helena, Tunica, Clarksdale, Marks, and Charleston
406 AM CDT Wed Apr 26 2017

...WIND ADVISORY IN EFFECT FROM 1 PM THIS AFTERNOON TO 7 PM CDT
THIS EVENING...

The National Weather Service in Memphis has issued a Wind
Advisory, which is in effect from 1 PM this afternoon to 7 PM CDT
this evening. 

* WINDS...Sustained south winds 20-25 mph with gusts to around 35
  mph.

* TIMING...1 PM CDT this afternoon until 7 PM this evening. 

* IMPACTS...Loose objects such as trash cans will be blown 
  around. High profile vehicles traveling along east-west 
  roadways will be impacted. 

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.

&&

$$
1 follow-up statement
118 
WWUS74 KMEG 270015
NPWMEG

URGENT - WEATHER MESSAGE
National Weather Service Memphis TN
715 PM CDT Wed Apr 26 2017

ARZ035-048-049-058-MSZ007-010-011-020-270115-
/O.EXP.KMEG.WI.Y.0008.000000T0000Z-170427T0000Z/
Cross-St. Francis-Lee AR-Phillips-Tunica-Coahoma-Quitman-
Tallahatchie-
Including the cities of Wynne, Forrest City, Marianna, Helena, 
West Helena, Tunica, Clarksdale, Marks, and Charleston
715 PM CDT Wed Apr 26 2017

...WIND ADVISORY HAS EXPIRED...

Winds have dropped below criteria and the wind advisory has been 
allowed to expire. 

$$

SJM

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 26, 4:49 PM CDTSevere Thunderstorm WarningMEGCrittenden, Cross, Poinsett, St. Francis41 min
Apr 26, 4:53 PM CDTFlash Flood WarningMEGCraighead, Greene, Lawrence, Randolph3 hr
Apr 26, 5:23 PM CDTSevere Thunderstorm WarningMEGCraighead, Crittenden, Cross, Mississippi, Poinsett, St. Francis39 min
Apr 26, 5:43 PM CDTSevere Thunderstorm WarningMEGCrittenden, Mississippi47 min
Apr 26, 6:57 PM CDTSpecial Weather StatementMEGTunica48 min

Nearby

Wind Advisories in Arkansas, 2017Wind Advisories in Mississippi, 2017Every wind advisory in 2017

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.