Alert archive / Arkansas / Special Weather Statements in 2012

Special Weather Statement, NWS Memphis, TN

May 7, 2012Mississippi County, Arkansas

NWS Memphis, TN issued this special weather statement at May 7, 2012, 1:07 AM CDT for Mississippi County, Arkansas. It was in force for 23 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
May 7, 2012, 1:07 AM CDT (06:07 UTC)
Expired
May 7, 2012, 1:30 AM CDT
In force
23 min
Issued by
NWS Memphis, TN

County Mississippi County, AR

The radar

The Memphis radar (KNQA), 57 km from the middle of the area, began a volume at 06:07 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, 6.1 hours before the alert went out and 114 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 2012-05-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1694 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Little Rock, AR at 00:00Z on 2012-05-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 15 square meters per square second.1939Sfc1 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
1694 J/kg
Mixed-layer CIN
-49 J/kg
Mixed-layer LCL
1441 m above ground
0-6 km bulk shear
8 kt
0-1 km storm-relative helicity
15 m²/s²
0-3 km storm-relative helicity
59 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.

104 
WWUS84 KMEG 070607
SPSMEG

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MEMPHIS TN
107 AM CDT MON MAY 7 2012

ARZ028-070630-
MISSISSIPPI AR-
107 AM CDT MON MAY 7 2012

...THE NATIONAL WEATHER SERVICE IN MEMPHIS HAS ISSUED A SIGNIFICANT
WEATHER ADVISORY UNTIL 130 AM CDT FOR...

  CENTRAL MISSISSIPPI COUNTY IN EASTERN ARKANSAS...

A STRONG THUNDERSTORM PRODUCING PEA SIZE HAIL OR LARGER AND WINDS AT
LEAST 40 MPH WAS LOCATED OVER DELL AT 107 AM CDT...MOVING EAST AT 5
MPH.

PEOPLE IN MISSISSIPPI COUNTY...INCLUDING LOCATIONS NEAR
BLYTHEVILLE...GOSNELL AND LUXORA...SHOULD MONITOR THIS STORM CLOSELY.
THIS SIGNIFICANT WEATHER ALERT ALSO INCLUDES BIG LAKE.

&&

LAT...LON 3580 8978 3577 8981 3573 9009 3590 9017
      3600 8988 3600 8987
TIME...MOT...LOC 0607Z 250DEG 5KT 3585 9002

$$

The office that day

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

IssuedProductOfficeCountiesLasted
May 6, 11:28 PM CDTSpecial Weather StatementMEGMarshall62 min
May 7, 1:04 AM CDTFlash Flood WarningMEGAlcorn, Lee, Prentiss, Tippah, Tishomingo, Union3 hr
May 7, 10:33 AM CDTSpecial Weather StatementMEGLafayette27 min
May 7, 11:39 AM CDTSpecial Weather StatementMEGChickasaw, Pontotoc36 min
May 7, 11:54 AM CDTSpecial Weather StatementMEGLee21 min
May 7, 12:52 PM CDTSevere Thunderstorm WarningMEGMonroe19 min
May 6, 7:58 PM CDTSevere Thunderstorm WarningMEGLauderdale47 min
May 6, 9:40 PM CDTSpecial Weather StatementMEGTipton35 min
May 6, 9:49 PM CDTFlash Flood WarningMEGLauderdale3 hr
May 6, 10:35 PM CDTSpecial Weather StatementMEGShelby25 min
May 6, 11:01 PM CDTSpecial Weather StatementMEGFayette29 min
May 7, 1:52 AM CDTSpecial Weather StatementMEGLauderdale, Tipton38 min
May 7, 2:40 AM CDTFlash Flood WarningMEGLauderdale, Tipton3 hr
May 7, 5:39 AM CDTFlash Flood WarningMEGLauderdale, Tipton3 hr
May 6, 7:30 PM CDTSpecial Weather StatementMEGClay30 min
May 6, 7:33 PM CDTSpecial Weather StatementMEGGreene27 min
May 6, 7:44 PM CDTSpecial Weather StatementMEGMississippi31 min
May 6, 8:24 PM CDTSpecial Weather StatementMEGClay36 min
May 6, 8:44 PM CDTSpecial Weather StatementMEGMississippi31 min
May 6, 9:21 PM CDTSpecial Weather StatementMEGMississippi39 min
May 7, 1:11 AM CDTSpecial Weather StatementMEGClay34 min
May 7, 1:38 AM CDTSpecial Weather StatementMEGCross52 min
May 7, 1:41 AM CDTFlash Flood WarningMEGClay, Randolph3 hr
May 7, 4:57 AM CDTFlash Flood WarningMEGClay, Craighead, Greene, Randolph3 hr
May 7, 8:05 AM CDTFlash Flood WarningMEGClay, Craighead, Greene, Randolph115 min

Nearby

Special Weather Statements in Arkansas, 2012Every special weather statement 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.