Alert archive / Alabama / Special Weather Statements in 2014

Special Weather Statement, NWS Huntsville, AL

June 20, 2014Lawrence County, Alabama

NWS Huntsville, AL issued this special weather statement at Jun 20, 2014, 1:48 PM CDT for Lawrence County, Alabama. It was in force for 42 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
Jun 20, 2014, 1:48 PM CDT (18:48 UTC)
Expired
Jun 20, 2014, 2:30 PM CDT
In force
42 min
Issued by
NWS Huntsville, AL

County Lawrence County, AL

The radar

The Northeast Alabama radar (KHTX), 119 km from the middle of the area, began a volume at 18:49 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

Nashville Metro, TN (KBNA), launched 12:00Z, 6.8 hours before the alert went out and 165 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, Nashville Metro, TN at 12:00Z on 2014-06-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 987 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, Nashville Metro, TN at 12:00Z on 2014-06-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -2 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
987 J/kg
Mixed-layer CIN
-36 J/kg
Mixed-layer LCL
1098 m above ground
0-6 km bulk shear
7 kt
0-1 km storm-relative helicity
-2 m²/s²
0-3 km storm-relative helicity
-3 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.

856 
WWUS84 KHUN 201848
SPSHUN

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HUNTSVILLE AL
148 PM CDT FRI JUN 20 2014
 
ALZ001-002-004-201930-
LAUDERDALE AL-LAWRENCE AL-COLBERT AL-
148 PM CDT FRI JUN 20 2014

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN LAUDERDALE...
NORTHWESTERN LAWRENCE AND EAST CENTRAL COLBERT COUNTIES UNTIL 230 PM
CDT...

AT 147 PM CDT...DOPPLER RADAR INDICATED A STRONG THUNDERSTORM OVER 
LEIGHTON...OR 8 MILES EAST OF MUSCLE SHOALS...MOVING SOUTHEAST AT 20 
MPH.

PEA SIZE HAIL AND WINDS IN EXCESS OF 30 MPH WILL BE POSSIBLE WITH
THIS STORM.

LOCATIONS IMPACTED INCLUDE...
ROGERSVILLE...TOWN CREEK...LEIGHTON...COURTLAND...ANDERSON...
WHITEHEAD...FORD CITY...ELGIN...RED BANK AND NE SMITH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

LOCALLY HEAVY RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY
LEAD TO MINOR FLOODING ON ROADS AND IN LOW LYING AREAS. DO NOT DRIVE
YOUR VEHICLE THROUGH FLOODED ROADWAYS.

&&

LAT...LON 3492 8721 3455 8738 3464 8756 3474 8760
      3495 8730
TIME...MOT...LOC 1847Z 259DEG 12KT 3473 8751 

$$

TT

The office that day

Everything else NWS Huntsville, AL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 20, 1:36 PM CDTSpecial Weather StatementHUNLawrence, Limestone39 min
Jun 20, 2:15 PM CDTSpecial Weather StatementHUNLimestone45 min
Jun 20, 2:28 PM CDTSpecial Weather StatementHUNLimestone47 min
Jun 20, 2:40 PM CDTSpecial Weather StatementHUNMorgan50 min
Jun 20, 3:48 PM CDTSpecial Weather StatementHUNJackson27 min
Jun 20, 3:59 PM CDTSevere Thunderstorm WarningHUNJackson31 min
Jun 20, 4:30 PM CDTSpecial Weather StatementHUNJackson30 min
Jun 20, 4:34 PM CDTSpecial Weather StatementHUNCullman41 min
Jun 20, 4:47 PM CDTSevere Thunderstorm WarningHUNCullman28 min
Jun 20, 5:15 PM CDTSpecial Weather StatementHUNCullman45 min
Jun 20, 2:54 PM CDTSpecial Weather StatementHUNLincoln51 min
Jun 20, 3:35 PM CDTSpecial Weather StatementHUNMoore25 min

Nearby

Special Weather Statements in Alabama, 2014Every special weather statement in 2014

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.