Alert archive / Alabama / Special Weather Statements in 2014

Special Weather Statement, NWS Huntsville, AL

October 13, 2014DeKalb County, Jackson County, Alabama

NWS Huntsville, AL issued this special weather statement at Oct 13, 2014, 11:07 PM CDT for DeKalb County, Jackson County, Alabama. It was in force for 38 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
Oct 13, 2014, 11:07 PM CDT (04:07 UTC)
Expired
Oct 13, 2014, 11:45 PM CDT
In force
38 min
Issued by
NWS Huntsville, AL

Counties DeKalb County, AL, Jackson County, AL

The radar

The Northeast Alabama radar (KHTX), 69 km from the middle of the area, began a volume at 04:10 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

Birmingham, AL (KBMX), launched 00:00Z, 4.1 hours before the alert went out and 151 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, Birmingham, AL at 00:00Z on 2014-10-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 880 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, Birmingham, AL at 00:00Z on 2014-10-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 338 square meters per square second.19395878Sfc1 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
880 J/kg
Mixed-layer CIN
-16 J/kg
Mixed-layer LCL
710 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
338 m²/s²
0-3 km storm-relative helicity
406 m²/s²
Significant tornado parameter
1.9
Supercell composite
13.0

Open this sounding in Storm Lab

The text

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

316 
WWUS84 KHUN 140407
SPSHUN

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HUNTSVILLE AL
1107 PM CDT MON OCT 13 2014
 
ALZ008>010-140445-
MARSHALL AL-DE KALB AL-JACKSON AL-
1107 PM CDT MON OCT 13 2014

...SIGNIFICANT WEATHER ADVISORY FOR EASTERN MARSHALL...SOUTHWESTERN
DE KALB AND CENTRAL JACKSON COUNTIES UNTIL 1145 PM CDT...

AT 1106 PM CDT...DOPPLER RADAR INDICATED A LINE OF STRONG
THUNDERSTORMS ALONG A LINE EXTENDING FROM 7 MILES SOUTH OF SKYLINE TO
BOAZ...AND MOVING EAST AT 30 MPH.

WIND GUSTS UP TO 50 MPH WILL BE POSSIBLE WITH THESE STORMS.

LOCATIONS IMPACTED INCLUDE...
ALBERTVILLE...SCOTTSBORO...FORT PAYNE...BOAZ...RAINSVILLE...
HENAGAR...COLLINSVILLE...CROSSVILLE...SYLVANIA AND FYFFE.

THESE STORMS MAY INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL RADIO AND
TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS...FOR ADDITIONAL
INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE.

LAT...LON 3427 8576 3426 8577 3426 8581 3424 8581
      3424 8584 3420 8585 3420 8611 3419 8611
      3418 8619 3474 8619 3485 8573
TIME...MOT...LOC 0406Z 263DEG 24KT 3472 8615 3418 8617 

$$

BCC

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 13, 7:17 PM CDTSpecial Weather StatementHUNColbert, Lauderdale, Lawrence43 min
Oct 13, 7:24 PM CDTTornado WarningHUNColbert, Lauderdale17 min
Oct 13, 7:42 PM CDTSevere Thunderstorm WarningHUNColbert, Lawrence33 min
Oct 13, 7:50 PM CDTTornado WarningHUNColbert, Lawrence25 min
Oct 13, 8:06 PM CDTTornado WarningHUNLauderdale, Lawrence, Limestone24 min
Oct 13, 8:30 PM CDTSpecial Weather StatementHUNLimestone, Morgan30 min
Oct 13, 8:36 PM CDTSpecial Weather StatementHUNCullman39 min
Oct 13, 8:47 PM CDTSevere Thunderstorm WarningHUNLawrence, Morgan28 min
Oct 13, 8:58 PM CDTSpecial Weather StatementHUNCullman32 min
Oct 13, 9:22 PM CDTSpecial Weather StatementHUNMadison, Morgan23 min
Oct 13, 9:40 PM CDTSpecial Weather StatementHUNMadison35 min
Oct 13, 9:59 PM CDTFlash Flood WarningHUNLimestone4 hr
Oct 13, 10:04 PM CDTSpecial Weather StatementHUNMarshall41 min
Oct 13, 10:23 PM CDTSevere Thunderstorm WarningHUNJackson, Madison, Marshall37 min
Oct 13, 11:43 PM CDTSpecial Weather StatementHUNDeKalb47 min
Oct 14, 12:32 AM CDTSevere Thunderstorm WarningHUNDeKalb28 min
Oct 14, 1:12 AM CDTFlash Flood WarningHUNDeKalb, Jackson3 hr
Oct 14, 2:00 AM CDTAreal Flood WarningHUNLimestone, Madison, Morgan3 hr
Oct 14, 3:57 AM CDTAreal Flood WarningHUNDeKalb, Jackson6 hr
Oct 14, 5:34 AM CDTSpecial Weather StatementHUNMadison41 min
Oct 14, 5:56 AM CDTAreal Flood WarningHUNMadison3 hr
Oct 14, 6:17 AM CDTSpecial Weather StatementHUNJackson43 min
Oct 13, 10:03 PM CDTFlash Flood WarningHUNLincoln4 hr
Oct 14, 6:14 AM CDTSpecial Weather StatementHUNFranklin46 min
Oct 14, 6:26 AM CDTSevere Thunderstorm WarningHUNFranklin34 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.