Alert archive / Alabama / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 106, NWS Huntsville, AL

October 6, 2014Cullman County, Alabama

NWS Huntsville, AL issued this severe thunderstorm warning at Oct 6, 2014, 4:55 PM CDT for Cullman County, Alabama. It was in force for 50 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Oct 6, 2014, 4:55 PM CDT (21:55 UTC)
Expired
Oct 6, 2014, 5:45 PM CDT
In force
50 min
Issued by
NWS Huntsville, AL
Area
Storm-based polygon

County Cullman County, AL

The radar

The Birmingham radar (KBMX), 107 km from the middle of the area, began a volume at 21:57 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 12:00Z, 9.9 hours before the alert went out and 106 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 12:00Z on 2014-10-06Temperature 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°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Birmingham, AL at 12:00Z on 2014-10-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 150 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1252 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
150 m²/s²
0-3 km storm-relative helicity
133 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Huntsville, AL wrote its last area forecast discussion before this severe thunderstorm warning went out at Oct 6, 4:24 PM CDT, 31 minutes earlier.

Area forecast discussion, Oct 6, 4:24 PM CDT, 31 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HUNTSVILLE AL
424 PM CDT MON OCT 6 2014

.DISCUSSION...
THE LARGE TROUGH IS STILL IN PLACE OVER TWO THIRDS OF THE CONUS AND
WILL CONTINUE TO BE THE WEATHER MAKER OVER THE NEXT FEW DAYS AS
DISTURBANCES ROUND OUT THROUGH THE BASE. THIS MORNINGS ROUND OF
SHOWERS AND THUNDERSTORMS LEFT CLOUDY SKIES ACROSS THE TN VALLEY
THROUGH THIS AFTN. THIS PROCEEDED TO LIMIT OUR INSTABILITY AND
DAYTIME HEATING...PREVENTING STORMS FROM OCCUR EARLIER THIS
AFTERNOON. SHEAR IS STILL PRESENT FOR THE STORMS LATE AFTN/EVENING
WITH 40KTS 0-6KM...BUT CAPE BECOMES MORE ELEVATED AFTER 00Z. SHOWERS
AND THUNDERSTORMS MAY LINGER INTO THE OVERNIGHT HOURS.

AFTER THIS BATCH OF STORMS...THE TROUGH STAYS IN PLACE ALLOWING MORE
SHORTWAVES TO MOVE THROUGH THE AREA. TOMORROW WILL SEE ANOTHER ROUND
OF SHOWERS AND THUNDERSTORMS. THE COLD FRONT CURRENTLY IN PLACE OVER
THE BOOTHEEL OF MO AND NORTH AR WILL WASHOUT BEFORE IT GETS TO
AL...BUT THIS WILL ONLY BE REPLACED BY ANOTHER COLD FRONT ON WED THAT
WILL HAVE DRIER AIR BEHIND IT...THUS A DRIER FORECAST. AS THE SFC
HIGH MOVES EAST OUT OF THE AREA ON THURS...SOUTHERLY FLOW AND
MOISTURE WILL RETURN. ADDED PRECIP BACK IN ON THURS FROM WEST TO EAST
AS ANOTHER SHORT WAVE MOVES IN ALONG NEARLY ZONAL FLOW AHEAD OF
ANOTHER COLD FRONT. THIS FRONT WILL ALSO WASH OUT IN THE TN VALLEY
LEAVING PRECIP CHANCES IN FOR FRIDAY AND SATURDAY. CONDITIONS WILL
REMAIN UNSETTLED SUNDAY INTO THE BEGINNING OF THE WORK WEEK. AS FOR
THE TEMPS...WE ARE EXPECTING NO MAJOR COOL DOWNS LIKE WE HAVE
EXPERIENCED THIS PAST WEEK. TEMPS ARE EXPECTED TO STAY AT NORMAL OR
JUST ABOVE THROUGHOUT THE FORECAST PERIOD WITH LOW 80S FOR THE HIGHS
AND UPPER 50S TO LOWER 60S FOR THE OVERNIGHT LOWS.

JMS

&&

.AVIATION...
/ISSUED 1258 PM CDT MON OCT 6 2014/
FOR 18Z TAFS...VFR CONDS PREVAIL FOR NOW...EVEN WITH MID/HIGH CLOUDS
STREAMING INTO THE AREA FROM THE SW AHEAD OF AN ONCOMING COLD FRONT.
SOME -RA/SHRA ARE ALSO DEVELOPING ACROSS PARTS OF THE AREA...MOST
LIKELY IN RESPONSE TO DAYTIME HEATING. THE STRONGER SHRA/TSRA MAY NOT
DEVELOP/MOVE EWD INTO THE AREA ALONG/WELL AHEAD OF THE FRONT UNTIL
THE LATE AFTERNOON/EVENING HRS. PRECIP WILL MOST LIKELY LINGER INTO
THE DAYTIME HRS TUE...BEFORE SLIGHTLY DRIER LOW/MID LEVEL AIR OUT OF
THE W/NW BEGINS TO GRADUALLY OVERSPREAD THE AREA.

09

&&

.PRELIMINARY POINT TEMPS/POPS...
HUNTSVILLE    59  78  60  81 /  70  60  40  10
SHOALS        60  79  60  83 /  70  50  40  10
VINEMONT      59  78  60  81 /  70  50  30  10
FAYETTEVILLE  57  77  57  80 /  70  60  50  10
ALBERTVILLE   57  79  59  82 /  70  60  30  10
FORT PAYNE    58  77  59  81 /  70  60  30  10

&&

.HUN WATCHES/WARNINGS/ADVISORIES...
AL...NONE.
TN...NONE.
&&

FOR MORE INFORMATION PLEASE VISIT OUR WEBSITE
AT WEATHER.GOV/HUNTSVILLE.
Hazardous weather outlook, Oct 6, 4:37 PM CDT, 18 minutes before
HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE HUNTSVILLE AL
437 PM CDT MON OCT 6 2014

ALZ001>010-016-TNZ076-096-097-071030-
LAUDERDALE-COLBERT-FRANKLIN AL-LAWRENCE-LIMESTONE-MADISON-MORGAN-
MARSHALL-JACKSON-DEKALB-CULLMAN-MOORE-LINCOLN-FRANKLIN TN-
437 PM CDT MON OCT 6 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH ALABAMA AND PORTIONS
OF SOUTHERN MIDDLE TENNESSEE.

.DAY ONE...TONIGHT...

THROUGH 7 PM...SHOWERS AND THUNDERSTORMS WILL CONTINUE TO TRACK EAST
ACROSS PORTIONS OF NORTH ALABAMA. LOCALLY HEAVY RAIN...CLOUD TO
GROUND LIGHTNING...GUSTY WINDS TO 35 MPH AND SMALL HAIL WILL BE THE
PRIMARY THREATS. HOWEVER...ISOLATED STRONG TO SEVERE STORMS WILL BE
POSSIBLE...CAPABLE OF PRODUCING HAIL TO AROUND 1 INCH AND BRIEF WIND
GUSTS TO 60 MPH.

ADDITIONAL SHOWERS AND THUNDERSTORMS ARE POSSIBLE THIS EVENING INTO
THE OVERNIGHT HOURS.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY...

SCATTERED TO NUMEROUS THUNDERSTORMS ARE EXPECTED TO LINGER INTO
TUESDAY...AS AN UPPER LEVEL STORM SYSTEM SLOWLY MOVES EAST. THE
PRIMARY THREATS WILL BE STRONG GUSTY WINDS UP TO 50 MPH AND HAIL.

A COLD FRONT WILL THEN APPROACH THE AREA FROM THE NORTHWEST BETWEEN
THURSDAY AND SUNDAY...WITH A CHANCE OF THUNDERSTORMS POSSIBLE. HEAVY
RAINFALL AND GUSTY WINDS WILL BE THE PRIMARY THREATS.

.SPOTTER CALL TO ACTION STATEMENT...

ACTIVATION OF STORM SPOTTERS AND EMERGENCY MANAGEMENT PERSONNEL IS
NOT EXPECTED AT THIS TIME. HOWEVER...SPOTTERS ARE ENCOURAGED TO
REPORT ANY HAIL...STRONG WINDS OR DAMAGE ASSOCIATED WITH THE STORMS.

DJN

In the hours before

Special weather statement, Oct 6, 3:26 PM CDT, 1 hour 29 minutes before
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Special weather statement, Oct 6, 3:43 PM CDT, 1 hour 12 minutes before
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Special weather statement, Oct 6, 3:49 PM CDT, 1 hour 6 minutes before
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Special weather statement, Oct 6, 4:16 PM CDT, 39 minutes before
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Special weather statement, Oct 6, 4:25 PM CDT, 30 minutes before
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Special weather statement, Oct 6, 4:44 PM CDT, 11 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Oct 6, 3:26 PM CDTSpecial Weather StatementHUNLimestone34 min
Oct 6, 3:43 PM CDTSpecial Weather StatementHUNFranklin32 min
Oct 6, 3:49 PM CDTSpecial Weather StatementHUNLawrence26 min
Oct 6, 4:03 PM CDTSevere Thunderstorm WarningHUNLawrence, Limestone, Morgan27 min
Oct 6, 4:16 PM CDTSpecial Weather StatementHUNMadison29 min
Oct 6, 4:25 PM CDTSpecial Weather StatementHUNLimestone35 min
Oct 6, 4:58 PM CDTSpecial Weather StatementHUNMadison47 min
Oct 6, 5:34 PM CDTSpecial Weather StatementHUNCullman41 min
Oct 6, 5:35 PM CDTSpecial Weather StatementHUNJackson25 min
Oct 6, 5:42 PM CDTSevere Thunderstorm WarningHUNCullman33 min
Oct 6, 5:44 PM CDTSevere Thunderstorm WarningHUNCullman, Marshall, Morgan20 min
Oct 6, 5:48 PM CDTSevere Thunderstorm WarningHUNJackson27 min
Oct 6, 6:10 PM CDTSpecial Weather StatementHUNFranklin35 min
Oct 6, 6:11 PM CDTSevere Thunderstorm WarningHUNCullman34 min
Oct 6, 6:14 PM CDTSevere Thunderstorm WarningHUNJackson46 min
Oct 6, 6:26 PM CDTSpecial Weather StatementHUNMarshall49 min
Oct 6, 6:35 PM CDTSevere Thunderstorm WarningHUNColbert, Franklin25 min
Oct 6, 6:38 PM CDTSevere Thunderstorm WarningHUNFranklin37 min
Oct 6, 6:52 PM CDTSevere Thunderstorm WarningHUNDeKalb8 min
Oct 6, 4:44 PM CDTSpecial Weather StatementHUNFranklin46 min
Oct 6, 5:54 PM CDTSpecial Weather StatementHUNFranklin36 min

Nearby

Severe Thunderstorm Warnings in Alabama, 2014Every severe thunderstorm warning 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.