Alert archive / Alabama / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 59, NWS Huntsville, AL

August 28, 2016Jackson County, Alabama

NWS Huntsville, AL issued this severe thunderstorm warning at Aug 28, 2016, 3:56 PM CDT for Jackson County, Alabama. It was in force for 34 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: Aug 28, 2016, 3:56 PM CDT (20:56 UTC)
Expired: Aug 28, 2016, 4:30 PM CDT
In force: 34 min
Issued by: NWS Huntsville, AL
Area: Storm-based polygon
Hail: 0.88 in
Wind: 60.0 mph

County Jackson County, AL

The radar

The Northeast Alabama radar (KHTX), 19 km from the middle of the area, began a volume at 20:58 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, 8.9 hours before the alert went out and 160 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1228 J/kg
Mixed-layer CIN: -81 J/kg
Mixed-layer LCL: 1362 m above ground
0-6 km bulk shear: 5 kt
0-1 km storm-relative helicity: -24 m²/s²
0-3 km storm-relative helicity: -10 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 Aug 28, 2:29 PM CDT, 1 hour 27 minutes earlier.

Area forecast discussion, Aug 28, 2:29 PM CDT, 1 hour 27 minutes before

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Hazardous weather outlook, Aug 28, 1:50 PM CDT, 2 hours 6 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE HUNTSVILLE AL
150 PM CDT SUN AUG 28 2016

ALZ001>010-016-TNZ076-096-097-291000-
LAUDERDALE-COLBERT-FRANKLIN AL-LAWRENCE-LIMESTONE-MADISON-MORGAN-
MARSHALL-JACKSON-DE KALB-CULLMAN-MOORE-LINCOLN-FRANKLIN TN-
150 PM CDT SUN AUG 28 2016

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

.DAY ONE...TONIGHT...

SCATTERED STRONG AFTERNOON AND EVENING SHOWERS AND THUNDERSTORMS ARE
EXPECTED WITH BEST CHANCES IN NORTHEAST ALABAMA AND SOUTHERN MIDDLE
TENNESSEE. MAIN IMPACTS WILL BE VERY HEAVY RAINFALL...GUSTY WINDS UP
TO 50 MPH AND FREQUENT LIGHTNING.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY...

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW.

ISOLATED AFTERNOON THUNDERSTORMS ARE POSSIBLE AGAIN ON MONDAY.

ISOLATED AFTERNOON THUNDERSTORMS RETURN ON WEDNESDAY AND CONTINUE
THROUGH THE WEEKEND.

.SPOTTER CALL TO ACTION STATEMENT...

ACTIVATION OF STORM SPOTTERS AND EMERGENCY MANAGEMENT PERSONNEL
IS NOT ANTICIPATED AT THIS TIME.

In the hours before

Special weather statement, Aug 28, 3:33 PM CDT, 23 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HUNTSVILLE AL
333 PM CDT SUN AUG 28 2016

ALZ009-010-282100-
DE KALB AL-JACKSON AL-
333 PM CDT SUN AUG 28 2016

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN DE KALB AND EAST
CENTRAL JACKSON COUNTIES UNTIL 400 PM CDT...

AT 332 PM CDT...DOPPLER RADAR INDICATED A STRONG THUNDERSTORM 7 MILES
SOUTHEAST OF HENAGAR...OR 7 MILES NORTHEAST OF FORT PAYNE...MOVING
WEST AT 10 MPH. ADDITIONAL STRONG THUNDERSTORMS WERE LOCATED NEAR
SULPHUR SPRINGS AND MENTONE...ALSO MOVING WEST AT 10 MPH.

PEA SIZE HAIL AND WIND GUSTS UP TO 50 MPH WILL BE POSSIBLE WITH
THESE STORMS.

LOCATIONS IMPACTED INCLUDE...
FORT PAYNE...RAINSVILLE...HENAGAR...SYLVANIA...IDER...PISGAH...
VALLEY HEAD...HAMMONDVILLE...MENTONE AND ROSALIE.

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 3450 8556 3447 8585 3480 8583 3474 8556
      3468 8555
TIME...MOT...LOC 2032Z 093DEG 7KT 3455 8566

BCC

Special weather statement, Aug 28, 3:50 PM CDT, 6 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HUNTSVILLE AL
350 PM CDT SUN AUG 28 2016

ALZ009-282115-
JACKSON AL-
350 PM CDT SUN AUG 28 2016

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN JACKSON COUNTY UNTIL
415 PM CDT...

AT 349 PM CDT...DOPPLER RADAR INDICATED A STRONG THUNDERSTORM NEAR
BRIDGEPORT...MOVING WEST AT 10 MPH.

PENNY SIZE HAIL AND WIND GUSTS UP TO 50 MPH WILL BE POSSIBLE WITH
THIS STORM.

LOCATIONS IMPACTED INCLUDE...
BRIDGEPORT...SOUTH PITTSBURG...STEVENSON...ORME...FABIUS...
RUSSELL CAVE NATIONAL MONUMENT...BASS...FACKLER...
LONG ISLAND AND NEW HOPE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS STORM 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.

IF ON OR NEAR NORTHERN LAKE GUNTERSVILLE...GET OUT OF THE WATER AND
MOVE INDOORS OR INSIDE A VEHICLE. REMEMBER...LIGHTNING CAN STRIKE
OUT TO 15 MILES FROM THE PARENT THUNDERSTORM. IF YOU CAN HEAR
THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. MOVE TO
SAFE SHELTER NOW.
DO NOT BE CAUGHT ON THE WATER IN A THUNDERSTORM.

&&

LAT...LON 3481 8564 3475 8593 3499 8595 3499 8564
      3482 8563
TIME...MOT...LOC 2049Z 088DEG 10KT 3490 8573

BCC

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 28, 3:33 PM CDT	Special Weather Statement	HUN	DeKalb	27 min
Aug 28, 3:50 PM CDT	Special Weather Statement	HUN	Jackson	25 min
Aug 28, 4:34 PM CDT	Special Weather Statement	HUN	Jackson	26 min
Aug 28, 5:01 PM CDT	Special Weather Statement	HUN	Marshall	29 min
Aug 28, 5:23 PM CDT	Special Weather Statement	HUN	Madison	37 min
Aug 28, 5:29 PM CDT	Special Weather Statement	HUN	Marshall	31 min
Aug 28, 5:48 PM CDT	Special Weather Statement	HUN	Madison	27 min
Aug 28, 6:15 PM CDT	Special Weather Statement	HUN	Morgan	30 min
Aug 28, 4:32 PM CDT	Special Weather Statement	HUN	Franklin	28 min
Aug 28, 5:32 PM CDT	Special Weather Statement	HUN	Franklin	28 min

Nearby

Severe Thunderstorm Warnings in Alabama, 2016 Every severe thunderstorm warning in 2016

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.