Alert archive / Alabama / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 434, NWS Tallahassee, FL

August 21, 2015Houston County, Alabama

NWS Tallahassee, FL issued this severe thunderstorm warning at Aug 21, 2015, 7:02 PM CDT for Houston County, Alabama. It was in force for 28 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 21, 2015, 7:02 PM CDT (00:02 UTC)
Expired: Aug 21, 2015, 7:30 PM CDT
In force: 28 min
Issued by: NWS Tallahassee, FL
Area: Storm-based polygon

County Houston County, AL

The radar

The Ft Rucker radar (KEOX), 37 km from the middle of the area, began a volume at 00:04 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.

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 Tallahassee, FL wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 21, 2:58 PM CDT, 4 hours 4 minutes earlier.

Area forecast discussion, Aug 21, 2:58 PM CDT, 4 hours 4 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TALLAHASSEE FL
358 PM EDT FRI AUG 21 2015

.Near Term [Through Tonight]...
Scattered afternoon storms are likely to dissipate quickly after
sunset this evening. Prior to sunset, a couple of stronger storms
remain possible given steeper than average mid-level lapse rates
and CAPE values around 3000 j/kg. The highest coverage of storms
this afternoon is still expected to be across the western part of
the forecast area. Overnight lows in the mid to upper 70s are
expected.

.Short Term [Saturday Through Sunday Night]...
Upper ridge centered over the Gulf of Mexico will limit rain
chances and push temperatures into the upper 90s on Saturday.
Dewpoints in the lower to mid 70s will push heat index values to
near Heat Advisory levels during the afternoon. The upper ridge
will weaken on Sunday as a weak trough digs into the southeastern
states. Temperatures will remain hot, but there should be a few
more afternoon thunderstorms around than on Saturday.

.Long Term [Monday Through Friday]...
For much of the extended period, an upper trough is forecast to be
in place along the eastern seaboard, with a front dropping into
the forecast area late Monday before stalling on Tuesday. This
boundary is expected to roughly bisect the area keeping higher
rain chances over the eastern half and lower rain chances over the
western half.

&&

.Aviation...
[Through 18Z Saturday] Mainly VFR conditions are expected outside
of scattered afternoon storms. A brief period of MVFR conditions
is possible around dawn.

&&

.Marine...
High pressure over the waters will keep winds and seas low into
next week.

&&

.Fire Weather...
With high pressure in place, dispersions will be low through
Saturday. Hot, humid summertime conditions will persist through
the period.

&&

.Hydrology...
Rain chances will be on the decline into the weekend. Drier
conditions from Saturday and into much of next week will prevent
any flood concerns.

&&

.Preliminary Point Temps/PoPs...

Tallahassee   76  98  75  96  74 /  20  30  10  40  20
Panama City   79  92  78  92  77 /  10  20  10  30  20
Dothan        75  95  75  95  74 /  20  30  10  40  20
Albany        76  96  75  95  74 /  10  30  20  40  20
Valdosta      76  97  75  96  73 /  20  30  20  40  20
Cross City    77  97  75  94  74 /  10  30  20  40  20
Apalachicola  78  94  78  93  77 /  10  20  10  30  20

&&

.TAE WATCHES/WARNINGS/ADVISORIES...
FL...NONE.
GA...NONE.
AL...NONE.
GM...NONE.
&&

NEAR TERM...DVD
SHORT TERM...CAMP
LONG TERM...CAMP
AVIATION...DVD
MARINE...CAMP
FIRE WEATHER...LAMERS
HYDROLOGY...CAMP/GODSEY

In the hours before

Local storm report, Aug 21, 6:41 PM CDT, 21 minutes before

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Local storm report, Aug 21, 6:43 PM CDT, 19 minutes before

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Local storm report, Aug 21, 6:44 PM CDT, 18 minutes before

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Special weather statement, Aug 21, 6:48 PM CDT, 14 minutes before

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Local storm report, Aug 21, 6:51 PM CDT, 11 minutes before

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Special weather statement, Aug 21, 6:54 PM CDT, 8 minutes before

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The office that day

Everything else NWS Tallahassee, FL issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 22, 6:00 PM CDT	Special Weather Statement	TAE	Lafayette	45 min

Nearby

Severe Thunderstorm Warnings in Alabama, 2015 Every severe thunderstorm warning in 2015

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.