Alert archive / Alabama / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 407, NWS Tallahassee, FL

July 8, 2023Holmes County, Jackson County, Washington County, Florida; Clay County, Early County, Georgia; 5 counties in Alabama

NWS Tallahassee, FL issued this severe thunderstorm warning at Jul 8, 2023, 4:49 PM CDT for Holmes County, Jackson County, Washington County, Florida; Clay County, Early County, Georgia; 5 counties in Alabama. It was in force for 56 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
Jul 8, 2023, 4:49 PM CDT (21:49 UTC)
Expired
Jul 8, 2023, 5:45 PM CDT
In force
56 min
Issued by
NWS Tallahassee, FL
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Coffee County, AL, Dale County, AL, Geneva County, AL, Henry County, AL, Houston County, AL, Holmes County, FL, Jackson County, FL, Washington County, FL, Clay County, GA, Early County, GA

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 9.8 hours before the alert went out and 255 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 2023-07-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 685 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 12:00Z on 2023-07-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -6 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
685 J/kg
Mixed-layer CIN
-26 J/kg
Mixed-layer LCL
803 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
-6 m²/s²
0-3 km storm-relative helicity
5 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 Tallahassee, FL wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 8, 2:34 PM CDT, 2 hours 15 minutes earlier.

Area forecast discussion, Jul 8, 2:34 PM CDT, 2 hours 15 minutes before
Area Forecast Discussion
National Weather Service Tallahassee FL
334 PM EDT Sat Jul 8 2023

...New NEAR TERM, SHORT TERM, LONG TERM, AVIATION, MARINE, FIRE WEATHER, HYDROLOGY...

.NEAR TERM...
(Through Sunday)
Issued at 332 PM EDT Sat Jul 8 2023

Typical afternoon and evening showers and thunderstorms are forecast
for the rest of today. Precipitation chances should taper around or
shortly after sunset with dry weather and lows in the mid 70s
expected overnight. Tomorrow, a shortwave is forecast to approach
the area. Most guidance has the actual wave moving over the region
late in the day and into Monday morning. Prior to that it looks like
we should see more traditional po-pup showers and thunderstorms
during the afternoon. Model guidance still varies in convective
parameters, but gusty winds and heavy rain remain possible with any
storm that does develop. Highs for Sunday will generally be in the
low to mid 90s.

&&

.SHORT TERM...
(Sunday night through Monday night)
Issued at 332 PM EDT Sat Jul 8 2023

A trough and its associated frontal system look to move into the
southeast Sunday night into Monday. A shortwave rounding the base of
the trough looks to move some upper-level forcing across the region
throughout the overnight hours, however, support weakens with time.
Given elevated PWATs, over 2 inches, there is the potential for some
strong to severe weather, particularly across our SE AL and SW GA
counties. Although, it should be noted that forcing is better across
SE AL than it is across SW GA. The 850mb flow is around 20-30 knots
so kinematics are indicating a marginal potential for severe
weather.

Expect daytime highs generally in the upper 80s with overnight lows
generally in the low to mid 70s.

&&

.LONG TERM...
(Tuesday through Friday)
Issued at 332 PM EDT Sat Jul 8 2023

In the long term the aforementioned front becomes stationary,
current placement of this boundary is uncertain. Should the boundary
set up to the north of the area then the whole region may be under
unsettled weather throughout the long term. Should the boundary only
make it halfway through our region, like some models are suggesting,
then our Florida counties should expect to see higher activity
through the week than our SE AL and SW GA counties. This would be
due to a sharp PWAT gradient where our Florida counties have PWATs
between 1.5 and 2 inches, meanwhile our GA and AL counties are
generally less than 1.3 inches. Troughing lifts by Wednesday leaving
the southern tier of CONUS under broad ridging/somewhat zonal flow
aloft. This means our typical summertime regime will become
established, where our weather is determined by local diurnal
forcing mechanisms.

Expect daytime highs generally in the low to mid 90s with overnight
lows generally in the low to mid 70s.

&&

.AVIATION...
(18Z TAFS)
Issued at 332 PM EDT Sat Jul 8 2023

No major changes to the TAFs today as the best chances for rain
and thunderstorms appears to be over SE Al and the FL Panhandle.
If storms form over the site conditions could drop to MVFR or IFR,
with VFR conditions prevailing outside of storms. Tomorrow, there
will be another round of storms. Timing is still questionable but
storms could start to fire between 16-18Z. Didn't add any lines as
confidence was low.

&&

.MARINE...
Issued at 332 PM EDT Sat Jul 8 2023

An extended period of westerly winds will persist through the
period. Main concern will be the daily showers and thunderstorms
over the marine zones, which could cause locally elevated seas,
strong wind gusts, and non-supercell waterspouts, particularly
during the morning hours.

&&

.FIRE WEATHER...
Issued at 332 PM EDT Sat Jul 8 2023

Typical summer like weather is forecast, with daily shots of showers
and thunderstorms across the region. Heavy rain, gusty and erratic
winds, and lightning will be the threats with thunderstorms. Outside
of that, hot and humid conditions are forecast. Dispersions remain
high through the early evening hours and for much of the region on
Sunday.

&&

.HYDROLOGY...
Issued at 332 PM EDT Sat Jul 8 2023

There are elevated chances for widespread showers and thunderstorms
across the Tri-State area that could lead to possible localized
flash flooding and nuisance flooding over the next few days.
Riverine flooding is not expected.

&&

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not requested. However, spotters are always
encouraged to safely report significant weather conditions when they
occur by calling the office or tweeting us @NWSTallahassee.

&&

.PRELIMINARY POINT TEMPS/POPS...
Tallahassee   76  93  75  86 /  30  70  50  90
Panama City   79  91  76  87 /  30  70  70  90
Dothan        73  90  72  85 /  40  70  60  90
Albany        74  91  73  85 /  20  60  50  80
Valdosta      74  93  74  86 /  20  70  30  90
Cross City    77  93  77  89 /  30  70  40  90
Apalachicola  80  91  79  88 /  40  70  70  90

&&

.TAE WATCHES/WARNINGS/ADVISORIES...
FL...High Rip Current Risk until 1 AM EDT /midnight CDT/ Sunday for
     FLZ112-114.

GA...None.
AL...None.
GM...None.
&&

NEAR TERM...KR
SHORT TERM...Oliver
LONG TERM....Oliver
AVIATION...KR
MARINE...Oliver
FIRE WEATHER...KR
HYDROLOGY...Oliver

In the hours before

Special weather statement, Jul 8, 3:52 PM CDT, 57 minutes before
Special Weather Statement
National Weather Service Tallahassee FL
452 PM EDT Sat Jul 8 2023

FLZ028-029-082130-
Inland Taylor FL-Lafayette FL-
452 PM EDT Sat Jul 8 2023

...A strong thunderstorm will impact portions of southwestern
Lafayette and east central Taylor Counties through 530 PM EDT...

At 451 PM EDT, Doppler radar was tracking a strong thunderstorm 11
miles southeast of Perry, moving east at 15 mph.

HAZARD...Winds in excess of 40 mph and pea size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
Mayo, Pinland, Cooks Hammock, Athena, San Pedro Junction and
Fenholloway.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 3000 8355 3010 8351 3005 8315 2985 8323
TIME...MOT...LOC 2051Z 284DEG 15KT 3003 8342

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...40 MPH

JCW
Special weather statement, Jul 8, 4:09 PM CDT, 40 minutes before
Special Weather Statement
National Weather Service Tallahassee FL
409 PM CDT Sat Jul 8 2023

ALZ065-066-082200-
Dale AL-Coffee AL-
409 PM CDT Sat Jul 8 2023

...A strong thunderstorm will impact portions of northwestern Dale
and northeastern Coffee Counties through 500 PM CDT...

At 409 PM CDT, Doppler radar was tracking a strong thunderstorm 11
miles north of New Brockton, or 12 miles northwest of Fort Novosel,
moving east at 20 mph.

HAZARD...Wind gusts up to 50 mph and pea size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
Fort Novosel, Ozark, Newton, Ariton, Mixons Crossroads, Hunt Field,
Waterford, Dill, Hooper Stage Field, Mabson, Arguta, Ewell, Roeton,
Dale County Lake, Marley Hill, Clowers Crossroads, Phillips
Crossroads, Arcus, Hwy 231 Pea River Bridge and Java.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

&&

LAT...LON 3162 8596 3162 8553 3133 8559 3147 8600
TIME...MOT...LOC 2109Z 283DEG 16KT 3154 8590

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...50 MPH

JCW
Special weather statement, Jul 8, 4:14 PM CDT, 35 minutes before
Special Weather Statement
National Weather Service Tallahassee FL
414 PM CDT Sat Jul 8 2023

ALZ065-066-068-082200-
Dale AL-Coffee AL-Geneva AL-
414 PM CDT Sat Jul 8 2023

...A strong thunderstorm will impact portions of southwestern Dale,
southern Coffee and central Geneva Counties through 500 PM CDT...

At 413 PM CDT, Doppler radar was tracking a strong thunderstorm near
Opp, moving east at 35 mph.

HAZARD...Wind gusts up to 50 mph and pea size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
Daleville, Geneva, Enterprise, Hartford, Samson, Clayhatchee,
Kinston, Coffee Springs, Black, Chancellor, Perry Store, Kellys
Crossroads, Lytle, Lucile, Marl, Ino, Central City, Logan Field
Municipal A/P, Geneva Municipal A/P and Hendrix Crossroad.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

&&

LAT...LON 3125 8567 3120 8571 3119 8565 3100 8571
      3099 8584 3113 8619 3134 8620
TIME...MOT...LOC 2113Z 286DEG 31KT 3125 8621

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...50 MPH

JCW
Local storm report, Jul 8, 4:32 PM CDT, 17 minutes before
Preliminary Local Storm Report
National Weather Service Tallahassee FL
532 PM EDT Sat Jul 8 2023

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0523 PM     Tstm Wnd Gst     Kinston                 31.22N 86.17W
07/08/2023  M40 MPH          Coffee             AL   Mesonet

            Mesonet station 1401 Kinston.

&&
Special weather statement, Jul 8, 4:40 PM CDT, 9 minutes before
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Local storm report, Jul 8, 4:49 PM CDT, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jul 7, 8:47 PM CDTSpecial Weather StatementTAEDixie43 min
Jul 8, 2:06 AM CDTRip Current StatementTAEBay, Gulf22 hr
Jul 8, 8:22 AM CDTSpecial Marine WarningTAE38 min
Jul 8, 1:22 PM CDTSpecial Weather StatementTAEFranklin38 min
Jul 8, 2:05 PM CDTSpecial Weather StatementTAEGulf40 min
Jul 8, 2:17 PM CDTSevere Thunderstorm WarningTAEFranklin, Gulf, Liberty18 min
Jul 8, 3:36 PM CDTSpecial Weather StatementTAEWalton39 min
Jul 8, 3:52 PM CDTSpecial Weather StatementTAELafayette38 min
Jul 8, 4:40 PM CDTSpecial Weather StatementTAEWashington50 min
Jul 8, 5:42 PM CDTSevere Thunderstorm WarningTAEJackson52 min
Jul 8, 6:24 PM CDTSpecial Weather StatementTAEGadsden51 min
Jul 8, 6:33 PM CDTSpecial Weather StatementTAEHolmes42 min
Jul 8, 6:47 PM CDTSevere Thunderstorm WarningTAEGadsden, Leon, Liberty, Wakulla58 min
Jul 7, 7:44 PM CDTSpecial Weather StatementTAECoffee, Dale46 min
Jul 8, 4:09 PM CDTSpecial Weather StatementTAEDale51 min
Jul 8, 4:14 PM CDTSpecial Weather StatementTAEGeneva46 min
Jul 8, 4:17 PM CDTSevere Thunderstorm WarningTAECoffee, Geneva43 min
Jul 8, 4:27 PM CDTSevere Thunderstorm WarningTAECoffee, Dale48 min

Nearby

Severe Thunderstorm Warnings in Alabama, 2023Severe Thunderstorm Warnings in Florida, 2023Severe Thunderstorm Warnings in Georgia, 2023Every severe thunderstorm warning in 2023

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.