Alert archive / Georgia / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 351, NWS Tallahassee, FL

July 23, 2015Berrien County, Lanier County, Georgia

NWS Tallahassee, FL issued this severe thunderstorm warning at Jul 23, 2015, 6:43 PM EDT for Berrien County, Lanier County, Georgia. It was in force for 47 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: Jul 23, 2015, 6:43 PM EDT (22:43 UTC)
Expired: Jul 23, 2015, 7:30 PM EDT
In force: 47 min
Issued by: NWS Tallahassee, FL
Area: Storm-based polygon

Counties Berrien County, GA, Lanier County, GA

The radar

The Moody AFB radar (KVAX), 36 km from the middle of the area, began a volume at 22:44 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 10.7 hours before the alert went out and 144 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: 921 J/kg
Mixed-layer CIN: -65 J/kg
Mixed-layer LCL: 945 m above ground
0-6 km bulk shear: 11 kt
0-1 km storm-relative helicity: -3 m²/s²
0-3 km storm-relative helicity: -20 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

149 
WUUS52 KTAE 232243
SVRTAE
GAC019-173-232330-
/O.NEW.KTAE.SV.W.0351.150723T2243Z-150723T2330Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TALLAHASSEE FL
643 PM EDT THU JUL 23 2015

THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  LANIER COUNTY IN SOUTH CENTRAL GEORGIA...
  EASTERN BERRIEN COUNTY IN SOUTH CENTRAL GEORGIA...

* UNTIL 730 PM EDT

* AT 643 PM EDT...THE NATIONAL WEATHER SERVICE HAS DETECTED A LINE OF
  SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE HAIL AND
  DAMAGING WINDS IN EXCESS OF 60 MPH. THESE STORMS WERE LOCATED ALONG
  A LINE EXTENDING FROM NEAR WILLACOOCHEE TO 8 MILES NORTH OF
  LAKELAND TO NEAR RAY CITY...AND MOVING EAST AT 25 MPH.

* LOCATIONS IMPACTED INCLUDE...
  LAKELAND...RAY CITY...MOODY AIR FORCE BASE...MEIGS...WEBER...
  GLORY...ALLENVILLE...BANNOCKBURN...COURTHOUSE...HANSELL AND
  TEETERVILLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOVE IMMEDIATELY INSIDE A STRONG BUILDING AND AWAY FROM WINDOWS UNTIL
THIS STORM PASSES.

&&

LAT...LON 3097 8318 3103 8318 3103 8326 3119 8322
      3139 8320 3140 8313 3139 8312 3136 8311
      3133 8306 3130 8306 3128 8304 3123 8305
      3119 8305 3118 8297 3096 8297
TIME...MOT...LOC 2243Z 265DEG 21KT 3128 8307 3116 8305 3104 8316 

$$

JLF

3 follow-up statements

378 
WWUS52 KTAE 232255
SVSTAE

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TALLAHASSEE FL
655 PM EDT THU JUL 23 2015

GAC019-173-232330-
/O.CON.KTAE.SV.W.0351.000000T0000Z-150723T2330Z/
LANIER GA-BERRIEN GA-
655 PM EDT THU JUL 23 2015

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 730 PM EDT
FOR LANIER AND EAST CENTRAL BERRIEN COUNTIES...

AT 655 PM EDT...DOPPLER RADAR INDICATED A LINE OF SEVERE
THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE HAIL AND DAMAGING
WINDS IN EXCESS OF 60 MPH. THESE STORMS WERE LOCATED ALONG A LINE
EXTENDING FROM NEAR WILLACOOCHEE TO 11 MILES SOUTHWEST OF PEARSON TO
LAKELAND...MOVING EAST AT 25 MPH.

LOCATIONS IMPACTED INCLUDE...
LAKELAND...MOODY AIR FORCE BASE...MEIGS...COURTHOUSE...HANSELL AND
BANNOCKBURN.

LAT...LON 3097 8318 3102 8316 3116 8313 3134 8309
      3133 8306 3130 8306 3128 8304 3123 8305
      3119 8305 3118 8297 3096 8297
TIME...MOT...LOC 2255Z 265DEG 21KT 3129 8299 3117 8297 3105 8308 

$$

JLF

771 
WWUS52 KTAE 232311
SVSTAE

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TALLAHASSEE FL
711 PM EDT THU JUL 23 2015

GAC019-232321-
/O.CAN.KTAE.SV.W.0351.000000T0000Z-150723T2330Z/
BERRIEN GA-
711 PM EDT THU JUL 23 2015

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL BERRIEN COUNTY IS
CANCELLED...

THE STORMS WHICH PROMPTED THE WARNING HAVE MOVED OUT OF THE WARNED 
AREA. THEREFORE THE WARNING HAS BEEN CANCELLED.

LAT...LON 3097 8312 3103 8308 3113 8305 3115 8305
      3115 8304 3118 8305 3118 8297 3096 8297
TIME...MOT...LOC 2311Z 265DEG 21KT 3130 8290 3118 8288 3106 8299 

$$

GAC173-232330-
/O.CON.KTAE.SV.W.0351.000000T0000Z-150723T2330Z/
LANIER GA-
711 PM EDT THU JUL 23 2015

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 730 PM EDT
FOR NORTHEASTERN LANIER COUNTY...

AT 711 PM EDT...DOPPLER RADAR INDICATED A LINE OF SEVERE
THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE HAIL AND DAMAGING
WINDS IN EXCESS OF 60 MPH. THESE STORMS WERE LOCATED ALONG A LINE
EXTENDING FROM NEAR PEARSON TO 9 MILES WEST OF COGDELL TO NEAR
LAKELAND...MOVING EAST AT 25 MPH.

LOCATIONS IMPACTED INCLUDE...
LAKELAND...COURTHOUSE AND HANSELL. 

LAT...LON 3097 8312 3103 8308 3113 8305 3115 8305
      3115 8304 3118 8305 3118 8297 3096 8297
TIME...MOT...LOC 2311Z 265DEG 21KT 3130 8290 3118 8288 3106 8299 

$$

JLF

939 
WWUS52 KTAE 232326
SVSTAE

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TALLAHASSEE FL
726 PM EDT THU JUL 23 2015

GAC173-232336-
/O.EXP.KTAE.SV.W.0351.000000T0000Z-150723T2330Z/
LANIER GA-
726 PM EDT THU JUL 23 2015

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN LANIER COUNTY
WILL EXPIRE AT 730 PM EDT...
    
THE STORMS WHICH PROMPTED THE WARNING HAVE MOVED OUT OF THE AREA.
THEREFORE THE WARNING WILL BE ALLOWED TO EXPIRE.

LAT...LON 3097 8312 3103 8308 3113 8305 3115 8305
      3115 8304 3118 8305 3118 8297 3096 8297
TIME...MOT...LOC 2323Z 265DEG 21KT 3130 8290 3118 8288 3106 8299 

$$

JLF

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 23, 3:40 PM EDT, 3 hours 3 minutes earlier.

Area forecast discussion, Jul 23, 3:40 PM EDT, 3 hours 3 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TALLAHASSEE FL
340 PM EDT THU JUL 23 2015

.Near Term [Through Tonight]...
Storms initiated as expected along a surface trough just north of
the Tri-State region and along the Panhandle seabreeze front. These
storms are quickly moving east in the westerly flow regime. Expect
these storms to consolidate into a larger more uniform area of
storms as they move east. Additionally, a complex of storms moving
through central AL/GA will drop into the region behind this initial
round of storms and last into the late evening. Based on the
evolution of storms thus far, there certainly is an low-end threat
for isolated to scattered severe wind gusts, though the threat seems
a bit lower than past days. Expect convection to remain mostly
offshore by midnight.

.Short Term [Friday Through Saturday Night]...
A weak frontal boundary will slowly move to the south over the
next couple of days as an area of low pressure develops off the
Southern States in the Western Atlantic. Deep layer moisture will
increase ahead of the frontal zone on Friday, resulting in
increased coverage of showers and thunderstorms, especially during
the afternoon hours. Some of the hi-res members indicate the
potential for some locally heavy rainfall across the Florida Big
Bend. At this point, amounts aren't heavy enough to justify a
flash flood watch, though this may become necessary if future ECAM
runs suggest an increasing flood threat on Friday.

By Saturday, as the area of low pressure slowly develops off the
Florida Coast in the Atlantic, drier air will begin to move in
from the Southern Appalachians into our region. This should
diminish rain chances across Southern Alabama and Georgia, with
afternoon storm activity focused more into the Florida Big Bend.
With less thunderstorm activity high temperatures across our
northern zones should be in the mid to upper 90s. The drier air
moving in should result in heat indices staying below heat
advisory critieria.

.Long Term [Sunday Through Thursday]...
Model guidance throughout the first part of the long term period
agrees that the area of low pressure off the Florida East coast
will remain nearly stationary through Monday before moving off to
the NE into the Atlantic on Tuesday. As a result, drier air will
continue to move into the region around the western side of this
low pressure area. This will result in lower than normal rain
chances through Tuesday across the forecast area. By Wednesday
with the low pressure area well removed from the region, deep
layer moisture will increase returning near normal rain chances to
the forecast.

&&

.Aviation...
[Through 18Z Friday] VFR will prevail outside of thunderstorms,
though if a storm impacts a station LIFR conditions and winds
around 30 knots will be possible. Only patchy fog is expected
tomorrow morning within an hour of sunrise and should remain MVFR.

&&

.Marine...
Moderate westerly flow will intensify through Friday with winds
reaching cautionary conditions at times Friday evening. The
gradient will weaken on Saturday night with a return to more
typical summertime winds expected by the first of the week.

&&

.Fire Weather...
The wet pattern will continue through the weekend, precluding any
hazardous fire weather conditions.

&&

.Hydrology...
There's some potential for heavy rainfall across the region on
Friday ahead of an approaching frontal boundary, with the greatest
threat focused into the Southeast Florida Big Bend. Only the
Steinhatchee River is running above normal at this time. With
widespread 1.5 to 3 inches of rain expected over the next 48
hours, only modest rises are anticipated on the smaller rivers in
the SE Florida Big Bend.

&&

.Preliminary Point Temps/PoPs...

Tallahassee   76  93  77  94  75 /  50  80  40  50  20
Panama City   80  91  77  92  78 /  40  70  40  40  20
Dothan        74  95  74  97  74 /  60  60  30  20  10
Albany        74  95  75  97  73 /  40  60  30  30  10
Valdosta      74  91  75  93  73 /  60  80  40  50  20
Cross City    76  90  77  92  75 /  50  80  50  60  30
Apalachicola  80  90  79  90  78 /  40  80  40  50  30

&&

.TAE WATCHES/WARNINGS/ADVISORIES...
FL...HEAT ADVISORY until 7 PM EDT /6 PM CDT/ this evening FOR Calhoun-
     Coastal Franklin-Coastal Gulf-Coastal Jefferson-Coastal
     Taylor-Coastal Wakulla-Gadsden-Inland Franklin-Inland Gulf-
     Inland Jefferson-Inland Taylor-Inland Wakulla-Jackson-Leon-
     Liberty-Madison.

     HIGH RIP CURRENT RISK until Midnight EDT tonight FOR Coastal
     Franklin.

GA...HEAT ADVISORY until 7 PM EDT this evening FOR Baker-Ben Hill-
     Berrien-Brooks-Colquitt-Cook-Decatur-Grady-Irwin-Lanier-
     Lowndes-Miller-Mitchell-Seminole-Thomas-Tift-Turner-Worth.

AL...NONE.
GM...NONE.
&&

NEAR TERM...HARRIGAN
SHORT TERM...GODSEY
LONG TERM...GODSEY
AVIATION...HARRIGAN
MARINE...GODSEY
FIRE WEATHER...HARRIGAN
HYDROLOGY...GODSEY

In the hours before

Special weather statement, Jul 23, 4:56 PM EDT, 1 hour 47 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TALLAHASSEE FL
456 PM EDT THU JUL 23 2015

GAZ127-145-146-232145-
WORTH GA-COLQUITT GA-MITCHELL GA-
456 PM EDT THU JUL 23 2015

...SIGNIFICANT WEATHER ADVISORY FOR EASTERN MITCHELL...SOUTHERN WORTH
AND COLQUITT COUNTIES UNTIL 545 PM EDT...

AT 456 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 7 MILES
SOUTHEAST OF PUTNEY TO 6 MILES EAST OF PELHAM...AND MOVING EAST AT 35
MPH.

WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH THESE STORMS.

LOCATIONS IMPACTED INCLUDE...
MOULTRIE...PELHAM...CAMILLA...OMEGA...NORMAN PARK...DOERUN...
RIVERSIDE...SCHLEY...FUNSTON...SALE CITY...COTTON...SOUTH MOULTRIE...
PINEBORO...NEW ELM...MOULTRIE MUNICIPAL A/P...TICKNOR...LESTER...
LIVINGSTON...CROSLAND AND HINSONTON.

LAT...LON 3145 8367 3143 8367 3143 8365 3133 8365
      3133 8358 3105 8368 3111 8417 3144 8408
      3144 8400 3146 8400
TIME...MOT...LOC 2056Z 283DEG 31KT 3142 8401 3115 8405

JLF

Local storm report, Jul 23, 5:43 PM EDT, 1 hour before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TALLAHASSEE FL
543 PM EDT THU JUL 23 2015

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

0355 PM     TSTM WND DMG     2 NE KILLEARN ESTATES   30.54N 84.20W
07/23/2015                   LEON               FL   UTILITY COMPANY

            LARGE TREE DOWN ON POWERLINE IN KILLEARN ACRES.

&&

GODSEY

Local storm report, Jul 23, 6:00 PM EDT, 43 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TALLAHASSEE FL
600 PM EDT THU JUL 23 2015

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

0544 PM     TSTM WND DMG     5 SE EUFAULA            31.85N 85.09W
07/23/2015                   QUITMAN            GA   UTILITY COMPANY

            TREE DOWN ON A POWERLINE SOUTH OF GEORGETOWN.

&&

GODSEY

Local storm report, Jul 23, 6:32 PM EDT, 11 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TALLAHASSEE FL
632 PM EDT THU JUL 23 2015

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

0515 PM     TSTM WND DMG     5 ENE WEST BAINBRIDGE   30.95N 84.51W
07/23/2015                   DECATUR            GA   911 CALL CENTER

            TREE DOWN ON POWERLINE.

0542 PM     TSTM WND DMG     3 NW CAIRO              30.91N 84.24W
07/23/2015                   GRADY              GA   911 CALL CENTER

            TREE DOWN IN THE ROAD.

&&

GODSEY

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 23, 3:03 AM EDT	Heat Advisory	TAE	Baker, Ben Hill, Berrien, Brooks, Colquitt, Cook and 12 more	16 hr
Jul 23, 3:07 PM EDT	Severe Thunderstorm Warning	TAE	Early	38 min
Jul 23, 3:41 PM EDT	Severe Thunderstorm Warning	TAE	Baker, Early	49 min
Jul 23, 4:56 PM EDT	Special Weather Statement	TAE	Colquitt	49 min
Jul 23, 5:07 PM EDT	Severe Thunderstorm Warning	TAE	Decatur, Grady	38 min
Jul 23, 5:22 PM EDT	Severe Thunderstorm Warning	TAE	Ben Hill	38 min
Jul 23, 5:36 PM EDT	Severe Thunderstorm Warning	TAE	Clay, Quitman	39 min
Jul 23, 5:52 PM EDT	Severe Thunderstorm Warning	TAE	Berrien, Cook	53 min

Nearby

Severe Thunderstorm Warnings in Georgia, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.