Alert archive / Georgia / Special Weather Statements in 2017

Special Weather Statement, NWS Tallahassee, FL

July 26, 2017Clay County, Early County, Georgia

NWS Tallahassee, FL issued this special weather statement at Jul 26, 2017, 4:01 PM EDT for Clay County, Early County, Georgia. It was in force for 44 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 26, 2017, 4:01 PM EDT (20:01 UTC)
Expired
Jul 26, 2017, 4:45 PM EDT
In force
44 min
Issued by
NWS Tallahassee, FL

Counties Clay County, GA, Early County, GA

The radar

The Ft Rucker radar (KEOX), 48 km from the middle of the area, began a volume at 20:03 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

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 8.0 hours before the alert went out and 206 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, Peachtre/Fal Fld, GA at 12:00Z on 2017-07-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 752 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, Peachtre/Fal Fld, GA at 12:00Z on 2017-07-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 32 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
752 J/kg
Mixed-layer CIN
-74 J/kg
Mixed-layer LCL
1155 m above ground
0-6 km bulk shear
12 kt
0-1 km storm-relative helicity
32 m²/s²
0-3 km storm-relative helicity
42 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Jul 26, 3:01 PM EDT, 1 hour earlier.

Area forecast discussion, Jul 26, 3:01 PM EDT, 1 hour before
Area Forecast Discussion
National Weather Service Tallahassee FL
301 PM EDT Wed Jul 26 2017

.NEAR TERM [Through Tonight]...

An upper level shortwave near the Georgia coast will persist through
the near term. An MCV rotating over southeast Georgia this afternoon
will help to generate scattered to numerous showers and
thunderstorms particularly in a stretch from TLH to VLD (higher
chances near VLD). Convection will be on a diminishing trend after
00z with the better chances (30-40%) remaining across the eastern
portion of the CWA. For the second half of tonight, PoPs will
decrease to about 20 percent with the focus still across the eastern
portion of the CWA, but with the addition of the coastal areas. Lows
overnight will only drop into the mid 70s inland to upper 70s along
the coast.

.SHORT TERM [Thursday Through Friday Night]...

The weak upper low over the southeast will continue to influence
rain chances for Thursday. PoPs will be in the 30-50% range with
the highest in south Georgia and the Big Bend. By Friday upper
level flow becomes more zonal ahead of the approaching trough.
Friday PoPs will be slightly lower 20-40%. Highs will be in the
lower 90s with warmer temps to the west where rain chances are
lower.

.LONG TERM [Saturday Through Wednesday]...

The trough over the eastern US will shift east through the period.
It will bring a weak front that will increase shower and
thunderstorm chances for the weekend. Drier air will arrive by late
Sunday before rain chances increase again mid week. PoPs will
generally be 30-60% with the highest chances in the Big Bend. Highs
will be in the upper 80s with lows in the low 70s.

&&

.AVIATION [Through 18Z Thursday]...

VFR conditions are expected across the TAF sites this afternoon,
with the exception being in any thunderstorm that moves over a TAF
site. SHRA and TSRA is expected this afternoon with the better
chances at TLH and VLD. Convection will diminish this evening.
MVFR fog and even a site or two with LIFR cigs will be possible in
the morning.

&&

.MARINE...

Winds will be westerly 5 to 10 knots through Thursday then will
increase to 15 knots through the weekend. Seas will be 3 feet or
less.

&&

.FIRE WEATHER...

Hazardous fire weather conditions are not expected over the
next several days.

&&

.HYDROLOGY...

All area rivers are below flood stage. A few heavy showers and
thunderstorms could lead to brief localized flooding.

&&

.PRELIMINARY POINT TEMPS/POPS...

Tallahassee   74  91  75  93  76 /  30  40  20  40  10
Panama City   77  90  78  90  80 /  20  30  20  20  10
Dothan        74  93  74  94  75 /  20  30  10  20  20
Albany        74  90  74  94  76 /  20  30  10  20  20
Valdosta      73  89  74  92  74 /  40  50  30  30  10
Cross City    74  90  74  90  76 /  30  30  30  30  10
Apalachicola  76  89  77  90  79 /  20  30  20  20  10

&&

.TAE WATCHES/WARNINGS/ADVISORIES...

FL...None.
GA...None.
AL...None.
GM...None.

&&

NEAR TERM...Fieux
SHORT TERM...Weston
LONG TERM...Weston
AVIATION...Fieux
MARINE...Weston
FIRE WEATHER...Harrigan
HYDROLOGY...Weston

In the hours before

Special weather statement, Jul 26, 4:01 PM EDT, 0 minutes before
Special Weather Statement
National Weather Service Tallahassee FL
401 PM EDT WED JUL 26 2017

ALZ067-GAZ121-142-262045-
Henry AL-Clay GA-Early GA-
401 PM EDT WED JUL 26 2017

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN HENRY...SOUTHERN
CLAY AND NORTHWESTERN EARLY COUNTIES UNTIL 445 PM EDT/345 PM CDT/...

At 400 PM EDT/300 PM CDT/, National Weather Service doppler radar
indicated a a strong thunderstorm near Fort Gaines, moving south at
15 mph.

Half inch hail and winds in excess of 40 mph will be possible with
this storm.

Locations impacted include...
Fort Gaines, Blakely, Bellville, Haleburg, Bluffton, Harrisons Mill,
Shorterville, Barnes, Hardwickburg, Zetto, Hayes, Pecan, Colomokee,
Miller, Ferrell Crossroads, Early Co A/p, Jones Crossing, Kolomoki
Mounds Sp, Suttons Corner and Fort Gaines-Clay Airport.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

&&

LAT...LON 3163 8494 3162 8494 3162 8490 3160 8484
      3128 8488 3141 8526 3166 8503
TIME...MOT...LOC 2000Z 019DEG 13KT 3157 8497

32

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 26, 5:56 PM EDTSpecial Weather StatementTAEJackson49 min
Jul 26, 7:39 PM EDTSpecial Weather StatementTAEJefferson51 min
Jul 26, 7:41 PM EDTSpecial Weather StatementTAEWalton49 min
Jul 26, 5:02 PM EDTSpecial Weather StatementTAEEarly43 min
Jul 26, 5:05 PM EDTSpecial Weather StatementTAECoffee40 min
Jul 26, 6:22 PM EDTSpecial Weather StatementTAECoffee38 min
Jul 26, 6:39 PM EDTSpecial Weather StatementTAEGeneva51 min

Nearby

Special Weather Statements in Georgia, 2017Every special weather statement in 2017

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.