Alert archive / Georgia / Special Weather Statements in 2018

Special Weather Statement, NWS Tallahassee, FL

August 2, 2018Cook County, Tift County, Georgia

NWS Tallahassee, FL issued this special weather statement at Aug 2, 2018, 1:02 PM EDT for Cook County, Tift County, Georgia. It was in force for 43 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: Aug 2, 2018, 1:02 PM EDT (17:02 UTC)
Expired: Aug 2, 2018, 1:45 PM EDT
In force: 43 min
Issued by: NWS Tallahassee, FL

Counties Cook County, GA, Tift County, GA

The radar

The Moody AFB radar (KVAX), 68 km from the middle of the area, began a volume at 17:05 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

Jacksonville, FL (KJAX), launched 12:00Z, 5.0 hours before the alert went out and 197 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: 1317 J/kg
Mixed-layer CIN: -30 J/kg
Mixed-layer LCL: 781 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: 58 m²/s²
0-3 km storm-relative helicity: 73 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.7

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 Aug 2, 10:37 AM EDT, 2 hours 25 minutes earlier.

Area forecast discussion, Aug 2, 10:37 AM EDT, 2 hours 25 minutes before

Area Forecast Discussion
National Weather Service Tallahassee FL
1037 AM EDT Thu Aug 2 2018

.UPDATE...

The previous discussions remain valid, with no changes to the
Flash Flood Watch at this time. Other than increasing PoPs to 100%
area-wide, no changes were made to the previous forecast.

&&

.PREV DISCUSSION [650 AM EDT]...

.NEAR TERM [Through Today]...

Active and wet pattern will continue through the period as moist
southwesterly flow remains in place over the region. High pressure
will begin to encroach upon the region from the east today, yielding
additional thunderstorm activity to the east of the plume of deep
layer moisture streaming into the region. With PWATs continuing to
exceed 2", excessive rainfall rates will continue to pose a threat
across the region. Rainfall rates exceeding 3"/hr are not out of the
question under the strongest convection through the period. As a
result of this and recent rainfall accumulations generally in the 2-
4 inch range (with isolated higher amounts), flash flooding remains
the main concern through the period. A Flash Flood Watch remains in
effect along and west of a line from Wakulla County, FL to Clay
County, GA. Though severe weather is not expected, some storms will
be capable of producing gusty winds. Given how saturated the ground
is, large trees are particularly vulnerable to uprooting and falling
over in sub-severe winds.

Given widespread cloud cover and storm coverage, diurnal swings will
once again be small today. Expect highs to only reach the lower 80s
across much of the region.

.SHORT TERM [Tonight Through Saturday]...

The upper level trough will remain in place across the Mississippi
Valley Thursday night, keeping us in a more active period in terms
of rainfall for the beginning of the short term. As high pressure
over the Atlantic builds westward on Friday, the upper level jet
associated with the trough is pushed westward. Despite the
lessening influence of the jet across the CWA, the area will
remain under deep southerly flow with high PoPs remaining through
Friday with the potential of heavy rain continuing through the end
of the work week. As the trough breaks down and high pressure
builds in, with relatively drier air, PoPs will return to the
30-50% range on Saturday with the higher values across the west.

.LONG TERM [Saturday Night Through Thursday]...

Will see a break from the wet pattern we have been in during the
long term. High pressure will slide over the southeast on Sunday and
with drier air in place, PoPs will be below normal for this time of
year. PoPs will range from 20-30% during the day, increasing to
around 30% on Wednesday. Highs will be in the lower 90s with lows in
the low to mid 70s.

.AVIATION [Through 12Z Friday]...

Widespread showers with scattered thunderstorms will continue
today around/at the TAF sites. Since TSRA will be more scattered,
have included in VCTS with predominate RA. Brief vsby reductions
are possible. MVFR cigs are expected through the day.

.MARINE...

Southerly winds around 10 knots and seas of 2-3 feet will persist
today and tomorrow across the marine area. Widespread showers and
scattered thunderstorms are expected across the marine area through
the remainder of the week. Winds and seas will be higher near the
thunderstorms. High pressure building into the area this weekend
will allow for below normal rain chances Sunday into next week.

.FIRE WEATHER...

Outside of low dispersions across the Florida Panhandle and
marginally high dispersions across the eastern Big Bend, hazardous
fire weather conditions are not expected through the weekend.
Chances for wetting rains remain elevated through Friday.

.HYDROLOGY...

The higher rainfall totals have generally been observed across the
Florida Panhandle with areas of 3-5 inches of rain since Tuesday
morning. The heaviest rainfall through Friday will be focused
mainly south of I-10, with generally 2-4 inches of rain likely
with isolated maximum totals up to 8 inches possible. Given the
potential for the heavier totals, will maintain the flash flood
watch as currently configured. With indications though, that the
heavy rain threat will continue into tonight, particularly along
the coast, have extended the Flash Flood Watch through 12z Friday.

In terms of the rivers, rises can be noted on area rivers with
some expected to make it into action stage or minor flood stage.
The Aucilla River at Lamont is rising steadily and is expected to
go above flood stage in the next couple of days. In addition, the
St. Marks River at Newport is just below flood stage and will have
to be monitored for the potential to reach flood stage later
today. The Sopchoppy River is approaching action stage this
morning and should come close to flood stage tonight. Will also
be watching the Steinhatchee River - though anticipated rainfall
amounts there may be just low enough to prevent a return to flood
stage.

.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   80  73  87  74  91 / 100  50  60  30  30
Panama City   80  75  85  75  89 / 100  60  60  30  40
Dothan        79  71  83  71  89 / 100  50  60  30  50
Albany        79  72  86  72  90 / 100  50  60  30  50
Valdosta      85  73  88  73  91 / 100  30  70  30  30
Cross City    87  74  90  74  91 /  90  40  50  30  30
Apalachicola  81  76  86  76  88 / 100  50  50  30  40

&&

.TAE WATCHES/WARNINGS/ADVISORIES...
FL...Flash Flood Watch through Friday morning for Calhoun-Central
     Walton-Coastal Bay-Coastal Franklin-Coastal Gulf-Coastal
     Wakulla-Gadsden-Holmes-Inland Bay-Inland Franklin-Inland
     Gulf-Inland Wakulla-Jackson-Leon-Liberty-North Walton-South
     Walton-Washington.

     High Rip Current Risk through late tonight for Coastal Bay-
     Coastal Franklin-Coastal Gulf-South Walton.

GA...Flash Flood Watch through Friday morning for Clay-Decatur-Early-
     Miller-Seminole.

AL...Flash Flood Watch through Friday morning for Coffee-Dale-Geneva-
     Henry-Houston.

GM...None.
&&

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

In the hours before

Local storm report, Aug 2, 9:58 AM EDT, 3 hours 4 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TALLAHASSEE FL
958 AM EDT THU AUG 2 2018

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

0645 AM     HEAVY RAIN       SUNNYSIDE               30.25N 85.94W
08/02/2018  M5.61 INCH       BAY                FL   COCORAHS

            COCORAHS STATION FL-BY-10, SUNNYSIDE. THE
            DURATION OF THE HEAVY RAIN EVENT WAS 72
            HOURS.

0700 AM     HEAVY RAIN       TELOGIA                 30.35N 84.82W
08/02/2018  M9.51 INCH       LIBERTY            FL   COCORAHS

            COCORAHS STATION FL-LB-3, TELOGIA. THE
            DURATION OF THE HEAVY RAIN EVENT WAS 72
            HOURS.

0700 AM     HEAVY RAIN       I-75 AT EXIT 5          30.68N 83.24W
08/02/2018  M5.07 INCH       LOWNDES            GA   COCORAHS

            COCORAHS STATION GA-LW-4, I-75 AT EXIT 5.
            THE DURATION OF THE HEAVY RAIN EVENT WAS 72
            HOURS.

0730 AM     HEAVY RAIN       LIVE OAK                30.57N 85.87W
08/02/2018  M8.12 INCH       WASHINGTON         FL   COCORAHS

            COCORAHS STATION FL-WS-1, LIVE OAK. THE
            DURATION OF THE HEAVY RAIN EVENT WAS 72
            HOURS.

0800 AM     HEAVY RAIN       WACISSA SPRINGS         30.34N 84.00W
08/02/2018  M5.68 INCH       JEFFERSON          FL   COCORAHS

            COCORAHS STATION FL-JF-3, WACISSA SPRINGS.
            THE DURATION OF THE HEAVY RAIN EVENT WAS 72
            HOURS.

0830 AM     HEAVY RAIN       INLET BEACH             30.28N 86.00W
08/02/2018  M5.88 INCH       WALTON             FL   COCORAHS

            COCORAHS STATION FL-WT-14, INLET BEACH. THE
            DURATION OF THE HEAVY RAIN EVENT WAS 72
            HOURS.

0900 AM     HEAVY RAIN       OCHLOCKONEE RIVER AT CU 29.99N 84.50W
08/02/2018  M5.20 INCH       WAKULLA            FL   MESONET

            MESONET STATION CTMF1, OCHLOCKONEE RIVER AT
            CURTIS MILL. THE DURATION OF THE HEAVY RAIN
            EVENT WAS 72 HOURS.

0900 AM     HEAVY RAIN       NWFWMD FAF WELL #47     30.56N 86.03W
08/02/2018  M6.95 INCH       WALTON             FL   MESONET

            MESONET STATION RBYF1, NWFWMD FAF WELL #47.
            THE DURATION OF THE HEAVY RAIN EVENT WAS 72
            HOURS.

0900 AM     HEAVY RAIN       1 NNE THOMAS CITY       30.37N 83.97W
08/02/2018  M5.84 INCH       JEFFERSON          FL   MESONET

            MESONET STATION WACF1, 1 NNE THOMAS CITY.
            THE DURATION OF THE HEAVY RAIN EVENT WAS 72
            HOURS.

0904 AM     HEAVY RAIN       SUMATRA                 30.02N 84.99W
08/02/2018  M6.62 INCH       LIBERTY            FL   MESONET

            MESONET STATION SURF1, SUMATRA. THE DURATION
            OF THE HEAVY RAIN EVENT WAS 72 HOURS.

0930 AM     HEAVY RAIN       SPRING CREEK NEAR SPRIN 30.07N 84.33W
08/02/2018  M6.75 INCH       GMZ730             FL   MESONET

            MESONET STATION SBIF1, SPRING CREEK NEAR
            SPRING CREEK ON BOGGY ISLAND. THE DURATION
            OF THE HEAVY RAIN EVENT WAS 72 HOURS.

0940 AM     HEAVY RAIN       1 SSE PORTLAND          30.49N 86.19W
08/02/2018  M5.33 INCH       WALTON             FL   MESONET

            MESONET STATION AU805, 1 SSE PORTLAND. THE
            DURATION OF THE HEAVY RAIN EVENT WAS 72
            HOURS.

&&

Special weather statement, Aug 2, 11:42 AM EDT, 1 hour 20 minutes before

Special Weather Statement
National Weather Service Tallahassee FL
1142 AM EDT THU AUG 2 2018

FLZ028-128-021630-
Inland Taylor FL-Coastal Taylor FL-
1142 AM EDT THU AUG 2 2018

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN TAYLOR COUNTY UNTIL
1230 PM EDT...

At 1142 AM EDT, Doppler radar was tracking a strong thunderstorm 15
miles northwest of Steinhatchee, moving northeast at 15 mph.

Winds in excess of 40 mph will be possible with this storm.

Locations impacted include...
Fish Creek, Dekle Beach, Jug Island, Jack Lee Island, Keaton Beach,
Bird Island, Salem, Blue Springs, Carbur, Cedar Island and Adams
Beach.

LAT...LON 2974 8358 2980 8367 3003 8359 2991 8337
      2989 8337 2989 8335 2988 8335
TIME...MOT...LOC 1542Z 211DEG 14KT 2982 8358

15-HARRIGAN

Local storm report, Aug 2, 12:07 PM EDT, 55 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TALLAHASSEE FL
1207 PM EDT THU AUG 2 2018

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

1138 AM     MARINE TSTM WIND 17 S SAINT GEORGE ISLAN 29.41N 84.86W
08/02/2018  M44 MPH          GMZ755             FL   C-MAN STATION

            PEAK GUST TO 38 KNOTS AT THE C-TOWER.

&&

DVD

Special weather statement, Aug 2, 12:21 PM EDT, 41 minutes before

Special Weather Statement
National Weather Service Tallahassee FL
1221 PM EDT THU AUG 2 2018

FLZ019-028-029-GAZ147-148-159-160-021700-
Inland Taylor FL-Madison FL-Lafayette FL-Berrien GA-Brooks GA-
Lowndes GA-Cook GA-
1221 PM EDT THU AUG 2 2018

...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN LAFAYETTE...
NORTHEASTERN TAYLOR...EASTERN MADISON...SOUTHERN COOK...SOUTH CENTRAL
BERRIEN...LOWNDES AND CENTRAL BROOKS COUNTIES UNTIL 100 PM EDT...

At 1221 PM EDT, Doppler radar was tracking strong thunderstorms along
a line extending from near I-75 At Exit 16 to 11 miles east of Perry.
Movement was north at 35 mph.

Winds in excess of 40 mph will be possible with these storms.

Locations impacted include...
Madison, Nashville, Adel, Valdosta, Lake Park, Hahira, Sparks, I-75
At Exit 16, Remerton, Dasher, Morven, Lee, Cecil, New Lois, Massee,
Greggs, Pinetta, Nankin, Clyattville and Hanson.

LAT...LON 3005 8347 3110 8356 3127 8324 3063 8321
      3063 8329 3059 8326 3035 8320
TIME...MOT...LOC 1621Z 193DEG 29KT 3081 8340 3012 8339

15-HARRIGAN

Special weather statement, Aug 2, 12:43 PM EDT, 19 minutes before

Special Weather Statement
National Weather Service Tallahassee FL
1243 PM EDT THU AUG 2 2018

FLZ015-018-026-027-115-118-127-021730-
Inland Franklin FL-Liberty FL-Coastal Wakulla FL-
Coastal Jefferson FL-Inland Jefferson FL-Coastal Franklin FL-
Inland Wakulla FL-
1243 PM EDT THU AUG 2 2018

...SIGNIFICANT WEATHER ADVISORY FOR WAKULLA...SOUTHEASTERN LIBERTY...
WEST CENTRAL JEFFERSON AND NORTHEASTERN FRANKLIN COUNTIES UNTIL 130
PM EDT...

At 1242 PM EDT, Doppler radar was tracking strong thunderstorms along
a line extending from 6 miles southeast of St. Marks to 15 miles
south of Crawfordville to 16 miles north of Carrabelle. Movement was
northeast at 35 mph.

Winds in excess of 40 mph will be possible with these storms.

Locations impacted include...
St. Marks, Crawfordville, Woodville, Wakulla, Sopchoppy, Newport,
Shadeville, Wakulla Springs, Panacea, Poplar Camp, Smith Creek,
Medart, Buckhorn, Bethel, Liveoak Island, Curtis Mill, Alligator
Point, Saint Teresa, Turkey Point and Bald Point.

LAT...LON 3003 8478 3030 8462 3030 8425 3027 8424
      3027 8408 3029 8407 3029 8395 3003 8411
      3002 8413 3001 8422 2994 8426 2984 8441
TIME...MOT...LOC 1642Z 208DEG 32KT 3008 8416 2997 8439 3009 8467

15-HARRIGAN

Special weather statement, Aug 2, 1:02 PM EDT, 0 minutes before

Special Weather Statement
National Weather Service Tallahassee FL
102 PM EDT THU AUG 2 2018

GAZ127-129-131-146>148-021745-
Berrien GA-Tift GA-Worth GA-Colquitt GA-Irwin GA-Cook GA-
102 PM EDT THU AUG 2 2018

...SIGNIFICANT WEATHER ADVISORY FOR COOK...SOUTHWESTERN IRWIN...
NORTHWESTERN BERRIEN...EASTERN COLQUITT...TIFT AND SOUTHEASTERN WORTH
COUNTIES UNTIL 145 PM EDT...

At 102 PM EDT, Doppler radar was tracking a strong thunderstorm near
Sparks, or near Adel, moving north at 35 mph.

Winds in excess of 40 mph will be possible with this storm.

Locations impacted include...
Tifton, Adel, Moultrie, Sparks, Enigma, Omega, Norman Park, Lenox, Ty
Ty, Unionville, Phillipsburg, Berlin, Cecil, Ellenton, Reed Bingham
State Park, Eldorado, Scooterville, Gladys, Massee and Greggs.

LAT...LON 3103 8340 3104 8349 3105 8350 3105 8354
      3108 8357 3104 8357 3105 8372 3159 8369
      3159 8367 3157 8367 3157 8365 3159 8365
      3157 8320
TIME...MOT...LOC 1702Z 188DEG 30KT 3120 8350

15-HARRIGAN

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 2, 12:39 AM EDT	Special Weather Statement	TAE	Jefferson	51 min
Aug 2, 12:48 AM EDT	Special Marine Warning	TAE		42 min
Aug 2, 1:20 AM EDT	Special Marine Warning	TAE		40 min
Aug 2, 1:23 AM EDT	Special Marine Warning	TAE		67 min
Aug 2, 2:28 AM EDT	Special Marine Warning	TAE		36 min
Aug 2, 3:14 AM EDT	Special Marine Warning	TAE		46 min
Aug 2, 3:41 AM EDT	Special Weather Statement	TAE	Bay	34 min
Aug 2, 3:52 AM EDT	Special Marine Warning	TAE		38 min
Aug 2, 4:10 AM EDT	Special Weather Statement	TAE	Gulf	50 min
Aug 2, 4:19 AM EDT	Rip Current Statement	TAE	Bay, Franklin, Gulf, Walton	49 hr
Aug 2, 4:25 AM EDT	Special Weather Statement	TAE	Bay	50 min
Aug 2, 4:28 AM EDT	Special Marine Warning	TAE		32 min
Aug 2, 5:09 AM EDT	Special Weather Statement	TAE	Bay	51 min
Aug 2, 5:37 AM EDT	Special Weather Statement	TAE	Wakulla	38 min
Aug 2, 5:39 AM EDT	Tornado Warning	TAE	Bay, Washington	24 min
Aug 2, 6:10 AM EDT	Special Marine Warning	TAE		65 min
Aug 2, 9:45 AM EDT	Special Marine Warning	TAE		60 min
Aug 2, 9:49 AM EDT	Special Weather Statement	TAE	Franklin	41 min
Aug 2, 11:02 AM EDT	River Flood Warning	TAE	Wakulla	31 hr
Aug 2, 11:17 AM EDT	Special Marine Warning	TAE		74 min
Aug 2, 11:41 AM EDT	Special Marine Warning	TAE		64 min
Aug 2, 11:42 AM EDT	Special Weather Statement	TAE	Taylor	48 min
Aug 2, 12:21 PM EDT	Special Weather Statement	TAE	Madison	39 min
Aug 2, 12:40 PM EDT	Special Marine Warning	TAE		95 min
Aug 2, 12:43 PM EDT	Special Weather Statement	TAE	Wakulla	47 min
Aug 2, 1:39 PM EDT	River Flood Warning	TAE	Wakulla	7 days
Aug 2, 1:26 PM EDT	Special Weather Statement	TAE	Berrien, Lanier	19 min
Aug 2, 1:44 PM EDT	Special Weather Statement	TAE	Ben Hill, Berrien, Irwin	31 min

Nearby

Special Weather Statements in Georgia, 2018 Every special weather statement in 2018

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.