Alert archive / Alabama / Special Weather Statements in 2017

Special Weather Statement, NWS Tallahassee, FL

July 8, 2017Geneva County, Alabama

NWS Tallahassee, FL issued this special weather statement at Jul 8, 2017, 2:00 PM CDT for Geneva County, Alabama. It was in force for 45 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 8, 2017, 2:00 PM CDT (19:00 UTC)
Expired: Jul 8, 2017, 2:45 PM CDT
In force: 45 min
Issued by: NWS Tallahassee, FL

County Geneva County, AL

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 7.0 hours before the alert went out and 188 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: 1852 J/kg
Mixed-layer CIN: -6 J/kg
Mixed-layer LCL: 679 m above ground
0-6 km bulk shear: 15 kt
0-1 km storm-relative helicity: -27 m²/s²
0-3 km storm-relative helicity: -22 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 8, 1:46 PM CDT, 14 minutes earlier.

Area forecast discussion, Jul 8, 1:46 PM CDT, 14 minutes before

Area Forecast Discussion
National Weather Service Tallahassee FL
246 PM EDT Sat Jul 8 2017

.NEAR TERM [Through Tonight]...

A shortwave moving south through the Midwest this afternoon will
drop into the eastern CONUS trough resulting in some amplification
through today. At the surface, areas of low pressure associated
with the large-scale trough sit off the Nova Scotia coast and back
into southeast Quebec as well. Troughing extends from this broad
area of low pressure down the Eastern Seaboard and is reinforced
across the Southeast by westerly flow over the Appalachians.
Locally, southwesterly steering flow around 10-15 knots has
favored one of our wetter and earlier seabreeze regimes, though
convection is now primarily dominated by outflow across the Big
Bend and south-central Georgia. With weak synoptic support from
the amplifying upper-level trough, the surface trough, and
ongoing storm outflow, expect numerous showers and thunderstorms
to continue into this evening. Convection is beginning to move
into the Panhandle and southeast Alabama along the surface trough
as of 3 PM EDT. Marginal lapse rates and wet- microburst
indicators, as well as only about 15 knots of deep layer shear
wouldn't suggest an incredibly impressive environment for severe
thunderstorm development, but certainly a few storms with a
damaging wind threat will be possible. Hail doesn't appear to be
favorable with the marginal lapse rates and warm mid- level
temperatures. The SPC has much of the Tri-State region under a
marginal risk for severe storms. PWATs slightly above normal (via
this morning's sounding) could suggest the potential for some
heavier than usual rain in the strongest storms. Expect isolated
areas to have the chance to pick up a quick 1-3 inches. However,
on average rainfall amounts should remain on the order of an inch
or less. Storms should dissipate quickly around sunset, with lows
falling into the low to mid 70s overnight.

.SHORT TERM [Sunday Through Monday Night]...

This will be an active period with respect to convective coverage.
The upper level trough will remain over the area as a cold front
edges closer to the region. The low level ridge axis will remain
south of the areas providing a favorable flow regime for sea-breeze
induced convective coverage. PoPs will generally be near or above
average with highest PoPs inland. Max temperatures will be near
normal in the lower 90s, although many will get some relief in the
afternoon from thunderstorm outflow.

.LONG TERM [Tuesday Through Saturday]...

Little change is anticipated through Tuesday. After that, the upper
trough will lift northward for a couple of days along with the
surface ridge axis. Pops will drop off 10-20% or so and max temps
will edge upward into the mid 90s once again. Another front will
approach from the northwest towards the weekend inching PoPs upward
once again.

&&

.AVIATION [Through 18Z Sunday]...

Numerous showers and thunderstorms this afternoon are likely to
impact DHN, TLH, and ABY. ECP may be done with thunderstorms for
the afternoon, with too much uncertainty to include in the TAF at
VLD. LIFR and gusty winds 30 to 40 knots will be possible in
storms today. By 00z thunderstorm chances will fall dramatically
and most sites should remain VFR through the TAF. The exception
would be if storms slide inland at ECP early tomorrow morning.

&&

.MARINE...

Winds and seas will generally remain on the low side as high
pressure will dominate across the northern Gulf. Locally higher
enhancements to winds and seas can be expected in and around heavier
thunderstorms.

&&

.FIRE WEATHER...

No concerns.

&&

.HYDROLOGY...

Scattered to numerous showers and thunderstorms, typical of
summertime, will only produce locally heavy rain. However the
duration of this heavy rain should be short enough to preclude any
significant flooding concerns. Area rivers will remain below flood
stage.

&&

.PRELIMINARY POINT TEMPS/POPS...

Tallahassee   75  91  74  91  74 /  20  50  20  50  10
Panama City   79  88  77  87  77 /  40  40  30  40  20
Dothan        74  91  73  90  73 /  30  60  30  70  10
Albany        74  92  73  91  73 /  20  60  30  60  20
Valdosta      73  93  73  92  73 /  20  50  20  60  20
Cross City    75  91  74  91  74 /  30  40  20  40  20
Apalachicola  78  89  77  89  77 /  30  40  30  30  10

&&

.TAE WATCHES/WARNINGS/ADVISORIES...

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

&&

NEAR TERM...Harrigan
SHORT TERM...Wool
LONG TERM...Wool
AVIATION...Harrigan
MARINE...Wool
FIRE WEATHER...Fournier
HYDROLOGY...Wool

In the hours before

Special weather statement, Jul 8, 11:00 AM CDT, 3 hours before

Special Weather Statement
National Weather Service Tallahassee FL
1100 AM CDT SAT JUL 8 2017

FLZ010>013-081645-
Inland Bay FL-Calhoun FL-Jackson FL-Washington FL-
1100 AM CDT SAT JUL 8 2017

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN JACKSON...
NORTHEASTERN BAY...NORTHWESTERN CALHOUN AND EAST CENTRAL WASHINGTON
COUNTIES IN THE PANHANDLE OF FLORIDA UNTIL 1145 AM CDT...

At 1100 AM CDT, National Weather Service doppler radar indicated a a
strong thunderstorm 14 miles southeast of Chipley, moving northeast
at 20 mph.

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

Locations impacted include...
Marianna, Altha, Alford, Betts, Orange Hill, Kynesville, Ridgetop,
Union City, Camps Head, Steele City, Gilberts Mill, Sink Creek,
Center Lake, Willis, Star, Round Lake, Simsville, Alliance, Compass
Lake and Marianna Municipal A/P.

LAT...LON 3049 8543 3066 8554 3085 8519 3059 8502
TIME...MOT...LOC 1600Z 245DEG 16KT 3060 8541

15-HARRIGAN

Special weather statement, Jul 8, 12:53 PM CDT, 1 hour 7 minutes before

Special Weather Statement
National Weather Service Tallahassee FL
153 PM EDT SAT JUL 8 2017

FLZ017-018-027-081845-
Inland Jefferson FL-Inland Wakulla FL-Leon FL-
153 PM EDT SAT JUL 8 2017

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN WAKULLA...WEST
CENTRAL JEFFERSON AND EASTERN LEON COUNTIES UNTIL 245 PM EDT...

At 152 PM EDT, National Weather Service doppler radar indicated a
strong thunderstorms along a line extending from near Tallahassee to
near Florida A And M to near Woodville. Movement was northeast at 15
mph.

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

Locations impacted include...
Tallahassee, Woodville, Wakulla, Ralford Greenway, Cody, Macon
Community Park, Tallahassee Memorial Hosp, Killearn Estates, Chaires,
Lake Ella, Tallahassee Mall, Governors Square Mall, Natural Bridge,
Forest Meadows Park, Pisgah Church, Apalachee Regional Park, Levy
Park, Indian Head Acres, Chaires Crossroads and Lake Iamonia.

LAT...LON 3067 8426 3054 8406 3026 8401 3021 8423
      3041 8424 3049 8434
TIME...MOT...LOC 1752Z 230DEG 12KT 3050 8430 3045 8420 3025 8417

15-HARRIGAN

Special weather statement, Jul 8, 12:54 PM CDT, 1 hour 6 minutes before

Special Weather Statement
National Weather Service Tallahassee FL
154 PM EDT SAT JUL 8 2017

FLZ017-027-127-081845-
Coastal Wakulla FL-Inland Wakulla FL-Leon FL-
154 PM EDT SAT JUL 8 2017

...SIGNIFICANT WEATHER ADVISORY FOR EASTERN WAKULLA AND SOUTHWESTERN
LEON COUNTIES UNTIL 245 PM EDT...

At 154 PM EDT, National Weather Service doppler radar indicated a
strong thunderstorms along a line extending from 6 miles southwest of
Midway to 12 miles southwest of Tallahassee Comm College to 8 miles
southwest of Crawfordville. Movement was northeast at 10 mph.

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

Locations impacted include...
Crawfordville, St. Marks, Woodville, Tallahassee, Florida A And M,
Tallahassee Comm College, Florida State University, Doak Campbell
Stadium, Wakulla, Lake Bradford, Shadeville, Brown House, Leon Sinks,
Gaither Community Center, Lake Munson, Wakulla Springs, Eight Mile
Pond, Medart, Buckhorn and Bethel.

LAT...LON 3001 8446 3015 8449 3041 8459 3044 8456
      3044 8453 3045 8452 3045 8451 3046 8449
      3046 8445 3047 8442 3048 8440 3050 8434
      3043 8424 3012 8421
TIME...MOT...LOC 1754Z 226DEG 8KT 3042 8452 3030 8447 3007 8441

15-HARRIGAN

Special weather statement, Jul 8, 1:17 PM CDT, 43 minutes before

Special Weather Statement
National Weather Service Tallahassee FL
217 PM EDT SAT JUL 8 2017

FLZ017-018-GAZ158-081900-
Inland Jefferson FL-Leon FL-Thomas GA-
217 PM EDT SAT JUL 8 2017

...SIGNIFICANT WEATHER ADVISORY FOR NORTH CENTRAL JEFFERSON...
NORTHEASTERN LEON AND SOUTHWESTERN THOMAS COUNTIES UNTIL 300 PM
EDT...

At 216 PM EDT, National Weather Service doppler radar indicated a a
strong thunderstorm 12 miles northwest of Monticello, moving
northeast at 25 mph.

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

Locations impacted include...
Moccasin Gap, Alma, Fincher, Festus, Jarrott, Miccosukee, Iamonia and
Metcalf.

LAT...LON 3055 8409 3064 8421 3068 8415 3068 8409
      3072 8408 3080 8395 3063 8376
TIME...MOT...LOC 1816Z 244DEG 23KT 3064 8405

15-HARRIGAN

Special weather statement, Jul 8, 1:28 PM CDT, 32 minutes before

Special Weather Statement
National Weather Service Tallahassee FL
228 PM EDT SAT JUL 8 2017

GAZ125-127-145-081915-
Worth GA-Dougherty GA-Mitchell GA-
228 PM EDT SAT JUL 8 2017

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN DOUGHERTY...
NORTHEASTERN MITCHELL AND SOUTHERN WORTH COUNTIES UNTIL 315 PM EDT...

At 228 PM EDT, National Weather Service doppler radar indicated a a
strong thunderstorm 7 miles southwest of Sylvester, moving east at 20
mph.

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

Locations impacted include...
Sylvester, Poulan, Marine Corps Logistics Base, Sumner, Bridgeboro,
Minton, Gordy, Scooterville, Livingston, Sylvester Airport, Anderson
City, Tempy, Parkerville, Powelltown, Acree, Lester, Pritchetts,
Gammage, Crestwood and Shingler.

LAT...LON 3161 8370 3160 8369 3134 8367 3135 8405
      3156 8405 3162 8370
TIME...MOT...LOC 1828Z 262DEG 18KT 3148 8394

15-HARRIGAN

Special weather statement, Jul 8, 2:00 PM CDT, 0 minutes before

Special Weather Statement
National Weather Service Tallahassee FL
200 PM CDT SAT JUL 8 2017

ALZ068-081945-
Geneva AL-
200 PM CDT SAT JUL 8 2017

...SIGNIFICANT WEATHER ADVISORY FOR WESTERN GENEVA COUNTY UNTIL 245
PM CDT...

At 200 PM CDT, National Weather Service doppler radar indicated a a
strong thunderstorm near Samson, or 11 miles southeast of Opp, moving
east at 25 mph.

Dime size hail and winds in excess of 40 mph will be possible with
this storm.

Locations impacted include...
Geneva, Samson, Coffee Springs, Earlytown, Hacoda, Chancellor,
Spears, Pera, Eunola, Weeks, Sellersville, Lytle, Marl, Logan Field
Municipal A/P, Geneva Municipal A/P, Vaughanville, Ganer, Lowery and
Somerset.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 3119 8613 3118 8613 3118 8612 3119 8611
      3120 8583 3099 8581 3099 8606 3107 8619
      3119 8619
TIME...MOT...LOC 1900Z 274DEG 22KT 3113 8616

ADL

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 8, 4:18 AM CDT	Special Marine Warning	TAE		27 min
Jul 8, 6:45 AM CDT	Special Weather Statement	TAE	Taylor	45 min
Jul 8, 8:28 AM CDT	Special Marine Warning	TAE		62 min
Jul 8, 8:29 AM CDT	Special Weather Statement	TAE	Walton	31 min
Jul 8, 11:00 AM CDT	Special Weather Statement	TAE	Jackson	45 min
Jul 8, 12:53 PM CDT	Special Weather Statement	TAE	Leon	52 min
Jul 8, 12:54 PM CDT	Special Weather Statement	TAE	Wakulla	51 min
Jul 8, 1:17 PM CDT	Special Weather Statement	TAE	Thomas	43 min
Jul 8, 1:28 PM CDT	Special Weather Statement	TAE	Worth	47 min
Jul 8, 1:52 PM CDT	Severe Thunderstorm Warning	TAE	Quitman	38 min
Jul 8, 3:45 PM CDT	Special Weather Statement	TAE	Terrell	45 min
Jul 8, 3:50 PM CDT	Severe Thunderstorm Warning	TAE	Dougherty, Lee, Terrell	40 min
Jul 8, 3:53 PM CDT	Severe Thunderstorm Warning	TAE	Calhoun, Clay, Early, Randolph	52 min
Jul 8, 3:59 PM CDT	Severe Thunderstorm Warning	TAE	Lee, Worth	46 min
Jul 8, 4:11 PM CDT	Severe Thunderstorm Warning	TAE	Calhoun, Early	49 min
Jul 8, 4:32 PM CDT	Severe Thunderstorm Warning	TAE	Lee, Worth	43 min
Jul 8, 4:51 PM CDT	Severe Thunderstorm Warning	TAE	Baker, Calhoun, Early	39 min
Jul 8, 5:08 PM CDT	Special Weather Statement	TAE	Dougherty	52 min
Jul 8, 5:15 PM CDT	Special Weather Statement	TAE	Terrell	45 min
Jul 8, 2:28 PM CDT	Special Weather Statement	TAE	Geneva	47 min
Jul 8, 2:40 PM CDT	Severe Thunderstorm Warning	TAE	Dale, Geneva, Houston	50 min
Jul 8, 3:02 PM CDT	Special Weather Statement	TAE	Dale	43 min
Jul 8, 3:08 PM CDT	Severe Thunderstorm Warning	TAE	Dale	37 min
Jul 8, 3:29 PM CDT	Severe Thunderstorm Warning	TAE	Dale, Henry	46 min
Jul 8, 4:02 PM CDT	Severe Thunderstorm Warning	TAE	Coffee, Dale, Henry	31 min

Nearby

Special Weather Statements in Alabama, 2017 Every 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.