Alert archive / Florida / Special Weather Statements in 2018

Special Weather Statement, NWS Tallahassee, FL

September 2, 2018Walton County, Florida

NWS Tallahassee, FL issued this special weather statement at Sep 2, 2018, 6:31 PM CDT for Walton County, Florida. 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: Sep 2, 2018, 6:31 PM CDT (23:31 UTC)
Expired: Sep 2, 2018, 7:15 PM CDT
In force: 44 min
Issued by: NWS Tallahassee, FL

County Walton County, FL

The radar

The Eglin Afb radar (KEVX), 19 km from the middle of the area, began a volume at 23:34 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

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 11.5 hours before the alert went out and 175 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: 336 J/kg
Mixed-layer CIN: -123 J/kg
Mixed-layer LCL: 997 m above ground
0-6 km bulk shear: 6 kt
0-1 km storm-relative helicity: -24 m²/s²
0-3 km storm-relative helicity: -7 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 Sep 2, 2:02 PM CDT, 4 hours 29 minutes earlier.

Area forecast discussion, Sep 2, 2:02 PM CDT, 4 hours 29 minutes before

Area Forecast Discussion
National Weather Service Tallahassee FL
302 PM EDT Sun Sep 2 2018

.NEAR TERM [Through Tonight]...

There is a broken line of showers and thunderstorms entering the CWA
from the east and these, in addition to the other scattered storms
will continue to push westward through the afternoon and evening. A
strong to severe storm is possible. Convection should diminish in
the 1-2z time frame with re-development over the water for the
second half of the night. With easterly flow persisting through
tonight, low clouds will be possible Monday morning. Lows tonight
will drop into the lower 70s.

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

Deep layer ridging will remain centered well to our northeast
keeping moist southeast flow in place. This will also help steer
the tropical wave to the west northwest which should be over or
near the Keys by daybreak Monday. NHC has now given the tropical
wave a 90% chance of developing at least into a tropical
depression before approaching the central gulf coast by the end of
this period. There remains some uncertainty concerning potential
local impacts on this developing system. However, latest thinking
is that in addition to heavy rainfall potential, the most
significant impacts will be increasing winds and seas for our
local waters along with an increased rip current threat. All
interests along the northeast gulf coast should monitor this
situation closely. As expected, PoPs the next few days will be
elevated (50-70%). Temps will be near to slightly above seasonal
levels.

.LONG TERM [Wednesday Through Sunday]...

The tropical system is expected to be inland over the Lower
Mississippi River Valley and pull further away from the region
Wednesday into Thursday while weakening. Deep tropical moisture
may linger at least over our western zones Wednesday before
a somewhat drier airmass with more seasonal PoPs return for the
remainder of the week into the next weekend. Temperatures are
forecast near seasonal levels.

&&

.AVIATION [Through 18Z Monday]...

Showers and thunderstorms will continue across the ECP area over
the next few hours but the bulk of convection will move in from
the FL east coast into the VLD area and push westward into TLH,
ABY, and even DHN late this afternoon/evening. While guidance is
hinting at low clouds tomorrow morning, have shown SCT in the
TAFs given observations from this morning.

&&

.MARINE...

Winds will be out of an easterly direction across the coastal waters
today through Thursday. Both winds and seas will peak Monday night
through Tuesday, when at least advisory level conditions are
expected, as a tropical system moves across the waters. Conditions
will gradually improve thereafter into Thursday, as the tropical
system moves out of the waters, and winds and seas subside.

&&

.FIRE WEATHER...

Red flag conditions will not occur over the next several days with
relative humidity remaining above critical levels across the area.

&&

.HYDROLOGY...

Heavy rain is possible each day with afternoon convection, however
the potential for heavy rain will increase for Monday and especially
Tuesday, as a tropical wave moves across the eastern Gulf of Mexico.
Widespread rainfall amounts of 1 to 3 inches are possible, with the
highest amounts closer to the coast. High rainfall rates and the wet
ground may allow for minor flooding, particularly across urbanized
or poor drainage areas. With this tropical wave still a few days
out, it's important to monitor the forecast this weekend.

&&

.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   72  90  74  86  74 /  30  70  30  70  30
Panama City   72  88  75  84  76 /  40  70  50  80  50
Dothan        71  89  72  86  72 /  20  50  20  60  30
Albany        73  90  73  87  73 /  10  60  20  50  10
Valdosta      72  89  73  88  74 /  10  60  20  50  10
Cross City    73  89  74  88  74 /  20  70  30  70  20
Apalachicola  75  88  77  84  77 /  40  70  60  70  50

&&

.TAE WATCHES/WARNINGS/ADVISORIES...
FL...High Rip Current Risk until 11 PM EDT /10 PM CDT/ this evening
     for Coastal Bay-Coastal Franklin-South Walton.

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

&&

NEAR TERM...Fieux
SHORT TERM...Barry
LONG TERM...Barry
AVIATION...Fieux
MARINE...Barry
FIRE WEATHER...DVD
HYDROLOGY...LN

In the hours before

Special weather statement, Sep 2, 5:03 PM CDT, 1 hour 28 minutes before

Special Weather Statement
National Weather Service Tallahassee FL
603 PM EDT SUN SEP 2 2018

FLZ014-015-026-112-114-115-022300-
Inland Franklin FL-Coastal Bay FL-Liberty FL-Inland Gulf FL-
Coastal Franklin FL-Coastal Gulf FL-
603 PM EDT SUN SEP 2 2018

...SIGNIFICANT WEATHER ADVISORY FOR GULF...SOUTHEASTERN BAY...
SOUTHWESTERN LIBERTY AND WESTERN FRANKLIN COUNTIES UNTIL 700 PM
EDT/600 PM CDT/...

At 602 PM EDT/502 PM CDT/, Doppler radar was tracking a strong
thunderstorm near Carrabelle, moving west at 30 mph.

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

Locations impacted include...
Eastpoint, Apalachicola, St George Island, Port St. Joe, Mexico
Beach, Tyndall Air Force Base, Eleven Mile, Odena, Cape San Blas,
Indian Pass, Beverly, Overstreet, Milltown, Davis Beach, Bay City,
Willis Landing, Apalachicola Airport, Simmons Bayou, Hays Place and
Dalkeith.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If on or near St. George Island, Carrabelle Beach, or Cape San Blas,
get out of the water and move indoors or inside a vehicle. Remember,
lightning can strike out to 10 miles from the parent thunderstorm.
If you can hear thunder, you are close enough to be struck by
lightning. Move to safe shelter now! Do not be caught on the water
in a thunderstorm.

&&

LAT...LON 2960 8524 2959 8531 2982 8549 2988 8549
      2993 8557 2997 8560 3006 8497 2965 8481
      2954 8512
TIME...MOT...LOC 2202Z 093DEG 26KT 2986 8477

30-PULLIN

Local storm report, Sep 2, 5:44 PM CDT, 47 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TALLAHASSEE FL
644 PM EDT SUN SEP 2 2018

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

0640 PM     TSTM WND DMG     2 N SCOTTS FERRY        30.33N 85.13W
09/02/2018                   CALHOUN            FL   FIRE DEPT/RESCUE

            TREE DOWN ON A POWER LINE JUST SOUTH OF
            COUNTY ROAD 275.

&&

DVD

Local storm report, Sep 2, 5:45 PM CDT, 46 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TALLAHASSEE FL
645 PM EDT SUN SEP 2 2018

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

0642 PM     TSTM WND DMG     1 WSW SCOTTS FERRY      30.29N 85.14W
09/02/2018                   CALHOUN            FL   FIRE DEPT/RESCUE

            TWO TREES DOWN JUST NORTH OF THE SCOTTS
            FERRY FIRE DEPARTMENT.

&&

DVD

Local storm report, Sep 2, 5:48 PM CDT, 43 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TALLAHASSEE FL
648 PM EDT SUN SEP 2 2018

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

0620 PM     TSTM WND DMG     5 WNW HOSFORD           30.42N 84.88W
09/02/2018                   LIBERTY            FL   911 CALL CENTER

            VERY LARGE BRANCH DOWN ON HIGHWAY 20.

&&

DVD

Local storm report, Sep 2, 6:02 PM CDT, 29 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TALLAHASSEE FL
702 PM EDT SUN SEP 2 2018

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

0630 PM     TSTM WND DMG     3 SSW ESTIFFANULGA      30.27N 85.05W
09/02/2018                   LIBERTY            FL   FIRE DEPT/RESCUE

            TELEPHONE POLE LINE DOWN AT 25000 NW COUNTY
            ROAD 333.

&&

DVD

Special weather statement, Sep 2, 6:31 PM CDT, 0 minutes before

Special Weather Statement
National Weather Service Tallahassee FL
631 PM CDT SUN SEP 2 2018

FLZ007-008-108-030015-
Central Walton FL-South Walton FL-North Walton FL-
631 PM CDT SUN SEP 2 2018

...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL WALTON COUNTY UNTIL 715
PM CDT...

At 631 PM CDT, Doppler radar was tracking a strong thunderstorm 13
miles southeast of De Funiak Springs, moving west at 30 mph.

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

Locations impacted include...
De Funiak Springs, Eglin Air Force Base, Freeport, Red Bay, Douglass
Crossroad, Portland, Villa Tasso, De Funiak Spring Airport, Rock
Hill, Bruce, Eucheeanna, Pleasant Ridge, New Home, Knox Hill, Argyle
and Mossy Head.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 3075 8638 3072 8604 3070 8603 3070 8588
      3066 8588 3063 8592 3060 8591 3058 8589
      3046 8590 3046 8615 3048 8614 3046 8616
      3046 8619 3048 8620 3049 8619 3050 8620
      3048 8622 3049 8626 3046 8639
TIME...MOT...LOC 2331Z 091DEG 28KT 3057 8601

30-PULLIN

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 1, 7:05 PM CDT	Special Weather Statement	TAE	Jackson	25 min
Sep 1, 7:18 PM CDT	Special Weather Statement	TAE	Washington	27 min
Sep 1, 7:27 PM CDT	Special Weather Statement	TAE	Washington	33 min
Sep 2, 10:03 AM CDT	Rip Current Statement	TAE	Bay, Franklin, Gulf, Walton	4 days
Sep 2, 2:19 PM CDT	Severe Thunderstorm Warning	TAE	Dixie	56 min
Sep 2, 2:26 PM CDT	Special Weather Statement	TAE	Madison	49 min
Sep 2, 2:47 PM CDT	Special Marine Warning	TAE		88 min
Sep 2, 2:57 PM CDT	Special Weather Statement	TAE	Taylor	48 min
Sep 2, 2:59 PM CDT	Special Marine Warning	TAE		91 min
Sep 2, 3:24 PM CDT	Special Weather Statement	TAE	Lafayette	51 min
Sep 2, 3:31 PM CDT	Special Marine Warning	TAE		89 min
Sep 2, 4:06 PM CDT	Tropical Storm Watch	TAE		12 hr
Sep 2, 4:09 PM CDT	Special Weather Statement	TAE	Wakulla	51 min
Sep 2, 4:23 PM CDT	Special Weather Statement	TAE	Franklin	52 min
Sep 2, 4:38 PM CDT	Special Weather Statement	TAE	Liberty	52 min
Sep 2, 4:48 PM CDT	Severe Thunderstorm Warning	TAE	Gadsden, Leon, Liberty, Wakulla	42 min
Sep 2, 5:03 PM CDT	Special Weather Statement	TAE	Gulf	57 min
Sep 2, 5:13 PM CDT	Severe Thunderstorm Warning	TAE	Calhoun, Jackson, Liberty	47 min
Sep 2, 5:49 PM CDT	Severe Thunderstorm Warning	TAE	Bay, Calhoun, Gulf, Jackson, Washington	56 min
Sep 2, 6:20 PM CDT	Special Marine Warning	TAE		55 min
Sep 2, 6:43 PM CDT	Special Weather Statement	TAE	Holmes, Walton, Washington	62 min
Sep 2, 6:53 PM CDT	Severe Thunderstorm Warning	TAE	Walton	16 min
Sep 2, 2:07 PM CDT	Special Weather Statement	TAE	Lowndes	38 min
Sep 2, 2:36 PM CDT	Special Weather Statement	TAE	Brooks, Colquitt, Cook, Thomas	39 min
Sep 2, 3:02 PM CDT	Special Weather Statement	TAE	Colquitt	43 min
Sep 2, 4:46 PM CDT	Special Weather Statement	TAE	Terrell	44 min

Nearby

Special Weather Statements in Florida, 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.