Alert archive / Florida / Special Weather Statements in 2016

Special Weather Statement, NWS Tallahassee, FL

July 31, 2016Walton County, Florida

NWS Tallahassee, FL issued this special weather statement at Jul 31, 2016, 5:32 PM CDT for Walton County, Florida. 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: Jul 31, 2016, 5:32 PM CDT (22:32 UTC)
Expired: Jul 31, 2016, 6:15 PM CDT
In force: 43 min
Issued by: NWS Tallahassee, FL

County Walton County, FL

The radar

The Eglin Afb radar (KEVX), 12 km from the middle of the area, began a volume at 22:33 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, 10.5 hours before the alert went out and 160 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: 1583 J/kg
Mixed-layer CIN: -22 J/kg
Mixed-layer LCL: 907 m above ground
0-6 km bulk shear: 2 kt
0-1 km storm-relative helicity: -7 m²/s²
0-3 km storm-relative helicity: -1 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 31, 1:52 PM CDT, 3 hours 40 minutes earlier.

Area forecast discussion, Jul 31, 1:52 PM CDT, 3 hours 40 minutes before

Area Forecast Discussion
National Weather Service Tallahassee FL
252 PM EDT SUN JUL 31 2016

.NEAR TERM [Through Tonight]...

High pressure remains in place over the northern Gulf coast with an
upper level shortwave trough over the Great Lakes. We have plentiful
moisture on tap with satellite PW estimates around 2" over much of
the area and the SPC mesoanalysis shows MLCAPE around 2000 J/kg and
SBCAPE around 3000 J/kg across the area. Between seabreeze forcing,
enhanced upper level divergence to our north from the trough, and
the available moisture and instability, we've already seen an active
start to convection this afternoon. Scattered to numerous
thunderstorms will continue through the evening hours and are
expected dissipate shortly after sunset. Overnight minimum
temperatures will be in the mid 70s, about 80 near the immediate
coastline.

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

A deep layer ridge will remain in place over our area during
the beginning of the week, with seasonably hot and humid
conditions persisting. While no significant upper level forcing
is expected, PWAT values of 2" or greater are expected throughout
the period, so ample moisture will be present. Combined with sea
breeze forcing and decent instability, this will result in decent
coverage of scattered showers and thunderstorms each afternoon
and early evening across our area. Precipitation chances will
mainly be in the 30-50% range inland each day, with highs in the
low-mid 90s and lows in the mid 70s. Along the coast, highs in
the upper 80s and lows in the upper 70s are expected.

.LONG TERM [Wednesday Through Sunday]...

No significant differences from the short term are expected
during this period, with the upper level jet remaining well to
our north and a deep ridge prevailing. One minor exception could
be a weak stationary front projected to stretch across the
Carolinas and southwestward into Georgia, which could help
enhance convection across our northeastern areas Thursday and
Friday. Otherwise, high PWAT values and sea breeze forcing will
continue to drive scattered showers and thunderstorms each
afternoon and early evening, with mainly isolated showers/storms
possible overnight through the morning hours.

&&

.AVIATION [Through 18Z Monday]...

Thunderstorms directly affecting terminals may cause gusty,
variable winds and reduction in visibility to IFR levels, but
otherwise VFR conditions are expected to prevail through the
period. Winds will be mostly below 10 knots and from the
southwest.

&&

.MARINE...

Light winds generally from 5 to 10 knots will prevail through the
next several days, leading to seas around a foot or less each day.

&&

.FIRE WEATHER...

RH values will remain well above critical thresholds for the next
several days. Therefore, no hazardous fire weather conditions are
expected.

&&

.HYDROLOGY...

No widespread flooding is anticipated. As usual for this time of
year, isolated areas of minor flooding cannot be ruled out due to slow
moving thunderstorms producing heavy rain.

&&

.PRELIMINARY POINT TEMPS/POPS...

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

&&

.TAE WATCHES/WARNINGS/ADVISORIES...

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

&&

NEAR TERM...Moore
SHORT TERM...Lahr
LONG TERM...Lahr
AVIATION...Moore
MARINE...Lahr
FIRE WEATHER...Pullin
HYDROLOGY...Lahr

In the hours before

Local storm report, Jul 31, 2:18 PM CDT, 3 hours 14 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TALLAHASSEE FL
318 PM EDT SUN JUL 31 2016

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

0216 PM     TSTM WND DMG     5 S SHELLMAN            31.69N 84.62W
07/31/2016                   RANDOLPH           GA   911 CALL CENTER

            TREE DOWN ON HIGHWAY 41 SOUTH. TIME ESTIMATED BASED ON
            RADAR.

&&

EWESTON

Special weather statement, Jul 31, 3:28 PM CDT, 2 hours 4 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TALLAHASSEE FL
328 PM CDT SUN JUL 31 2016

ALZ066>069-312115-
DALE AL-HOUSTON AL-HENRY AL-GENEVA AL-
328 PM CDT SUN JUL 31 2016

...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL HOUSTON...NORTHEASTERN
GENEVA...SOUTHWESTERN HENRY AND SOUTHEASTERN DALE COUNTIES UNTIL 415
PM CDT...

AT 327 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM OVER TAYLOR...OR NEAR DOTHAN...MOVING SOUTH AT 5
MPH.

NICKEL SIZE HAIL AND WIND GUSTS UP TO 50 MPH WILL BE POSSIBLE WITH
THIS STORM.

LOCATIONS IMPACTED INCLUDE...
HEADLAND...DOTHAN...TAYLOR...MIDLAND CITY...KINSEY...SLOCOMB...
COWARTS...WEBB...PINCKARD...MALVERN...REHOBETH...GRIMES...NEWVILLE...
NAPIER FIELD...MEMPHIS...GREEN ACRES...ARDILLA...SMYRNA...
HODGESVILLE AND JONES CROSSROADS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM.
LIGHTNING CAN STRIKE 15 MILES AWAY FROM A THUNDERSTORM. SEEK A SAFE
SHELTER INSIDE A BUILDING OR VEHICLE.

&&

LAT...LON 3150 8548 3148 8521 3106 8536 3110 8565
TIME...MOT...LOC 2027Z 005DEG 6KT 3118 8549

11-MOORE

Local storm report, Jul 31, 4:04 PM CDT, 1 hour 28 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TALLAHASSEE FL
504 PM EDT SUN JUL 31 2016

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

0325 PM     TSTM WND DMG     5 SSE PUTNEY            31.40N 84.10W
07/31/2016                   MITCHELL           GA   UTILITY COMPANY

            TREE DOWN.

&&

EWESTON

Local storm report, Jul 31, 4:05 PM CDT, 1 hour 27 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TALLAHASSEE FL
505 PM EDT SUN JUL 31 2016

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

0315 PM     TSTM WND DMG     PUTNEY                  31.48N 84.12W
07/31/2016                   DOUGHERTY          GA   UTILITY COMPANY

            TREE DOWN

&&

EWESTON

Special weather statement, Jul 31, 4:15 PM CDT, 1 hour 17 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TALLAHASSEE FL
415 PM CDT SUN JUL 31 2016

ALZ065-312200-
COFFEE AL-
415 PM CDT SUN JUL 31 2016

...SIGNIFICANT WEATHER ADVISORY FOR NORTHERN COFFEE COUNTY UNTIL 500
PM CDT...

AT 415 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 9 MILES SOUTHEAST OF GLENWOOD...OR 9 MILES NORTH
OF ELBA...MOVING EAST AT 5 MPH.

WIND GUSTS UP TO 50 MPH WILL BE POSSIBLE WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE...
ELBA...NEW BROCKTON...LEE...CLINTONVILLE...RICHBURG...
CHESTNUT GROVE...BLUFF SPRING...CLOWERS CROSSROADS...ZOAR...
CARL FOLSOM A/P...DANLEYS CROSSROADS...ARCUS...WISE MILL...
MIXONS CROSSROADS...CAMP HUMMING HILLS...VICTORIA...JACK...
LOWRY MILL...NEWBY AND WOODLAND GROVE CHURCH.

LAT...LON 3153 8619 3153 8616 3154 8616 3154 8614
      3162 8615 3162 8585 3137 8586 3136 8620
TIME...MOT...LOC 2115Z 267DEG 5KT 3156 8606

11-MOORE

Special weather statement, Jul 31, 5:32 PM CDT, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 31, 4:31 AM CDT	Special Marine Warning	TAE		119 min
Jul 31, 12:44 PM CDT	Special Marine Warning	TAE		31 min
Jul 31, 1:14 PM CDT	Special Marine Warning	TAE		46 min
Jul 31, 1:30 PM CDT	Severe Thunderstorm Warning	TAE	Bay, Calhoun, Gulf	30 min
Jul 31, 3:21 PM CDT	Severe Thunderstorm Warning	TAE	Gadsden	39 min
Jul 31, 3:39 PM CDT	Severe Thunderstorm Warning	TAE	Jackson	36 min
Jul 31, 3:44 PM CDT	Severe Thunderstorm Warning	TAE	Leon	46 min
Jul 31, 4:56 PM CDT	Areal Flood Warning	TAE	Holmes, Jackson	2 hr
Jul 30, 7:38 PM CDT	Areal Flood Advisory	TAE	Dougherty, Irwin, Tift, Worth	112 min
Jul 31, 12:54 PM CDT	Severe Thunderstorm Warning	TAE	Randolph, Terrell	51 min
Jul 31, 1:34 PM CDT	Severe Thunderstorm Warning	TAE	Baker, Decatur, Early, Miller, Seminole	41 min
Jul 31, 2:02 PM CDT	Severe Thunderstorm Warning	TAE	Early, Miller, Seminole	43 min
Jul 31, 2:08 PM CDT	Severe Thunderstorm Warning	TAE	Dougherty, Mitchell, Worth	39 min
Jul 31, 2:22 PM CDT	Areal Flood Advisory	TAE	Baker, Early, Miller, Mitchell	3 hr
Jul 31, 2:45 PM CDT	Severe Thunderstorm Warning	TAE	Decatur, Seminole	45 min
Jul 31, 3:28 PM CDT	Special Weather Statement	TAE	Houston	47 min
Jul 31, 3:54 PM CDT	Severe Thunderstorm Warning	TAE	Geneva	51 min
Jul 31, 4:15 PM CDT	Special Weather Statement	TAE	Coffee	45 min
Jul 31, 4:17 PM CDT	Areal Flood Advisory	TAE	Dale, Geneva, Henry, Houston	118 min
Jul 31, 4:33 PM CDT	Severe Thunderstorm Warning	TAE	Geneva	27 min

Nearby

Special Weather Statements in Florida, 2016 Every special weather statement in 2016

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.