Alert archive / Florida / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 76, NWS Tallahassee, FL

January 22, 2017Leon County, Wakulla County, Florida

NWS Tallahassee, FL issued this severe thunderstorm warning at Jan 22, 2017, 3:10 PM EST for Leon County, Wakulla County, Florida. It was in force for 20 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Jan 22, 2017, 3:10 PM EST (20:10 UTC)
Expired: Jan 22, 2017, 3:30 PM EST
In force: 20 min
Issued by: NWS Tallahassee, FL
Area: Storm-based polygon
Hail: 0.75 in
Wind: 70.0 mph

Counties Leon County, FL, Wakulla County, FL

The radar

The Tallahassee radar (KTLH), 19 km from the middle of the area, began a volume at 20:13 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.

What was reported inside it

Time	Report	Where	Remark
Jan 22, 3:27 PM EST	TSTM WND DMG	4 Sw Tallahassee, FL	TREES DOWN AT 4505 SPRING HILL ROAD

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

Did it verify

Verified. The Iowa Environmental Mesonet's Cow matched one storm report to this severe thunderstorm warning; the first came 17 minutes after it went out.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jan 22, 12:47 PM EST	Tornado Watch PDS	SPC	7 hr

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 8.2 hours before the alert went out and 22 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: 1298 J/kg
Mixed-layer CIN: -2 J/kg
Mixed-layer LCL: 635 m above ground
0-6 km bulk shear: 61 kt
0-1 km storm-relative helicity: 296 m²/s²
0-3 km storm-relative helicity: 441 m²/s²
Significant tornado parameter: 2.9
Supercell composite: 15.6

Open this sounding in Storm Lab

The text

As transmitted.

801 
WUUS52 KTAE 222010
SVRTAE
FLC073-129-222030-
/O.NEW.KTAE.SV.W.0076.170122T2010Z-170122T2030Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Tallahassee FL
310 PM EST SUN JAN 22 2017

The National Weather Service in Tallahassee has issued a

* Severe Thunderstorm Warning for...
  South central Leon County in Big Bend of Florida...
  Northwestern Wakulla County in Big Bend of Florida...

* Until 330 PM EST

* At 310 PM EST, a severe thunderstorm was located 13 miles northwest
  of Crawfordville, moving northeast at 70 mph.

  HAZARD...70 mph wind gusts. 

  SOURCE...Radar indicated. 

  IMPACT...Expect considerable tree damage. Damage is likely to 
           mobile homes, roofs, and outbuildings. 

* Locations impacted include...
  Tallahassee, Brown House, Tallahassee Regional A/P, Lake Bradford,
  Andrew, Helen, Lake Munson and Hilliardville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

A tornado watch remains in effect until 800 PM EST for Big Bend of
Florida.

LAT...LON 3017 8454 3026 8463 3046 8445 3038 8427
TIME...MOT...LOC 2010Z 224DEG 63KT 3029 8454 

HAIL...<.75IN
WIND...70MPH
 
$$

09-FOURNIER

What forecasters said that day

The local office's own words before this severe thunderstorm warning 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 severe thunderstorm warning went out at Jan 22, 2:44 PM EST, 26 minutes earlier.

Area forecast discussion, Jan 22, 2:44 PM EST, 26 minutes before

Area Forecast Discussion
National Weather Service Tallahassee FL
244 PM EST Sun Jan 22 2017

...High Risk of Severe Weather This Afternoon...

.NEAR TERM [Through Tonight]...
Rare high risk of severe weather along the northeastern Gulf Coast
this afternoon. PDS Tornado Watch is in effect for entire area
through early evening. 18Z KTAE sounding is incredibly sobering
with deep layer shear near 70kt, low-level shear near 35kt, with
over 2000j/kg of SBCAPE. Broken line of supercells will sweep
across the region through the afternoon, with a few long-lived
tornadoes possible, as rapidly deepening low-pressure lifts into
north-central Alabama.

Outside of the storms, very windy conditions are expected, even
behind the line of storms, owing to the deepening surface low.
Will maintain the wind advisory. Conditions will improve after
sunset with drier and cooler air moving in.

.SHORT TERM [Monday Through Tuesday Night]...
Sfc and upper low will become vertically stacked on Monday with
deep northwesterly flow across the area. Expect a grey and breezy
day with a few showers possible along the northern tier.
Temperatures will be closer to seasonal normals the next couple of
days, with highs in the 60s and lows in the 40s.

.LONG TERM [Wednesday Through Sunday]...
A ridge will build over the southeastern states for the middle of
the week with warming temperatures and dry weather. Another upper
trough will approach by late in the work week, bringing another
chance of rain. Severe chances appear rather low with system at
the moment.

&&

.AVIATION [Through 18Z Monday]...
All area terminals have a threat for severe storms today with IFR
conditions and wind gusts to 50 knots. The convection will end
from west to east this evening with periods of MVFR ceilings
possibly rotating into the region from the north later tonight.
Non-convective wind gusts to 30 kt will be common this evening and
again Monday morning.

&&

.MARINE...
Severe storms and gale conditions will continue into the evening.
The severe storm threat will end from west to east. However, the
gale conditions will continue through Monday morning. Conditions
will improve through the middle of the week.

&&

.FIRE WEATHER...
Windy conditions are expected through Monday. However, fuel
moisture levels will be very high.

&&

.HYDROLOGY...
Area rivers and streams will be on the rise following the last
several days of rain. Minor to moderate flooding is expected on
the Choctawhatchee Basin. Minor flooding is forecast elsewhere.

&&

.PRELIMINARY POINT TEMPS/POPS...

Tallahassee   53  65  43  68  48 /  30  10   0   0   0
Panama City   57  65  49  64  57 /  30  10   0   0   0
Dothan        51  62  42  65  48 /  30  10   0   0   0
Albany        51  63  42  66  46 /  30  20   0   0   0
Valdosta      52  64  43  67  46 /  30  10   0   0   0
Cross City    56  66  45  68  47 /  60  10   0   0   0
Apalachicola  58  66  48  66  56 /  50  10   0   0   0

&&

.TAE WATCHES/WARNINGS/ADVISORIES...
FL...Wind Advisory until 6 PM EST /5 PM CST/ this evening for Calhoun-
     Central Walton-Coastal Bay-Coastal Dixie-Coastal Franklin-
     Coastal Gulf-Coastal Jefferson-Coastal Taylor-Coastal
     Wakulla-Gadsden-Holmes-Inland Bay-Inland Dixie-Inland
     Franklin-Inland Gulf-Inland Jefferson-Inland Taylor-Inland
     Wakulla-Jackson-Lafayette-Leon-Liberty-Madison-North Walton-
     South Walton-Washington.

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

     High Surf Advisory until 1 AM EST /midnight CST/ Tuesday for
     Coastal Bay-Coastal Gulf-South Walton.

GA...Wind Advisory until 6 PM EST this evening for Baker-Ben Hill-
     Berrien-Brooks-Calhoun-Clay-Colquitt-Cook-Decatur-Dougherty-
     Early-Grady-Irwin-Lanier-Lee-Lowndes-Miller-Mitchell-
     Quitman-Randolph-Seminole-Terrell-Thomas-Tift-Turner-Worth.

AL...Wind Advisory until 5 PM CST this afternoon for Coffee-Dale-
     Geneva-Henry-Houston.

GM...Gale Warning until 1 PM EST Monday for Apalachee Bay or Coastal
     Waters From Keaton Beach to Ochlockonee River Fl out to 20
     Nm-Coastal Waters From Ochlockonee River to Apalachicola Fl
     out to 20 Nm-Coastal waters from Suwannee River to Keaton
     Beach out 20 NM-Coastal waters from Apalachicola to Destin
     FL out 20 NM-Waters from Suwannee River to Apalachicola FL
     from 20 to 60 NM-Waters from Apalachicola to Destin FL from
     20 to 60 NM.

&&

NEAR TERM...Camp
SHORT TERM...Camp
LONG TERM...Camp
AVIATION...Camp
MARINE...Camp
FIRE WEATHER...Camp
HYDROLOGY...Camp

In the hours before

Local storm report, Jan 22, 10:23 AM EST, 4 hours 47 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TALLAHASSEE FL
1023 AM EST SUN JAN 22 2017

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

1000 AM     FLOOD            4 W LAKE PARK           30.68N 83.26W
01/22/2017                   LOWNDES            GA   PUBLIC

            COCORAHS OBSERVED MEASURED 4 INCHES OF RAIN SINCE 6 AM
            WITH CONSIDERABLE PONDING OF WATER ON HIGHWAY 376.
            INTERSTATE 75 EXIT 5 INTERCHANGE HAS FLOODED LANES ALONG
            LAKES BLVD.

&&

WOOL

Local storm report, Jan 22, 11:07 AM EST, 4 hours 3 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TALLAHASSEE FL
1107 AM EST SUN JAN 22 2017

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

0900 AM     TSTM WND DMG     KILLEARN LAKES          30.58N 84.22W
01/22/2017                   LEON               FL   PUBLIC

            SEVERAL LARGE TREES DOWN NEAR KILLEARN LAKES AND DEERLAKE

&&

EWESTON

Local storm report, Jan 22, 11:28 AM EST, 3 hours 42 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TALLAHASSEE FL
1128 AM EST SUN JAN 22 2017

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

1110 AM     HAIL             DE FUNIAK SPRINGS       30.72N 86.12W
01/22/2017  E1.00 INCH       WALTON             FL   PUBLIC

            PHOTO RECEIVED VIA EMAIL.

&&

WOOL

Local storm report, Jan 22, 12:09 PM EST, 3 hours 1 minute before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TALLAHASSEE FL
1209 PM EST SUN JAN 22 2017

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

0900 AM     TSTM WND DMG     1 S BLOCKER             30.57N 84.27W
01/22/2017                   LEON               FL   PUBLIC

            TREES DOWN

&&

EWESTON

Local storm report, Jan 22, 2:23 PM EST, 47 minutes before

PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE TALLAHASSEE FL
223 PM EST SUN JAN 22 2017

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

0258 AM     TORNADO          5 NNE THOMASVILLE MUNIC 30.91N 83.96W
01/22/2017                   THOMAS             GA   911 CALL CENTER

            *** 3 INJ *** DAMAGE REPORTED IN THOMAS COUNTY WITH
            DUAL-POL TDS. 3 INJURIES REPORTED

&&

RH

Local storm report, Jan 22, 2:27 PM EST, 43 minutes before

PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE TALLAHASSEE FL
227 PM EST SUN JAN 22 2017

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

0345 AM     TORNADO          4 SE ADEL               31.09N 83.38W
01/22/2017                   COOK               GA   EMERGENCY MNGR

            *** 8 FATAL *** EMS RELAYED REPORT FROM EMERGENCY MANAGER
            THAT THESE FATALTITIES HAD OCCURRED.

&&

RH

The office that day

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

Issued	Product	Office	Counties	Lasted
Jan 22, 1:24 AM EST	Severe Thunderstorm Warning	TAE	Jackson, Washington	24 min
Jan 22, 3:39 AM EST	Wind Advisory	TAE	Bay, Calhoun, Dixie, Franklin, Gadsden, Gulf and 10 more	14 hr
Jan 22, 3:47 AM EST	Gale Warning	TAE		33 hr
Jan 22, 5:34 AM EST	Severe Thunderstorm Warning	TAE	Gadsden	56 min
Jan 22, 6:33 AM EST	Severe Thunderstorm Warning	TAE	Calhoun, Gadsden, Leon, Liberty	42 min
Jan 22, 7:09 AM EST	Severe Thunderstorm Warning	TAE	Gadsden, Leon, Liberty	36 min
Jan 22, 7:30 AM EST	Severe Thunderstorm Warning	TAE	Jefferson	30 min
Jan 22, 7:33 AM EST	Areal Flood Advisory	TAE	Gadsden, Liberty	117 min
Jan 22, 7:37 AM EST	Special Marine Warning	TAE		98 min
Jan 22, 7:52 AM EST	Severe Thunderstorm Warning	TAE	Jefferson, Madison	38 min
Jan 22, 7:54 AM EST	Severe Thunderstorm Warning	TAE	Bay, Calhoun, Liberty	51 min
Jan 22, 8:05 AM EST	Severe Thunderstorm Warning	TAE	Bay, Calhoun	40 min
Jan 22, 8:20 AM EST	Special Marine Warning	TAE		55 min
Jan 22, 8:35 AM EST	Severe Thunderstorm Warning	TAE	Bay, Walton, Washington	40 min
Jan 22, 8:37 AM EST	Severe Thunderstorm Warning	TAE	Gadsden, Jefferson, Leon	38 min
Jan 22, 8:40 AM EST	Severe Thunderstorm Warning	TAE	Bay, Calhoun, Gadsden, Jackson, Liberty, Washington	50 min
Jan 22, 8:44 AM EST	Tornado Warning	TAE	Gadsden, Leon	31 min
Jan 22, 8:59 AM EST	Severe Thunderstorm Warning	TAE	Walton, Washington	16 min
Jan 22, 9:07 AM EST	Severe Thunderstorm Warning	TAE	Holmes, Jackson, Walton, Washington	38 min
Jan 22, 9:08 AM EST	Severe Thunderstorm Warning	TAE	Bay, Calhoun, Jackson, Walton, Washington	36 min
Jan 22, 9:09 AM EST	Tornado Warning	TAE	Leon	36 min
Jan 22, 9:11 AM EST	Special Marine Warning	TAE		64 min
Jan 22, 9:11 AM EST	Severe Thunderstorm Warning	TAE	Gadsden, Jackson	49 min
Jan 22, 9:25 AM EST	River Flood Warning	TAE	Holmes, Washington	7 days
Jan 22, 9:25 AM EST	River Flood Warning	TAE	Walton, Washington	9 days
Jan 22, 9:33 AM EST	Severe Thunderstorm Warning	TAE	Madison	57 min
Jan 22, 9:51 AM EST	Severe Thunderstorm Warning	TAE	Calhoun, Gadsden, Liberty	39 min
Jan 22, 9:53 AM EST	Tornado Warning	TAE	Calhoun, Gadsden, Liberty	37 min
Jan 22, 9:53 AM EST	Tornado Warning	TAE	Gadsden	37 min
Jan 22, 10:37 AM EST	Severe Thunderstorm Warning	TAE	Walton	23 min
Jan 22, 10:38 AM EST	Tornado Warning	TAE	Gadsden, Leon	37 min
Jan 22, 10:57 AM EST	Severe Thunderstorm Warning	TAE	Holmes, Walton	48 min
Jan 22, 12:16 PM EST	Special Marine Warning	TAE		119 min
Jan 22, 12:23 PM EST	Severe Thunderstorm Warning	TAE	Holmes, Walton	52 min
Jan 22, 12:43 PM EST	Tornado Warning	TAE	Walton	32 min
Jan 22, 1:12 PM EST	Severe Thunderstorm Warning	TAE	Bay, Holmes, Walton, Washington	48 min
Jan 22, 1:14 PM EST	Special Marine Warning	TAE		61 min
Jan 22, 1:34 PM EST	Tornado Warning	TAE	Bay, Gulf	41 min
Jan 22, 1:39 PM EST	Severe Thunderstorm Warning	TAE	Holmes, Jackson, Washington	34 min
Jan 22, 1:52 PM EST	Tornado Warning	TAE	Bay	23 min
Jan 22, 1:54 PM EST	River Flood Warning	TAE	Calhoun, Franklin, Gulf, Liberty	7 days
Jan 22, 1:55 PM EST	Severe Thunderstorm Warning	TAE	Holmes, Jackson, Washington	21 min
Jan 22, 2:04 PM EST	Special Marine Warning	TAE		86 min
Jan 22, 2:08 PM EST	Tornado Warning	TAE	Bay, Calhoun, Gulf, Liberty	11 min
Jan 22, 2:35 PM EST	Tornado Warning	TAE	Calhoun, Gadsden, Liberty	8 min
Jan 22, 2:35 PM EST	Tornado Warning	TAE	Franklin, Gulf	25 min
Jan 22, 2:39 PM EST	Tornado Warning	TAE	Jackson	36 min
Jan 22, 2:50 PM EST	Tornado Warning	TAE	Liberty, Wakulla	25 min
Jan 22, 2:53 PM EST	Tornado Warning Tornado observed	TAE	Franklin, Liberty, Wakulla	20 min
Jan 22, 3:26 PM EST	Severe Thunderstorm Warning	TAE	Jefferson, Leon, Wakulla	34 min
Jan 22, 3:43 PM EST	Coastal Flood Warning	TAE	Dixie, Franklin, Gulf, Jefferson, Taylor, Wakulla	6 hr
Jan 22, 3:53 PM EST	Severe Thunderstorm Warning	TAE	Jefferson, Madison	37 min
Jan 22, 4:57 PM EST	Severe Thunderstorm Warning	TAE	Dixie, Lafayette, Taylor	18 min

Nearby

Severe Thunderstorm Warnings in Florida, 2017 Every severe thunderstorm warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.