Alert archive / Florida / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 43, NWS Tallahassee, FL

January 22, 2017Jefferson County, Florida

NWS Tallahassee, FL issued this severe thunderstorm warning at Jan 22, 2017, 7:30 AM EST for Jefferson County, Florida. It was in force for 30 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, 7:30 AM EST (12:30 UTC)
Expired: Jan 22, 2017, 8:00 AM EST
In force: 30 min
Issued by: NWS Tallahassee, FL
Area: Storm-based polygon
Hail: 0.88 in
Wind: 60.0 mph

County Jefferson County, FL

What was reported inside it

Time	Report	Where	Remark
Jan 22, 7:40 AM EST	TSTM WND DMG	Fincher, FL	POWER LINES DOWN IN NORTHERN JEFFERSON COUNTY

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 10 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, 3:20 AM EST	Tornado Watch	SPC	9 hr

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 0.5 hours before the alert went out and 43 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.

529 
WUUS52 KTAE 221230
SVRTAE
FLC065-221300-
/O.NEW.KTAE.SV.W.0043.170122T1230Z-170122T1300Z/

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

The National Weather Service in Tallahassee has issued a

* Severe Thunderstorm Warning for...
  North central Jefferson County in Big Bend of Florida...

* Until 800 AM EST

* At 729 AM EST, a severe thunderstorm was located 11 miles northwest
  of Monticello, moving northeast at 60 mph.

  HAZARD...60 mph wind gusts and nickel size hail. 

  SOURCE...Radar indicated. 

  IMPACT...Expect damage to roofs, siding, and trees. 

* Locations impacted include...
  Jarrott, Fincher, Festus and Alma. 

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 1000 AM EST for Big Bend of
Florida.

LAT...LON 3057 8400 3059 8400 3061 8401 3067 8401
      3066 8378 3065 8371
TIME...MOT...LOC 1229Z 238DEG 51KT 3067 8399 

HAIL...0.88IN
WIND...60MPH
 
$$

15-HARRIGAN

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, 6:21 AM EST, 1 hour 9 minutes earlier.

Area forecast discussion, Jan 22, 6:21 AM EST, 1 hour 9 minutes before

Area Forecast Discussion
National Weather Service Tallahassee FL
621 AM EST Sun Jan 22 2017

.AVIATION [Through 12Z Monday]...

Scattered showers and storms will develop this morning ahead of a
cold front and potential squall line to move from west to east
across the area this afternoon. Low pressure will develop across
the northern Gulf coast, deepen rapidly, and move northeast
towards northern Georgia this evening. Low level wind fields will
strengthen today with windy conditions by the afternoon gusts to
35 knots possible. Severe weather is possible through the day with
large hail, damaging winds, and tornadoes possible. Cold front
should clear the area by this evening with breezy conditions
continuing overnight.

&&

.PREV DISCUSSION [334 AM EST]...

.NEAR TERM [Through Today]...

A brief lull in the showers and thunderstorms is expected in the
predawn hours as the current MCS shifts northeastward. Attention
turns back west towards the upper trough which will move across
the ARKLATEX into MS/AL by late today. This will induce surface
cyclogenesis across southern MS with a surface low deepening
rapidly and moving northeast. Large scale ascent will increase
with showers and storms increasing in coverage and intensity this
morning in the warm sector and also along the westward moving cold
front progged to enter western fL panhandle and SE AL by midday.
All modes of severe weather is possible until the cold front moves
through. SPC has atleast an enhanced risk of severe weather
across all Tri-State counties today with a MODERATE RISK for
severe weather across SW GA and FL Big Bend counties. Again, all
modes of severe weather is possible including a strong tornado or
two.

Severe threat will decrease from west to east later this
afternoon as the cold front moves through and mid level dry air
advects in.

The surface wind field strengthens today as the aforementioned
surface low pressure deepens. Although models differ on placement
on stronger winds today, most agree that wind advisory criteria
will be met across portions of the Tri-State region this
afternoon. Therefore, have issued a wind advisory for this
afternoon.

.SHORT TERM [Tonight Through Tuesday]...

Wrap around moisture from the upper trough itself will keep slight
chances of rainfall in the forecast through Monday morning.
Nothing severe, just light showers as this feature moves away from
the area. Monday afternoon through Tuesday are dry with high
pressure building in. Highs in the 60s with lows in the 40s to
lower 50s.

.LONG TERM [Tuesday Night Through Sunday]...

Tranquil weather is anticipated through Wednesday at which time
another cold front will swing through Wednesday night and
Thursday. Colder air will accompany this system with highs Friday
and into the weekend in the 50s with lows in the 30s and
approaching freezing across SE AL and SW GA.

.MARINE...

A gale warning has been hoisted for all coastal water zones
beginning this afternoon through midday monday. Conditions will
continue to deteriorate as winds increase in response to
developing low pressure across the southeast united states.
Conditions appear to improve beginning Tuesday.

.FIRE WEATHER...

Other than high dispersions later this afternoon, no fire weather
concerns.

.HYDROLOGY...

Another round of precipitation is expected today. 1-2 inches of
rainfall is possible with locally higher amounts before rainfall
generally ends this evening. Where areas received heavy rainfall
last night, rivers are responding with the Choctawhatchee River at
Newton forecasted to reach flood stage today. Other area rivers
will need to be watched today and tonight.

&&

.PRELIMINARY POINT TEMPS/POPS...

Tallahassee   74  52  65  42  67 /  90  30  10   0   0
Panama City   71  56  63  47  63 /  90  30  10   0   0
Dothan        72  50  61  41  65 /  90  30  10   0   0
Albany        73  51  63  41  65 /  90  30  20   0   0
Valdosta      74  51  64  42  65 /  90  30  10   0   0
Cross City    75  55  65  43  66 /  80  50  10   0   0
Apalachicola  72  56  65  47  64 /  90  40  10   0   0

&&

.TAE WATCHES/WARNINGS/ADVISORIES...

FL...Wind Advisory from noon EST /11 AM CST/ today to 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 from noon today to 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 from 11 AM this morning to 5 PM CST this afternoon
     for Coffee-Dale-Geneva-Henry-Houston.

GM...Small Craft Advisory until 1 PM EST this afternoon 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.

     Gale Warning from 1 PM this afternoon to 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...Scholl
SHORT TERM...Scholl
LONG TERM...Scholl
AVIATION...Scholl
MARINE...Scholl
FIRE WEATHER...Scholl
HYDROLOGY...Scholl

In the hours before

Local storm report, Jan 22, 6:22 AM EST, 1 hour 8 minutes before

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

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

0615 AM     TSTM WND DMG     CONCORD                 30.66N 84.37W
01/22/2017                   GADSDEN            FL   LAW ENFORCEMENT

            POWER LINES DOWN ON FAIRBANKS FERRY ROAD

&&

DVD

Local storm report, Jan 22, 7:13 AM EST, 17 minutes before

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

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

0605 AM     TSTM WND DMG     1 ENE HINSON            30.66N 84.40W
01/22/2017                   GADSDEN            FL   911 CALL CENTER

            TREE DOWN ON MCBRIDE CT

&&

EWESTON

Local storm report, Jan 22, 7:14 AM EST, 16 minutes before

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

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

0605 AM     TSTM WND DMG     1 W CONCORD             30.66N 84.38W
01/22/2017                   GADSDEN            FL   911 CALL CENTER

            TREE DOWN ON MCNAIR RD.

&&

EWESTON

Local storm report, Jan 22, 7:18 AM EST, 12 minutes before

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

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

0710 AM     TSTM WND DMG     4 SSW SHILOH            30.88N 83.44W
01/22/2017                   BROOKS             GA   911 CALL CENTER

            TREE DOWN AT HIGHWAY 133 AND STUDSTILL RD.

&&

EWESTON

Local storm report, Jan 22, 7:24 AM EST, 6 minutes before

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

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

0720 AM     TSTM WND DMG     2 N VALDOSTA            30.88N 83.27W
01/22/2017                   LOWNDES            GA   911 CALL CENTER

            REPORT OF BUILDING DAMAGED AT 3000 BLOCK OF BEMISS ROAD.

&&

CAMP

Local storm report, Jan 22, 7:28 AM EST, 2 minutes before

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

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

0725 AM     TSTM WND DMG     5 NW VALDOSTA           30.90N 83.33W
01/22/2017                   LOWNDES            GA   911 CALL CENTER

            HOUSE DAMAGED ON SWAN DRIVE.

&&

EWESTON

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, 7:33 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, 3:10 PM EST	Severe Thunderstorm Warning	TAE	Leon, 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.