Alert archive / Florida / Tornado Warnings in 2018

Tornado Warning 3, NWS Tallahassee, FL

February 11, 2018Holmes County, Jackson County, Florida; Geneva County, Houston County, Alabama

NWS Tallahassee, FL issued this tornado warning at Feb 11, 2018, 3:21 AM CST for Holmes County, Jackson County, Florida; Geneva County, Houston County, Alabama. It was in force for 39 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: Feb 11, 2018, 3:21 AM CST (09:21 UTC)
Expired: Feb 11, 2018, 4:00 AM CST
In force: 39 min
Issued by: NWS Tallahassee, FL
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

Counties Geneva County, AL, Houston County, AL, Holmes County, FL, Jackson County, FL

The radar

The Ft Rucker radar (KEOX), 54 km from the middle of the area, began a volume at 09:23 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
Feb 11, 3:33 AM CST	TORNADO	Graceville, FL	ROOF DAMAGE TO THREE BUILDINGS AROUND DENTIST OFFICE IN GRACEVILLE.

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

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 00:00Z, 9.4 hours before the alert went out and 132 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: 285 J/kg
Mixed-layer CIN: -6 J/kg
Mixed-layer LCL: 519 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: 153 m²/s²
0-3 km storm-relative helicity: 171 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 0.5

Open this sounding in Storm Lab

The text

As transmitted.

750 
WFUS52 KTAE 110921
TORTAE
ALC061-069-FLC059-063-111000-
/O.NEW.KTAE.TO.W.0003.180211T0921Z-180211T1000Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Tallahassee FL
321 AM CST SUN FEB 11 2018

The National Weather Service in Tallahassee has issued a

* Tornado Warning for...
  Southeastern Geneva County in southeastern Alabama...
  South central Houston County in southeastern Alabama...
  Northwestern Jackson County in the Panhandle of Florida...
  Northeastern Holmes County in the Panhandle of Florida...

* Until 400 AM CST
    
* At 321 AM CST, a severe thunderstorm capable of producing a tornado
  was located near Graceville, moving northeast at 30 mph.

  HAZARD...Tornado. 

  SOURCE...Radar indicated rotation. 

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely. 

* This dangerous storm will be near...
  Graceville around 330 AM CST. 
  Cottonwood around 400 AM CST. 

Other locations impacted by this tornadic thunderstorm include
Garretts Crossroads, Tendil Crossing, Southern Junction, Sealy
Springs, Olympia Spa Resort, Madrid, Cobb Crossroads, Campbellton,
Browntown and Hodgesville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 3095 8566 3113 8540 3099 8526 3088 8557
TIME...MOT...LOC 0921Z 236DEG 25KT 3094 8558 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

42-DVD

2 follow-up statements

137 
WWUS52 KTAE 110933
SVSTAE

Severe Weather Statement
National Weather Service Tallahassee FL
333 AM CST SUN FEB 11 2018

ALC061-FLC059-110943-
/O.CAN.KTAE.TO.W.0003.000000T0000Z-180211T1000Z/
Geneva AL-Holmes FL-
333 AM CST SUN FEB 11 2018

...THE TORNADO WARNING FOR SOUTHEASTERN GENEVA AND NORTHEASTERN
HOLMES COUNTIES IS CANCELLED...
    
The tornadic thunderstorm which prompted the warning has moved out 
of the warned area. Therefore, the warning has been cancelled.

LAT...LON 3098 8552 3100 8550 3099 8549 3103 8549
      3113 8540 3099 8526 3092 8549 3094 8553
      3098 8553
TIME...MOT...LOC 0933Z 238DEG 26KT 3098 8547 

$$

ALC069-FLC063-111000-
/O.CON.KTAE.TO.W.0003.000000T0000Z-180211T1000Z/
Houston AL-Jackson FL-
333 AM CST SUN FEB 11 2018

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 400 AM CST FOR SOUTH
CENTRAL HOUSTON AND NORTHWESTERN JACKSON COUNTIES...
    
At 333 AM CST, a severe thunderstorm capable of producing a tornado
was located over Graceville, moving northeast at 30 mph.

HAZARD...Tornado. 

SOURCE...Radar indicated rotation. 

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely. 

This dangerous storm will be near...
  Cottonwood around 355 AM CST. 

Other locations impacted by this tornadic thunderstorm include
Olympia Spa Resort, Garretts Crossroads, Madrid, Campbellton,
Browntown, Hodgesville, Southern Junction, Sealy Springs and
Ellaville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 3098 8552 3100 8550 3099 8549 3103 8549
      3113 8540 3099 8526 3092 8549 3094 8553
      3098 8553
TIME...MOT...LOC 0933Z 238DEG 26KT 3098 8547 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

42-DVD

940 
WWUS52 KTAE 110943
SVSTAE

Severe Weather Statement
National Weather Service Tallahassee FL
343 AM CST SUN FEB 11 2018

ALC069-FLC063-111000-
/O.CON.KTAE.TO.W.0003.000000T0000Z-180211T1000Z/
Houston AL-Jackson FL-
343 AM CST SUN FEB 11 2018

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 400 AM CST FOR SOUTH
CENTRAL HOUSTON AND NORTH CENTRAL JACKSON COUNTIES...
    
At 343 AM CST, a severe thunderstorm capable of producing a tornado
was located near Cottonwood, moving northeast at 30 mph.

HAZARD...Tornado. 

SOURCE...Radar indicated rotation. 

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely. 

This dangerous storm will be near...
  Cottonwood around 355 AM CST. 

Other locations impacted by this tornadic thunderstorm include
Garretts Crossroads, Madrid, Hodgesville, Sealy Springs, Ellaville,
Olympia Spa Resort and Campbellton.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 3101 8546 3113 8540 3099 8526 3095 8538
      3099 8545
TIME...MOT...LOC 0943Z 238DEG 25KT 3101 8538 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

42-DVD

The office that day

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

Issued	Product	Office	Counties	Lasted
Feb 10, 6:11 PM CST	Special Marine Warning	TAE		49 min
Feb 10, 6:42 PM CST	Special Weather Statement	TAE	Bay	48 min
Feb 10, 6:55 PM CST	Special Marine Warning	TAE		50 min
Feb 10, 7:09 PM CST	Special Marine Warning	TAE		66 min
Feb 10, 8:01 PM CST	Special Marine Warning	TAE		59 min
Feb 11, 12:05 AM CST	Areal Flood Advisory	TAE	Walton	115 min
Feb 11, 12:40 AM CST	Flood Watch	TAE	Bay, Calhoun, Gadsden, Gulf, Holmes, Jackson and 2 more	29 hr
Feb 11, 1:54 AM CST	Areal Flood Advisory	TAE	Walton	2 hr
Feb 11, 2:02 AM CST	Special Marine Warning	TAE		118 min
Feb 11, 2:48 AM CST	Severe Thunderstorm Warning	TAE	Bay, Holmes, Jackson, Walton, Washington	72 min
Feb 11, 2:57 AM CST	Tornado Warning	TAE	Holmes	33 min
Feb 11, 3:58 AM CST	Tornado Warning	TAE	Jackson	47 min
Feb 11, 4:30 AM CST	River Flood Warning	TAE	Walton	52 hr
Feb 11, 4:37 AM CST	Severe Thunderstorm Warning	TAE	Bay, Calhoun, Jackson, Liberty	37 min
Feb 11, 5:50 AM CST	Flash Flood Warning	TAE	Walton	5 hr
Feb 11, 7:17 AM CST	Special Marine Warning	TAE		118 min
Feb 11, 9:19 AM CST	Rip Current Statement	TAE	Gulf	13 hr
Feb 11, 9:56 AM CST	Areal Flood Advisory	TAE	Bay, Holmes, Jackson, Walton, Washington	2 hr
Feb 11, 10:32 AM CST	Areal Flood Advisory	TAE	Bay, Walton, Washington	118 min
Feb 11, 12:01 PM CST	Areal Flood Advisory	TAE	Bay, Calhoun, Holmes, Jackson, Walton, Washington	119 min
Feb 11, 12:04 PM CST	Special Marine Warning	TAE		26 min
Feb 11, 12:21 PM CST	Areal Flood Advisory	TAE	Walton	114 min
Feb 11, 12:25 PM CST	Special Marine Warning	TAE		95 min
Feb 11, 1:26 PM CST	River Flood Warning	TAE	Walton, Washington	9 days
Feb 11, 1:48 PM CST	River Flood Warning	TAE	Calhoun	3 days
Feb 11, 1:50 PM CST	River Flood Warning	TAE	Holmes, Washington	5 days
Feb 11, 1:50 PM CST	Special Marine Warning	TAE		85 min
Feb 11, 1:54 PM CST	Areal Flood Advisory	TAE	Bay, Calhoun, Gulf	3 hr
Feb 11, 2:15 PM CST	Areal Flood Advisory	TAE	Walton	3 hr
Feb 11, 2:42 PM CST	Areal Flood Advisory	TAE	Bay, Calhoun, Franklin, Gulf, Liberty, Wakulla	3 hr
Feb 11, 3:11 PM CST	Special Marine Warning	TAE		64 min
Feb 11, 4:26 PM CST	Areal Flood Advisory	TAE	Holmes, Jackson, Walton, Washington	3 hr
Feb 11, 5:14 PM CST	Areal Flood Advisory	TAE	Walton	3 hr
Feb 11, 3:46 AM CST	Tornado Warning Tornado observed	TAE	Houston	32 min
Feb 11, 7:42 AM CST	River Flood Warning	TAE	Dale	63 hr
Feb 11, 7:42 AM CST	River Flood Warning	TAE	Geneva	4 days

Nearby

Tornado Warnings in Florida, 2018 Tornado Warnings in Alabama, 2018 Every tornado warning in 2018 Tornadoes 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.