Alert archive / Florida / Tornado Warnings in 2018

Tornado Warning 5, NWS Tallahassee, FL

February 11, 2018Jackson County, Florida

NWS Tallahassee, FL issued this tornado warning at Feb 11, 2018, 3:58 AM CST for Jackson County, Florida. It was in force for 47 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: Feb 11, 2018, 3:58 AM CST (09:58 UTC)
Expired: Feb 11, 2018, 4:45 AM CST
In force: 47 min
Issued by: NWS Tallahassee, FL
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

County Jackson County, FL

The radar

The Ft Rucker radar (KEOX), 76 km from the middle of the area, began a volume at 10:01 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 00:00Z, 10.0 hours before the alert went out and 88 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.

175 
WFUS52 KTAE 110958
TORTAE
FLC063-111045-
/O.NEW.KTAE.TO.W.0005.180211T0958Z-180211T1045Z/

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

The National Weather Service in Tallahassee has issued a

* Tornado Warning for...
  Central Jackson County in the Panhandle of Florida...

* Until 445 AM CST
    
* At 358 AM CST, a severe thunderstorm capable of producing a tornado
  was located over Marianna, moving northeast at 35 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 tornadic thunderstorm will remain over mainly rural areas of
  central Jackson County, including the following locations: Haynes,
  Bascom, Dellwood, Greenwood, Two Egg, Hornsville, Cottondale, Blue
  Spring, Chipola Terrace and Buena Vista.

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 3100 8504 3100 8500 3097 8500 3096 8498
      3093 8498 3093 8497 3088 8493 3087 8494
      3084 8493 3083 8494 3082 8494 3081 8493
      3067 8531 3080 8538
TIME...MOT...LOC 0958Z 238DEG 32KT 3078 8528 

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

$$

42-DVD

2 follow-up statements

409 
WWUS52 KTAE 111008
SVSTAE

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

FLC063-111045-
/O.CON.KTAE.TO.W.0005.000000T0000Z-180211T1045Z/
Jackson FL-
408 AM CST SUN FEB 11 2018

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 445 AM CST FOR
NORTHEASTERN JACKSON COUNTY...
    
At 408 AM CST, a severe thunderstorm capable of producing a tornado
was located near Marianna, moving northeast at 35 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. 

Locations impacted include...
Marianna, Greenwood, Bascom, Haynes, Dellwood, Two Egg, Hornsville,
Blue Spring, Chipola Terrace, Buena Vista, Marianna Municipal A/P and
Lovedale.

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 3100 8503 3100 8500 3097 8500 3096 8498
      3093 8498 3093 8497 3088 8493 3087 8494
      3084 8493 3083 8494 3082 8494 3081 8493
      3071 8521 3085 8530
TIME...MOT...LOC 1008Z 241DEG 32KT 3081 8517 

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

$$

42-DVD

025 
WWUS52 KTAE 111040
SVSTAE

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

FLC063-111050-
/O.EXP.KTAE.TO.W.0005.000000T0000Z-180211T1045Z/
Jackson FL-
440 AM CST SUN FEB 11 2018

...THE TORNADO WARNING FOR NORTHEASTERN JACKSON COUNTY WILL EXPIRE AT
445 AM CST...
                
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore the warning will be allowed to expire.

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Tallahassee.

LAT...LON 3100 8503 3100 8500 3097 8500 3096 8498
      3093 8498 3093 8497 3088 8493 3087 8494
      3084 8493 3083 8494 3082 8494 3081 8493
      3071 8521 3085 8530
TIME...MOT...LOC 1040Z 238DEG 32KT 3094 8493 

$$

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, 3:21 AM CST	Tornado Warning	TAE	Holmes, Jackson	39 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

Nearby

Tornado Warnings in Florida, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.