Alert archive / Florida / Tornado Warnings in 2018

Tornado Warning 22, NWS Tallahassee, FL

August 1, 2018Wakulla County, Florida

NWS Tallahassee, FL issued this tornado warning at Aug 1, 2018, 7:26 AM EDT for Wakulla County, Florida. It was in force for 23 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: Aug 1, 2018, 7:26 AM EDT (11:26 UTC)
Expired: Aug 1, 2018, 7:49 AM EDT
In force: 23 min
Issued by: NWS Tallahassee, FL
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

County Wakulla County, FL

The radar

The Tallahassee radar (KTLH), 35 km from the middle of the area, began a volume at 11:27 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, 11.4 hours before the alert went out and 34 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: 1513 J/kg
Mixed-layer CIN: -9 J/kg
Mixed-layer LCL: 592 m above ground
0-6 km bulk shear: 15 kt
0-1 km storm-relative helicity: 38 m²/s²
0-3 km storm-relative helicity: 65 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

494 
WFUS52 KTAE 011126
TORTAE
FLC129-011200-
/O.NEW.KTAE.TO.W.0022.180801T1126Z-180801T1200Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Tallahassee FL
726 AM EDT WED AUG 1 2018

The National Weather Service in Tallahassee has issued a

* Tornado Warning for...
  Northeastern Wakulla County in Big Bend of Florida...

* Until 800 AM EDT.
    
* At 726 AM EDT, a severe thunderstorm capable of producing a tornado
  was located 7 miles southeast of St. Marks, moving northwest at 20
  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...
  St. Marks around 745 AM EDT.
  Woodville and Crawfordville around 800 AM EDT.

Other locations impacted by this tornadic thunderstorm include
Newport, Port Leon, Hyde Park and Plum Orchard.

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 3001 8416 3018 8431 3027 8415 3027 8414
      3014 8407 3010 8408 3010 8406 3009 8405
TIME...MOT...LOC 1126Z 137DEG 18KT 3009 8412 

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

$$

42-DVD

1 follow-up statement

185 
WWUS52 KTAE 011149
SVSTAE

Severe Weather Statement
National Weather Service Tallahassee FL
749 AM EDT WED AUG 1 2018

FLC129-011158-
/O.CAN.KTAE.TO.W.0022.000000T0000Z-180801T1200Z/
Wakulla FL-
749 AM EDT WED AUG 1 2018

...THE TORNADO WARNING FOR NORTHEASTERN WAKULLA COUNTY IS
CANCELLED...
                
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore, the warning has been cancelled.

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

LAT...LON 3001 8416 3018 8431 3027 8415 3027 8414
      3014 8407 3010 8408 3010 8406 3009 8405
TIME...MOT...LOC 1145Z 137DEG 18KT 3017 8421 

$$

42-DVD

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 31, 8:47 PM EDT	Areal Flood Advisory	TAE	Walton	3 hr
Jul 31, 10:00 PM EDT	Areal Flood Advisory	TAE	Walton	3 hr
Jul 31, 10:19 PM EDT	Special Marine Warning	TAE		41 min
Jul 31, 11:27 PM EDT	Special Marine Warning	TAE		63 min
Aug 1, 1:31 AM EDT	Areal Flood Advisory	TAE	Bay, Walton	3 hr
Aug 1, 2:26 AM EDT	Special Marine Warning	TAE		21 min
Aug 1, 5:01 AM EDT	Special Marine Warning	TAE		59 min
Aug 1, 6:25 AM EDT	Special Marine Warning	TAE		35 min
Aug 1, 7:24 AM EDT	Special Marine Warning	TAE		36 min
Aug 1, 8:10 AM EDT	Areal Flood Advisory	TAE	Wakulla	2 hr
Aug 1, 8:18 AM EDT	Areal Flood Advisory	TAE	Walton	117 min
Aug 1, 8:19 AM EDT	Special Marine Warning	TAE		56 min
Aug 1, 9:07 AM EDT	Special Marine Warning	TAE		68 min
Aug 1, 9:50 AM EDT	Special Marine Warning	TAE		55 min
Aug 1, 10:11 AM EDT	Rip Current Statement	TAE	Bay, Franklin, Gulf, Walton	13 hr
Aug 1, 10:13 AM EDT	Special Marine Warning	TAE		62 min
Aug 1, 10:18 AM EDT	Areal Flood Advisory	TAE	Walton	3 hr
Aug 1, 11:05 AM EDT	Areal Flood Advisory	TAE	Taylor	115 min
Aug 1, 12:10 PM EDT	Special Marine Warning	TAE		65 min
Aug 1, 3:14 PM EDT	Special Marine Warning	TAE		61 min
Aug 1, 4:07 PM EDT	Special Marine Warning	TAE		53 min
Aug 1, 6:10 PM EDT	Special Weather Statement	TAE	Calhoun, Liberty	50 min
Aug 1, 7:19 PM EDT	Areal Flood Advisory	TAE	Franklin, Gulf, Liberty	116 min

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.