Alert archive / Florida / Tornado Warnings in 2018

Tornado Warning 19, NWS Tallahassee, FL

May 28, 2018Gadsden County, Liberty County, Florida

NWS Tallahassee, FL issued this tornado warning at May 28, 2018, 7:31 AM EDT for Gadsden County, Liberty County, Florida. It was in force for 29 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
May 28, 2018, 7:31 AM EDT (11:31 UTC)
Expired
May 28, 2018, 8:00 AM EDT
In force
29 min
Issued by
NWS Tallahassee, FL
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

Counties Gadsden County, FL, Liberty County, FL

The radar

The Tallahassee radar (KTLH), 41 km from the middle of the area, began a volume at 11:31 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, 11.5 hours before the alert went out and 44 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-pSkew-T log-p diagram, Tallahassee Rgnl, FL at 00:00Z on 2018-05-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 263 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Tallahassee Rgnl, FL at 00:00Z on 2018-05-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 246 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
263 J/kg
Mixed-layer CIN
-23 J/kg
Mixed-layer LCL
553 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
246 m²/s²
0-3 km storm-relative helicity
337 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.4

Open this sounding in Storm Lab

The text

As transmitted.

566 
WFUS52 KTAE 281131
TORTAE
FLC039-077-281200-
/O.NEW.KTAE.TO.W.0019.180528T1131Z-180528T1200Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Tallahassee FL
731 AM EDT MON MAY 28 2018

The National Weather Service in Tallahassee has issued a

* Tornado Warning for...
  Southwestern Gadsden County in Big Bend of Florida...
  Northeastern Liberty County in Big Bend of Florida...

* Until 800 AM EDT.
    
* At 730 AM EDT, a severe thunderstorm capable of producing a tornado
  was located 11 miles south of Greensboro, or 14 miles southwest of
  Quincy, moving north at 25 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...
  Greensboro around 800 AM EDT.

Other locations impacted by this tornadic thunderstorm include Lowry,
Juniper, Sycamore, Roy and Sawdust.

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 3057 8492 3059 8482 3059 8468 3037 8467
      3036 8467 3037 8468 3036 8468 3035 8475
TIME...MOT...LOC 1130Z 158DEG 22KT 3040 8473 

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

$$

ADL

The office that day

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

IssuedProductOfficeCountiesLasted
May 27, 10:32 PM EDTRiver Flood WarningTAEHolmes, Washington35 hr
May 27, 10:32 PM EDTRiver Flood WarningTAEWalton, Washington35 hr
May 28, 9:16 AM EDTSpecial Marine WarningTAE44 min
May 28, 9:55 AM EDTSpecial Marine WarningTAE35 min
May 28, 11:10 AM EDTCoastal Flood AdvisoryTAEBay, Walton12 hr
May 28, 3:04 PM EDTFlash Flood WarningTAEWalton3 hr
May 28, 4:22 PM EDTRiver Flood WarningTAEWalton29 hr
May 28, 5:54 PM EDTFlash Flood WarningTAEWalton4 hr

Nearby

Tornado Warnings in Florida, 2018Every tornado warning in 2018Tornadoes 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.