Alert archive / Florida / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 85, NWS Tallahassee, FL

April 3, 2012Jefferson County, Leon County, Florida

NWS Tallahassee, FL issued this severe thunderstorm warning at Apr 3, 2012, 3:26 PM EDT for Jefferson County, Leon County, Florida. It was in force for 34 min. 4 reports 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
Apr 3, 2012, 3:26 PM EDT (19:26 UTC)
Expired
Apr 3, 2012, 4:00 PM EDT
In force
34 min
Issued by
NWS Tallahassee, FL
Area
Storm-based polygon

Counties Jefferson County, FL, Leon County, FL

The radar

The Tallahassee radar (KTLH), 25 km from the middle of the area, began a volume at 19:26 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

TimeReportWhereRemark
Apr 3, 3:31 PM EDTTSTM WND DMGS Bradfordville, FLTREE DOWN ON KINHEGA DRIVE NEAR THOMASVILLE ROAD.
Apr 3, 3:59 PM EDTHAIL 11 Wnw Concord, FLDIME TO QUARTER SIZED HAIL COVERING YARD NEAR MOCCASIN GAP AND MICCOSUKEE ROAD. REPORT RELAYED BY WCTV.
Apr 3, 4:03 PM EDTHAIL 1Ese Miccosukee, FLQUARTER SIZED HAIL REPORTED AT 14000 MOCCASIN GAP ROAD IN MICCOSUKEE.
Apr 3, 4:08 PM EDTTSTM WND DMG1 Sw Pisgah Church, FLTREE DOWN NEAR CENTERVILLE ROAD AND TREASURE OAKS

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 12:00Z, 7.4 hours before the alert went out and 22 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 12:00Z on 2012-04-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 984 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 12:00Z on 2012-04-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 16 square meters per square second.1939Sfc1 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
984 J/kg
Mixed-layer CIN
-88 J/kg
Mixed-layer LCL
995 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
16 m²/s²
0-3 km storm-relative helicity
89 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

969 
WUUS52 KTAE 031926
SVRTAE
FLC065-073-032000-
/O.NEW.KTAE.SV.W.0085.120403T1926Z-120403T2000Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TALLAHASSEE FL
326 PM EDT TUE APR 3 2012

THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WEST CENTRAL JEFFERSON COUNTY IN FLORIDA...
  NORTHEASTERN LEON COUNTY IN FLORIDA...

* UNTIL 400 PM EDT

* AT 322 PM EDT...THE NATIONAL WEATHER SERVICE HAS DETECTED A SEVERE
  THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60
  MPH.  THIS STORM WAS LOCATED NEAR FALLSCHASE...AND MOVING NORTHEAST
  AT 30 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  CHAIRES...BRADFORDVILLE...CAPITOLA...PISGAH CHURCH...BAUM...
  LLOYD...MOCCASIN GAP...CONCORD AND MICCOSUKEE

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY. PEOPLE OUTSIDE SHOULD MOVE INSIDE A STRONG BUILDING BUT
AWAY FROM WINDOWS.

&&

LAT...LON 3068 8413 3050 8392 3039 8422 3049 8430
TIME...MOT...LOC 1926Z 231DEG 24KT 3050 8419

$$

15-HARRIGAN
1 follow-up statement
280 
WWUS52 KTAE 031935
SVSTAE

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TALLAHASSEE FL
335 PM EDT TUE APR 3 2012

FLC065-073-032000-
/O.CON.KTAE.SV.W.0085.000000T0000Z-120403T2000Z/
LEON FL-JEFFERSON FL-
335 PM EDT TUE APR 3 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 PM EDT
FOR WEST CENTRAL JEFFERSON AND NORTHEASTERN LEON COUNTIES...

AT 334 PM EDT/234 PM CDT/...A SEVERE THUNDERSTORM WAS REPORTED
CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM
WAS LOCATED 235 MILES SOUTHEAST OF LLOYD...MOVING NORTHEAST AT 30
MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
CONCORD...BAUM...MICCOSUKEE...KILLEARN ESTATES...MOCCASIN GAP...
PISGAH CHURCH AND BRADFORDVILLE

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.

&&

LAT...LON 3044 8416 3054 8426 3068 8413 3050 8392
TIME...MOT...LOC 1935Z 231DEG 24KT 2766 8184

$$

15-HARRIGAN

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 3, 7:19 AM EDTSpecial Marine WarningTAE86 min
Apr 3, 3:02 PM EDTSevere Thunderstorm WarningTAEGadsden, Leon, Wakulla28 min
Apr 3, 3:20 PM EDTSevere Thunderstorm WarningTAEGadsden, Leon25 min
Apr 3, 3:28 PM EDTSevere Thunderstorm WarningTAEWakulla32 min
Apr 3, 3:38 PM EDTSevere Thunderstorm WarningTAEGadsden, Leon37 min
Apr 3, 3:48 PM EDTSevere Thunderstorm WarningTAEJefferson, Leon27 min
Apr 3, 3:56 PM EDTSevere Thunderstorm WarningTAELeon34 min
Apr 3, 4:06 PM EDTSevere Thunderstorm WarningTAEJefferson, Leon24 min
Apr 3, 4:16 PM EDTSevere Thunderstorm WarningTAEJefferson, Leon29 min
Apr 3, 4:22 PM EDTSpecial Weather StatementTAEWashington38 min
Apr 3, 4:28 PM EDTSevere Thunderstorm WarningTAEJefferson, Leon32 min
Apr 3, 4:57 PM EDTSevere Thunderstorm WarningTAEJefferson33 min

Nearby

Severe Thunderstorm Warnings in Florida, 2012Every severe thunderstorm warning in 2012

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.