Alert archive / Florida / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 21, NWS Tallahassee, FL

February 15, 20165 counties in Florida; Seminole County, Georgia

NWS Tallahassee, FL issued this severe thunderstorm warning at Feb 15, 2016, 7:28 PM CST for 5 counties in Florida; Seminole County, Georgia. It was in force for 62 min. 6 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
Feb 15, 2016, 7:28 PM CST (01:28 UTC)
Expired
Feb 15, 2016, 8:30 PM CST
In force
62 min
Issued by
NWS Tallahassee, FL
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Bay County, FL, Calhoun County, FL, Gulf County, FL, Jackson County, FL, Washington County, FL, Seminole County, GA

The radar

The Eglin Afb radar (KEVX), 48 km from the middle of the area, began a volume at 01:31 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.

What was reported inside it

TimeReportWhereRemark
Feb 15, 7:33 PM CSTTSTM WND DMG1 N Chipley, FLTREE DOWN ON THE CORNER OF A CARPORT ON THE NORTH SIDE OF CHIPLEY. OTHER REPORTS OF TREE DAMAGE IN CHIPLEY. PUBLIC REPORTS TO WMBB-TV FACEBOOK PAGE.
Feb 15, 7:36 PM CSTTSTM WND DMGWausau, FLNUMEROUS REPORTS OF TREES AND POWER LINES DOWN THROUGHOUT WASHINGTON COUNTY
Feb 15, 7:47 PM CSTTSTM WND DMGNnw Steele City, FLTREES SNAPPED NEAR CORBIN ROAD AND HIGHWAY 231. PUBLIC REPORT TO WJHG-TV FACEBOOK PAGE.
Feb 15, 7:55 PM CSTTSTM WND DMGMarianna, FLSEVERAL REPORTS OF TREES AND POWER LINES DOWN THROUGHOUT JACKSON COUNTY
Feb 15, 8:00 PM CSTTSTM WND DMGMarianna, FLROOF BLOWN OFF HOUSE. NUMEROUS TREES AND POWER LINES DOWN ACROSS CITY.
Feb 15, 8:00 PM CSTTORNADOSw Marianna, FLPOSSIBLE TORNADO TOUCHDOWN BUT NO DAMAGE EXCEPT FOR TREES DOWN IN A FIELD.

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

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Feb 15, 12:02 PM CSTTornado WatchSPC9 hr
Feb 15, 7:07 PM CSTTornado WatchSPC5 hr

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 00:00Z, 1.5 hours before the alert went out and 114 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 2016-02-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 42 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 2016-02-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 366 square meters per square second.1939587897Sfc1 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
42 J/kg
Mixed-layer CIN
-128 J/kg
Mixed-layer LCL
940 m above ground
0-6 km bulk shear
65 kt
0-1 km storm-relative helicity
366 m²/s²
0-3 km storm-relative helicity
383 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

As transmitted.

549 
WUUS52 KTAE 160128
SVRTAE
FLC005-013-045-063-133-GAC253-160230-
/O.NEW.KTAE.SV.W.0021.160216T0128Z-160216T0230Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TALLAHASSEE FL
828 PM EST MON FEB 15 2016

THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  BAY COUNTY IN THE PANHANDLE OF FLORIDA...
  JACKSON COUNTY IN THE PANHANDLE OF FLORIDA...
  NORTHWESTERN GULF COUNTY IN THE PANHANDLE OF FLORIDA...
  CALHOUN COUNTY IN THE PANHANDLE OF FLORIDA...
  EASTERN WASHINGTON COUNTY IN THE PANHANDLE OF FLORIDA...
  SEMINOLE COUNTY IN SOUTHWESTERN GEORGIA...

* UNTIL 930 PM EST/830 PM CST/

* AT 827 PM EST /727 PM CST/...SEVERE THUNDERSTORMS WERE LOCATED
  ALONG A LINE EXTENDING FROM 7 MILES EAST OF GRACEVILLE TO 8 MILES
  WEST OF PANAMA CITY BEACH...MOVING EAST AT 45 MPH.

  HAZARD...60 MPH WIND GUSTS. 

  SOURCE...RADAR INDICATED. 

  IMPACT...EXPECT DAMAGE TO ROOFS...SIDING AND TREES. 

* LOCATIONS IMPACTED INCLUDE...
  PANAMA CITY...LYNN HAVEN...PANAMA CITY BEACH...CALLAWAY...VERNON...
  CHIPLEY...BLOUNTSTOWN...MARIANNA...SPRINGFIELD...MEXICO BEACH...
  HILAND PARK...STONEMILL CREEK...TYNDALL AIR FORCE BASE...
  BRADFORD...MALONE...WEWAHITCHKA...SNEADS...COTTONDALE...GRAND RIDGE
  AND GREENWOOD.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM EST/900 PM CST/ FOR
SOUTHEASTERN ALABAMA AND CENTRAL FLORIDA. A TORNADO WATCH ALSO
REMAINS IN EFFECT UNTIL 100 AM EST/MIDNIGHT CST/ FOR CENTRAL FLORIDA
AND SOUTHWESTERN GEORGIA.

LAT...LON 3100 8538 3099 8476 3052 8499 3031 8503
      2991 8537 3010 8570 3002 8547 3003 8539
      3013 8551 3018 8573 3032 8552 3036 8555
      3023 8572 3031 8576 3024 8585 3015 8574
      3027 8599
TIME...MOT...LOC 0127Z 261DEG 41KT 3098 8539 3025 8599 

HAIL...<.75IN
WIND...60MPH
 
$$

15-HARRIGAN
1 follow-up statement
770 
WWUS52 KTAE 160220
SVSTAE

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TALLAHASSEE FL
920 PM EST MON FEB 15 2016

FLC133-160230-
/O.CAN.KTAE.SV.W.0021.000000T0000Z-160216T0230Z/
WASHINGTON FL-
920 PM EST MON FEB 15 2016

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN WASHINGTON COUNTY IS
CANCELLED...

THE STORMS WHICH PROMPTED THE WARNING HAVE MOVED OUT OF THE WARNED
AREA. THEREFORE THE WARNING HAS BEEN CANCELLED.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM EST/900 PM CST/ FOR
CENTRAL FLORIDA. A TORNADO WATCH ALSO REMAINS IN EFFECT UNTIL 100 AM
EST/MIDNIGHT CST/ FOR CENTRAL FLORIDA AND SOUTHWESTERN GEORGIA.

LAT...LON 3099 8497 3098 8476 3052 8499 3031 8503
      2991 8537 3010 8570 3002 8547 3003 8539
      3013 8551 3017 8568 3028 8559 3032 8552
      3034 8553
TIME...MOT...LOC 0220Z 261DEG 41KT 3107 8472 3034 8533 

$$

FLC005-013-045-063-GAC253-160230-
/O.CON.KTAE.SV.W.0021.000000T0000Z-160216T0230Z/
BAY FL-JACKSON FL-GULF FL-CALHOUN FL-SEMINOLE GA-
920 PM EST MON FEB 15 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 930 PM
EST/830 PM CST/ FOR SOUTHEASTERN BAY...JACKSON...NORTHWESTERN GULF...
CALHOUN COUNTIES IN THE PANHANDLE OF FLORIDA AND SEMINOLE COUNTIES IN
SOUTHWESTERN GEORGIA...

AT 920 PM EST /820 PM CST/...SEVERE THUNDERSTORMS WERE LOCATED ALONG
A LINE EXTENDING FROM 7 MILES SOUTH OF COLQUITT TO 16 MILES NORTHWEST
OF STONEMILL CREEK...MOVING EAST AT 45 MPH.

HAZARD...60 MPH WIND GUSTS. 

SOURCE...RADAR INDICATED. 

IMPACT...EXPECT DAMAGE TO ROOFS...SIDING AND TREES. 

LOCATIONS IMPACTED INCLUDE...
PANAMA CITY...LYNN HAVEN...CALLAWAY...BLOUNTSTOWN...SPRINGFIELD...
MEXICO BEACH...HILAND PARK...STONEMILL CREEK...TYNDALL AIR FORCE
BASE...WEWAHITCHKA...SNEADS...GRAND RIDGE...ALTHA...SCOTTS FERRY...
CYPRESS...MOOSE POND...WHITE POND...RED OAK...CHASON AND NETTLE
RIDGE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM EST/900 PM CST/ FOR
CENTRAL FLORIDA. A TORNADO WATCH ALSO REMAINS IN EFFECT UNTIL 100 AM
EST/MIDNIGHT CST/ FOR CENTRAL FLORIDA AND SOUTHWESTERN GEORGIA.

LAT...LON 3099 8497 3098 8476 3052 8499 3031 8503
      2991 8537 3010 8570 3002 8547 3003 8539
      3013 8551 3017 8568 3028 8559 3032 8552
      3034 8553
TIME...MOT...LOC 0220Z 261DEG 41KT 3107 8472 3034 8533 

HAIL...<.75IN
WIND...60MPH
 
$$

15-HARRIGAN

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 15, 6:19 PM CSTSevere Thunderstorm WarningTAEHolmes, Walton41 min
Feb 15, 6:45 PM CSTSevere Thunderstorm WarningTAEBay, Holmes, Jackson, Walton, Washington60 min
Feb 15, 7:09 PM CSTSpecial Marine WarningTAE96 min
Feb 15, 7:11 PM CSTSpecial Marine WarningTAE94 min
Feb 15, 7:36 PM CSTSevere Thunderstorm WarningTAEJackson54 min
Feb 15, 8:18 PM CSTSevere Thunderstorm WarningTAEGadsden, Jackson42 min
Feb 15, 8:36 PM CSTSpecial Marine WarningTAE54 min
Feb 15, 9:13 PM CSTSevere Thunderstorm WarningTAEFranklin, Gulf, Liberty, Wakulla47 min
Feb 15, 9:23 PM CSTSpecial Marine WarningTAE97 min
Feb 15, 9:45 PM CSTSevere Thunderstorm WarningTAEFranklin, Gadsden, Jefferson, Leon, Liberty, Taylor and 1 more45 min
Feb 15, 9:54 PM CSTSpecial Marine WarningTAE96 min
Feb 15, 10:23 PM CSTSevere Thunderstorm WarningTAEJefferson, Leon, Madison, Taylor, Wakulla32 min
Feb 15, 10:52 PM CSTSpecial Marine WarningTAE53 min
Feb 16, 2:24 AM CSTRip Current StatementTAEBay, Franklin, Gulf, Walton16 hr
Feb 15, 7:14 PM CSTSevere Thunderstorm WarningTAEClay, Quitman, Randolph31 min

Nearby

Severe Thunderstorm Warnings in Florida, 2016Severe Thunderstorm Warnings in Georgia, 2016Every severe thunderstorm warning in 2016

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.