Alert archive / Florida / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 49, NWS Tallahassee, FL

January 22, 2017Bay County, Walton County, Washington County, Florida

NWS Tallahassee, FL issued this severe thunderstorm warning at Jan 22, 2017, 7:35 AM CST for Bay County, Walton County, Washington County, Florida. It was in force for 40 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: Jan 22, 2017, 7:35 AM CST (13:35 UTC)
Expired: Jan 22, 2017, 8:15 AM CST
In force: 40 min
Issued by: NWS Tallahassee, FL
Area: Storm-based polygon
Hail: 0.88 in
Wind: 60.0 mph

Counties Bay County, FL, Walton County, FL, Washington County, FL

The radar

The Eglin Afb radar (KEVX), 18 km from the middle of the area, began a volume at 13:36 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 12:00Z, 1.6 hours before the alert went out and 161 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: 1298 J/kg
Mixed-layer CIN: -2 J/kg
Mixed-layer LCL: 635 m above ground
0-6 km bulk shear: 61 kt
0-1 km storm-relative helicity: 296 m²/s²
0-3 km storm-relative helicity: 441 m²/s²
Significant tornado parameter: 2.9
Supercell composite: 15.6

Open this sounding in Storm Lab

The text

As transmitted.

668 
WUUS52 KTAE 221335
SVRTAE
FLC005-131-133-221415-
/O.NEW.KTAE.SV.W.0049.170122T1335Z-170122T1415Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Tallahassee FL
735 AM CST SUN JAN 22 2017

The National Weather Service in Tallahassee has issued a

* Severe Thunderstorm Warning for...
  Northern Bay County in the Panhandle of Florida...
  Southern Walton County in the Panhandle of Florida...
  Southern Washington County in the Panhandle of Florida...

* Until 815 AM CST

* At 735 AM CST, a severe thunderstorm was located 10 miles northwest
  of Panama City Beach, moving northeast at 55 mph.

  HAZARD...60 mph wind gusts and nickel size hail. 

  SOURCE...Radar indicated. 

  IMPACT...Expect damage to roofs, siding, and trees. 

* Locations impacted include...
  Ebro, Betts, Porter Lake, Seminole Hills, Pine Log, Seaside,
  Greenhead, Smyrna, Laird, Seagrove Beach, West Bay, Riverside,
  Spring Hollow, Grayton Beach, Sunnyside, Port Washington, Inlet
  Beach, Bunker, Laguna Beach and Bruce.

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 900 AM CST for the Panhandle
of Florida.

LAT...LON 3038 8616 3038 8612 3039 8611 3040 8612
      3042 8612 3042 8614 3043 8612 3043 8615
      3044 8615 3062 8563 3057 8543 3056 8538
      3053 8539 3020 8602 3022 8605 3023 8610
      3031 8618
TIME...MOT...LOC 1335Z 237DEG 49KT 3029 8599 

HAIL...0.88IN
WIND...60MPH
 
$$

15-HARRIGAN

The office that day

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

Issued	Product	Office	Counties	Lasted
Jan 22, 12:24 AM CST	Severe Thunderstorm Warning	TAE	Jackson, Washington	24 min
Jan 22, 2:39 AM CST	Wind Advisory	TAE	Bay, Calhoun, Dixie, Franklin, Gadsden, Gulf and 10 more	14 hr
Jan 22, 2:47 AM CST	Gale Warning	TAE		33 hr
Jan 22, 4:34 AM CST	Severe Thunderstorm Warning	TAE	Gadsden	56 min
Jan 22, 5:33 AM CST	Severe Thunderstorm Warning	TAE	Calhoun, Gadsden, Leon, Liberty	42 min
Jan 22, 6:09 AM CST	Severe Thunderstorm Warning	TAE	Gadsden, Leon, Liberty	36 min
Jan 22, 6:30 AM CST	Severe Thunderstorm Warning	TAE	Jefferson	30 min
Jan 22, 6:33 AM CST	Areal Flood Advisory	TAE	Gadsden, Liberty	117 min
Jan 22, 6:37 AM CST	Special Marine Warning	TAE		98 min
Jan 22, 6:52 AM CST	Severe Thunderstorm Warning	TAE	Jefferson, Madison	38 min
Jan 22, 6:54 AM CST	Severe Thunderstorm Warning	TAE	Bay, Calhoun, Liberty	51 min
Jan 22, 7:05 AM CST	Severe Thunderstorm Warning	TAE	Bay, Calhoun	40 min
Jan 22, 7:20 AM CST	Special Marine Warning	TAE		55 min
Jan 22, 7:37 AM CST	Severe Thunderstorm Warning	TAE	Gadsden, Jefferson, Leon	38 min
Jan 22, 7:40 AM CST	Severe Thunderstorm Warning	TAE	Bay, Calhoun, Gadsden, Jackson, Liberty, Washington	50 min
Jan 22, 7:44 AM CST	Tornado Warning	TAE	Gadsden, Leon	31 min
Jan 22, 7:59 AM CST	Severe Thunderstorm Warning	TAE	Walton, Washington	16 min
Jan 22, 8:07 AM CST	Severe Thunderstorm Warning	TAE	Holmes, Jackson, Walton, Washington	38 min
Jan 22, 8:08 AM CST	Severe Thunderstorm Warning	TAE	Bay, Calhoun, Jackson, Walton, Washington	36 min
Jan 22, 8:09 AM CST	Tornado Warning	TAE	Leon	36 min
Jan 22, 8:11 AM CST	Special Marine Warning	TAE		64 min
Jan 22, 8:11 AM CST	Severe Thunderstorm Warning	TAE	Gadsden, Jackson	49 min
Jan 22, 8:25 AM CST	River Flood Warning	TAE	Holmes, Washington	7 days
Jan 22, 8:25 AM CST	River Flood Warning	TAE	Walton, Washington	9 days
Jan 22, 8:33 AM CST	Severe Thunderstorm Warning	TAE	Madison	57 min
Jan 22, 8:51 AM CST	Severe Thunderstorm Warning	TAE	Calhoun, Gadsden, Liberty	39 min
Jan 22, 8:53 AM CST	Tornado Warning	TAE	Calhoun, Gadsden, Liberty	37 min
Jan 22, 8:53 AM CST	Tornado Warning	TAE	Gadsden	37 min
Jan 22, 9:37 AM CST	Severe Thunderstorm Warning	TAE	Walton	23 min
Jan 22, 9:38 AM CST	Tornado Warning	TAE	Gadsden, Leon	37 min
Jan 22, 9:57 AM CST	Severe Thunderstorm Warning	TAE	Holmes, Walton	48 min
Jan 22, 11:16 AM CST	Special Marine Warning	TAE		119 min
Jan 22, 11:23 AM CST	Severe Thunderstorm Warning	TAE	Holmes, Walton	52 min
Jan 22, 11:43 AM CST	Tornado Warning	TAE	Walton	32 min
Jan 22, 12:12 PM CST	Severe Thunderstorm Warning	TAE	Bay, Holmes, Walton, Washington	48 min
Jan 22, 12:14 PM CST	Special Marine Warning	TAE		61 min
Jan 22, 12:34 PM CST	Tornado Warning	TAE	Bay, Gulf	41 min
Jan 22, 12:39 PM CST	Severe Thunderstorm Warning	TAE	Holmes, Jackson, Washington	34 min
Jan 22, 12:52 PM CST	Tornado Warning	TAE	Bay	23 min
Jan 22, 12:54 PM CST	River Flood Warning	TAE	Calhoun, Franklin, Gulf, Liberty	7 days
Jan 22, 12:55 PM CST	Severe Thunderstorm Warning	TAE	Holmes, Jackson, Washington	21 min
Jan 22, 1:04 PM CST	Special Marine Warning	TAE		86 min
Jan 22, 1:08 PM CST	Tornado Warning	TAE	Bay, Calhoun, Gulf, Liberty	11 min
Jan 22, 1:35 PM CST	Tornado Warning	TAE	Calhoun, Gadsden, Liberty	8 min
Jan 22, 1:35 PM CST	Tornado Warning	TAE	Franklin, Gulf	25 min
Jan 22, 1:39 PM CST	Tornado Warning	TAE	Jackson	36 min
Jan 22, 1:50 PM CST	Tornado Warning	TAE	Liberty, Wakulla	25 min
Jan 22, 1:53 PM CST	Tornado Warning Tornado observed	TAE	Franklin, Liberty, Wakulla	20 min
Jan 22, 2:10 PM CST	Severe Thunderstorm Warning	TAE	Leon, Wakulla	20 min
Jan 22, 2:26 PM CST	Severe Thunderstorm Warning	TAE	Jefferson, Leon, Wakulla	34 min
Jan 22, 2:43 PM CST	Coastal Flood Warning	TAE	Dixie, Franklin, Gulf, Jefferson, Taylor, Wakulla	6 hr
Jan 22, 2:53 PM CST	Severe Thunderstorm Warning	TAE	Jefferson, Madison	37 min
Jan 22, 3:57 PM CST	Severe Thunderstorm Warning	TAE	Dixie, Lafayette, Taylor	18 min

Nearby

Severe Thunderstorm Warnings in Florida, 2017 Every severe thunderstorm warning in 2017

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.