Alert archive / Florida / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 1, NWS Jacksonville, FL
NWS Jacksonville, FL issued this severe thunderstorm warning at Jan 27, 2021, 12:57 PM EST for Hamilton County, Suwannee County, Florida. It was in force for 48 min. 2 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
- Jan 27, 2021, 12:57 PM EST (17:57 UTC)
- Expired
- Jan 27, 2021, 1:45 PM EST
- In force
- 48 min
- Issued by
- NWS Jacksonville, FL
- Area
- Storm-based polygon
- Tornado
- Possible
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Hamilton County, FL, Suwannee County, FL
The radar
The Moody AFB radar (KVAX), 56 km from the middle of the area, began a volume at 18:00 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
| Time | Report | Where | Remark |
|---|---|---|---|
| Jan 27, 1:53 PM EST | TSTM WND DMG | 3 Ne Live Oak, FL | DAMAGE TO MOTEL EXTERIOR SOFFIT NEAR US HWY 129 AND I-10. MULTIPLE SOFTWOOD TREES UPROOTED AND A HARDWOOD TREE TRUNK SNAPPED ALONG 70TH ST. RADAR ESTIMATED TIME. |
| Jan 27, 1:55 PM EST | TSTM WND DMG | 1 Nne Live Oak, FL | POWERLINES AND TREES REPORTED DOWN, ROOF ANTENNA ACROSS A ROADWAY. LOCATION ON THE NORTH SIDE OF LIVE OAK CITY LIMITS. TIME AND LOCATION APPROXIMATED. |
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, 6.0 hours before the alert went out and 109 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.
- Mixed-layer CAPE
- 128 J/kg
- Mixed-layer CIN
- -29 J/kg
- Mixed-layer LCL
- 548 m above ground
- 0-6 km bulk shear
- 56 kt
- 0-1 km storm-relative helicity
- 183 m²/s²
- 0-3 km storm-relative helicity
- 308 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 1.6
The text
As transmitted.
862
WUUS52 KJAX 271757
SVRJAX
FLC047-121-271845-
/O.NEW.KJAX.SV.W.0001.210127T1757Z-210127T1845Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Jacksonville FL
1257 PM EST Wed Jan 27 2021
The National Weather Service in Jacksonville has issued a
* Severe Thunderstorm Warning for...
Northern Suwannee County in northern Florida...
Central Hamilton County in northern Florida...
* Until 145 PM EST.
* At 1256 PM EST, a severe thunderstorm was located 8 miles south of
Madison, moving east at 45 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Live Oak, Jasper, Suwannee Springs, Suwannee River State Park,
Wellborn, Blue Springs, Crossroads, Newburn and Houston.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Intense thunderstorm lines can produce brief tornadoes and widespread
significant wind damage. Although a tornado is not immediately
likely, it is best to move to an interior room on the lowest floor of
a building. This storm may cause serious injury and significant
property damage.
&&
LAT...LON 3054 8325 3059 8280 3021 8280 3025 8324
3029 8323 3031 8321 3035 8321 3035 8319
3038 8319 3039 8317 3041 8318 3042 8322
3046 8322 3047 8323 3047 8324
TIME...MOT...LOC 1756Z 269DEG 64KT 3034 8345
TORNADO...POSSIBLE
HAIL...<.75IN
WIND...60MPH
$$
KB2 follow-up statements
049
WWUS52 KJAX 271832
SVSJAX
Severe Weather Statement
National Weather Service Jacksonville FL
132 PM EST Wed Jan 27 2021
FLC047-121-271845-
/O.CON.KJAX.SV.W.0001.000000T0000Z-210127T1845Z/
Suwannee FL-Hamilton FL-
132 PM EST Wed Jan 27 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 145 PM EST
FOR NORTHERN SUWANNEE AND CENTRAL HAMILTON COUNTIES...
At 132 PM EST, a severe thunderstorm was located near Suwannee
Valley, or near White Springs, moving east at 45 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Live Oak, Jasper, Suwannee Springs, Suwannee River State Park and
Crossroads.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
Jacksonville.
Intense thunderstorm lines can produce brief tornadoes and widespread
significant wind damage. Although a tornado is not immediately
likely, it is best to move to an interior room on the lowest floor of
a building. This storm may cause serious injury and significant
property damage.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3059 8280 3026 8281 3029 8323 3031 8321
3035 8321 3035 8319 3038 8319 3039 8317
3041 8318 3042 8322 3052 8317
TIME...MOT...LOC 1832Z 269DEG 64KT 3035 8270
TORNADO...POSSIBLE
HAIL...<.75IN
WIND...60MPH
$$
KB467
WWUS52 KJAX 271843
SVSJAX
Severe Weather Statement
National Weather Service Jacksonville FL
143 PM EST Wed Jan 27 2021
FLC047-121-271853-
/O.EXP.KJAX.SV.W.0001.000000T0000Z-210127T1845Z/
Suwannee FL-Hamilton FL-
143 PM EST Wed Jan 27 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN SUWANNEE AND CENTRAL
HAMILTON COUNTIES WILL EXPIRE AT 145 PM EST...
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire. However gusty
winds are still possible with this thunderstorm.
To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Jacksonville.
LAT...LON 3059 8280 3026 8281 3029 8323 3031 8321
3035 8321 3035 8319 3038 8319 3039 8317
3041 8318 3042 8322 3052 8317
TIME...MOT...LOC 1843Z 269DEG 64KT 3035 8252
$$
KBThe office that day
Everything else NWS Jacksonville, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 27, 1:58 AM EST | Dense Fog Advisory | JAX | Alachua, Bradford, Flagler, Marion | 7 hr |
| Jan 27, 2:02 AM EST | Gale Warning | JAX | 36 hr | |
| Jan 27, 2:02 AM EST | Small Craft Advisory | JAX | 19 hr | |
| Jan 27, 12:39 PM EST | Special Weather Statement | JAX | Hamilton | 36 min |
| Jan 27, 1:42 PM EST | Severe Thunderstorm Warning | JAX | Columbia, Hamilton, Suwannee | 63 min |
| Jan 27, 1:47 PM EST | Tornado Warning | JAX | Hamilton, Suwannee | 28 min |
| Jan 27, 2:04 PM EST | Tornado Warning | JAX | Columbia, Hamilton, Suwannee | 41 min |
| Jan 27, 2:34 PM EST | Severe Thunderstorm Warning | JAX | Baker, Columbia | 41 min |
| Jan 27, 3:06 PM EST | Special Weather Statement | JAX | Gilchrist | 54 min |
| Jan 27, 3:12 PM EST | Severe Thunderstorm Warning | JAX | Baker, Clay, Duval, Nassau | 63 min |
| Jan 27, 3:35 PM EST | Special Weather Statement | JAX | Clay, Union | 40 min |
| Jan 27, 3:54 PM EST | Special Weather Statement | JAX | Alachua | 51 min |
| Jan 27, 3:59 PM EST | Tornado Warning | JAX | Clay, Duval, Saint Johns | 19 min |
| Jan 27, 4:04 PM EST | Special Marine Warning | JAX | 86 min | |
| Jan 27, 4:08 PM EST | Special Weather Statement | JAX | Duval | 37 min |
| Jan 27, 4:32 PM EST | Special Weather Statement | JAX | Marion | 58 min |
| Jan 27, 5:23 PM EST | Special Weather Statement | JAX | Marion | 37 min |
| Jan 27, 6:02 PM EST | Special Weather Statement | JAX | Marion | 43 min |
Nearby
Severe Thunderstorm Warnings in Florida, 2021Every severe thunderstorm warning in 2021
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.