Alert archive / Florida / Flash Flood Warnings in 2020
Flash Flood Warning 21, NWS Tallahassee, FL
NWS Tallahassee, FL issued this flash flood warning at Sep 16, 2020, 9:28 AM EDT for Liberty County, Florida. It was in force for 14 hr. 3 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
- Sep 16, 2020, 9:28 AM EDT (13:28 UTC)
- Expired
- Sep 16, 2020, 11:30 PM EDT
- In force
- 14 hr
- Issued by
- NWS Tallahassee, FL
- Area
- Storm-based polygon
- Flood severity
- None
County Liberty County, FL
The radar
The Tallahassee radar (KTLH), 52 km from the middle of the area, began a volume at 13:29 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 |
|---|---|---|---|
| Sep 16, 12:04 PM EDT | FLASH FLOOD | 2 S Bristol, FL | A CLASSROOM WAS REPORTED FLOODED AT WR TOLAR ELEMENTARY SCHOOL. |
| Sep 16, 12:06 PM EDT | FLASH FLOOD | Hosford, FL | A FEW BUILDINGS WERE REPORTED FLOODED NEAR SR-20 AND SR-65. |
| Sep 16, 1:19 PM EDT | FLASH FLOOD | 3 Wnw Bloxham, FL | PAT THOMAS PKWY 2 MILES SOUTH OF HOPKINS LANDING IS UNDERWATER. |
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, 1.5 hours before the alert went out and 55 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
- 181 J/kg
- Mixed-layer CIN
- -39 J/kg
- Mixed-layer LCL
- 788 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 286 m²/s²
- 0-3 km storm-relative helicity
- 397 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 2.4
The text
As transmitted.
955
WGUS52 KTAE 161328
FFWTAE
FLC077-162130-
/O.NEW.KTAE.FF.W.0021.200916T1328Z-200916T2130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Tallahassee FL
928 AM EDT Wed Sep 16 2020
The National Weather Service in Tallahassee has issued a
* Flash Flood Warning for...
Liberty County in Big Bend Florida...
* Until 530 PM EDT Wednesday.
* At 928 AM EDT, Doppler radar indicated heavy rain across the
warned area. Flash flooding is ongoing or expected to begin
shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Doppler radar.
IMPACT...Flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other
drainage and low lying areas.
* Some locations that will experience flash flooding include...
Orange, Bristol, Vilas, Nixon Garden, Jensen Place, Central City,
Clio, Wilma, Telogia, Twin Pole, Woods, Kern, Jewel Fire Tower,
Estiffanulga, East Camp, Hosford, Lewis, Red Hill, Owens Bridge
and Lowry.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 3061 8488 3053 8488 3052 8478 3046 8478
3046 8471 3042 8471 3039 8465 3027 8474
3022 8468 3007 8463 3001 8454 3001 8500
2997 8503 3004 8514 3017 8514 3031 8504
3042 8503 3044 8498 3045 8500 3061 8493
FLASH FLOOD...RADAR INDICATED
$$
42-DVD2 follow-up statements
497
WGUS72 KTAE 161545
FFSTAE
Flash Flood Statement
National Weather Service Tallahassee FL
1145 AM EDT Wed Sep 16 2020
FLC077-162130-
/O.CON.KTAE.FF.W.0021.000000T0000Z-200916T2130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Liberty FL-
1145 AM EDT Wed Sep 16 2020
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 530 PM EDT THIS
AFTERNOON FOR LIBERTY COUNTY...
At 1145 AM EDT, emergency management reported heavy rain across the
warned area. Flash flooding is already occurring.
HAZARD...Life threatening flash flooding. Thunderstorms producing
flash flooding.
SOURCE...Emergency management.
IMPACT...Life threatening flash flooding of creeks and streams,
urban areas, highways, streets and underpasses.
Some locations that will experience flash flooding include...
Orange, Bristol, Vilas, Nixon Garden, Jensen Place, Central City,
Clio, Wilma, Telogia, Twin Pole, Woods, Kern, Jewel Fire Tower,
Estiffanulga, East Camp, Hosford, Lewis, Red Hill, Owens Bridge
and Lowry.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 3061 8488 3053 8488 3052 8478 3046 8478
3046 8471 3042 8471 3039 8465 3027 8474
3022 8468 3007 8463 3001 8454 3001 8500
2997 8503 3004 8514 3017 8514 3031 8504
3042 8503 3044 8498 3045 8500 3061 8493
FLASH FLOOD...OBSERVED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE
$$
42-DVD817
WGUS52 KTAE 162114
FFWTAE
FLC077-170330-
/O.EXT.KTAE.FF.W.0021.000000T0000Z-200917T0330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Tallahassee FL
514 PM EDT Wed Sep 16 2020
The National Weather Service in Tallahassee has extended the
* Flash Flood Warning for...
Liberty County in Big Bend Florida...
* Until 1130 PM EDT Wednesday.
* At 514 PM EDT, Flash flooding is ongoing across the area due to
previous rainfall.
HAZARD...Life threatening flash flooding. Thunderstorms
producing flash flooding.
SOURCE...Emergency management.
IMPACT...Life threatening flash flooding of creeks and streams,
urban areas, highways, streets and underpasses.
* Some locations that will experience flash flooding include...
Orange, Bristol, Vilas, Nixon Garden, Jensen Place, Central City,
Clio, Wilma, Telogia, Twin Pole, Woods, Kern, Jewel Fire Tower,
Estiffanulga, East Camp, Hosford, Lewis, Red Hill, Owens Bridge
and Lowry.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 3061 8488 3053 8488 3052 8478 3046 8478
3046 8471 3042 8471 3039 8465 3027 8474
3022 8468 3007 8463 3001 8454 3001 8500
2997 8503 3004 8514 3017 8514 3031 8504
3042 8503 3044 8498 3045 8500 3061 8493
FLASH FLOOD...OBSERVED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE
$$The office that day
Everything else NWS Tallahassee, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 15, 8:00 PM EDT | Special Marine Warning | TAE | 30 min | |
| Sep 15, 8:11 PM EDT | Special Marine Warning | TAE | 34 min | |
| Sep 15, 8:36 PM EDT | Special Marine Warning | TAE | 39 min | |
| Sep 15, 8:38 PM EDT | Special Marine Warning | TAE | 37 min | |
| Sep 15, 9:01 PM EDT | Tornado Warning | TAE | Bay | 29 min |
| Sep 15, 9:04 PM EDT | Special Marine Warning | TAE | 26 min | |
| Sep 15, 9:10 PM EDT | Special Marine Warning | TAE | 35 min | |
| Sep 15, 9:48 PM EDT | Special Marine Warning | TAE | 27 min | |
| Sep 15, 10:05 PM EDT | Tornado Warning | TAE | Gulf | 25 min |
| Sep 15, 10:07 PM EDT | Special Marine Warning | TAE | 23 min | |
| Sep 15, 10:10 PM EDT | Tornado Warning | TAE | Franklin, Gulf | 16 min |
| Sep 15, 10:25 PM EDT | Tornado Warning | TAE | Gulf | 10 min |
| Sep 15, 10:30 PM EDT | Special Marine Warning | TAE | 30 min | |
| Sep 15, 10:33 PM EDT | Special Marine Warning | TAE | 27 min | |
| Sep 15, 10:47 PM EDT | Tornado Warning | TAE | Bay | 27 min |
| Sep 15, 10:57 PM EDT | Special Marine Warning | TAE | 33 min | |
| Sep 15, 11:08 PM EDT | Special Marine Warning | TAE | 37 min | |
| Sep 15, 11:24 PM EDT | Storm Surge Warning | TAE | Walton | 21 hr |
| Sep 15, 11:28 PM EDT | Special Marine Warning | TAE | 32 min | |
| Sep 15, 11:34 PM EDT | Tornado Warning | TAE | Bay | 26 min |
| Sep 15, 11:35 PM EDT | Flash Flood Warning | TAE | Gulf | 24 hr |
| Sep 15, 11:44 PM EDT | Tornado Warning | TAE | Bay | 10 min |
| Sep 16, 1:00 AM EDT | Special Marine Warning | TAE | 30 min | |
| Sep 16, 1:28 AM EDT | Special Marine Warning | TAE | 32 min | |
| Sep 16, 1:47 AM EDT | Special Marine Warning | TAE | 28 min | |
| Sep 16, 2:07 AM EDT | Special Marine Warning | TAE | 38 min | |
| Sep 16, 2:23 AM EDT | Tornado Warning | TAE | Bay | 16 min |
| Sep 16, 2:31 AM EDT | Special Marine Warning | TAE | 29 min | |
| Sep 16, 2:34 AM EDT | Tornado Warning | TAE | Bay | 26 min |
| Sep 16, 2:37 AM EDT | Special Marine Warning | TAE | 38 min | |
| Sep 16, 2:52 AM EDT | Tornado Warning | TAE | Bay | 23 min |
| Sep 16, 2:57 AM EDT | Special Marine Warning | TAE | 33 min | |
| Sep 16, 3:09 AM EDT | Tornado Warning | TAE | Bay | 16 min |
| Sep 16, 3:23 AM EDT | Tornado Warning | TAE | Bay | 10 min |
| Sep 16, 4:09 AM EDT | Special Marine Warning | TAE | 36 min | |
| Sep 16, 4:20 AM EDT | Special Marine Warning | TAE | 25 min | |
| Sep 16, 4:33 AM EDT | Tornado Warning | TAE | Bay, Calhoun | 27 min |
| Sep 16, 4:44 AM EDT | Tornado Warning | TAE | Franklin, Gulf, Liberty | 31 min |
| Sep 16, 4:47 AM EDT | Special Marine Warning | TAE | 43 min | |
| Sep 16, 4:59 AM EDT | Tornado Warning | TAE | Calhoun, Franklin, Gulf, Liberty | 31 min |
| Sep 16, 5:22 AM EDT | Special Marine Warning | TAE | 53 min | |
| Sep 16, 5:35 AM EDT | Special Marine Warning | TAE | 25 min | |
| Sep 16, 6:02 AM EDT | Tornado Warning | TAE | Franklin, Gulf | 28 min |
| Sep 16, 6:28 AM EDT | Tornado Warning | TAE | Bay, Calhoun, Jackson, Washington | 13 min |
| Sep 16, 6:31 AM EDT | Tornado Warning | TAE | Calhoun, Franklin, Gulf, Liberty | 29 min |
| Sep 16, 6:33 AM EDT | Special Marine Warning | TAE | 42 min | |
| Sep 16, 6:57 AM EDT | Tornado Warning | TAE | Calhoun, Liberty | 33 min |
| Sep 16, 7:29 AM EDT | Flash Flood Warning | TAE | Calhoun, Jackson | 16 hr |
| Sep 16, 8:14 AM EDT | Tornado Warning | TAE | Calhoun, Liberty | 46 min |
| Sep 16, 8:58 AM EDT | Tornado Warning | TAE | Calhoun, Jackson | 21 min |
| Sep 16, 10:16 AM EDT | Flash Flood Warning | TAE | Gadsden | 13 hr |
| Sep 16, 10:56 AM EDT | River Flood Warning | TAE | Holmes, Washington | 8 days |
| Sep 16, 11:11 AM EDT | Flash Flood Warning | TAE | Walton, Washington | 8 hr |
| Sep 16, 11:15 AM EDT | River Flood Warning | TAE | Jackson | 8 days |
| Sep 16, 11:17 AM EDT | River Flood Warning | TAE | Calhoun | 10 days |
| Sep 16, 12:25 PM EDT | Severe Thunderstorm Warning | TAE | Franklin, Gadsden, Jefferson, Leon, Wakulla | 95 min |
| Sep 16, 2:05 PM EDT | Severe Thunderstorm Warning | TAE | Jefferson, Leon | 55 min |
| Sep 16, 2:48 PM EDT | Coastal Flood Warning | TAE | Jefferson, Taylor | 23 hr |
| Sep 16, 2:48 PM EDT | Coastal Flood Advisory | TAE | Jefferson, Taylor | 29 hr |
| Sep 16, 3:28 PM EDT | Flash Flood Warning | TAE | Gadsden, Leon | 6 hr |
| Sep 16, 4:15 PM EDT | Tornado Warning | TAE | Jefferson | 30 min |
| Sep 16, 4:25 PM EDT | River Flood Warning | TAE | Wakulla | 66 hr |
| Sep 16, 6:03 PM EDT | Flash Flood Warning | TAE | Jefferson | 4 hr |
| Sep 16, 6:24 PM EDT | Flash Flood Warning | TAE | Holmes, Walton | 6 hr |
| Sep 16, 6:32 PM EDT | Areal Flood Warning | TAE | Bay, Washington | 16 hr |
| Sep 16, 7:29 PM EDT | Special Marine Warning | TAE | 61 min |
Nearby
Flash Flood Warnings in Florida, 2020Every flash flood warning in 2020
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.