Alert archive / Florida / Flash Flood Warnings in 2021
Flash Flood Warning 34, NWS Tallahassee, FL
NWS Tallahassee, FL issued this flash flood warning at Sep 11, 2021, 4:34 PM CDT for Bay County, Florida. It was in force for 84 min. 1 report 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 11, 2021, 4:34 PM CDT (21:34 UTC)
- Expired
- Sep 11, 2021, 5:58 PM CDT
- In force
- 84 min
- Issued by
- NWS Tallahassee, FL
- Area
- Storm-based polygon
- Flood severity
- None
County Bay County, FL
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Sep 11, 5:03 PM CDT | FLASH FLOOD | Panama City, FL | FLOODING ALONG HWY 98 BETWEEN THE HATHAWAY BRIDGE AND EAST AVENUE. REPORT OF A CAR FLOATING IN THE STREET, AND WATER IN A MINI STORAGE BUSINESS AT 432 PM CDT. HAM REPORT OF 2.25 INCHES IN ONE HOUR. FSU PANAMA CITY REPORTED AN INSTANTANEOUS RATE OF 3.87 INCHES/ |
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, 9.6 hours before the alert went out and 136 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
- 264 J/kg
- Mixed-layer CIN
- -69 J/kg
- Mixed-layer LCL
- 908 m above ground
- 0-6 km bulk shear
- 10 kt
- 0-1 km storm-relative helicity
- 63 m²/s²
- 0-3 km storm-relative helicity
- 161 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
210
WGUS52 KTAE 112134
FFWTAE
FLC005-112330-
/O.NEW.KTAE.FF.W.0034.210911T2134Z-210911T2330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Tallahassee FL
434 PM CDT Sat Sep 11 2021
The National Weather Service in Tallahassee has issued a
* Flash Flood Warning for...
Central Bay County in the panhandle of Florida...
* Until 630 PM CDT.
* At 434 PM CDT, trained weather spotters reported thunderstorms
producing heavy rain in Panama City. Between 1 and 2 inches of
rain have fallen in the last 1 Hour. Additional rainfall amounts
up to 2 inches are possible in the warned area. Flash flooding is
already occurring.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Trained spotters reported.
IMPACT...Flash flooding of small creeks and streams, urban
areas, highways, streets and underpasses as well as
other poor drainage and low-lying areas.
* Some locations that will experience flash flooding include...
Panama City, Tyndall Air Force Base and Dirego Park.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be aware of your surroundings and do not drive on flooded roads.
&&
LAT...LON 3019 8573 3019 8564 3014 8563 3014 8568
3018 8574
FLASH FLOOD...OBSERVED
$$1 follow-up statement
358
WGUS72 KTAE 112258
FFSTAE
Flash Flood Statement
National Weather Service Tallahassee FL
558 PM CDT Sat Sep 11 2021
FLC005-112308-
/O.CAN.KTAE.FF.W.0034.000000T0000Z-210911T2330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Bay FL-
558 PM CDT Sat Sep 11 2021
...FLASH FLOOD WARNING IS CANCELLED FOR CENTRAL BAY COUNTY...
Flood waters have receded. The heavy rain has ended. Flooding is no
longer expected to pose a threat. Please continue to heed any road
closures.
LAT...LON 3019 8573 3019 8564 3014 8563 3014 8568
3018 8574
$$
AHThe office that day
Everything else NWS Tallahassee, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 11, 8:14 AM CDT | Special Marine Warning | TAE | 91 min | |
| Sep 11, 3:58 PM CDT | Special Weather Statement | TAE | Bay | 32 min |
| Sep 11, 4:28 PM CDT | Special Weather Statement | TAE | Bay | 32 min |
| Sep 11, 5:30 PM CDT | Special Weather Statement | TAE | Leon | 30 min |
| Sep 11, 5:37 PM CDT | Special Weather Statement | TAE | Taylor | 23 min |
| Sep 11, 5:41 PM CDT | Special Weather Statement | TAE | Leon | 34 min |
| Sep 11, 6:01 PM CDT | Special Marine Warning | TAE | 29 min | |
| Sep 11, 6:25 PM CDT | Special Marine Warning | TAE | 35 min | |
| Sep 11, 6:30 PM CDT | Special Weather Statement | TAE | Walton | 30 min |
Nearby
Flash Flood Warnings in Florida, 2021Every flash flood 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.