Alert archive / Florida / Flash Flood Warnings in 2021
Flash Flood Warning 54, NWS Tallahassee, FL
NWS Tallahassee, FL issued this flash flood warning at Oct 28, 2021, 1:40 AM CDT for Bay County, Walton County, Washington County, Florida. It was in force for 3 hr. 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
- Oct 28, 2021, 1:40 AM CDT (06:40 UTC)
- Expired
- Oct 28, 2021, 4:45 AM CDT
- In force
- 3 hr
- Issued by
- NWS Tallahassee, FL
- Area
- Storm-based polygon
- Flood severity
- None
Counties Bay County, FL, Walton County, FL, Washington County, FL
The radar
The Eglin Afb radar (KEVX), 25 km from the middle of the area, began a volume at 06:44 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 |
|---|---|---|---|
| Oct 28, 3:00 AM CDT | FLASH FLOOD | Hollywood Beach, FL | MEDIA SHOWED PICTURES OF FLOODING IN A NEIGHBORHOOD IN THE RIVIERA DRIVE AND POMPANO AVENUE AREA. WATER WAS SURROUNDING HOMES AND COVERING THE ROAD. RAINFALL OF AROUND 5 INCHES IN A 3 HOUR PERIOD OCCURRED. |
| Oct 28, 4:07 AM CDT | HEAVY RAIN 3.74 | 5 Ne West Bay, FL | STORM TOTAL OF 3.74 INCHES SO FAR AT THE PANAMA CITY AIRPORT. |
| Oct 28, 4:18 AM CDT | HEAVY RAIN 3.59 | 2 Wnw Blue Mountain Bea, FL | MESONET STATION EW7533 SANTA ROSA BEACH STORM TOTAL OF 3.59 INCHES. |
| Oct 28, 4:30 AM CDT | FLASH FLOOD | Crystal Lake, FL | WATER REPORTED OVER THE ROAD AT HIGHWAY 77 AND CRYSTAL LAKE DRIVE. |
| Oct 28, 4:32 AM CDT | HEAVY RAIN 3.48 | Bahama Beach, FL | STORM TOTAL OF 3.48 INCHES AT THE DOLLAR OUTLET TEMPEST STATION. |
| Oct 28, 4:34 AM CDT | HEAVY RAIN 5.04 | 1 Nne Sunnyside, FL | STORM TOTAL OF 5.04 INCHES AT THE FSWN PANAMA CITY BEACH WEST END WEATHERSTEM. |
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 00:00Z, 6.7 hours before the alert went out and 171 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2227 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 20 m²/s²
- 0-3 km storm-relative helicity
- 53 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
176
WGUS52 KTAE 280640
FFWTAE
FLC005-131-133-280945-
/O.NEW.KTAE.FF.W.0054.211028T0640Z-211028T0945Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Tallahassee FL
140 AM CDT Thu Oct 28 2021
The National Weather Service in Tallahassee has issued a
* Flash Flood Warning for...
Northwestern Bay County in the panhandle of Florida...
Southwestern Walton County in the panhandle of Florida...
Southwestern Washington County in the panhandle of Florida...
* Until 445 AM CDT.
* At 140 AM CDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Flash flooding is ongoing or
expected to begin shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar.
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 Beach, Santa Rosa Beach, Ebro, Laird, Seminole Hills,
Pine Log, West Bay, Laguna Beach, Hollywood Beach, Sunnyside,
Inlet Beach, Gulf Resort Beach, Bid-a-Wee, Bahama Beach, Bunker,
Edgewater Gulf Beach, West Panama City, Port Washington, Gulf
Lagoon Beach and Seagrove Beach.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
&&
LAT...LON 3040 8639 3040 8622 3042 8627 3042 8626
3043 8625 3031 8599 3040 8612 3042 8598
3042 8599 3043 8616 3045 8616 3046 8564
3043 8558 3036 8567 3014 8576 3033 8618
3037 8639
FLASH FLOOD...RADAR INDICATED
$$
42-DVD1 follow-up statement
087
WGUS72 KTAE 280900
FFSTAE
Flash Flood Statement
National Weather Service Tallahassee FL
400 AM CDT Thu Oct 28 2021
FLC131-280910-
/O.CAN.KTAE.FF.W.0054.000000T0000Z-211028T0945Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Walton FL-
400 AM CDT Thu Oct 28 2021
...FLASH FLOOD WARNING IS CANCELLED FOR SOUTHWESTERN WALTON COUNTY...
Flooding is no longer expected to pose a threat. Please continue to
heed any remaining road closures.
LAT...LON 3027 8600 3028 8599 3039 8599 3040 8600
3042 8598 3043 8598 3044 8595 3044 8591
3044 8590 3046 8590 3046 8564 3043 8558
3036 8567 3014 8576 3028 8608 3030 8608
$$
FLC005-133-280945-
/O.CON.KTAE.FF.W.0054.000000T0000Z-211028T0945Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Bay FL-Washington FL-
400 AM CDT Thu Oct 28 2021
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 445 AM CDT EARLY THIS
MORNING FOR NORTHWESTERN BAY AND SOUTHWESTERN WASHINGTON COUNTIES...
At 400 AM CDT, Doppler radar indicated thunderstorms producing heavy
rain across the warned area. Flash flooding is ongoing or expected
to begin shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar.
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 Beach, Ebro, West Bay, Laird, Pine Log, Seminole
Hills, Gulf Resort Beach, Bid-a-Wee, Bahama Beach, Edgewater Gulf
Beach, Sunnyside, Laguna Beach, Hollywood Beach, West Panama City,
Gulf Lagoon Beach and Biltmore Beach.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
&&
LAT...LON 3027 8600 3028 8599 3039 8599 3040 8600
3042 8598 3043 8598 3044 8595 3044 8591
3044 8590 3046 8590 3046 8564 3043 8558
3036 8567 3014 8576 3028 8608 3030 8608
FLASH FLOOD...RADAR INDICATED
$$
42-DVDThe office that day
Everything else NWS Tallahassee, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 27, 10:23 PM CDT | Special Marine Warning | TAE | 2 hr | |
| Oct 27, 11:21 PM CDT | Special Marine Warning | TAE | 3 hr | |
| Oct 28, 12:06 AM CDT | Special Marine Warning | TAE | 114 min | |
| Oct 28, 1:06 AM CDT | Tornado Warning | TAE | Bay | 24 min |
| Oct 28, 1:52 AM CDT | Special Marine Warning | TAE | 113 min | |
| Oct 28, 2:08 AM CDT | Special Marine Warning | TAE | 2 hr | |
| Oct 28, 3:23 AM CDT | Flash Flood Warning | TAE | Bay, Calhoun, Jackson, Washington | 3 hr |
| Oct 28, 3:37 AM CDT | Special Marine Warning | TAE | 3 hr | |
| Oct 28, 4:06 AM CDT | Special Marine Warning | TAE | 114 min | |
| Oct 28, 5:53 AM CDT | Special Marine Warning | TAE | 3 hr | |
| Oct 28, 6:42 AM CDT | Special Weather Statement | TAE | Leon | 33 min |
| Oct 28, 6:53 AM CDT | Tornado Warning | TAE | Dixie | 26 min |
| Oct 28, 8:52 AM CDT | Special Marine Warning | TAE | 53 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; radar from the NEXRAD Level II archive.