Alert archive / Florida / Flash Flood Warnings in 2018
Flash Flood Warning 2, NWS Tallahassee, FL
NWS Tallahassee, FL issued this flash flood warning at May 21, 2018, 4:54 AM EDT for Franklin County, Wakulla County, Florida. It was in force for 3 hr. 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
- May 21, 2018, 4:54 AM EDT (08:54 UTC)
- Expired
- May 21, 2018, 8:00 AM EDT
- In force
- 3 hr
- Issued by
- NWS Tallahassee, FL
- Area
- Storm-based polygon
- Flood severity
- None
Counties Franklin County, FL, Wakulla County, FL
The radar
The Tallahassee radar (KTLH), 44 km from the middle of the area, began a volume at 08:58 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 |
|---|---|---|---|
| May 21, 6:00 AM EDT | HEAVY RAIN 8.79 | 2 Ene Mcintyre, FL | 8.79 INCHES OF RAIN MEASURED IN 6 HOURS AT SITE CTMF1 ENDING AT 6 AM EDT. |
| May 21, 8:00 AM EDT | FLASH FLOOD | 2 Ne Curtis Mill, FL | THE SOPCHOPPY POST OFFICE REPORTS THAT SEVERAL SIDE ROADS OFF OF HIGHWAY 319 ARE FLOODED SOUTH OF TOWN. |
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, 8.9 hours before the alert went out and 46 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
- 6 J/kg
- Mixed-layer CIN
- -113 J/kg
- Mixed-layer LCL
- 677 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- 65 m²/s²
- 0-3 km storm-relative helicity
- 5 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
886
WGUS52 KTAE 210854
FFWTAE
FLC037-129-211200-
/O.NEW.KTAE.FF.W.0002.180521T0854Z-180521T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Tallahassee FL
454 AM EDT MON MAY 21 2018
The National Weather Service in Tallahassee has issued a
* Flash Flood Warning for...
Western Wakulla County in Big Bend of Florida...
Northeastern Franklin County in Big Bend of Florida...
* Until 800 AM EDT.
* At 453 AM EDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. 4 to 6 inches of rain have
fallen. Flash flooding is expected to begin shortly.
Additional rainfall amounts of 2 to 3 inches are possible in the
warned area.
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 3001 8457 3001 8455 3002 8456 3002 8458
3024 8469 3028 8450 2994 8435 2991 8452
$$
ADLThe office that day
Everything else NWS Tallahassee, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 21, 4:13 AM EDT | Areal Flood Advisory | TAE | Franklin, Liberty, Wakulla | 3 hr |
| May 21, 4:36 AM EDT | Special Marine Warning | TAE | 24 min | |
| May 21, 7:42 AM EDT | Flash Flood Warning | TAE | Franklin, Wakulla | 2 hr |
| May 21, 11:13 AM EDT | Areal Flood Warning | TAE | Wakulla | 24 hr |
| May 21, 11:30 AM EDT | Rip Current Statement | TAE | Franklin | 15 hr |
| May 21, 5:56 PM EDT | Areal Flood Advisory | TAE | Taylor | 2 hr |
Nearby
Flash Flood Warnings in Florida, 2018Every flash flood warning in 2018
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.