Alert archive / Florida / Flash Flood Warnings in 2012
Flash Flood Warning 30, NWS Tallahassee, FL
NWS Tallahassee, FL issued this flash flood warning at Aug 7, 2012, 7:30 AM CDT for Holmes County, Florida. It was in force for 2 hr. 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
- Aug 7, 2012, 7:30 AM CDT (12:30 UTC)
- Expired
- Aug 7, 2012, 9:30 AM CDT
- In force
- 2 hr
- Issued by
- NWS Tallahassee, FL
- Area
- Storm-based polygon
- Flood severity
- None
County Holmes County, FL
The radar
The Eglin Afb radar (KEVX), 44 km from the middle of the area, began a volume at 12:33 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 |
|---|---|---|---|
| Aug 7, 9:27 AM CDT | FLASH FLOOD | 1 Nw Smith Crossroads, FL | GENEVA COUNTY EMERGENCY MANAGER REPORTS THAT COUNTY ROAD 53 IS CLOSED THAT THE FLORIDA/GEORGIA BORDER DUE TO WATER OVER ROADWAY. |
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, 0.5 hours before the alert went out and 157 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
- 1301 J/kg
- Mixed-layer CIN
- -13 J/kg
- Mixed-layer LCL
- 755 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- 55 m²/s²
- 0-3 km storm-relative helicity
- 66 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
472 WGUS52 KTAE 071230 FFWTAE FLC059-071430- /O.NEW.KTAE.FF.W.0030.120807T1230Z-120807T1430Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE TALLAHASSEE FL 730 AM CDT TUE AUG 7 2012 THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A * FLASH FLOOD WARNING FOR... NORTHERN HOLMES COUNTY IN THE PANHANDLE OF FLORIDA... * UNTIL 930 AM CDT * AT 716 AM CDT...THE NATIONAL WEATHER SERVICE HAS DETECTED FLASH FLOODING FROM THUNDERSTORMS OVER THE WARNED AREA. THESE SLOW MOVING STORMS HAVE BEEN PRODUCING RAINFALL RATES OF 1 TO 2 INCHES PER HOUR WITH TOTAL ACCUMULATIONS OF UP TO 5 TO 8 INCHES POSSIBLE. * LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO SMITH CROSSROADS PRECAUTIONARY/PREPAREDNESS ACTIONS... MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED ROADS MAKE THE SMART CHOICE...TURN AROUND...DON'T DROWN. * REPORT FLOODING OR FLOOD DAMAGE TO THE NATIONAL WEATHER SERVICE IN TALLAHASSEE AT (8 5 0) 9 4 2 8 8 3 3. OR...YOU MAY CONTACT THE NEAREST LAW ENFORCEMENT AGENCY OR YOUR COUNTY EMERGENCY MANAGEMENT. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE. && LAT...LON 3099 8591 3100 8568 3087 8567 3088 8592 $$ 17-GOULD
The office that day
Everything else NWS Tallahassee, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 7, 2:32 AM CDT | Flash Flood Watch | TAE | Bay, Calhoun, Dixie, Franklin, Gadsden, Gulf and 10 more | 24 hr |
| Aug 7, 8:38 AM CDT | Special Marine Warning | TAE | 67 min | |
| Aug 7, 9:30 AM CDT | Flash Flood Warning | TAE | Holmes, Washington | 87 min |
| Aug 7, 10:02 AM CDT | Special Weather Statement | TAE | Washington | 28 min |
| Aug 7, 10:07 AM CDT | River Flood Watch | TAE | Wakulla | 6 days |
| Aug 7, 10:19 AM CDT | River Flood Watch | TAE | Holmes, Washington | 21 days |
| Aug 7, 11:34 AM CDT | Special Weather Statement | TAE | Leon | 41 min |
| Aug 7, 11:58 AM CDT | Areal Flood Advisory | TAE | Leon | 92 min |
| Aug 7, 1:28 PM CDT | Special Weather Statement | TAE | Walton | 62 min |
| Aug 7, 1:53 PM CDT | Special Marine Warning | TAE | 67 min | |
| Aug 7, 2:35 PM CDT | Rip Current Statement | TAE | Bay, Franklin, Gulf, Walton | 3 days |
| Aug 7, 4:25 PM CDT | Areal Flood Advisory | TAE | Lafayette, Taylor | 3 hr |
Nearby
Flash Flood Warnings in Florida, 2012Every flash flood warning in 2012
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.