Alert archive / Florida / Flash Flood Warnings in 2011
Flash Flood Warning 17, NWS Mobile, AL
NWS Mobile, AL issued this flash flood warning at Mar 9, 2011, 11:03 AM CST for Okaloosa County, Florida. It was in force for 5 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
- Mar 9, 2011, 11:03 AM CST (17:03 UTC)
- Expired
- Mar 9, 2011, 4:14 PM CST
- In force
- 5 hr
- Issued by
- NWS Mobile, AL
- Area
- Storm-based polygon
- Flood severity
- None
County Okaloosa County, FL
The radar
The Eglin Afb radar (KEVX), 69 km from the middle of the area, began a volume at 17:06 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 |
|---|---|---|---|
| Mar 9, 2:59 PM CST | FLASH FLOOD | Crestview, FL | OLD ANTIOCH RD. AT HWY 85 IMPASSABLE DUE TO STANDING WATER. |
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, 5.1 hours before the alert went out and 225 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
- 611 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 348 m²/s²
- 0-3 km storm-relative helicity
- 471 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
514 WGUS54 KMOB 091703 FFWMOB FLC091-092300- /O.NEW.KMOB.FF.W.0017.110309T1703Z-110309T2300Z/ /00000.0.RS.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE MOBILE AL 1103 AM CST WED MAR 9 2011 THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A * FLASH FLOOD WARNING FOR... OKALOOSA COUNTY IN NORTHWEST FLORIDA... THIS INCLUDES THE CITY OF CRESTVIEW... * UNTIL 500 PM CST * AT 1100 AM CST...NATIONAL WEATHER SERVICE RADAR INDICATED VERY HEAVY RAIN FROM A LINE OF THUNDERSTORMS MOVING ACROSS OKALOOSA COUNTY. THESE STORMS HAVE BEEN PRODUCING AS MUCH AS 3 INCHES OF RAIN IN A SHORT AMOUNT OF TIME...AND ADDITIONAL RAINFALL AMOUNTS OF 2 TO 3 INCHES WILL OCCUR AS STORMS CONTINUE TO MOVE ACROSS THE AREA. THIS WILL QUICKLY RESULT IN FLASH FLOODING. 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...DONT DROWN. TO REPORT FLASH FLOODING TO YOUR NATIONAL WEATHER SERVICE...CALL TOLL FREE AT 1 8 7 7 6 3 3 6 7 7 2. LAT...LON 3052 8679 3100 8678 3099 8638 3054 8638 $$
2 follow-up statements
735 WGUS74 KMOB 092106 FFSMOB FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE MOBILE AL 306 PM CST WED MAR 9 2011 FLC091-092300- /O.CON.KMOB.FF.W.0017.000000T0000Z-110309T2300Z/ /00000.0.RS.000000T0000Z.000000T0000Z.000000T0000Z.OO/ OKALOOSA FL- 306 PM CST WED MAR 9 2011 ...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 500 PM CST FOR OKALOOSA COUNTY... AT 301 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATES THAT UP TO 3 TO 5 INCHES OF RAIN FELL OVER THE AREA. THE INTERSECTION OF OLD ANTIOCH ROAD AND HIGHWAY 84 IN CRESTVIEW IS CURRENTLY IMPASSABLE DUE TO HIGH WATER. THE FLASH FLOOD WARNING CONTINUES IN EFFECT UNTIL THE HEAVY RAINS FINISHING DRAINING OFF. PRECAUTIONARY/PREPAREDNESS ACTIONS... MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN. && LAT...LON 3052 8679 3100 8678 3099 8638 3054 8638 $$
397 WGUS74 KMOB 092214 RRA FFSMOB FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE MOBILE AL 414 PM CST WED MAR 9 2011 FLC091-092225- /O.CAN.KMOB.FF.W.0017.000000T0000Z-110309T2300Z/ /00000.0.RS.000000T0000Z.000000T0000Z.000000T0000Z.OO/ OKALOOSA FL- 414 PM CST WED MAR 9 2011 ...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR OKALOOSA COUNTY... AT 411 PM CST...REPORTS FROM EMERGENCY MANAGEMENT AND LOCAL LAW ENFORCEMENT INDICATE THAT ANY AREAS THAT FLOODED HAVE SINCE SUBSIDED...THUS THE FLASH FLOOD WARNING HAS BEEN CANCELLED. LAT...LON 3052 8679 3100 8678 3099 8638 3054 8638 $$
The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 9, 9:02 AM CST | Severe Thunderstorm Warning | MOB | Escambia, Santa Rosa | 58 min |
| Mar 9, 9:10 AM CST | Severe Thunderstorm Warning | MOB | Okaloosa, Santa Rosa | 65 min |
| Mar 9, 9:10 AM CST | Tornado Warning | MOB | Escambia | 50 min |
| Mar 9, 9:16 AM CST | Tornado Warning | MOB | Escambia | 44 min |
| Mar 9, 9:25 AM CST | Flash Flood Warning | MOB | Escambia, Santa Rosa | 6 hr |
| Mar 9, 9:26 AM CST | Tornado Warning | MOB | Escambia, Santa Rosa | 49 min |
| Mar 9, 9:40 AM CST | Tornado Warning | MOB | Escambia, Santa Rosa | 50 min |
| Mar 9, 10:09 AM CST | Severe Thunderstorm Warning | MOB | Escambia, Okaloosa, Santa Rosa | 66 min |
| Mar 9, 10:17 AM CST | Flash Flood Warning | MOB | Santa Rosa | 6 hr |
| Mar 9, 10:30 AM CST | Tornado Warning | MOB | Okaloosa, Santa Rosa | 32 min |
| Mar 9, 11:10 AM CST | Severe Thunderstorm Warning | MOB | Okaloosa | 65 min |
| Mar 9, 11:14 AM CST | Tornado Warning | MOB | Escambia, Santa Rosa | 61 min |
| Mar 9, 11:41 AM CST | Tornado Warning | MOB | Okaloosa | 26 min |
| Mar 9, 11:48 AM CST | Flash Flood Warning | MOB | Okaloosa, Santa Rosa | 4 hr |
| Mar 9, 12:16 PM CST | Tornado Warning | MOB | Okaloosa, Santa Rosa | 26 min |
Nearby
Flash Flood Warnings in Florida, 2011Every flash flood warning in 2011
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.