Alert archive / Florida / Flash Flood Warnings in 2011

Flash Flood Warning 14, NWS Mobile, AL

March 9, 2011Escambia County, Santa Rosa County, Florida; Baldwin County, Alabama

NWS Mobile, AL issued this flash flood warning at Mar 9, 2011, 9:25 AM CST for Escambia County, Santa Rosa County, Florida; Baldwin County, Alabama. It was in force for 6 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, 9:25 AM CST (15:25 UTC)
Expired
Mar 9, 2011, 3:15 PM CST
In force
6 hr
Issued by
NWS Mobile, AL
Area
Storm-based polygon
Flood severity
None

Counties Baldwin County, AL, Escambia County, FL, Santa Rosa County, FL

The radar

The Mobile radar (KMOB), 73 km from the middle of the area, began a volume at 15:26 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

TimeReportWhereRemark
Mar 9, 11:00 AM CSTFLASH FLOODFairhope, ALWATER OVER THE ROAD ON COUNTY ROAD 32 WESTBOUND NEAR HIGHWAY 181...ON COUNTY ROAD 13 NORTH OF HIGHWAY 98...AND ON COUNTY ROAD 44 AND BOOTHE RD

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 3.4 hours before the alert went out and 210 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.

Skew-T log-pSkew-T log-p diagram, Slidell Radar S, LA at 12:00Z on 2011-03-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1220 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Slidell Radar S, LA at 12:00Z on 2011-03-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 499 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
1220 J/kg
Mixed-layer CIN
-9 J/kg
Mixed-layer LCL
456 m above ground
0-6 km bulk shear
65 kt
0-1 km storm-relative helicity
499 m²/s²
0-3 km storm-relative helicity
571 m²/s²
Significant tornado parameter
4.3
Supercell composite
19.4

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

341 
WGUS54 KMOB 091525
FFWMOB
ALC003-FLC033-113-092115-
/O.NEW.KMOB.FF.W.0014.110309T1525Z-110309T2115Z/
/00000.0.RS.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOBILE AL
925 AM CST WED MAR 9 2011

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  ESCAMBIA COUNTY IN NORTHWEST FLORIDA...
  THIS INCLUDES THE CITIES OF...WEST PENSACOLA...WARRINGTON...
  PENSACOLA...MYRTLE GROVE...MOLINO...GOULDING...GONZALEZ...FERRY
  PASS...ENSLEY...CENTURY...BRENT...BELLVIEW...
  WESTERN SANTA ROSA COUNTY IN NORTHWEST FLORIDA...
  THIS INCLUDES THE CITY OF PACE...
  BALDWIN COUNTY IN SOUTHWEST ALABAMA...
  THIS INCLUDES THE CITIES OF...ORANGE BEACH...GULF SHORES...
  ROBERTSDALE...POINT CLEAR...LOXLEY...FOLEY...FAIRHOPE...DAPHNE...
  BAY MINETTE...

* UNTIL 315 PM CST

* AT 919 AM CST...NATIONAL WEATHER SERVICE RADAR INDICATED VERY HEAVY
  RAIN FROM A LINE OF THUNDERSTORMS MOVING ACROSS CENTRAL AND
  SOUTHERN BALDWIN COUNTY ALABAMA AND INTO NORTHERN ESCAMBIA COUNTY
  FLORIDA.  THESE STORMS WILL CONTINUE ADVANCING EAST AROUND 35
  KNOTS INTO THE REMAINDER OF ESCAMBIA COUNTY FLORIDA AND
  NORTHWESTERN SANTA ROSA COUNTY FLORIDA.  THESE STORMS WILL PRODUCE
  2 TO 3 INCHES OF RAIN IN A SHORT AMOUNT OF TIME WHICH WILL
  QUICKLY LEAD TO 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 3027 8795 3025 8789 3029 8776 3042 8792
      3048 8795 3095 8784 3102 8763 3100 8709
      3057 8714 3058 8717 3044 8716 3038 8725
      3034 8726 3034 8720 3037 8722 3039 8717
      3032 8717 3029 8754 3022 8779 3022 8803

$$
2 follow-up statements
071 
WGUS74 KMOB 091652
FFSMOB

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
1052 AM CST WED MAR 9 2011

ALC003-FLC033-113-092115-
/O.CON.KMOB.FF.W.0014.000000T0000Z-110309T2115Z/
/00000.0.RS.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BALDWIN AL-ESCAMBIA FL-SANTA ROSA FL-
1052 AM CST WED MAR 9 2011

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 315 PM CST FOR
WESTERN SANTA ROSA...ESCAMBIA AND BALDWIN COUNTIES...

AT 1045 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATES 
THAT 2 TO 4 INCHES OF RAIN HAS FALLEN OVER THE AREA WITH THE HIGHEST 
AMOUNTS OF SOUTHERN BALDWIN COUNTY ALABAMA AND SOUTHERN ESCAMBIA AND 
SANTA ROSA COUNTIES.  STRONG THUNDERSTORMS CONTINUE TO MOVE EASTWARD 
MAINLY OVER THE SOUTHERN PORTION OF THESE COUNTIES AND ADDITIONAL 
RAINFALL AMOUNTS OF 2 TO 3 INCHES ARE POSSIBLE WHICH WILL EXACERBATE 
THE FLASH FLOODING IN THIS AREA.  ADDITIONAL RAINFALL AMOUNTS OF 
AROUND 1 INCH CAN BE EXPECTED OVER CENTRAL BALDWIN AND INLAND 
ESCAMBIA AND NORTHWEST SANTA ROSA COUNTIES.

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.

A TORNADO WATCH REMAINS IN EFFECT UNTIL NOON CST WEDNESDAY FOR
SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA.

&&

LAT...LON 3027 8795 3025 8789 3029 8776 3042 8792
      3048 8795 3095 8784 3102 8763 3100 8709
      3057 8714 3058 8717 3044 8716 3038 8725
      3034 8726 3034 8720 3037 8722 3039 8717
      3032 8717 3029 8754 3022 8779 3022 8803

$$
919 
WGUS74 KMOB 092036
FFSMOB

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
236 PM CST WED MAR 9 2011

FLC113-092041-
/O.CAN.KMOB.FF.W.0014.000000T0000Z-110309T2115Z/
/00000.0.RS.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SANTA ROSA FL-
236 PM CST WED MAR 9 2011

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR WESTERN SANTA ROSA
COUNTY...

AT 231 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 3027 8794 3025 8789 3027 8778 3029 8775
      3044 8792 3048 8794 3060 8791 3066 8727
      3057 8721 3056 8716 3044 8716 3038 8725
      3034 8726 3033 8716 3033 8717 3029 8754
      3022 8779 3023 8801

$$

ALC003-FLC033-092115-
/O.CON.KMOB.FF.W.0014.000000T0000Z-110309T2115Z/
/00000.0.RS.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BALDWIN AL-ESCAMBIA FL-
236 PM CST WED MAR 9 2011

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 315 PM CST FOR
SOUTHEASTERN ESCAMBIA AND SOUTHERN BALDWIN COUNTIES...

AT 231 PM CST...THERE ARE STILL REPORTS OF IMPASSIBLE ROADS IN 
ROBERTSDALE AND FAIRHOPE IN BALDWIN COUNTY BUT ALSO THAT WATER IS 
RECEDING IN THESE AREAS.  REPORTS FROM EMERGENCY MANAGEMENT AND 
LOCAL LAW ENFORCEMENT INDICATE THAT ANY OTHER AREAS THAT FLOODED 
HAVE SINCE SUBSIDED.  THE FLASH FLOOD WARNING HAS BEEN REDUCED TO 
INCLUDE JUST SOUTHERN BALDWIN ALABAMA AND ESCAMBIA COUNTY FLORIDA 
WHERE RADAR ESTIMATED RAINFALL AMOUNTS INDICATE THAT AS MUCH AS 5 
INCHES OF RAIN FELL AS THE STORMS MOVED THROUGH...AND IT IS PLANNED 
TO LET THE WARNING EXPIRE AT 315 PM.

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 3027 8794 3025 8789 3027 8778 3029 8775
      3044 8792 3048 8794 3060 8791 3066 8727
      3057 8721 3056 8716 3044 8716 3038 8725
      3034 8726 3033 8716 3033 8717 3029 8754
      3022 8779 3023 8801

$$

The office that day

Everything else NWS Mobile, AL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 9, 9:02 AM CSTSevere Thunderstorm WarningMOBEscambia, Santa Rosa58 min
Mar 9, 9:10 AM CSTSevere Thunderstorm WarningMOBOkaloosa, Santa Rosa65 min
Mar 9, 9:10 AM CSTTornado WarningMOBEscambia50 min
Mar 9, 9:16 AM CSTTornado WarningMOBEscambia44 min
Mar 9, 9:26 AM CSTTornado WarningMOBEscambia, Santa Rosa49 min
Mar 9, 9:40 AM CSTTornado WarningMOBEscambia, Santa Rosa50 min
Mar 9, 10:09 AM CSTSevere Thunderstorm WarningMOBEscambia, Okaloosa, Santa Rosa66 min
Mar 9, 10:17 AM CSTFlash Flood WarningMOBSanta Rosa6 hr
Mar 9, 10:30 AM CSTTornado WarningMOBOkaloosa, Santa Rosa32 min
Mar 9, 11:03 AM CSTFlash Flood WarningMOBOkaloosa5 hr
Mar 9, 11:10 AM CSTSevere Thunderstorm WarningMOBOkaloosa65 min
Mar 9, 11:14 AM CSTTornado WarningMOBEscambia, Santa Rosa61 min
Mar 9, 11:41 AM CSTTornado WarningMOBOkaloosa26 min
Mar 9, 11:48 AM CSTFlash Flood WarningMOBOkaloosa, Santa Rosa4 hr
Mar 9, 12:16 PM CSTTornado WarningMOBOkaloosa, Santa Rosa26 min
Mar 8, 7:11 PM CSTSevere Thunderstorm WarningMOBMobile, Washington34 min
Mar 8, 8:23 PM CSTSevere Thunderstorm WarningMOBWashington37 min
Mar 8, 9:04 PM CSTSevere Thunderstorm WarningMOBClarke, Washington41 min
Mar 8, 9:44 PM CSTSevere Thunderstorm WarningMOBClarke, Washington, Wilcox46 min
Mar 9, 1:32 AM CSTFlash Flood WarningMOBChoctaw118 min
Mar 9, 4:20 AM CSTFlash Flood WarningMOBChoctaw6 hr
Mar 9, 4:22 AM CSTSevere Thunderstorm WarningMOBChoctaw38 min
Mar 9, 4:32 AM CSTTornado WarningMOBChoctaw33 min
Mar 9, 5:07 AM CSTFlash Flood WarningMOBChoctaw6 hr
Mar 9, 5:40 AM CSTTornado WarningMOBChoctaw, Clarke33 min
Mar 9, 5:51 AM CSTFlash Flood WarningMOBClarke, Washington, Wilcox6 hr
Mar 9, 6:37 AM CSTTornado WarningMOBWashington17 min
Mar 9, 7:08 AM CSTSevere Thunderstorm WarningMOBBaldwin, Mobile, Washington52 min
Mar 9, 7:26 AM CSTFlash Flood WarningMOBBaldwin, Clarke, Mobile, Washington6 hr
Mar 9, 7:33 AM CSTFlash Flood WarningMOBMonroe6 hr
Mar 9, 7:52 AM CSTSevere Thunderstorm WarningMOBBaldwin, Mobile83 min
Mar 9, 7:54 AM CSTSpecial Marine WarningMOB81 min
Mar 9, 8:01 AM CSTTornado WarningMOBBaldwin, Mobile44 min
Mar 9, 8:14 AM CSTSevere Thunderstorm WarningMOBConecuh, Covington, Escambia61 min
Mar 9, 8:27 AM CSTTornado WarningMOBBaldwin, Mobile63 min
Mar 9, 8:35 AM CSTTornado WarningMOBConecuh, Covington, Escambia40 min
Mar 9, 8:41 AM CSTFlash Flood WarningMOBBaldwin, Mobile4 hr
Mar 9, 8:48 AM CSTFlash Flood WarningMOBConecuh, Escambia5 hr
Mar 9, 8:50 AM CSTSevere Thunderstorm WarningMOBButler, Conecuh, Covington, Crenshaw40 min
Mar 9, 9:16 AM CSTTornado WarningMOBCovington59 min
Mar 9, 9:19 AM CSTSpecial Marine WarningMOB116 min
Mar 9, 9:23 AM CSTSpecial Marine WarningMOB97 min
Mar 9, 9:26 AM CSTTornado WarningMOBCovington, Crenshaw26 min
Mar 9, 9:36 AM CSTFlash Flood WarningMOBConecuh, Covington, Escambia114 min
Mar 9, 9:44 AM CSTAreal Flood AdvisoryMOBButler, Conecuh, Covington, Crenshaw4 hr
Mar 9, 9:54 AM CSTTornado WarningMOBCovington25 min
Mar 9, 10:22 AM CSTAreal Flood WarningMOBChoctaw5 hr
Mar 9, 10:55 AM CSTSpecial Marine WarningMOB80 min
Mar 9, 11:00 AM CSTAreal Flood WarningMOBChoctaw5 hr
Mar 9, 11:30 AM CSTRiver Flood WarningMOBClarke, Monroe, Wilcox10 days
Mar 9, 11:54 AM CSTAreal Flood AdvisoryMOBConecuh, Covington, Escambia111 min
Mar 9, 11:58 AM CSTSpecial Marine WarningMOB2 hr
Mar 9, 12:00 PM CSTAreal Flood WarningMOBClarke, Washington, Wilcox4 hr
Mar 9, 2:02 PM CSTSpecial Marine WarningMOB58 min

Nearby

Flash Flood Warnings in Florida, 2011Flash Flood Warnings in Alabama, 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.