Alert archive / Florida / Flash Flood Warnings in 2010

Flash Flood Warning 5, NWS Mobile, AL

January 21, 2010Escambia County, Santa Rosa County, Florida; Baldwin County, Escambia County, Alabama

NWS Mobile, AL issued this flash flood warning at Jan 21, 2010, 12:29 AM CST for Escambia County, Santa Rosa County, Florida; Baldwin County, Escambia County, Alabama. It was in force for 6 hr. 8 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
Jan 21, 2010, 12:29 AM CST (06:29 UTC)
Expired
Jan 21, 2010, 6:30 AM CST
In force
6 hr
Issued by
NWS Mobile, AL
Area
Storm-based polygon
Flood severity
None

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

The radar

The Mobile radar (KMOB), 116 km from the middle of the area, began a volume at 06:31 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
Jan 21, 3:00 AM CSTFLASH FLOOD1 Ssw Wahl, FLCARNLEY ROAD CLOSED DUE TO WATER COVERING THE ROAD.
Jan 21, 3:00 AM CSTFLASH FLOOD1 Sw Bratt, FLRIGBY ROAD CLOSED DUE TO WATER COVERING THE ROAD.
Jan 21, 3:00 AM CSTFLASH FLOOD1 Sw Oak Grove, FLLAMBERT BRIDGE ROAD CLOSED DUE TO WATER COVERING THE ROAD
Jan 21, 3:00 AM CSTFLASH FLOOD4 Sw Walnut Hill, FLOC PHILLIPS ROAD CLOSED DUE TO WATER COVERING THE ROAD
Jan 21, 4:00 AM CSTFLASH FLOOD5 Wsw Berrydale, FLWALLING ROAD CLOSED DUE TO WATER OVER JONES BRIDGE
Jan 21, 4:00 AM CSTFLASH FLOOD6 Ssw Munson, FLRED ROCK ROAD CLOSED DUE TO WATER COVERING 3 BRIDGES
Jan 21, 4:00 AM CSTFLASH FLOODChumuckla, FLTHOMAS CREEK OUT OF BANKS
Jan 21, 4:00 AM CSTFLASH FLOODMunson, FLJUNIPER CREEK OUT OF BANKS

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

The nearest sounding before it

Eglin AFB/Valpar, FL (KVPS), launched 00:00Z, 6.5 hours before the alert went out and 81 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, Eglin AFB/Valpar, FL at 00:00Z on 2010-01-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Eglin AFB/Valpar, FL at 00:00Z on 2010-01-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 190 square meters per square second.1939587897Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
626 m above ground
0-6 km bulk shear
58 kt
0-1 km storm-relative helicity
190 m²/s²
0-3 km storm-relative helicity
244 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

530 
WGUS54 KMOB 210629
FFWMOB
ALC003-053-FLC033-113-211230-
/O.NEW.KMOB.FF.W.0005.100121T0629Z-100121T1230Z/
/00000.0.RS.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOBILE AL
1229 AM CST THU JAN 21 2010

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHERN ESCAMBIA COUNTY IN NORTHWEST FLORIDA...
  SANTA ROSA COUNTY IN NORTHWEST FLORIDA...
  ESCAMBIA COUNTY IN SOUTH CENTRAL ALABAMA...
  CENTRAL BALDWIN COUNTY IN SOUTHWEST ALABAMA...

* UNTIL 630 AM CST

* AT 1225 AM CST...NATIONAL WEATHER SERVICE RADAR INDICATED VERY
  HEAVY RAIN FROM THUNDERSTORMS ALONG A LINE EXTENDING FROM          
  APPLETON TO MCDAVID TO LOXLEY...MOVING EAST AT 25 MPH.

* THUNDERSTORMS PRODUCING VERY HEAVY RAIN WILL BE NEAR...
  ROSINTON AND POLLARD BY 1235 AM CST...
  KEEGO BY 1240 AM CST...
  KIRKLAND...EAST BREWTON...BREWTON AND JAY BY 1245 AM CST...
  ROCK HILL AND DIXONVILLE BY 1255 AM CST...
  BOYKIN BY 105 AM CST...

ADDITIONAL RAINFALL AMOUNTS OF THREE INCHES ARE POSSIBLE LOCALLY IN 
THE WARNED AREA.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY
ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS AND OTHER LOW
LYING AREAS ARE SUBJECT TO FLOODING.

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 3059 8790 3114 8792 3127 8696 3127 8676
      3121 8677 3119 8673 3120 8671 3100 8674
      3100 8678 3066 8679

$$
1 follow-up statement
631 
WGUS74 KMOB 211148
FFSMOB

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
548 AM CST THU JAN 21 2010

ALC003-053-FLC033-113-211230-
/O.CON.KMOB.FF.W.0005.000000T0000Z-100121T1230Z/
/00000.0.RS.000000T0000Z.000000T0000Z.000000T0000Z.OO/
ESCAMBIA AL-BALDWIN AL-ESCAMBIA FL-SANTA ROSA FL-
548 AM CST THU JAN 21 2010

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 630 AM CST FOR SANTA
ROSA...NORTHERN ESCAMBIA...CENTRAL BALDWIN AND ESCAMBIA COUNTIES...

THIS FLASH FLOOD WARNING WILL BE ALLOWED TO EXPIRE 630 AM CST. THE 
LATEST THINKING IS THAT WITH LINE OF THUNDERSTORMS MOVING OFF TO THE 
EAST OVER THE WARNED AREA THE THREAT OF FLASH FLOODING HAS 
DIMINISHED. INUNDATION MAY STILL EXIST AND RIVER FLOODING IS LIKELY 
IN THE AFTERMATH OF THIS EVENT LOCALLY. PLEASE REFER TO RIVER 
PRODUCTS (PRODUCT ID = BHMRVSMOB) FOR THE LATEST ON ANY SPECIFIC 
RIVER OR SEE THE AHPS PAGE ON OUR LOCAL WEB SITE AT 
HTTP://WWW.SRH.NOAA.GOV/MOB.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TO REPORT FLASH FLOODING TO YOUR NATIONAL WEATHER SERVICE...CALL TOLL
FREE AT 1 8 7 7 6 3 3 6 7 7 2.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 AM CST THURSDAY MORNING
FOR SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA AND SOUTHEAST
MISSISSIPPI.

&&

LAT...LON 3059 8790 3114 8792 3127 8696 3127 8676
      3121 8677 3119 8673 3120 8671 3100 8674
      3100 8678 3066 8679

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 20, 9:53 PM CSTSevere Thunderstorm WarningMOBEscambia52 min
Jan 20, 10:13 PM CSTRiver Flood WarningMOBEscambia3 days
Jan 20, 10:13 PM CSTRiver Flood WarningMOBEscambia68 hr
Jan 20, 10:13 PM CSTRiver Flood WarningMOBEscambia26 days
Jan 20, 10:13 PM CSTRiver Flood WarningMOBOkaloosa5 days
Jan 20, 10:32 PM CSTFlash Flood WarningMOBEscambia, Santa Rosa118 min
Jan 20, 10:33 PM CSTSevere Thunderstorm WarningMOBSanta Rosa42 min
Jan 21, 5:55 AM CSTAreal Flood WarningMOBOkaloosa6 hr
Jan 21, 6:31 AM CSTRiver Flood WarningMOBOkaloosa, Santa Rosa62 hr
Jan 21, 9:45 AM CSTRiver Flood WarningMOBOkaloosa, Santa Rosa55 hr
Jan 21, 9:45 AM CSTRiver Flood WarningMOBOkaloosa, Santa Rosa26 hr
Jan 21, 9:45 AM CSTRiver Flood WarningMOBEscambia10 hr
Jan 21, 5:18 PM CSTDense Fog AdvisoryMOB7 hr
Jan 20, 7:05 PM CSTSpecial Marine WarningMOB55 min
Jan 20, 7:42 PM CSTAreal Flood AdvisoryMOBMobile3 hr
Jan 20, 8:02 PM CSTSpecial Marine WarningMOB58 min
Jan 20, 8:21 PM CSTFlash Flood WarningMOBMobile114 min
Jan 20, 9:29 PM CSTSpecial Marine WarningMOB46 min
Jan 20, 9:30 PM CSTFlash Flood WarningMOBBaldwin2 hr
Jan 20, 11:30 PM CSTFlash Flood WarningMOBBaldwin, Mobile2 hr
Jan 21, 2:49 AM CSTTornado WarningMOBBaldwin, Butler, Conecuh, Covington, Escambia, Monroe41 min
Jan 21, 5:33 AM CSTSpecial Marine WarningMOB117 min
Jan 21, 9:45 AM CSTRiver Flood WarningMOBEscambia35 hr
Jan 21, 9:45 AM CSTRiver Flood WarningMOBCovington, Escambia49 hr
Jan 21, 11:29 AM CSTRiver Flood WarningMOBMobile21 hr
Jan 21, 11:29 AM CSTRiver Flood WarningMOBBaldwin24 hr
Jan 21, 5:20 PM CSTMarine Dense Fog AdvisoryMOB5 hr

Nearby

Flash Flood Warnings in Florida, 2010Flash Flood Warnings in Alabama, 2010Every flash flood warning in 2010

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.