Alert archive / Florida / Flash Flood Warnings in 2005

Flash Flood Warning 27, NWS Mobile, AL

April 6, 2005Escambia County, Okaloosa County, Santa Rosa County, Florida

NWS Mobile, AL issued this flash flood warning at Apr 6, 2005, 11:46 PM CDT for Escambia County, Okaloosa County, Santa Rosa County, Florida. It was in force for 4 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Apr 6, 2005, 11:46 PM CDT (04:46 UTC)
Expired
Apr 7, 2005, 4:00 AM CDT
In force
4 hr
Issued by
NWS Mobile, AL
Area
Counties, with a storm outline in the text

Counties Escambia County, FL, Okaloosa County, FL, Santa Rosa County, FL

The radar

The Mobile radar (KMOB), 110 km from the middle of the area, began a volume at 04:46 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.

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 4.8 hours before the alert went out and 252 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 00:00Z on 2005-04-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1611 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 00:00Z on 2005-04-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 70 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
1611 J/kg
Mixed-layer CIN
-5 J/kg
Mixed-layer LCL
667 m above ground
0-6 km bulk shear
56 kt
0-1 km storm-relative helicity
70 m²/s²
0-3 km storm-relative helicity
157 m²/s²
Significant tornado parameter
0.8
Supercell composite
3.0

Open this sounding in Storm Lab

The text

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

000 
WGUS54 KMOB 070447
FFWMOB
FLC033-091-113-070900-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOBILE AL
1146 PM CDT WED APR 6 2005

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* FLASH FLOOD WARNING FOR...

  OKALOOSA COUNTY IN NORTHWEST FLORIDA
  ESCAMBIA COUNTY IN NORTHWEST FLORIDA
  SANTA ROSA COUNTY IN NORTHWEST FLORIDA

* UNTIL 400 AM CDT

* AT 1146 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUES TO 
  INDICATE CLUSTERS OF THUNDERSTORMS MOVING ACROSS THE WESTERN 
  FLORIDA PANHANDLE. DUE TO THE PERSISTENT PASSAGE OF THUNDERSTORMS
  OVER THE SAME AREAS OVER THE PAST SEVERAL HOURS...EXCESSIVE 
  RUNOFF HAS CAUSED SEVERAL ROADS TO BECOME FLOODED AND IMPASSABLE. 
  SOME AREA RESIDENCES IN GULF BREEZE HAVE REPORTED WATER COMING INTO 
  HOMES. MAJOR FLOODING WAS OCCURRING IN MARY ESTHER AS WELL.     

DOPPLER RADAR RAINFALL ESTIMATES SHOW A LARGE SWATH OF STORM TOTAL 
RAINS EXCEEDING 4 INCHES SOUTH OF I-10...WITH BEACH COMMUNITY ESTIMATES OF 
UP TO 6 INCHES OVER THE WARNED AREA.

ADDITIONAL RAINS DURING THE PREDAWN HOURS WILL EQUATE TO RUNOFF...WHICH
WILL ONLY AGGRAVATE THE ONGOING FLOODING OF SMALL CREEKS AND STREAMS...
HIGHWAYS...STREETS AND UNDERPASSES...AS WELL AS OTHER POOR DRAINAGE
AND LOW LYING AREAS.

RESIDENTS LIVING IN FLOOD PRONE AREAS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
WATERS OF UNKNOWN DEPTH BY FOOT OR BY AUTOMOBILE. REMEMBER...IT ONLY
TAKES A FEW INCHES OF SWIFTLY FLOWING WATER TO CARRY VEHICLES AWAY.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLOODING IS OBSERVED ACT QUICKLY. MOVE
UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS
SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

LAT...LON 3032 8740 3041 8681 3040 8646 3082 8638
      3083 8757 3064 8735 3055 8742

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 6, 9:33 PM CDTFlash Flood WarningMOBEscambia, Santa Rosa2 hr
Apr 6, 10:47 PM CDTFlash Flood WarningMOBOkaloosa3 hr

Nearby

Flash Flood Warnings in Florida, 2005Every flash flood warning in 2005

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.