Alert archive / Florida / Flash Flood Warnings in 2005

Flash Flood Warning 30, NWS Mobile, AL

April 30, 2005Escambia County, Okaloosa County, Santa Rosa County, Florida

NWS Mobile, AL issued this flash flood warning at Apr 30, 2005, 11:03 AM CDT for Escambia County, Okaloosa County, Santa Rosa County, Florida. It was in force for 3 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 30, 2005, 11:03 AM CDT (16:03 UTC)
Expired
Apr 30, 2005, 2:00 PM CDT
In force
3 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), 103 km from the middle of the area, began a volume at 16:06 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.

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 4.1 hours before the alert went out and 276 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, Tallahassee Rgnl, FL at 12:00Z on 2005-04-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 586 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, Tallahassee Rgnl, FL at 12:00Z on 2005-04-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 119 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
586 J/kg
Mixed-layer CIN
-90 J/kg
Mixed-layer LCL
555 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
119 m²/s²
0-3 km storm-relative helicity
170 m²/s²
Significant tornado parameter
0.2
Supercell composite
0.9

Open this sounding in Storm Lab

The text

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

000 
WGUS54 KMOB 301605
FFWMOB
FLC033-091-113-301900-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOBILE AL
1103 AM CDT SAT APR 30 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 200 PM CDT

* AT 1100 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
HEAVY RAINS CONTINUING FROM NUMEROUS THUNDERSTORMS MOVING FROM WEST 
TO EAST ACROSS THE WESTERN FLORIDA PANHANDLE.  WHILE THE STORMS ARE 
MOVING EAST AT 35 MPH...WIDESPREAD RAIN AND THUNDERSTORMS ARE NOTED 
ON RADAR WELL TO THE WEST ACROSS THE NORTHERN GULF...COASTAL ALABAMA 
EXTENDING BACK INTO SOUTHEAST MISSISSIPPI AND LOUISIANA.  THIS 
ADDITIONAL THUNDERSTORM ACTIVITY WILL MOVE ACROSS NORTHWEST FLORIDA 
THROUGH 2 PM.

ADDITIONAL RAINFALL AMOUNTS AROUND 3 INCHES IN A SHORT PERIOD OF 
TIME ARE POSSIBLE THROUGH 2 PM OVER PORTIONS OF SOUTH 
OKALOOSA...SOUTH SANTA ROSA AND SOUTH ESCAMBIA COUNTY FLORIDA.  

EXCESSIVE RUNOFF FROM ADDITIONAL HEAVY RAINFALL WILL CAUSE 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.

LAT...LON 3032 8742 3039 8635 3099 8638 3098 8759
      3068 8743 3054 8740 3046 8737

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 30, 7:43 AM CDTSevere Thunderstorm WarningMOBEscambia, Santa Rosa47 min
Apr 30, 9:51 AM CDTSevere Thunderstorm WarningMOBEscambia, Okaloosa, Santa Rosa54 min
Apr 30, 10:45 AM CDTSevere Thunderstorm WarningMOBEscambia, Santa Rosa39 min

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.