Alert archive / Florida / Flash Flood Warnings in 2005

Flash Flood Warning 3, NWS Mobile, AL

March 31, 2005Okaloosa County, Santa Rosa County, Florida

NWS Mobile, AL issued this flash flood warning at Mar 31, 2005, 4:40 PM CST for Okaloosa County, Santa Rosa County, Florida. It was in force for 110 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Mar 31, 2005, 4:40 PM CST (22:40 UTC)
Expired: Mar 31, 2005, 6:30 PM CST
In force: 110 min
Issued by: NWS Mobile, AL
Area: Counties, with a storm outline in the text

Counties Okaloosa County, FL, Santa Rosa County, FL

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 10.7 hours before the alert went out and 251 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 548 J/kg
Mixed-layer CIN: -288 J/kg
Mixed-layer LCL: 680 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 66 m²/s²
0-3 km storm-relative helicity: 157 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.

000 
WGUS54 KMOB 312242
FFWMOB
FLC091-113-010030-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOBILE AL
440 PM CST THU MAR 31 2005

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* FLASH FLOOD WARNING FOR...

  OKALOOSA COUNTY IN NORTHWEST FLORIDA
  SANTA ROSA COUNTY IN NORTHWEST FLORIDA

* UNTIL 630 PM CST

* AT 440 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  VERY HEAVY RAIN FROM NUMEROUS SHOWERS AND THUNDERSTORM TRAINING    
  FROM WEST TO EAST ACROSS MAINLY THE CENTRAL PORTIONS OF SANTA ROSA 
  AND OKALOOSA COUNTIES. THESE STORMS ARE EXPECTED TO CONTINUE       
  PRODUCING PERIODS OF HEAVY RAIN OVER THE NEXT COUPLE OF HOURS. 

* THE THUNDERSTORMS PRODUCING HEAVY RAIN WILL EFFECT AREAS...
  ALONG AND NORTH OF THE I-10 CORRIDOR FROM WEST OF MILTON TO EAST   
  OF CRESTVIEW THROUGH 630 PM CST.

RADAR AND AREA OBSERVATIONS HAVE INDICATED THAT AT LEAST 3 TO 5 
INCHES OF RAINFALL HAVE FALLEN ACROSS THE WARNED AREA OVER THE PAST 
3 HOURS. NUMEROUS REPORTS OF FLOODED ROADWAYS HAVE BEEN RECEIVED 
ACROSS SANTA ROSA COUNTY...AND ANOTHER 2 TO 3 INCHES OF RAINFALL IS 
LIKELY OVER THE NEXT COUPLE OF HOURS.  

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS...STREETS AND UNDERPASSES...AS WELL AS
OTHER POUR 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 3091 8727 3038 8710 3042 8642 3095 8642

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 31, 5:40 PM CST	Flash Flood Warning	MOB	Escambia	110 min

Nearby

Flash Flood Warnings in Florida, 2005 Every 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.