Alert archive / Florida / Flash Flood Warnings in 2007

Flash Flood Warning 3, NWS Mobile, AL

October 19, 2007Escambia County, Okaloosa County, Santa Rosa County, Florida

NWS Mobile, AL issued this flash flood warning at Oct 19, 2007, 6:57 AM CDT for Escambia County, Okaloosa County, Santa Rosa County, Florida. It was in force for 3 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
Oct 19, 2007, 6:57 AM CDT (11:57 UTC)
Expired
Oct 19, 2007, 10:00 AM CDT
In force
3 hr
Issued by
NWS Mobile, AL
Area
Storm-based polygon
Flood severity
None

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

The radar

The Eglin Afb radar (KEVX), 111 km from the middle of the area, began a volume at 11:59 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
Oct 19, 7:32 AM CDTFLASH FLOODNavarre, FLSIGNIFICANT WIDESPREAD FLOODING IN AND AROUND NAVARRE AND SURROUNDING AREAS OF COASTAL SANTA ROSA COUNTY.

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 00:00Z, 12.0 hours before the alert went out and 253 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 2007-10-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1091 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 2007-10-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 78 square meters per square second.193958Sfc1 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
1091 J/kg
Mixed-layer CIN
-53 J/kg
Mixed-layer LCL
986 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
78 m²/s²
0-3 km storm-relative helicity
106 m²/s²
Significant tornado parameter
0.6
Supercell composite
4.6

Open this sounding in Storm Lab

The text

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

000 
WGUS54 KMOB 191208
FFWMOB
FLC033-091-113-191500-
/O.NEW.KMOB.FF.W.0003.071019T1157Z-071019T1500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOBILE AL
710 AM CDT FRI OCT 19 2007

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHERN ESCAMBIA COUNTY IN NORTHWEST FLORIDA...
  THIS INCLUDES THE CITY OF PENSACOLA...
  OKALOOSA COUNTY IN NORTHWEST FLORIDA...
  THIS INCLUDES THE CITIES OF...FORT WALTON BEACH...DESTIN...
  CRESTVIEW...
  SANTA ROSA COUNTY IN NORTHWEST FLORIDA...
  THIS INCLUDES THE CITY OF NAVARRE...

* UNTIL 1000 AM CDT

* AT 710 AM CDT...SIGNIFICANT FLASH FLOODING CONTINUES OVER MOST OF 
THE WARNED AREA...PRIMARILY OVER SOUTHERN ESCAMBIA AND SOUTHERN 
SANTA ROSA COUNTIES.  

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  VALPARAISO...POSTIL...PACE...NICEVILLE...MOLINO...MILTON NEAR
  WHITING FIELD...MILTON...MILLIGAN...HOLT...HAROLD...GONZALEZ...
  GALLIVER...FERRY PASS...ENSLEY...DORCAS...DEERLAND...CRESTVIEW
  AIRPORT...COTTAGE HILL...CHUMUCKLA...CANTONMENT...BEULAH...BAKER...
  BAGDAD AND ALLENTOWN

DOPPLER WEATHER RADAR PRECIPITATION ESTIMATES SUGGEST THAT 2 TO 3 
INCHES OF RAIN HAS FALLEN OVER THE COASTAL AREAS OF ESCAMBIA AND 
SANTA ROSA COUNTIES WITH 1 TO 2 INCHES FARTHER EAST OVER OKALOOSA 
COUNTY SINCE 3 AM. 

ALTHOUGH WIDESPREAD RAINS CONTINUE OVER THE WARNED AREA...LATEST 
RAINFALL RATES HAVE DIMINISHED TO 1 TO 2 INCHES PER HOUR. 

ADDITIONAL RAINS WILL AGGRAVATE ALREADY SIGNIFICANT AND WIDESPREAD 
FLOODING PROBLEMS THROUGH LATE MORNING. MANY STREETS ARE REPORTED 
IMPASSABLE BY COUNTY EMERGENCY MANAGEMENT PERSONNEL. MANY OTHER LOW 
LYING AND POOR DRAINAGE AREAS SUSCEPTIBLE TO FLOODING WILL BE 
IMPACTED AS WELL.    

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 3029 8751 3044 8737 3053 8744 3062 8739
      3068 8740 3071 8747 3083 8759 3082 8639
      3044 8638 3043 8642 3040 8638 3040 8677
TIME...MOT...LOC 1157Z 180DEG 0KT 3049 8697

$$

10

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 18, 9:22 PM CDTSpecial Marine WarningMOB23 min
Oct 18, 9:53 PM CDTSpecial Marine WarningMOB52 min
Oct 18, 10:40 PM CDTFlash Flood WatchMOB14 hr
Oct 19, 12:45 AM CDTFlash Flood WarningMOBEscambia, Okaloosa, Santa Rosa3 hr
Oct 19, 1:05 AM CDTMarine Weather StatementMOB115 min
Oct 19, 1:57 AM CDTSpecial Marine WarningMOB63 min
Oct 19, 3:54 AM CDTFlash Flood WarningMOBEscambia, Okaloosa, Santa Rosa3 hr
Oct 19, 4:58 AM CDTSpecial Marine WarningMOB107 min
Oct 19, 5:36 AM CDTSpecial Marine WarningMOB84 min
Oct 19, 6:58 AM CDTSpecial Marine WarningMOB92 min
Oct 19, 9:37 AM CDTFlash Flood WarningMOBEscambia, Okaloosa, Santa Rosa6 hr
Oct 19, 9:54 AM CDTRiver Flood WarningMOBOkaloosa49 hr
Oct 19, 1:47 PM CDTFire Weather WatchMOBWalton15 hr

Nearby

Flash Flood Warnings in Florida, 2007Every flash flood warning in 2007

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.