Alert archive / Alabama / Flash Flood Warnings in 2004

Flash Flood Warning 9, NWS Mobile, AL

July 15, 2004Monroe County, Alabama

NWS Mobile, AL issued this flash flood warning at Jul 15, 2004, 5:30 PM CDT for Monroe County, Alabama. It was in force for 2 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: Jul 15, 2004, 5:30 PM CDT (22:30 UTC)
Expired: Jul 15, 2004, 7:30 PM CDT
In force: 2 hr
Issued by: NWS Mobile, AL
Area: Counties, with a storm outline in the text

County Monroe County, AL

The radar

The Mobile radar (KMOB), 131 km from the middle of the area, began a volume at 22:33 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

Eglin AFB/Valpar, FL (KVPS), launched 12:00Z, 10.5 hours before the alert went out and 151 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: 2319 J/kg
Mixed-layer CIN: -43 J/kg
Mixed-layer LCL: 930 m above ground
0-6 km bulk shear: 10 kt
0-1 km storm-relative helicity: 20 m²/s²
0-3 km storm-relative helicity: 38 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 152232
FFWMOB
ALC099-160030-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOBILE AL
530 PM CDT THU JUL 15 2004

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  MONROE COUNTY IN SOUTH CENTRAL ALABAMA

* UNTIL 730 PM CDT

* AT 528 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  VERY HEAVY RAIN FROM A THUNDERSTORM NEAR FINCHBURG...OR ABOUT 8
  MILES NORTHWEST OF MONROEVILLE...AND MOVING SOUTHEAST AT 5 MPH.

* THE THUNDERSTORM PRODUCING HEAVY RAIN WILL EFFECT AREAS AROUND...   
  FINCHBURG...KEITH..AND FOUNTAIN THROUGH 600 PM CDT.

RAINFALL AMOUNTS OF 3 TO 4 INCHES IN A SHORT PERIOD OF TIME ARE
LIKELY OVER THE WARNED AREA.

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 3174 8739 3163 8757 3137 8742 3155 8716

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 15, 4:43 PM CDT	Severe Thunderstorm Warning	MOB	Baldwin	32 min
Jul 15, 4:52 PM CDT	Severe Thunderstorm Warning	MOB	Monroe	23 min
Jul 15, 5:16 PM CDT	Severe Thunderstorm Warning	MOB	Monroe	29 min
Jul 15, 6:21 PM CDT	Severe Thunderstorm Warning	MOB	Monroe	24 min
Jul 15, 6:44 PM CDT	Severe Thunderstorm Warning	MOB	Crenshaw	46 min
Jul 15, 6:48 PM CDT	Severe Thunderstorm Warning	MOB	Conecuh, Monroe	27 min

Nearby

Flash Flood Warnings in Alabama, 2004 Every flash flood warning in 2004

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.