Alert archive / Alabama / Flash Flood Warnings in 2001

Flash Flood Warning 35, NWS Birmingham, AL

August 10, 2001Madison County, Marshall County, Alabama

NWS Birmingham, AL issued this flash flood warning at Aug 10, 2001, 12:00 PM CDT for Madison County, Marshall County, Alabama. 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 counties it named.

The facts

Issued: Aug 10, 2001, 12:00 PM CDT (17:00 UTC)
Expired: Aug 10, 2001, 3:00 PM CDT
In force: 3 hr
Issued by: NWS Birmingham, AL
Area: Whole counties

Counties Madison County, AL, Marshall County, AL

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 5.0 hours before the alert went out and 157 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: 1330 J/kg
Mixed-layer CIN: -54 J/kg
Mixed-layer LCL: 825 m above ground
0-6 km bulk shear: 7 kt
0-1 km storm-relative helicity: -13 m²/s²
0-3 km storm-relative helicity: -7 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 KBMX 101659
FFWBHM
ALC089-095-102000-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
1200 PM CDT FRI AUG 10 2001

THE NATIONAL WEATHER SERVICE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHERN MADISON COUNTY IN NORTH CENTRAL ALABAMA
  MARSHALL COUNTY IN NORTHEAST ALABAMA

* UNTIL 300 PM CDT

* AT 1200 PM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY
  RAIN ABOUT 10 MILES NORTHEAST OF ARAB. RADAR ESTIMATES SHOW 3 TO 4 
INCHES OF RAIN NORTH OF ARAB AND OVER THE REDSTONE ARSENAL DURING 
THE PAST 3 HOURS. ADDITIONAL RAIN AMOUNTS OF 2 TO 5 INCHES ARE 
POSSIBLE AS THUNDERSTORMS CONTINUE TO TRAIN OVER THE AREA. 

THIS EXTENDS THE PREVIOUS FLOOD WARNINGS FOR THESE COUNTIES. 

MOST DEATHS IN FLASH FLOODING OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO
CROSS BRIDGES...DIPS...OR LOW SPOTS IF WATER COVERS THE ROADWAY.
NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL ONE...ON FOOT.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE. IF YOUR VEHICLE STALLS, ABANDON IT IMMEDIATELY AND SEEK
HIGHER GROUND.

TO REPORT SEVERE WEATHER HAVE THE NEAREST LAW ENFORCEMENT AGENCY
RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE.

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 10, 7:01 AM CDT	Flash Flood Warning	BMX	Madison, Marshall	3 hr
Aug 10, 8:30 AM CDT	Flash Flood Warning	BMX	Morgan	3 hr
Aug 10, 9:44 AM CDT	Flash Flood Warning	BMX	Jackson	3 hr
Aug 10, 9:45 AM CDT	Flash Flood Warning	BMX	Madison, Marshall	2 hr
Aug 10, 11:29 AM CDT	Flash Flood Warning	BMX	Morgan	3 hr

Nearby

Flash Flood Warnings in Alabama, 2001 Every flash flood warning in 2001

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.