Alert archive / Alabama / Flash Flood Warnings in 1999

Flash Flood Warning 22, NWS Birmingham, AL

June 15, 1999Lee County, Alabama

NWS Birmingham, AL issued this flash flood warning at Jun 15, 1999, 4:48 PM CDT for Lee 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 counties it named.

The facts

Issued
Jun 15, 1999, 4:48 PM CDT (21:48 UTC)
Expired
Jun 15, 1999, 6:50 PM CDT
In force
2 hr
Issued by
NWS Birmingham, AL
Area
Whole counties

County Lee County, AL

The radar

The Maxwell AFB radar (KMXX), 41 km from the middle of the area, began a volume at 21:50 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

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 9.8 hours before the alert went out and 117 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, Peachtre/Fal Fld, GA at 12:00Z on 1999-06-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Peachtre/Fal Fld, GA at 12:00Z on 1999-06-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 25 square meters per square second.1939Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
656 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
25 m²/s²
0-3 km storm-relative helicity
46 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 
TTAA00 KBHM 152149
FFWBHM
ALC081-152350-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
448 PM CDT TUE JUN 15 1999

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  LEE COUNTY... IN EAST CENTRAL ALABAMA

* UNTIL 650 PM CDT

AT 4:45 PM NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
CLUSTER OF STRONG THUNDERSTORMS OVER LEE COUNTY.  THE STRONGEST STORM
WAS JUST NORTHWEST OF THE AUBNURN AND PEPPERELL AREAS AND WAS
MOVING VERY SLOWLY NORTHEAST.  RAINFALL RATES OF THREE TO FOUR INCHES
PER HOUR ARE BEING PRODUCED BY THIS STORM.

DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD!

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 14, 7:26 PM CDTFlash Flood WarningBMXTalladega119 min
Jun 14, 8:06 PM CDTFlash Flood WarningBMXChambers119 min
Jun 15, 3:48 PM CDTFlash Flood WarningBMXAutauga, Elmore2 hr
Jun 15, 4:28 PM CDTFlash Flood WarningBMXDallas117 min

Nearby

Flash Flood Warnings in Alabama, 1999Every flash flood warning in 1999

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.