Alert archive / Alabama / Flash Flood Warnings in 1998

Flash Flood Warning 56, NWS Birmingham, AL

July 14, 1998Lauderdale County, Alabama

NWS Birmingham, AL issued this flash flood warning at Jul 14, 1998, 6:32 PM CDT for Lauderdale County, Alabama. It was in force for 12 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: Jul 14, 1998, 6:32 PM CDT (23:32 UTC)
Expired: Jul 15, 1998, 6:20 AM CDT
In force: 12 hr
Issued by: NWS Birmingham, AL
Area: Whole counties

County Lauderdale County, AL

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 11.5 hours before the alert went out and 167 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: 149 J/kg
Mixed-layer CIN: -23 J/kg
Mixed-layer LCL: 748 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: 130 m²/s²
0-3 km storm-relative helicity: 180 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KBHM 142332
FFWBHM
ALC077-151120-

BULLETIN - EAS ACTIVATION REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
632 PM CDT TUE JUL 14 1998

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A

* FLOOD WARNING FOR...
  LAUDERDALE COUNTY... IN NORTHERN ALABAMA

* UNTIL 620 AM CDT

* AT 630 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADARS SHOWED
  SHOWERS AND THUNDERSTORMS...WITH VERY HEAVY RAIN...CONTINUED TO
  MOVE FROM SOUTH TO NORTH AROUND 20 MPH ACROSS LAUDERDALE COUNTY.
  EVEN MORE RAIN WILL BE MOVING IN FROM THE SOUTH OVERNIGHT TONIGHT.

* WIDESPREAD FLOODING CONTINUES ALONG SHOAL CREEK IN THE VICINITY OF
  ROUTE 8...AND MANY OTHER STREAMS AND CREEKS ACROSS THE COUNTY ARE
  ALSO NEAR OR ABOVE BANKFULL.  RUNOFF FROM PREVIOUS RAINFALL
  CONTINUES AND ADDITIONAL RAIN IS EXPECTED TO MOVE ACROSS THIS SAME
  AREA DURING THE OVERNIGHT HOURS.  FLOODING CONDITIONS ARE NOT
  EXPECTED TO IMPROVE AND WILL ONLY GET WORSE WITH ANY ADDITIONAL
  RAINFALL.  IT IS POSSIBLE THAT PARTS OF LAUDERDALE COUNTY COULD SEE
  AN ADDITIONAL ONE TO THREE INCHES OF RAINFALL BY MORNING.

ANYONE IN LAUDERDALE COUNTY OR PLANNING TRAVEL THROUGH THIS AREA
OVERNIGHT TONIGHT SHOULD BE EXTREMELY CAUTIOUS.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO
CROSS SAFELY AND THE ROAD BENEATH MAY NOT BE INTACT. VEHICLES
CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY. IT ONLY TAKE>S
A FOOT OR TWO OF FLOWING WATER TO WASH MOST CARS AWAY. REMEMBER...
MOST DEATHS IN FLASH FLOODING OCCUR IN AUTOMOBILES.

&

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 13, 11:26 PM CDT	Flash Flood Warning	BMX	Colbert, Lauderdale	4 hr
Jul 13, 11:26 PM CDT	Flash Flood Warning	BMX	Franklin	4 hr
Jul 14, 9:15 AM CDT	Flash Flood Warning	BMX	Lauderdale	3 hr
Jul 14, 12:13 PM CDT	Flash Flood Warning	BMX	Lauderdale	3 hr
Jul 14, 3:26 PM CDT	Flash Flood Warning	BMX	Lauderdale	3 hr

Nearby

Flash Flood Warnings in Alabama, 1998 Every flash flood warning in 1998

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.