Alert archive / Alabama / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 54, NWS Birmingham, AL
NWS Birmingham, AL issued this severe thunderstorm warning at Mar 6, 1998, 6:32 PM CST for Lowndes County, Alabama. It was in force for 48 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Mar 6, 1998, 6:32 PM CST (00:32 UTC)
- Expired
- Mar 6, 1998, 7:20 PM CST
- In force
- 48 min
- Issued by
- NWS Birmingham, AL
- Area
- Whole counties
County Lowndes County, AL
The nearest sounding before it
Birmingham, AL (KBMX), launched 00:00Z, 0.5 hours before the alert went out and 115 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.
- Mixed-layer CAPE
- 99 J/kg
- Mixed-layer CIN
- -93 J/kg
- Mixed-layer LCL
- 556 m above ground
- 0-6 km bulk shear
- 62 kt
- 0-1 km storm-relative helicity
- 100 m²/s²
- 0-3 km storm-relative helicity
- 195 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.7
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
In the hours before
Special weather statement, Mar 6, 3:15 PM CST, 3 hours 17 minutes before
ALZALL-FLZ001>015-GAZ089-090-102-120-070000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BIRMINGHAM AL 315 PM CST FRI MAR 06 1998 ...SEVERE WEATHER POSSIBLE ACROSS ALABAMA...NORTHWEST FLORIDA AND PORTIONS OF WEST-CENTRAL GEORGIA THROUGHOUT THE WEEKEND... A DEVELOPING LOW PRESSURE SYSTEM OVER THE WESTERN U.S. WILL INTENSIFY AND MOVE RAPIDLY EASTWARD TONIGHT THROUGH SATURDAY NIGHT...THEN MOVE INTO THE STATE BY EARLY SUNDAY MORNING. A STRONG LOW LEVEL JET COUPLED WITH FAVORABLE UPPER FEATURES AND WARM MOIST AIR WILL ALLOW THE AIR MASS ACROSS THE AREA TO BECOME VERY UNSTABLE. STRONG TO SEVERE THUNDERSTORMS ARE EXPECTED TO DEVELOP ACROSS THE AREA FROM MAINLY SATURDAY AFTERNOON INTO EARLY SUNDAY MORNING. IN ADDITION TO THE SEVERE WEATHER THREAT...HEAVY RAINFALL WILL ALSO BE POSSIBLE. THIS STATEMENT IS BEING PROVIDED TO ALLOW EMERGENCY MANAGERS...LOCAL LAW ENFORCEMENT OFFICIALS...OTHER EMERGENCY PERSONNEL AND LOCAL POWER COMPANY PERSONNEL TIME TO MAKE SOME NECESSARY CONTINGENCY PLANS AND ALLOCATE MANPOWER AS NECESSARY. FURTHER STATEMENTS WILL BE ISSUED EARLY SATURDAY MORNING AS MORE DATA BECOMES AVAILABLE AND THE SITUATION BEGINS TO UNFOLD.
Special weather statement, Mar 6, 3:15 PM CST, 3 hours 17 minutes before
ALZALL-FLZ001>015-GAZ089-090-102-120-070000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BIRMINGHAM AL 315 PM CST FRI MAR 06 1998 ...SEVERE WEATHER POSSIBLE ACROSS ALABAMA...NORTHWEST FLORIDA AND PORTIONS OF WEST-CENTRAL GEORGIA THROUGHOUT THE WEEKEND... A DEVELOPING LOW PRESSURE SYSTEM OVER THE WESTERN U.S. WILL INTENSIFY AND MOVE RAPIDLY EASTWARD TONIGHT THROUGH SATURDAY NIGHT...THEN MOVE INTO THE STATE BY EARLY SUNDAY MORNING. A STRONG LOW LEVEL JET COUPLED WITH FAVORABLE UPPER FEATURES AND WARM MOIST AIR WILL ALLOW THE AIR MASS ACROSS THE AREA TO BECOME VERY UNSTABLE. STRONG TO SEVERE THUNDERSTORMS ARE EXPECTED TO DEVELOP ACROSS THE AREA FROM MAINLY SATURDAY AFTERNOON INTO EARLY SUNDAY MORNING. IN ADDITION TO THE SEVERE WEATHER THREAT...HEAVY RAINFALL WILL ALSO BE POSSIBLE. THIS STATEMENT IS BEING PROVIDED TO ALLOW EMERGENCY MANAGERS...LOCAL LAW ENFORCEMENT OFFICIALS...OTHER EMERGENCY PERSONNEL AND LOCAL POWER COMPANY PERSONNEL TIME TO MAKE SOME NECESSARY CONTINGENCY PLANS AND ALLOCATE MANPOWER AS NECESSARY. FURTHER STATEMENTS WILL BE ISSUED EARLY SATURDAY MORNING AS MORE DATA BECOMES AVAILABLE AND THE SITUATION BEGINS TO UNFOLD.
Special weather statement, Mar 6, 4:02 PM CST, 2 hours 30 minutes before
ALZ014-062220- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BIRMINGHAM AL 402 PM CST FRI MAR 6 1998 THE SEVERE THUNDERSTORM FOR EASTERN WINSTON COUNTY HAS BEEN CANCELLED. THE STORM HAS WEAKENEdD CONSIDERABLY AND IS NO LONGER PRODUCING LARGE HAIL.
Special weather statement, Mar 6, 4:02 PM CST, 2 hours 30 minutes before
ALZ014-062220- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BIRMINGHAM AL 402 PM CST FRI MAR 6 1998 THE SEVERE THUNDERSTORM WARNING FOR EASTERN WINSTON COUNTY HAS BEEN CANCELLED. THE STORM HAS WEAKENED CONSIDERABLY AND IS NO LONGER PRODUCING LARGE HAIL.
Special weather statement, Mar 6, 4:02 PM CST, 2 hours 30 minutes before
ALZ014-062220- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BIRMINGHAM AL 402 PM CST FRI MAR 6 1998 THE SEVERE THUNDERSTORM WARNING FOR EASTERN WINSTON COUNTY HAS BEEN CANCELLED. THE STORM HAS WEAKENED CONSIDERABLY AND IS NO LONGER PRODUCING LARGE HAIL.
Nearby
Severe Thunderstorm Warnings in Alabama, 1998Every severe thunderstorm 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.