Alert archive / Alabama / Severe Thunderstorm Warnings in 1991
Severe Thunderstorm Warning 6, NWS Mobile, AL
NWS Mobile, AL issued this severe thunderstorm warning at Mar 1, 1991, 3:01 PM CST for Chambers County, Lee County, Alabama. It was in force for 35 min. 2 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Mar 1, 1991, 3:01 PM CST (21:01 UTC)
- Expired
- Mar 1, 1991, 3:36 PM CST
- In force
- 35 min
- Issued by
- NWS Mobile, AL
- Area
- Whole counties
Counties Chambers County, AL, Lee County, AL
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Mar 1, 3:10 PM CST | Thunderstorm Wind 0 | Chambers, AL | |
| Mar 1, 3:15 PM CST | Thunderstorm Wind 0 | Lee, AL |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.
The nearest sounding before it
Centreville/Bibb, AL (KCKL), launched 12:00Z, 9.0 hours before the alert went out and 171 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1376 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 228 m²/s²
- 0-3 km storm-relative helicity
- 276 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 1, 11:07 AM CST, 3 hours 54 minutes before
ALZ013-015-016-MSZ013-014-011900- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MOBILE AL 1105 AM CST FRI MAR 1 1991 ...SPECIAL MARINE WARNING IN EFFECT FOR THE MISSISSIPPI COASTAL WATER FROM THE MOUTH OF THE MISSISSIPPI RIVER TO OCEAN SPRINGS UNTIL NOON... ...TORNADO WATCH NUMBER 17 REMAINS IN EFFECT FOR ALL COUNTIES IN SOUTHEAST MISSISSIPPI AND SOUTHWEST ALABAMA AND THE ADJACENT COASTAL WATERS... AT 1100 AM NATIONAL WEATHER SERVICE RADARS SHOWED A LARGE AREA OF RAIN WITH IMBEDED THUNDERSTORMS COVERING MOST OF SOUTHEAST MISSISSIPPI AND SOUTHWEST ALABAMA AND THE ADJACENT COASTAL WATERS. THE STRONGEST STORMS WERE LOCATED IN A 50 MILE WIDE BAND FROM NEAR LEAKSVILLE MISSISSIPPI TO NEW ORLEANS LOUISIANNA. THE STORMS ARE MOVING TO THE NORTH AT 45 MPH. THESE STORMS HAVE PRODUCED WIND GUST IN EXCESS OF GALE FORCE OVER THE LOUISIANNA COASTAL WATERS AND GUST TO 40 TO 45 MPH ALONG THE MISSISSIPPI ALABAMA COAST. HEAVY RAIN.z..DANGEROUS LIGHTINING ALSO ACCOMPANY THESE STORMS. RESIDENCE SHOUD REMAIN ALERT AND BE READY TAKE SHELTER IF THREATENING WEATHER IS SPOTTED OR A WARNING IS ISSUED.
Special weather statement, Mar 1, 11:32 AM CST, 3 hours 29 minutes before
FLZ001>004-011835- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE PENSACOLA FL 1135 AM CST FRI MAR 1 1991 ...A TORNADO WATCH IS IN EFFECT FOR THE FOLLOWING COUNTIES IN NORTHWEST FLORIDA UNTIL 300 PM CST ESCAMBIA...SANTA ROSA...OKALOOSA.. AT 1130 AM CST...TWO CLUSTERS OF THUNDERSTORMS WITH HEAVY RAIN WERE 50 TO 75 MILES WEST OF NORTHWEST FLORIDA. THE CLOSEST CLUSTER WAS IN THE GULF 60 MILES SOUTH OF MOBILE WHILE THE OTHER CLUSTER WAS IN SOUTHEAST MISSISSIPPI SPREADING FROM BILOXI NORTH FOR 50 MILES. OTHER SHOWERS AND THUNDERSTORMS WERE SCATTERED IN CENTRAL AND NORTH ESCAMBIA...SANTA ROSA AND OKALOOSA COUNTIES OF FLORIDA. THE STRONGER THUNDERSTORMS WERE MOVING NORTHEAST AT 35 MILES AN HOUR WHICH SHOULD BRING THEM INTO THE PENSACOLA AREA SHORTLY AFTER 12 PM.
Special weather statement, Mar 1, 12:34 PM CST, 2 hours 27 minutes before
FLZ001>004-011935- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE PENSACOLA FL 1235 PM CST FRI MAR 1 1991 ...A TORNADO WATCH IS IN EFFECT FOR THE FOLLOWING COUNTIES IN NORTHWEST FLORIDA UNTIL 300 PM CST ESCAMBIA...SANTA ROSA...OKALOOSA.. AT 1230 PM CST...CLUSTERS OF THUNDERSTORMS WITH HEAVY RAIN WERE MOVING INTO NORTHWEST FLORIDA FROM SOUTHWEST ALABAMA AND THE ADJACENT COASTAL WATERS. THE STRONGER THUNDERSTORMS WERE 30 MILES SOUTHWEST OF PENSACOLA AND IN A SHORT LINE NEAR MOBILE. THE LINE WAS MOVING EAST AT 30 MILES AN HOUR WHILE THE INDIVIDUAL THUNDERSTORMS WERE MOVING NORTHEAST AT 40 MILES AN HOUR. PEOPLE IN NORTHWEST FLORIDA SHOULD KEEP INFORMED THIS AFTERNOON AND BE PREPARED TO TAKE COVER IF WARNINGS ARE ISSUED OR DANGEROUS THUNDERSTORMS APPROACH. ANY OF THE THUNDERSTORMS THIS AFTERNOON MAY BRING HEAVY RAIN...DAMAGING WINDS...HAIL OR A POSSIBLE TORNADO.
Local storm report, Mar 1, 1:02 PM CST, 1 hour 59 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE MOBILE AL
100 PM CST FRIDAY MAR 1 1991
TIME PLACE EVENT
1245 PM GROVE HILL ALABAMA...POSSIBLE TORNADO TREES AND
L POWER LINES DOWN.
1245 PM THOMASVILLE...TORNADO SITED DOING TREE TOP DAMAGE.Special weather statement, Mar 1, 1:42 PM CST, 1 hour 19 minutes before
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</html>The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 1, 12:39 PM CST | Tornado Warning | MOB | Wilcox | 66 min |
| Mar 1, 12:40 PM CST | Tornado Warning | MOB | Clarke | 20 min |
| Mar 1, 1:12 PM CST | Severe Thunderstorm Warning | MOB | Butler, Lowndes | 63 min |
| Mar 1, 1:21 PM CST | Tornado Warning | MOB | Baldwin | 54 min |
| Mar 1, 1:38 PM CST | Tornado Warning | MOB | Montgomery | 52 min |
| Mar 1, 6:35 AM CST | Severe Thunderstorm Warning | MOB | Harrison | 25 min |
| Mar 1, 11:27 AM CST | Severe Thunderstorm Warning | MOB | George, Jackson | 63 min |
Nearby
Severe Thunderstorm Warnings in Alabama, 1991Every severe thunderstorm warning in 1991
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.