Alert archive / Alabama / Severe Thunderstorm Warnings in 1989
Severe Thunderstorm Warning 60, NWS Mobile, AL
NWS Mobile, AL issued this severe thunderstorm warning at May 19, 1989, 3:28 PM CDT for Washington County, Alabama. It was in force for 47 min. 1 report 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
- May 19, 1989, 3:28 PM CDT (20:28 UTC)
- Expired
- May 19, 1989, 4:15 PM CDT
- In force
- 47 min
- Issued by
- NWS Mobile, AL
- Area
- Whole counties
County Washington County, AL
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 19, 4:15 PM CDT | Hail 0.75 | Washington, 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
Slidell Radar S, LA (KSIL), launched 12:00Z, 8.5 hours before the alert went out and 192 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
- 1927 J/kg
- Mixed-layer CIN
- -3 J/kg
- Mixed-layer LCL
- 623 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 111 m²/s²
- 0-3 km storm-relative helicity
- 158 m²/s²
- Significant tornado parameter
- 1.3
- Supercell composite
- 7.5
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
Local storm report, May 19, 11:56 AM CDT, 3 hours 32 minutes before
ATTN SELS
STORM REPORT...CORRECTION
NATIONAL WEATHER SERVICE MOBILE AL
115 AM CDT FRI MAY 19 1989
TIME CO/STATE EVENT
1230AM MOBILE/AL SEVERE THUNDERSTORM PRODUCED STREET FLOODING
IN DOWNTOWN SEMMES(10MI NW OF MOB). A LARGE
OAK TREE WAS ALSO BLOWN DOWN IN THE SAME AREA.
A SVR TSTM WARNING WAS IN EFFECT FOR MOBILE
aCNTY.Special weather statement, May 19, 3:22 PM CDT, 6 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE PENSACOLA FL 325 PM CDT FRI MAY 19 1989 ...THUNDERSTORMS NEARING THE WEST FLORIDA PANHANDLE... AT 325 PM CDT...SCATTERED THUNDERSTORMS...SOME WITH HEAVY RAIN...WERE MOVING INTO THE WEST PORTIONS OF ESCAMBIA COUNTY FLORIDA. THUNDERSTORMS EXTEND WEST OVER SOUTHWEST ALABAMA...COASTAL MISSISSIPPI AND THE ADJACENT COASTAL WATERS. MOVEMENTS WERE TOWARD THE NORTHEAST ABOUT 15 MILES AN HOUR.
The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 19, 12:11 AM CDT | Severe Thunderstorm Warning | MOB | Mobile | 49 min |
| May 19, 2:33 PM CDT | Tornado Warning | MOB | Baldwin | 12 min |
| May 19, 3:12 PM CDT | Tornado Warning | MOB | Hancock | 33 min |
| May 19, 3:18 PM CDT | Tornado Warning | MOB | Harrison | 12 min |
| May 19, 6:21 PM CDT | Flash Flood Warning | MOB | George | 3 hr |
Nearby
Severe Thunderstorm Warnings in Alabama, 1989Every severe thunderstorm warning in 1989
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.