Alert archive / Alabama / Tornado Warnings in 1999

Tornado Warning 33, NWS Mobile, AL

April 15, 1999Clarke County, Alabama

NWS Mobile, AL issued this tornado warning at Apr 15, 1999, 1:19 AM CDT for Clarke County, Alabama. It was in force for 71 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: Apr 15, 1999, 1:19 AM CDT (06:19 UTC)
Expired: Apr 15, 1999, 2:30 AM CDT
In force: 71 min
Issued by: NWS Mobile, AL
Area: Whole counties

County Clarke County, AL

The radar

The Mobile radar (KMOB), 118 km from the middle of the area, began a volume at 06:20 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.

What was reported inside it

Time	Report	Where	Remark
Apr 15, 2:00 AM CDT	Tornado F0	Thomasville, AL	A F0 tornado touched down along County Road 48 at Bashi Hwy or about 3 miles northwest of Thomasville. About 100 trees were blown down. Some trees were snapped off about 40 feet in the air; the branches below were completely stripped off. The tornado then s

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.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Apr 15, 12:00 AM CDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Birmingham, AL (KBMX), launched 00:00Z, 6.3 hours before the alert went out and 194 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 2269 m above ground
0-6 km bulk shear: 59 kt
0-1 km storm-relative helicity: 264 m²/s²
0-3 km storm-relative helicity: 501 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 KMOB 150619 RRA
TORMOB
ALC025-150730-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MOBILE AL
119 AM CDT THU APR 15 1999

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* TORNADO WARNING FOR...
  CLARKE COUNTY IN SOUTHWESTERN ALABAMA

* UNTIL 230 AM CDT

* AT 117 AM CDT... AS INDICATED BY DOPPLER RADAR A TORNADO WAS LOCATED
  34 MILES NORTHWEST OF JACKSON OR 16 MILES WEST OF WEST BEND...
  MOVING NORTHEAST AT 45 MPH.

* TORNADO WILL PASS NEAR-
  WEST BEND BY 135 AM CDT
  WOODS BLUFF BY 145 AM CDT
  MORVIN BY 150 AM CDT
  OPINE BY 150 AM CDT
  BASHI BY 200 AM CDT

IF YOU ARE IN THE PATH OF A TORNADO...SEEK SAFETY IN AN INTERIOR ROOM
SUCH AS A CLOSET ON THE LOWEST FLOOR. USE BLANKETS...PILLOWS...OR
CUSHIONS TO COVER YOUR BODY. STAY AWAY FROM WINDOWS.

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 15, 12:09 AM CDT	Severe Thunderstorm Warning	MOB	Choctaw	66 min
Apr 15, 12:22 AM CDT	Tornado Warning	MOB	Choctaw	68 min
Apr 15, 1:42 AM CDT	Severe Thunderstorm Warning	MOB	Washington	78 min
Apr 15, 2:07 AM CDT	Tornado Warning	MOB	Wilcox	68 min
Apr 15, 2:27 AM CDT	Severe Thunderstorm Warning	MOB	Clarke	78 min
Apr 15, 2:47 AM CDT	Severe Thunderstorm Warning	MOB	Monroe	73 min
Apr 15, 3:15 AM CDT	Severe Thunderstorm Warning	MOB	Wilcox	60 min
Apr 15, 3:28 AM CDT	Severe Thunderstorm Warning	MOB	Butler, Conecuh	62 min
Apr 15, 4:47 AM CDT	Severe Thunderstorm Warning	MOB	Butler, Crenshaw	58 min

Nearby

Tornado Warnings in Alabama, 1999 Every tornado warning in 1999 Tornadoes 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.