Alert archive / Alabama / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 113, NWS Mobile, AL

June 11, 2001Mobile County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Jun 11, 2001, 6:26 AM CDT for Mobile County, Alabama. It was in force for 64 min. 2 reports came from inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties, with what was reported inside it.

The facts

Issued: Jun 11, 2001, 6:26 AM CDT (11:26 UTC)
Expired: Jun 11, 2001, 7:30 AM CDT
In force: 64 min
Issued by: NWS Mobile, AL
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Mobile County, AL

What was reported inside it

Time	Report	Where	Remark
Jun 11, 7:20 AM CDT	Thunderstorm Wind 55 E	Grand Bay, AL	High winds from a thunderstorm blew trees and power lines down near Grand Bay.
Jun 11, 7:40 AM CDT	Tornado F0	(Mob)Mobile Bates Fl, AL	An F0 tornado first touched down in southwest Mobile county about 8 miles southwest of the Mobile Regional Airport. The initial touchdown was near Jeff Hamilton Road, just to the east of Newman Road. The weak tornado moved across open fields and forest, movi

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 nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 11.4 hours before the alert went out and 135 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: 877 J/kg
Mixed-layer CIN: -1 J/kg
Mixed-layer LCL: 567 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: -72 m²/s²
0-3 km storm-relative helicity: -75 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.

017 
WUUS54 KMOB 111126
SVRMOB
ALC097-111230-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
626 AM CDT MON JUN 11 2001

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  MOBILE COUNTY IN SOUTHWEST ALABAMA

* UNTIL 730 AM CDT

* AT 626 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS FROM 8 MILES WEST OF TANNER WILLIAMS
  TO 14 MILES SOUTHWEST OF GRAND BAY...MOVING EAST AT 25 MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR...
  TANNER WILLIAMS BY 640 AM CDT
  BIG CREEK LAKE DAM...DEES BY 645 AM CDT
  SEVEN HILLS BY 650 AM CDT
  SNOW AND TANNER WILLIAMS ROADS...BAYOU LA BATRE BY 655 AM CDT

SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES SUDDENLY. BE ALERT FOR 
RAPIDLY CHANGING WEATHER CONDITIONS AND BE READY TO TAKE COVER IN A 
STURDY SHELTER UNTIL THE STORMS HAVE PASSED.

LAT...LON 3072 8857 3052 8854 3026 8857 3024 8804
          3053 8802 3081 8803

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 11, 7:08 AM CDT	Tornado Warning	MOB	Mobile	37 min
Jun 11, 7:45 AM CDT	Tornado Warning	MOB	Mobile	30 min
Jun 11, 7:59 AM CDT	Severe Thunderstorm Warning	MOB	Baldwin	61 min
Jun 11, 8:06 AM CDT	Severe Thunderstorm Warning	MOB	Washington	24 min
Jun 11, 9:00 AM CDT	Severe Thunderstorm Warning	MOB	Baldwin, Escambia	60 min
Jun 11, 9:59 AM CDT	Tornado Warning	MOB	Baldwin	31 min
Jun 11, 1:03 PM CDT	Flash Flood Warning	MOB	Baldwin	12 hr
Jun 11, 5:41 PM CDT	Tornado Warning	MOB	Covington	34 min
Jun 11, 6:16 PM CDT	Tornado Warning	MOB	Covington	14 min

Nearby

Severe Thunderstorm Warnings in Alabama, 2001 Every severe thunderstorm warning in 2001

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.