Alert archive / Alabama / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 67, NWS Mobile, AL

March 12, 2001Escambia County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Mar 12, 2001, 12:47 PM CST for Escambia County, Alabama. It was in force for 13 min. No storm report in the archive falls 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.

The facts

Issued: Mar 12, 2001, 12:47 PM CST (18:47 UTC)
Expired: Mar 12, 2001, 1:00 PM CST
In force: 13 min
Issued by: NWS Mobile, AL
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Escambia County, AL

The watch it was issued in

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

Issued	Product	Office	Lasted
Mar 12, 11:30 AM CST	Tornado Watch	SPC	4 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 6.8 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.

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: 1587 J/kg
Mixed-layer CIN: -38 J/kg
Mixed-layer LCL: 469 m above ground
0-6 km bulk shear: 55 kt
0-1 km storm-relative helicity: 367 m²/s²
0-3 km storm-relative helicity: 453 m²/s²
Significant tornado parameter: 4.1
Supercell composite: 19.2

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WUUS54 KMOB 121847 RRA
SVRMOB
ALC003-121930-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
1247 PM CST MON MAR 12 2001

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

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

* UNTIL 130 PM CST

* AT 1247 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM NEAR TURKEY BRANCH...MOVING EAST AT 45 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  MAGNOLIA SPRINGS...SILVERHILL BY 1250 PM CST
  BON SECOUR...FOLEY BY 1255 PM CST
  ELSANOR...MIFLIN BY 100 PM CST
  ELBERTA...ORANGE BEACH BY 105 PM CST

STRONG DAMAGING WIND...LARGE HAIL...AND HEAVY RAIN ARE LIKELY WITH
THIS STORM.  IF IN THE PATH OF THIS STORM...TAKE COVER IN A STURDY
SHELTER UNTIL THE STORM HAS PASSED.

A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA. REMEMBER...
SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH
LITTLE OR NO ADVANCE WARNING. REMAIN CALM BUT BE ALERT FOR RAPIDLY
CHANGING WEATHER CONDITIONS.

LAT...LON 3052 8792 3024 8796 3025 8773 3031 8749
          3045 8744 3059 8749

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 12, 1:58 AM CST	Severe Thunderstorm Warning	MOB	Mobile	32 min
Mar 12, 2:31 AM CST	Severe Thunderstorm Warning	MOB	Baldwin	44 min
Mar 12, 5:38 AM CST	Severe Thunderstorm Warning	MOB	Washington	37 min
Mar 12, 6:09 AM CST	Severe Thunderstorm Warning	MOB	Monroe	36 min
Mar 12, 6:16 AM CST	Severe Thunderstorm Warning	MOB	Clarke	29 min
Mar 12, 6:35 AM CST	Severe Thunderstorm Warning	MOB	Conecuh	25 min
Mar 12, 9:19 AM CST	Severe Thunderstorm Warning	MOB	Choctaw	26 min
Mar 12, 10:10 AM CST	Severe Thunderstorm Warning	MOB	Choctaw	50 min
Mar 12, 10:29 AM CST	Tornado Warning	MOB	Choctaw	31 min
Mar 12, 10:49 AM CST	Tornado Warning	MOB	Wilcox	26 min
Mar 12, 10:52 AM CST	Severe Thunderstorm Warning	MOB	Washington	33 min
Mar 12, 10:57 AM CST	Tornado Warning	MOB	Choctaw	18 min
Mar 12, 11:05 AM CST	Tornado Warning	MOB	Washington	10 min
Mar 12, 11:11 AM CST	Severe Thunderstorm Warning	MOB	Mobile	34 min
Mar 12, 11:27 AM CST	Severe Thunderstorm Warning	MOB	Baldwin	33 min
Mar 12, 11:40 AM CST	Severe Thunderstorm Warning	MOB	Butler, Conecuh, Escambia, Monroe, Wilcox	65 min
Mar 12, 11:44 AM CST	Severe Thunderstorm Warning	MOB	Mobile	31 min
Mar 12, 12:08 PM CST	Flash Flood Warning	MOB	Mobile	2 hr
Mar 12, 12:26 PM CST	Severe Thunderstorm Warning	MOB	Mobile	34 min
Mar 12, 12:40 PM CST	Severe Thunderstorm Warning	MOB	Covington, Crenshaw	50 min
Mar 12, 12:47 PM CST	Severe Thunderstorm Warning	MOB	Baldwin	43 min
Mar 12, 12:49 PM CST	Severe Thunderstorm Warning	MOB	Butler	41 min
Mar 12, 1:35 PM CST	Severe Thunderstorm Warning	MOB	Covington	10 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; the sounding from the Mesonet's radiosonde archive.