Alert archive / Alabama / Tornado Warnings in 2010

Tornado Warning 41, NWS Mobile, AL

November 30, 2010Clarke County, Washington County, Alabama

NWS Mobile, AL issued this tornado warning at Nov 30, 2010, 7:30 AM CST for Clarke County, Washington County, Alabama. It was in force for 30 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Nov 30, 2010, 7:30 AM CST (13:30 UTC)
Expired: Nov 30, 2010, 8:00 AM CST
In force: 30 min
Issued by: NWS Mobile, AL
Area: Storm-based polygon

Counties Clarke County, AL, Washington County, AL

The radar

The Mobile radar (KMOB), 118 km from the middle of the area, began a volume at 13:31 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.

The watch it was issued in

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

Issued	Product	Office	Lasted
Nov 30, 3:49 AM CST	Tornado Watch	SPC	8 hr

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 1.5 hours before the alert went out and 200 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: 444 J/kg
Mixed-layer CIN: -1 J/kg
Mixed-layer LCL: 484 m above ground
0-6 km bulk shear: 58 kt
0-1 km storm-relative helicity: 385 m²/s²
0-3 km storm-relative helicity: 473 m²/s²
Significant tornado parameter: 1.2
Supercell composite: 4.2

Open this sounding in Storm Lab

The text

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

271 
WFUS54 KMOB 301330
TORMOB
ALC025-129-301400-
/O.NEW.KMOB.TO.W.0041.101130T1330Z-101130T1400Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MOBILE AL
730 AM CST TUE NOV 30 2010

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* TORNADO WARNING FOR...
  CENTRAL CLARKE COUNTY IN SOUTHWEST ALABAMA...
  NORTH CENTRAL WASHINGTON COUNTY IN SOUTHWEST ALABAMA...

* UNTIL 800 AM CST

* AT 728 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 7 MILES
  NORTHEAST OF CHATOM...OR 12 MILES SOUTHEAST OF MILLRY...MOVING
  NORTHEAST AT 45 MPH.

* THE TORNADO WILL BE NEAR...
  FULTON AROUND 800 AM CST...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 AM CST TUESDAY MORNING
FOR SOUTHWESTERN ALABAMA AND SOUTHEAST MISSISSIPPI.

&&

LAT...LON 3194 8789 3179 8770 3142 8812 3154 8828
      3171 8812 3170 8809 3173 8809
TIME...MOT...LOC 1330Z 222DEG 37KT 3155 8813

$$

1 follow-up statement

991 
WWUS54 KMOB 301343
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
743 AM CST TUE NOV 30 2010

ALC129-301352-
/O.CAN.KMOB.TO.W.0041.000000T0000Z-101130T1400Z/
WASHINGTON AL-
743 AM CST TUE NOV 30 2010

...THE TORNADO WARNING FOR NORTH CENTRAL WASHINGTON COUNTY IS
CANCELLED...

AT 740 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
THAT THE STORM THAT PROMPTED THE WARNING HAS MOVED NORTHEAST OUT OF 
WASHINGTON COUNTY...THUS THE TORNADO WARNING HAS BEEN CANCELLED FOR 
WASHINGTON COUNTY.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 AM CST TUESDAY MORNING
FOR SOUTHWESTERN ALABAMA AND SOUTHEAST MISSISSIPPI. A TORNADO WATCH
ALSO REMAINS IN EFFECT UNTIL 200 PM CST TUESDAY AFTERNOON FOR
SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA.

LAT...LON 3158 8800 3160 8806 3167 8807 3194 8789
      3179 8770
TIME...MOT...LOC 1342Z 222DEG 37KT 3164 8803

$$

ALC025-301400-
/O.CON.KMOB.TO.W.0041.000000T0000Z-101130T1400Z/
CLARKE AL-
743 AM CST TUE NOV 30 2010

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 800 AM CST FOR CENTRAL
CLARKE COUNTY...

AT 740 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS
TORNADO WAS NEAR SALITPA...OR ABOUT 12 MILES NORTHWEST OF JACKSON...
MOVING NORTHEAST AT 45 MPH.

THE TORNADO WILL BE NEAR...
  WINN AROUND 750 AM CST...
  CLARKSVILLE...ZIMCO AND MCENTYRE AROUND 755 AM CST...
  CHILTON...PEACOCK...GREENWOOD AND SPRINGFIELD AROUND 800 AM CST...

THE SAFEST PLACE TO BE DURING A TORNADO IS ON THE LOWEST FLOOR OF A
STURDY BUILDING...PREFERABLY IN AN INTERIOR HALLWAY OR A ROOM SUCH AS
A CLOSET OR BATHROOM. IF POSSIBLE...GET UNDER A WORKBENCH OR OTHER
PIECE OF STURDY FURNITURE. USE BLANKETS OR PILLOWS TO COVER YOUR BODY
AND ALWAYS STAY AWAY FROM WINDOWS.

IF YOU ARE IN MOBILE HOME...EVACUATE IT AND GET ON THE LOWEST FLOOR
OF A NEARBY STURDY BUILDING OR IN AN UNDERGROUND STORM SHELTER. IF NO
SUBSTANTIAL SHELTER IS AVAILABLE AND A TORNADO IS FAST APPROACHING...
SEEK SHELTER IN A CULVERT...OR LIE FLAT IN THE NEAREST DITCH OR OTHER
LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 AM CST TUESDAY MORNING
FOR SOUTHWESTERN ALABAMA AND SOUTHEAST MISSISSIPPI. A TORNADO WATCH
ALSO REMAINS IN EFFECT UNTIL 200 PM CST TUESDAY AFTERNOON FOR
SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA.

LAT...LON 3158 8800 3160 8806 3167 8807 3194 8789
      3179 8770
TIME...MOT...LOC 1342Z 222DEG 37KT 3164 8803

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Nov 30, 4:03 AM CST	Tornado Warning	MOB	Clarke, Washington	42 min
Nov 30, 4:40 AM CST	Tornado Warning	MOB	Clarke	24 min
Nov 30, 5:24 AM CST	Tornado Warning	MOB	Washington	36 min
Nov 30, 5:27 AM CST	Tornado Warning	MOB	Washington	24 min
Nov 30, 6:00 AM CST	Tornado Warning	MOB	Washington	30 min
Nov 30, 6:04 AM CST	Severe Thunderstorm Warning	MOB	Clarke, Washington	26 min
Nov 30, 6:24 AM CST	Tornado Warning	MOB	Clarke, Washington	36 min
Nov 30, 6:29 AM CST	Severe Thunderstorm Warning	MOB	Clarke, Wilcox	31 min
Nov 30, 6:53 AM CST	Tornado Warning	MOB	Clarke, Wilcox	37 min
Nov 30, 7:28 AM CST	Severe Thunderstorm Warning	MOB	Wilcox	32 min
Nov 30, 7:35 AM CST	Severe Thunderstorm Warning	MOB	Washington	40 min
Nov 30, 7:57 AM CST	Tornado Warning	MOB	Clarke, Wilcox	33 min
Nov 30, 9:10 AM CST	Tornado Warning	MOB	Wilcox	13 min
Nov 30, 9:46 AM CST	Special Marine Warning	MOB		89 min
Nov 30, 10:59 AM CST	Severe Thunderstorm Warning	MOB	Covington	18 min
Nov 30, 11:53 AM CST	Special Marine Warning	MOB		112 min
Nov 30, 11:54 AM CST	Severe Thunderstorm Warning	MOB	Covington	22 min
Nov 30, 1:01 PM CST	Small Craft Advisory	MOB		20 hr
Nov 30, 1:03 PM CST	Special Marine Warning	MOB		117 min
Nov 30, 1:25 PM CST	Special Marine Warning	MOB		95 min

Nearby

Tornado Warnings in Alabama, 2010 Every tornado warning in 2010 Tornadoes in 2010

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; radar from the NEXRAD Level II archive.