Alert archive / Alabama / Tornado Warnings in 2014

Tornado Warning 2, NWS Mobile, AL

February 20, 2014Clarke County, Washington County, Alabama

NWS Mobile, AL issued this tornado warning at Feb 20, 2014, 7:55 PM CST for Clarke County, Washington County, Alabama. It was in force for 35 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: Feb 20, 2014, 7:55 PM CST (01:55 UTC)
Expired: Feb 20, 2014, 8:30 PM CST
In force: 35 min
Issued by: NWS Mobile, AL
Area: Storm-based polygon

Counties Clarke County, AL, Washington County, AL

The radar

The Mobile radar (KMOB), 117 km from the middle of the area, began a volume at 01:56 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
Feb 20, 6:05 PM CST	Tornado Watch	SPC	7 hr

The nearest sounding before it

Birmingham, AL (KBMX), launched 00:00Z, 1.9 hours before the alert went out and 199 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: 755 J/kg
Mixed-layer CIN: -6 J/kg
Mixed-layer LCL: 734 m above ground
0-6 km bulk shear: 47 kt
0-1 km storm-relative helicity: 181 m²/s²
0-3 km storm-relative helicity: 208 m²/s²
Significant tornado parameter: 0.8
Supercell composite: 3.7

Open this sounding in Storm Lab

The text

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

303 
WFUS54 KMOB 210155
TORMOB
ALC025-129-210230-
/O.NEW.KMOB.TO.W.0002.140221T0155Z-140221T0230Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MOBILE AL
755 PM CST THU FEB 20 2014

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHERN CLARKE COUNTY IN SOUTHWEST ALABAMA...
  THIS INCLUDES THE CITY OF GROVE HILL...
  NORTH CENTRAL WASHINGTON COUNTY IN SOUTHWEST ALABAMA...

* UNTIL 830 PM CST

* AT 752 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 23 MILES WEST OF
  GROVE HILL...OR 12 MILES NORTHEAST OF CHATOM...MOVING NORTHEAST AT
  40 MPH.

* THE TORNADO WILL BE NEAR...
  7 MILES NORTHWEST OF GROVE HILL BY 825 PM CST...
  FULTON BY 830 PM CST...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

WHEN A TORNADO WARNING IS ISSUED BASED ON DOPPLER RADAR...IT MEANS
THAT STRONG ROTATION HAS BEEN DETECTED IN THE STORM. A TORNADO MAY
ALREADY BE ON THE GROUND...OR IS EXPECTED TO DEVELOP SHORTLY. IF YOU
ARE IN THE PATH OF THIS DANGEROUS STORM...MOVE INDOORS AND TO THE
LOWEST LEVEL OF THE BUILDING. STAY AWAY FROM WINDOWS. IF DRIVING...DO
NOT SEEK SHELTER UNDER A HIGHWAY OVERPASS.

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 100 AM CST FRIDAY MORNING FOR
SOUTHWESTERN ALABAMA AND SOUTHEAST MISSISSIPPI.

&&

LAT...LON 3171 8767 3152 8812 3163 8824 3170 8815
      3170 8809 3174 8810 3195 8783
TIME...MOT...LOC 0154Z 233DEG 35KT 3162 8813

$$

JP

2 follow-up statements

708 
WWUS54 KMOB 210207
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
807 PM CST THU FEB 20 2014

ALC129-210217-
/O.CAN.KMOB.TO.W.0002.000000T0000Z-140221T0230Z/
WASHINGTON AL-
807 PM CST THU FEB 20 2014

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

A TORNADO WATCH REMAINS IN EFFECT UNTIL 100 AM CST FRIDAY MORNING FOR
SOUTHWESTERN ALABAMA AND SOUTHEAST MISSISSIPPI.

LAT...LON 3195 8783 3171 8767 3158 8802 3158 8806
      3161 8808 3162 8807 3165 8809 3166 8808
      3168 8808 3173 8809
TIME...MOT...LOC 0207Z 233DEG 35KT 3170 8801

$$

ALC025-210230-
/O.CON.KMOB.TO.W.0002.000000T0000Z-140221T0230Z/
CLARKE AL-
807 PM CST THU FEB 20 2014

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 830 PM CST FOR NORTHERN
CLARKE COUNTY...

AT 805 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO.  THIS TORNADO WAS LOCATED NEAR TATTLERSVILLE...OR
14 MILES NORTHWEST OF JACKSON...MOVING NORTHEAST AT 40 MPH.

THE TORNADO WILL BE NEAR...
  CLARKSVILLE...ZIMCO AND MCENTYRE BY 815 PM CST...
  CHILTON...GREENWOOD AND PEACOCK BY 825 PM CST...
  SPRINGFIELD...MIDWAY AND FULTON BY 830 PM CST...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
STURDY 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 100 AM CST FRIDAY MORNING FOR
SOUTHWESTERN ALABAMA AND SOUTHEAST MISSISSIPPI.

&&

LAT...LON 3195 8783 3171 8767 3158 8802 3158 8806
      3161 8808 3162 8807 3165 8809 3166 8808
      3168 8808 3173 8809
TIME...MOT...LOC 0207Z 233DEG 35KT 3170 8801

$$

JP

934 
WWUS54 KMOB 210221
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
821 PM CST THU FEB 20 2014

ALC025-210230-
/O.CON.KMOB.TO.W.0002.000000T0000Z-140221T0230Z/
CLARKE AL-
821 PM CST THU FEB 20 2014

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 830 PM CST FOR NORTHERN
CLARKE COUNTY...

AT 819 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO.  THIS TORNADO WAS LOCATED NEAR CLARKSVILLE...OR 9
MILES WEST OF GROVE HILL...MOVING NORTHEAST AT 35 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO 
CHILTON...MIDWAY...SPRINGFIELD...GREENWOOD...PEACOCK AND FULTON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER IN A NEARBY REINFORCED
BUILDING. AS A LAST RESORT...SEEK SHELTER IN A CULVERT...DITCH OR LOW
SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 100 AM CST FRIDAY MORNING FOR
SOUTHWESTERN ALABAMA AND SOUTHEAST MISSISSIPPI.

&&

LAT...LON 3194 8781 3177 8769 3167 8795 3179 8802
TIME...MOT...LOC 0221Z 233DEG 31KT 3176 8791

$$

JP

The office that day

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

Issued	Product	Office	Counties	Lasted
Feb 20, 7:51 PM CST	Marine Dense Fog Advisory	MOB		7 hr
Feb 20, 8:27 PM CST	Severe Thunderstorm Warning	MOB	Clarke, Wilcox	63 min
Feb 20, 10:31 PM CST	Areal Flood Advisory	MOB	Choctaw	3 hr
Feb 20, 10:57 PM CST	Severe Thunderstorm Warning	MOB	Choctaw, Washington	78 min
Feb 21, 12:10 AM CST	Severe Thunderstorm Warning	MOB	Choctaw, Clarke, Washington	80 min
Feb 21, 12:34 AM CST	Areal Flood Advisory	MOB	Baldwin, Choctaw, Clarke, Mobile, Washington	116 min
Feb 21, 1:04 AM CST	Severe Thunderstorm Warning	MOB	Clarke, Monroe, Wilcox	41 min
Feb 21, 1:48 AM CST	Areal Flood Advisory	MOB	Baldwin, Clarke, Escambia, Mobile, Monroe	117 min
Feb 21, 1:52 AM CST	Severe Thunderstorm Warning	MOB	Baldwin, Mobile	53 min
Feb 21, 1:57 AM CST	Special Marine Warning	MOB		93 min
Feb 21, 2:34 AM CST	Severe Thunderstorm Warning	MOB	Baldwin	56 min
Feb 21, 2:46 AM CST	Areal Flood Advisory	MOB	Butler, Conecuh, Escambia, Monroe	119 min
Feb 21, 3:04 AM CST	Wind Advisory	MOB	Butler, Choctaw, Clarke, Conecuh, Covington, Crenshaw and 4 more	6 hr
Feb 21, 3:37 AM CST	Areal Flood Advisory	MOB	Baldwin, Butler, Conecuh, Covington, Crenshaw, Escambia	113 min
Feb 21, 3:54 AM CST	Areal Flood Advisory	MOB	Baldwin	2 hr
Feb 21, 3:54 AM CST	Special Marine Warning	MOB		96 min
Feb 21, 4:30 AM CST	Special Marine Warning	MOB		90 min
Feb 21, 4:42 AM CST	Special Marine Warning	MOB		93 min
Feb 21, 5:25 AM CST	Special Marine Warning	MOB		95 min
Feb 21, 10:46 AM CST	River Flood Warning	MOB	Choctaw, Clarke, Washington	3 days

Nearby

Tornado Warnings in Alabama, 2014 Every tornado warning in 2014 Tornadoes in 2014

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.