Alert archive / Mississippi / Tornado Warnings in 2008

Tornado Warning 16, NWS Mobile, AL

February 12, 2008Perry County, Mississippi

NWS Mobile, AL issued this tornado warning at Feb 12, 2008, 2:54 PM CST for Perry County, Mississippi. It was in force for 36 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 12, 2008, 2:54 PM CST (20:54 UTC)
Expired: Feb 12, 2008, 3:30 PM CST
In force: 36 min
Issued by: NWS Mobile, AL
Area: Storm-based polygon

County Perry County, MS

The radar

The Mobile radar (KMOB), 100 km from the middle of the area, began a volume at 20:57 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 12, 12:34 PM CST	Tornado Watch	SPC	7 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 8.9 hours before the alert went out and 137 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: 1161 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: 115 m²/s²
0-3 km storm-relative helicity: 147 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 
WFUS54 KMOB 122054
TORMOB
MSC111-122130-
/O.NEW.KMOB.TO.W.0016.080212T2054Z-080212T2130Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MOBILE AL
254 PM CST TUE FEB 12 2008

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHERN PERRY COUNTY IN SOUTHEAST MISSISSIPPI...

* UNTIL 330 PM CST

* AT 253 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR RICHTON...
  OR ABOUT 8 MILES NORTH OF NEW AUGUSTA...MOVING EAST AT 50 MPH.

* THE TORNADO WILL BE NEAR...
  RICHTON BY 305 PM 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. IN ADDITION TO THE TORNADO...THIS
STORM IS CAPABLE OF PRODUCING LARGE DAMAGING HAIL OR DAMAGING
STRAIGHT LINE WINDS.

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...DITCH OR LOW DEPRESSION AND COVER YOUR
HEAD WITH YOUR HANDS.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 PM CST TUESDAY EVENING
FOR SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA AND SOUTHEAST
MISSISSIPPI.

LAT...LON 3143 8883 3124 8883 3118 8912 3119 8914
      3133 8913 3144 8897
TIME...MOT...LOC 2054Z 248DEG 54KT 3132 8899

$$

1 follow-up statement

000 
WWUS54 KMOB 122101
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
301 PM CST TUE FEB 12 2008

MSC111-122130-
/O.CON.KMOB.TO.W.0016.000000T0000Z-080212T2130Z/
PERRY MS-
301 PM CST TUE FEB 12 2008

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 330 PM CST FOR
NORTHEASTERN PERRY COUNTY...

AT 259 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO.  THIS TORNADO WAS LOCATED NEAR RICHTON...OR ABOUT
11 MILES NORTH OF NEW AUGUSTA...MOVING NORTHEAST AT 50 MPH.

IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING HAIL 
TO THE SIZE OF QUARTERS AND DESTRUCTIVE STRAIGHT LINE WINDS.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 PM CST TUESDAY EVENING
FOR SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA AND SOUTHEAST
MISSISSIPPI.

LAT...LON 3143 8883 3131 8883 3130 8898 3135 8898
      3143 8892
TIME...MOT...LOC 2101Z 243DEG 50KT 3137 8891

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Feb 12, 2:33 PM CST	Severe Thunderstorm Warning	MOB	Greene, Perry, Wayne	57 min
Feb 12, 2:47 PM CST	Severe Thunderstorm Warning	MOB	Stone	43 min
Feb 12, 3:20 PM CST	Tornado Warning	MOB	Greene	25 min
Feb 12, 3:25 PM CST	Severe Thunderstorm Warning	MOB	George, Greene, Perry, Stone, Wayne	65 min
Feb 12, 3:36 PM CST	Tornado Warning	MOB	Greene, Wayne	39 min

Nearby

Tornado Warnings in Mississippi, 2008 Every tornado warning in 2008 Tornadoes in 2008

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.