Alert archive / Mississippi / Tornado Warnings in 2011

Tornado Warning 2, NWS Mobile, AL

March 5, 2011Greene County, Mississippi

NWS Mobile, AL issued this tornado warning at Mar 5, 2011, 10:46 AM CST for Greene County, Mississippi. It was in force for 44 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Mar 5, 2011, 10:46 AM CST (16:46 UTC)
Expired: Mar 5, 2011, 11:30 AM CST
In force: 44 min
Issued by: NWS Mobile, AL
Area: Storm-based polygon

County Greene County, MS

The radar

The Mobile radar (KMOB), 69 km from the middle of the area, began a volume at 16:47 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.

What was reported inside it

Time	Report	Where	Remark
Mar 5, 11:09 AM CST	FUNNEL CLOUD	Neely, MS	REPORT FROM SPOTTER

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

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 5, 8:54 AM CST	Tornado Watch	SPC	7 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 4.8 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: 960 J/kg
Mixed-layer CIN: -5 J/kg
Mixed-layer LCL: 451 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: 194 m²/s²
0-3 km storm-relative helicity: 264 m²/s²
Significant tornado parameter: 1.0
Supercell composite: 5.8

Open this sounding in Storm Lab

The text

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

710 
WFUS54 KMOB 051646
TORMOB
MSC041-051730-
/O.NEW.KMOB.TO.W.0002.110305T1646Z-110305T1730Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MOBILE AL
1046 AM CST SAT MAR 5 2011

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* TORNADO WARNING FOR...
  GREENE COUNTY IN SOUTHEAST MISSISSIPPI...
  THIS INCLUDES THE CITY OF LEAKESVILLE...

* UNTIL 1130 AM CST

* AT 1043 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 16 MILES WEST OF
  LEAKESVILLE...OR NEAR MCLAIN...MOVING NORTHEAST AT 25 MPH.

* THE TORNADO WILL BE NEAR...
  LEAKESVILLE AROUND 1115 AM 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.

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.

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.

&&

LAT...LON 3134 8868 3118 8849 3100 8876 3100 8877
      3100 8882 3103 8884 3117 8883
TIME...MOT...LOC 1647Z 228DEG 24KT 3111 8880

$$

1 follow-up statement

233 
WWUS54 KMOB 051729
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
1129 AM CST SAT MAR 5 2011

MSC041-051738-
/O.EXP.KMOB.TO.W.0002.000000T0000Z-110305T1730Z/
GREENE MS-
1129 AM CST SAT MAR 5 2011

...THE TORNADO WARNING FOR GREENE COUNTY WILL EXPIRE AT 1130 AM
CST...

A FUNNEL CLOUD WAS REPORTED NEAR NEELY BY A STORM SPOTTER AT 1106 
AM. VERY HEAY RAIN FELL ALONG THE PATCH OF THE THUNDERSTORM WITH 
RADAR INDICATING THAT 3...POSSIBLY 4 INCHES OF RAIN FELL IN A SHORT 
PERIOD OF TIME. 

LAT...LON 3134 8868 3118 8849 3100 8876 3100 8877
      3100 8882 3103 8884 3117 8883
TIME...MOT...LOC 1728Z 228DEG 24KT 3129 8856

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 5, 9:15 AM CST	Severe Thunderstorm Warning	MOB	George, Perry, Stone	26 min
Mar 5, 9:26 AM CST	Areal Flood Advisory	MOB	Stone	2 hr
Mar 5, 10:04 AM CST	Tornado Warning	MOB	Greene, Perry	41 min
Mar 5, 10:42 AM CST	Flash Flood Warning	MOB	Perry	2 hr
Mar 5, 11:26 AM CST	Areal Flood Advisory	MOB	Greene	2 hr
Mar 5, 11:54 AM CST	Severe Thunderstorm Warning	MOB	Greene	50 min
Mar 5, 11:58 AM CST	Areal Flood Advisory	MOB	Greene	2 hr
Mar 5, 12:50 PM CST	Flash Flood Warning	MOB	Greene, Perry	3 hr
Mar 5, 1:16 PM CST	Flash Flood Watch	MOB	George, Greene, Perry, Stone, Wayne	6 hr
Mar 5, 1:39 PM CST	Areal Flood Advisory	MOB	Greene, Perry, Wayne	2 hr
Mar 5, 2:50 PM CST	Flash Flood Warning	MOB	Stone	4 hr
Mar 5, 3:23 PM CST	Flash Flood Warning	MOB	Greene, Perry, Wayne	3 hr
Mar 5, 3:48 PM CST	Flash Flood Warning	MOB	Greene, Perry	3 hr
Mar 5, 4:17 PM CST	Areal Flood Advisory	MOB	George	118 min

Nearby

Tornado Warnings in Mississippi, 2011 Every tornado warning in 2011 Tornadoes in 2011

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.