Alert archive / Mississippi / Tornado Warnings in 2012

Tornado Warning 79, NWS New Orleans, LA

September 30, 2012Hancock County, Harrison County, Mississippi

NWS New Orleans, LA issued this tornado warning at Sep 30, 2012, 3:26 PM CDT for Hancock County, Harrison County, Mississippi. It was in force for 22 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: Sep 30, 2012, 3:26 PM CDT (20:26 UTC)
Expired: Sep 30, 2012, 3:48 PM CDT
In force: 22 min
Issued by: NWS New Orleans, LA
Area: Storm-based polygon

Counties Hancock County, MS, Harrison County, MS

The radar

The Mobile radar (KMOB), 97 km from the middle of the area, began a volume at 20:26 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
Sep 30, 3:34 PM CDT	TORNADO	12 Sw Saucier, MS	HARRISON COUNTY SHERIFFS DEPARTMENT RELAYED REPORTS FROM 911 CALLS OF A TORNADO TOUCHDOWN ON CEMETERY ROAD NEAR HIGHWAY 53.

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
Sep 30, 2:36 PM CDT	Tornado Watch	SPC	3 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 8.4 hours before the alert went out and 57 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: 1360 J/kg
Mixed-layer CIN: -3 J/kg
Mixed-layer LCL: 552 m above ground
0-6 km bulk shear: 20 kt
0-1 km storm-relative helicity: 105 m²/s²
0-3 km storm-relative helicity: 178 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.9

Open this sounding in Storm Lab

The text

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

558 
WFUS54 KLIX 302026
TORLIX
MSC045-047-302115-
/O.NEW.KLIX.TO.W.0079.120930T2026Z-120930T2115Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NEW ORLEANS LA
326 PM CDT SUN SEP 30 2012

THE NATIONAL WEATHER SERVICE IN NEW ORLEANS HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHEASTERN HANCOCK COUNTY IN SOUTHERN MISSISSIPPI...
  NORTHWESTERN HARRISON COUNTY IN SOUTHERN MISSISSIPPI...

* UNTIL 415 PM CDT

* AT 320 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 14 MILES
  SOUTHWEST OF SAUCIER...OR 8 MILES NORTHEAST OF DIAMONDHEAD...MOVING
  NORTHEAST AT 15 MPH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE SAFEST PLACE TO BE DURING A TORNADO IS UNDER A WORKBENCH OR OTHER
PIECE OF STURDY FURNITURE. 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.

PLEASE FOLLOW OUR OFFICE ON BOTH FACEBOOK AND TWITTER FOR MORE
INFORMATION ON SEVERE WEATHER AND TO RELAY WEATHER REPORTS AND
PHOTOS.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 PM CDT SUNDAY EVENING FOR
SOUTHEAST LOUISIANA AND SOUTHERN MISSISSIPPI.

&&

LAT...LON 3040 8926 3052 8942 3065 8931 3065 8925
      3067 8924 3069 8923 3068 8897
TIME...MOT...LOC 2025Z 206DEG 14KT 3051 8930

$$

98/SO

2 follow-up statements

573 
WWUS54 KLIX 302034
SVSLIX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NEW ORLEANS LA
334 PM CDT SUN SEP 30 2012

MSC045-047-302115-
/O.CON.KLIX.TO.W.0079.000000T0000Z-120930T2115Z/
HANCOCK MS-HARRISON MS-
334 PM CDT SUN SEP 30 2012

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 415 PM CDT FOR
NORTHWESTERN HARRISON AND NORTHEASTERN HANCOCK COUNTIES...

AT 330 PM CDT...THE PUBLIC REPORTED A TORNADO ON THE GROUND NEAR 
CEMETERY ROAD HEADING NORTH TOWARDS HIGHWAY 53.  THIS STORM WAS 
LOCATED 12 MILES SOUTHWEST OF SAUCIER...OR 11 MILES NORTHEAST OF 
DIAMONDHEAD...MOVING NORTHEAST AT 15 MPH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE SAFEST PLACE TO BE DURING A TORNADO IS UNDER A WORKBENCH OR OTHER
PIECE OF STURDY FURNITURE. 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.

PLEASE FOLLOW OUR OFFICE ON BOTH FACEBOOK AND TWITTER FOR MORE
INFORMATION ON SEVERE WEATHER AND TO RELAY WEATHER REPORTS AND
PHOTOS.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 PM CDT SUNDAY EVENING FOR
SOUTHEAST LOUISIANA AND SOUTHERN MISSISSIPPI.

&&

LAT...LON 3046 8923 3052 8942 3065 8931 3065 8925
      3069 8923 3068 8897
TIME...MOT...LOC 2034Z 206DEG 14KT 3054 8928

$$

98/SO

673 
WWUS54 KLIX 302048
SVSLIX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NEW ORLEANS LA
348 PM CDT SUN SEP 30 2012

MSC045-047-302058-
/O.CAN.KLIX.TO.W.0079.000000T0000Z-120930T2115Z/
HANCOCK MS-HARRISON MS-
348 PM CDT SUN SEP 30 2012

...THE TORNADO WARNING FOR NORTHWESTERN HARRISON AND NORTHEASTERN
HANCOCK COUNTIES IS CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED AND HAS MOVED OUT 
OF THE AREA. NO ADDITIONAL REPORTS OF A TORNADO ON THE GROUND OR 
DAMAGE HAVE BEEN RELAYED TO OUR OFFICE AT THIS TIME.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 PM CDT SUNDAY EVENING FOR
SOUTHEAST LOUISIANA AND SOUTHERN MISSISSIPPI.

LAT...LON 3046 8923 3052 8942 3065 8931 3065 8925
      3069 8923 3068 8897
TIME...MOT...LOC 2048Z 206DEG 14KT 3059 8925

$$

98/SO

The office that day

Everything else NWS New Orleans, LA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Sep 30, 12:17 AM CDT	River Flood Warning	LIX	Pike, Walthall	56 hr
Sep 30, 12:17 AM CDT	River Flood Warning	LIX	Pearl River	43 hr
Sep 30, 12:17 AM CDT	River Flood Warning	LIX	Pearl River	67 hr
Sep 30, 10:32 AM CDT	Areal Flood Advisory	LIX	Jackson	118 min
Sep 30, 1:51 PM CDT	Tornado Warning	LIX	Wilkinson	24 min
Sep 30, 2:48 PM CDT	Tornado Warning	LIX	Hancock, Pearl River	27 min
Sep 30, 3:15 PM CDT	Tornado Warning	LIX	Hancock, Pearl River	30 min
Sep 30, 5:37 PM CDT	Tornado Warning	LIX	Hancock, Harrison	38 min

Nearby

Tornado Warnings in Mississippi, 2012 Every tornado warning in 2012 Tornadoes in 2012

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.