Alert archive / Mississippi / Tornado Warnings in 2007

Tornado Warning 33, NWS New Orleans, LA

October 22, 2007Harrison County, Mississippi

NWS New Orleans, LA issued this tornado warning at Oct 22, 2007, 7:46 PM CDT for Harrison County, Mississippi. It was in force for 29 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: Oct 22, 2007, 7:46 PM CDT (00:46 UTC)
Expired: Oct 22, 2007, 8:15 PM CDT
In force: 29 min
Issued by: NWS New Orleans, LA
Area: Storm-based polygon

County Harrison County, MS

The radar

The Mobile radar (KMOB), 77 km from the middle of the area, began a volume at 00:50 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
Oct 22, 5:11 PM CDT	Tornado Watch	SPC	8 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 0.8 hours before the alert went out and 74 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: 160 J/kg
Mixed-layer CIN: -100 J/kg
Mixed-layer LCL: 550 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 40 m²/s²
0-3 km storm-relative helicity: 228 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 8.2

Open this sounding in Storm Lab

The text

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

000 
WFUS54 KLIX 230046
TORLIX
MSC047-230115-
/O.NEW.KLIX.TO.W.0033.071023T0046Z-071023T0115Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NEW ORLEANS LA
746 PM CDT MON OCT 22 2007

THE NATIONAL WEATHER SERVICE IN NEW ORLEANS HAS ISSUED A

* TORNADO WARNING FOR...
  HARRISON COUNTY IN SOUTHERN MISSISSIPPI...

* UNTIL 815 PM CDT

* AT 744 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 6 MILES
  NORTHEAST OF LYMAN...OR ABOUT 12 MILES NORTH OF GULFPORT...MOVING
  NORTHEAST AT 40 MPH.

HEAVY RAINFALL MAY OBSCURE THIS TORNADO. TAKE COVER NOW IF YOU WAIT 
TO SEE OR HEAR IT COMING...IT MAY BE TOO LATE TO GET TO A SAFE PLACE.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 PM CDT MONDAY EVENING
FOR SOUTHEAST LOUISIANA AND SOUTHERN MISSISSIPPI.

LAT...LON 3067 8905 3067 8891 3047 8905 3051 8916
TIME...MOT...LOC 0046Z 209DEG 35KT 3057 8904

$$
92/JSS

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 22, 7:57 PM CDT	Flash Flood Warning	LIX	Pearl River	3 hr
Oct 22, 8:30 PM CDT	Flash Flood Warning	LIX	Pearl River	3 hr
Oct 23, 7:51 AM CDT	River Flood Warning	LIX	Pearl River	52 hr
Oct 23, 2:55 PM CDT	River Flood Warning	LIX	Pearl River	19 hr

Nearby

Tornado Warnings in Mississippi, 2007 Every tornado warning in 2007 Tornadoes in 2007

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.