Alert archive / Mississippi / Red Flag Warnings in 2012

Red Flag Warning 2, NWS New Orleans, LA

March 4, 20124 counties in Mississippi

NWS New Orleans, LA issued this red flag warning at Mar 4, 2012, 1:27 PM CST for 4 counties in Mississippi. It was in force for 4 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Mar 4, 2012, 1:27 PM CST (19:27 UTC)
Expired
Mar 4, 2012, 5:00 PM CST
In force
4 hr
Issued by
NWS New Orleans, LA

Counties Hancock County, MS, Harrison County, MS, Jackson County, MS, Pearl River County, MS

The radar

The Mobile radar (KMOB), 93 km from the middle of the area, began a volume at 19:26 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.

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 7.5 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-pSkew-T log-p diagram, Slidell Radar S, LA at 12:00Z on 2012-03-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Slidell Radar S, LA at 12:00Z on 2012-03-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -32 square meters per square second.1939587897117136Sfc1 km3 km6 km9 kmRMLM
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
2036 m above ground
0-6 km bulk shear
71 kt
0-1 km storm-relative helicity
-32 m²/s²
0-3 km storm-relative helicity
45 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.

988 
WWUS84 KLIX 041927
RFWLIX

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE NEW ORLEANS LA
127 PM CST SUN MAR 4 2012

...A RED FLAG WARNING HAS BEEN ISSUED UNTIL 5 PM THIS AFTERNOON
FOR COASTAL MISSISSIPPI...

.VERY LOW RELATIVE HUMIDITY AS LOW AS AROUND 20 PERCENT COMBINED
WITH GUSTY NORTHWEST WINDS NEAR 15 MPH AT TIMES WITH HIGHER GUSTS
ARE EXPECTED TO CONTINUE UNTIL 5 PM.

MSZ077-080>082-042300-
/O.NEW.KLIX.FW.W.0002.120304T1927Z-120304T2300Z/
PEARL RIVER-HANCOCK-HARRISON-JACKSON-
127 PM CST SUN MAR 4 2012

...RED FLAG WARNING IN EFFECT UNTIL 5 PM CST THIS AFTERNOON FOR
CRITICALLY LOW RELATIVE HUMIDITY AND STRONG WINDS.,. 

THE NATIONAL WEATHER SERVICE IN NEW ORLEANS HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT UNTIL 5 PM CST THIS AFTERNOON. 

* AFFECTED AREA...IN MISSISSIPPI...PEARL RIVER...HANCOCK...
  HARRISON...AND JACKSON

* WIND...NORTHWEST NEAR 15 MPH AT TIMES WITH HIGHER GUSTS NEAR 25
  MPH.

* HUMIDITY...15 TO 25 PERCENT.

* IMPACTS...ANY FIRES THAT DEVELOP WILL LIKELY SPREAD RAPIDLY. 
  OUTDOOR BURNING IS NOT RECOMMENDED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF
STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL
CREATE EXPLOSIVE FIRE GROWTH POTENTIAL.

&&

$$

22/TD

Nearby

Red Flag Warnings in Mississippi, 2012Every red flag warning 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.