Alert archive / Mississippi / Tornado Warnings in 2017

Tornado Warning 110, NWS New Orleans, LA

August 30, 2017Jackson County, Mississippi

NWS New Orleans, LA issued this tornado warning at Aug 30, 2017, 12:14 PM CDT for Jackson County, Mississippi. It was in force for 31 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
Aug 30, 2017, 12:14 PM CDT (17:14 UTC)
Expired
Aug 30, 2017, 12:45 PM CDT
In force
31 min
Issued by
NWS New Orleans, LA
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.0 in

County Jackson County, MS

The radar

The Mobile radar (KMOB), 32 km from the middle of the area, began a volume at 17:18 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.

IssuedProductOfficeLasted
Aug 30, 10:22 AM CDTTornado WatchSPC8 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 5.2 hours before the alert went out and 116 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 2017-08-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1853 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°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 2017-08-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 270 square meters per square second.193958Sfc1 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
1853 J/kg
Mixed-layer CIN
-7 J/kg
Mixed-layer LCL
550 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
270 m²/s²
0-3 km storm-relative helicity
310 m²/s²
Significant tornado parameter
2.2
Supercell composite
13.7

Open this sounding in Storm Lab

The text

As transmitted.

399 
WFUS54 KLIX 301714
TORLIX
MSC059-301745-
/O.NEW.KLIX.TO.W.0110.170830T1714Z-170830T1745Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service New Orleans LA
1214 PM CDT WED AUG 30 2017

The National Weather Service in New Orleans has issued a

* Tornado Warning for...
  Central Jackson County in southern Mississippi...

* Until 1245 PM CDT
    
* At 1214 PM CDT, a severe thunderstorm capable of producing a
  tornado was located over Hickory Hills, or 7 miles west of
  Escatawpa, moving north at 45 mph.

  HAZARD...Tornado. 

  SOURCE...Radar indicated rotation. 

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely. 

* This dangerous storm will be near...
  Vancleave around 1230 PM CDT. 
  Wade and Hurley around 1235 PM CDT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to an interior room on the lowest floor of a
sturdy building. Avoid windows. If you are outdoors, in a mobile
home, or in a vehicle, move to the closest substantial shelter and
protect yourself from flying debris.

To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
New Orleans.

&&

LAT...LON 3046 8846 3034 8859 3038 8873 3073 8868
      3074 8841 3069 8841
TIME...MOT...LOC 1714Z 188DEG 37KT 3045 8866 

TORNADO...RADAR INDICATED
HAIL...0.00IN

$$

MJH
1 follow-up statement
509 
WWUS54 KLIX 301741
SVSLIX

Severe Weather Statement
National Weather Service New Orleans LA
1241 PM CDT WED AUG 30 2017

MSC059-301751-
/O.EXP.KLIX.TO.W.0110.000000T0000Z-170830T1745Z/
Jackson MS-
1241 PM CDT WED AUG 30 2017

...THE TORNADO WARNING FOR CENTRAL JACKSON COUNTY WILL EXPIRE AT 1245
PM CDT...
        
The storm which prompted the warning has moved out of the area.
Therefore the warning will be allowed to expire.

A tornado watch remains in effect until 600 PM CDT for southern
Mississippi.

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
New Orleans.

LAT...LON 3046 8846 3034 8859 3038 8873 3073 8868
      3074 8841 3069 8841
TIME...MOT...LOC 1741Z 188DEG 37KT 3072 8862 

$$

MJH

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 29, 8:18 PM CDTSpecial Weather StatementLIXHancock57 min
Aug 30, 12:45 AM CDTSpecial Weather StatementLIXJackson45 min
Aug 30, 2:00 AM CDTFlash Flood WarningLIXJackson2 hr
Aug 30, 2:18 AM CDTSevere Thunderstorm WarningLIXJackson27 min
Aug 30, 8:45 AM CDTSpecial Weather StatementLIXHancock30 min
Aug 30, 9:34 AM CDTSpecial Weather StatementLIXPearl River41 min
Aug 30, 10:07 AM CDTTornado WarningLIXPearl River23 min
Aug 30, 11:25 AM CDTSpecial Weather StatementLIXJackson65 min
Aug 30, 11:47 AM CDTTornado Warning Tornado observedLIXJackson28 min
Aug 30, 12:39 PM CDTSpecial Weather StatementLIXHarrison51 min
Aug 30, 1:27 PM CDTSevere Thunderstorm WarningLIXHarrison33 min
Aug 30, 1:53 PM CDTSpecial Weather StatementLIXPike52 min
Aug 30, 2:23 PM CDTSpecial Weather StatementLIXHarrison37 min

Nearby

Tornado Warnings in Mississippi, 2017Every tornado warning in 2017Tornadoes in 2017

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.