Alert archive / Mississippi / Tornado Warnings in 2017

Tornado Warning 67, NWS New Orleans, LA

April 30, 2017Hancock County, Harrison County, Mississippi

NWS New Orleans, LA issued this tornado warning at Apr 30, 2017, 12:29 PM CDT for Hancock County, Harrison 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
Apr 30, 2017, 12:29 PM CDT (17:29 UTC)
Expired
Apr 30, 2017, 1:00 PM CDT
In force
31 min
Issued by
NWS New Orleans, LA
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.0 in

Counties Hancock County, MS, Harrison County, MS

The radar

The Mobile radar (KMOB), 92 km from the middle of the area, began a volume at 17:29 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
Apr 30, 7:32 AM CDTTornado WatchSPC7 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 5.5 hours before the alert went out and 60 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 2017-04-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1930 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 2017-04-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 171 square meters per square second.19395878Sfc1 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
1930 J/kg
Mixed-layer CIN
-9 J/kg
Mixed-layer LCL
551 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
171 m²/s²
0-3 km storm-relative helicity
232 m²/s²
Significant tornado parameter
1.4
Supercell composite
7.9

Open this sounding in Storm Lab

The text

As transmitted.

605 
WFUS54 KLIX 301729
TORLIX
MSC045-047-301800-
/O.NEW.KLIX.TO.W.0067.170430T1729Z-170430T1800Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service New Orleans LA
1229 PM CDT SUN APR 30 2017

The National Weather Service in New Orleans has issued a

* Tornado Warning for...
  Northern Harrison County in southern Mississippi...
  Northeastern Hancock County in southern Mississippi...

* Until 100 PM CDT
    
* At 1229 PM CDT, a severe thunderstorm capable of producing a
  tornado was located 7 miles northeast of Kiln, or 8 miles north of
  Diamondhead, moving northeast at 30 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...
  Lyman around 1250 PM CDT. 
  Saucier around 100 PM CDT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or 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.

&&

LAT...LON 3051 8895 3039 8940 3055 8948 3065 8929
      3065 8924 3068 8924 3068 8904
TIME...MOT...LOC 1729Z 245DEG 27KT 3051 8936 

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

$$

24/RR
3 follow-up statements
370 
WWUS54 KLIX 301742
SVSLIX

Severe Weather Statement
National Weather Service New Orleans LA
1242 PM CDT SUN APR 30 2017

MSC045-301752-
/O.CAN.KLIX.TO.W.0067.000000T0000Z-170430T1800Z/
Hancock MS-
1242 PM CDT SUN APR 30 2017

...THE TORNADO WARNING FOR NORTHEASTERN HANCOCK COUNTY IS
CANCELLED...
    
The tornadic thunderstorm which prompted the warning has moved out 
of the warned area. Therefore, the warning has been cancelled.

A tornado watch remains in effect until 300 PM CDT for southern
Mississippi.

LAT...LON 3055 8897 3050 8929 3056 8932 3063 8922
      3068 8904
TIME...MOT...LOC 1742Z 245DEG 27KT 3055 8925 

$$

MSC047-301800-
/O.CON.KLIX.TO.W.0067.000000T0000Z-170430T1800Z/
Harrison MS-
1242 PM CDT SUN APR 30 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 100 PM CDT FOR
NORTHWESTERN HARRISON COUNTY...
    
At 1242 PM CDT, a severe thunderstorm capable of producing a tornado
was located 8 miles northwest of Lyman, or 13 miles northeast of
Diamondhead, moving northeast at 30 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...
  Lyman around 1250 PM CDT. 
  Saucier around 100 PM CDT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or 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.

&&

LAT...LON 3055 8897 3050 8929 3056 8932 3063 8922
      3068 8904
TIME...MOT...LOC 1742Z 245DEG 27KT 3055 8925 

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

$$

24/RR
793 
WWUS54 KLIX 301752
SVSLIX

Severe Weather Statement
National Weather Service New Orleans LA
1252 PM CDT SUN APR 30 2017

MSC047-301800-
/O.CON.KLIX.TO.W.0067.000000T0000Z-170430T1800Z/
Harrison MS-
1252 PM CDT SUN APR 30 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 100 PM CDT FOR NORTH
CENTRAL HARRISON COUNTY...
    
At 1252 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Saucier, or 16 miles south of Wiggins, moving
northeast at 40 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 tornadic thunderstorm will remain over mainly rural areas of
north central Harrison County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or 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.

&&

LAT...LON 3063 8922 3068 8904 3062 8901 3059 8911
      3058 8918
TIME...MOT...LOC 1752Z 234DEG 35KT 3062 8915 

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

$$

24/RR
832 
WWUS54 KLIX 301802
SVSLIX

Severe Weather Statement
National Weather Service New Orleans LA
102 PM CDT SUN APR 30 2017

MSC047-301811-
/O.EXP.KLIX.TO.W.0067.000000T0000Z-170430T1800Z/
Harrison MS-
102 PM CDT SUN APR 30 2017

...THE TORNADO WARNING FOR NORTH CENTRAL HARRISON COUNTY HAS
EXPIRED...
                
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore the warning has been allowed to expire.  However gusty
winds and heavy rain are still possible with this thunderstorm.

Emergency Management is relaying some citizen reports of a funnel 
cloud that moved over the Wortham and Saucier area a few minutes 
ago. 

A tornado watch remains in effect until 300 PM CDT for southern
Mississippi.

LAT...LON 3063 8922 3068 8904 3062 8901 3059 8911
      3058 8918
TIME...MOT...LOC 1801Z 245DEG 27KT 3065 8908 

$$

24/RR

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 29, 11:32 PM CDTWind AdvisoryLIXAmite, Pearl River, Pike, Walthall, Wilkinson16 hr
Apr 30, 5:06 AM CDTSevere Thunderstorm WarningLIXWilkinson39 min
Apr 30, 5:45 AM CDTSevere Thunderstorm WarningLIXWilkinson45 min
Apr 30, 6:37 AM CDTSevere Thunderstorm WarningLIXAmite, Wilkinson38 min
Apr 30, 7:30 AM CDTSevere Thunderstorm WarningLIXAmite, Wilkinson30 min
Apr 30, 7:56 AM CDTSevere Thunderstorm WarningLIXAmite, Wilkinson34 min
Apr 30, 8:26 AM CDTTornado WarningLIXAmite, Pike34 min
Apr 30, 8:57 AM CDTSevere Thunderstorm WarningLIXAmite, Pike, Walthall33 min
Apr 30, 9:28 AM CDTTornado WarningLIXWalthall32 min
Apr 30, 9:31 AM CDTSevere Thunderstorm WarningLIXPike, Walthall44 min
Apr 30, 9:46 AM CDTRiver Flood WarningLIXHancock, Pearl River24 hr
Apr 30, 10:18 AM CDTSpecial Weather StatementLIXPearl River57 min
Apr 30, 11:11 AM CDTSpecial Weather StatementLIXHancock, Pearl River64 min
Apr 30, 11:16 AM CDTAreal Flood AdvisoryLIXHancock, Pearl River119 min
Apr 30, 11:57 AM CDTSpecial Weather StatementLIXHancock, Pearl River93 min
Apr 30, 1:22 PM CDTAreal Flood AdvisoryLIXHancock, Harrison, Pearl River3 hr
Apr 30, 1:37 PM CDTSpecial Weather StatementLIXHarrison, Jackson113 min
Apr 30, 3:53 PM CDTAreal Flood AdvisoryLIXJackson3 hr

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.