Alert archive / Mississippi / Tornado Warnings in 2017

Tornado Warning 65, NWS Jackson, MS

April 30, 2017Montgomery County, Webster County, Mississippi

NWS Jackson, MS issued this tornado warning at Apr 30, 2017, 10:05 AM CDT for Montgomery County, Webster County, Mississippi. It was in force for 27 min. 5 reports 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
Apr 30, 2017, 10:05 AM CDT (15:05 UTC)
Expired
Apr 30, 2017, 10:32 AM CDT
In force
27 min
Issued by
NWS Jackson, MS
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.0 in

Counties Montgomery County, MS, Webster County, MS

The radar

The Columbus AFB radar (KGWX), 114 km from the middle of the area, began a volume at 15:08 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

TimeReportWhereRemark
Apr 30, 10:11 AM CDTTORNADO2 Sw Kilmichael, MSTHIS EF-1 TORNADO BEGAN ALONG VAIDEN KILMICHAEL RD SOUTH OF KILMICHAEL, TRACKING NORTHEASTWARD THROUGH KILMICHAEL, AND ENDED FOUR MILES NORTH OF KILMICHAEL. ESTIMATED MAXIMUM WIND WAS 110 MPH, MAX PATH WIDTH 970 YARDS, AND PATH LENGTH 6.67 MILES. ALONG THE PAT
Apr 30, 10:13 AM CDTTORNADO5 Nnw Kilmichael, MSEF-1 WITH MAX WINDS OF 100 MPH. PATH LENGTH: 5.66 MILES. MAX WIDTH: 800 YARDS. THE TORNADO BEGAN SOUTH OF ROBINSON-THOMPSON ROAD. AS IT TRACKED NORTHEAST, IT SNAPPED AND UPROOTED MANY SOFTWOOD AND HARDWOOD TREES ALONG ITS PATH. IT DISSIPATED ALONG OAK RIDGE RO
Apr 30, 10:18 AM CDTTORNADO12 Nw Walthall, MSEF-1 WITH 110 MPH MAX WINDS. 600 YARDS MAX WIDTH. 10.5 MILES IN LENGTH, BUT MAY HAVE CONTINUED INTO CALHOUN CO. THIS WILL BE COORDINATED WITH NWS MEMPHIS. THIS TORNADO BEGAN SOUTH OF KING ROAD NEAR THE MONTGOMERY AND WEBSTER COUNTY LINE. HERE, IT WAS ITS MOST
Apr 30, 10:19 AM CDTTORNADO7 Nne Kilmichael, MSEF-1 WITH 95 MPH MAX WINDS. 6.75 MILE PATH LENGTH. 650 YARDS MAX WIDTH. THE TORNADO BEGAN ALONG SALEM ROAD AND TRACKED TO THE NORTHEAST. AS IT DID, IT SNAPPED OR UPROOTED NUMEROUS TREES ALONG ITS PATH. IT CROSSED INTO WEBSTER COUNTY ALONG LODI ROAD AND CONTINU
Apr 30, 10:28 AM CDTTSTM WND DMG12 Nw Walthall, MSTREES DOWN IN CADERETTA, INCLUDING 2 ON HOMES.

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.

IssuedProductOfficeLasted
Apr 30, 7:32 AM CDTTornado WatchSPC7 hr

The nearest sounding before it

Little Rock, AR (KBYH), launched 12:00Z, 3.1 hours before the alert went out and 146 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, Little Rock, AR at 12:00Z on 2017-04-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 6 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, Little Rock, AR at 12:00Z on 2017-04-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -47 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
6 J/kg
Mixed-layer CIN
-292 J/kg
Mixed-layer LCL
811 m above ground
0-6 km bulk shear
57 kt
0-1 km storm-relative helicity
-47 m²/s²
0-3 km storm-relative helicity
91 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.1

Open this sounding in Storm Lab

The text

As transmitted.

429 
WFUS54 KJAN 301505
TORJAN
MSC097-155-301600-
/O.NEW.KJAN.TO.W.0065.170430T1505Z-170430T1600Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Jackson MS
1005 AM CDT SUN APR 30 2017

The National Weather Service in Jackson has issued a

* Tornado Warning for...
  Western Webster County in north central Mississippi...
  Central Montgomery County in north central Mississippi...

* Until 1100 AM CDT
    
* At 1005 AM CDT, a severe thunderstorm capable of producing a
  tornado was located near Vaiden, or 7 miles south of Winona, moving
  northeast at 50 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...
  Kilmichael around 1015 AM CDT. 
  Lodi and Sweatman around 1025 AM CDT. 
  Embry around 1035 AM CDT. 
  Bellefontaine around 1040 AM 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 3332 8964 3340 8965 3340 8967 3354 8969
      3368 8957 3368 8951 3372 8951 3372 8919
      3374 8919 3374 8916
TIME...MOT...LOC 1505Z 218DEG 44KT 3338 8968 

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

$$

CME
2 follow-up statements
256 
WWUS54 KJAN 301524
SVSJAN

Severe Weather Statement
National Weather Service Jackson MS
1024 AM CDT SUN APR 30 2017

MSC097-155-301600-
/O.CON.KJAN.TO.W.0065.000000T0000Z-170430T1600Z/
Webster MS-Montgomery MS-
1024 AM CDT SUN APR 30 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1100 AM CDT FOR
NORTHWESTERN WEBSTER AND NORTH CENTRAL MONTGOMERY COUNTIES...
    
At 1024 AM CDT, a severe thunderstorm capable of producing a tornado
was located near Sweatman, or 15 miles northeast of Winona, moving
northeast at 55 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...
  Embry around 1030 AM 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 3354 8939 3359 8965 3368 8957 3368 8951
      3372 8951 3372 8919 3374 8919 3374 8916
TIME...MOT...LOC 1524Z 211DEG 48KT 3362 8950 

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

$$

CME
087 
WWUS54 KJAN 301532
SVSJAN

Severe Weather Statement
National Weather Service Jackson MS
1032 AM CDT SUN APR 30 2017

MSC097-155-301541-
/O.CAN.KJAN.TO.W.0065.000000T0000Z-170430T1600Z/
Webster MS-Montgomery MS-
1032 AM CDT SUN APR 30 2017

...THE TORNADO WARNING FOR NORTHWESTERN WEBSTER AND NORTH CENTRAL
MONTGOMERY COUNTIES IS CANCELLED...
        
The storm which prompted the warning has moved out of the area.
Therefore the warning has been cancelled.

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

Remember, a Severe Thunderstorm Warning still remains in effect for
Webster and Northeast Montgomery counties.

LAT...LON 3354 8939 3359 8965 3368 8957 3368 8951
      3372 8951 3372 8919 3374 8919 3374 8916
TIME...MOT...LOC 1529Z 218DEG 44KT 3367 8945 

$$

CME

The office that day

Everything else NWS Jackson, MS issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 30, 5:29 AM CDTSevere Thunderstorm WarningJANAdams61 min
Apr 30, 6:10 AM CDTFlash Flood WarningJANAdams4 hr
Apr 30, 6:14 AM CDTTornado WarningJANAdams34 min
Apr 30, 6:34 AM CDTSevere Thunderstorm WarningJANClaiborne, Warren56 min
Apr 30, 6:41 AM CDTSevere Thunderstorm WarningJANClaiborne, Jefferson49 min
Apr 30, 6:43 AM CDTTornado WarningJANWarren62 min
Apr 30, 6:50 AM CDTSevere Thunderstorm WarningJANAdams, Franklin, Jefferson55 min
Apr 30, 7:20 AM CDTTornado Warning Tornado observedJANIssaquena, Sharkey, Warren, Yazoo55 min
Apr 30, 7:21 AM CDTTornado WarningJANClaiborne, Copiah, Jefferson39 min
Apr 30, 7:28 AM CDTTornado WarningJANClaiborne, Hinds, Warren62 min
Apr 30, 7:35 AM CDTSevere Thunderstorm WarningJANCopiah, Franklin, Lincoln40 min
Apr 30, 7:56 AM CDTSevere Thunderstorm WarningJANCopiah, Hinds, Madison, Rankin, Simpson64 min
Apr 30, 7:57 AM CDTTornado WarningJANHinds48 min
Apr 30, 8:01 AM CDTTornado WarningJANCopiah, Hinds, Rankin44 min
Apr 30, 8:06 AM CDTSevere Thunderstorm WarningJANHumphreys, Yazoo54 min
Apr 30, 8:12 AM CDTFlash Flood WarningJANFranklin, Lincoln3 hr
Apr 30, 8:13 AM CDTTornado WarningJANHinds, Madison, Warren, Yazoo62 min
Apr 30, 8:20 AM CDTTornado WarningJANHolmes, Humphreys, Yazoo55 min
Apr 30, 8:31 AM CDTTornado WarningJANHinds, Madison59 min
Apr 30, 8:59 AM CDTSevere Thunderstorm WarningJANRankin, Scott, Simpson, Smith61 min
Apr 30, 9:00 AM CDTFlash Flood WarningJANHumphreys, Issaquena, Sharkey, Warren, Yazoo3 hr
Apr 30, 9:05 AM CDTTornado Warning Tornado observedJANAttala, Holmes, Madison, Yazoo55 min
Apr 30, 9:09 AM CDTSevere Thunderstorm WarningJANCarroll, Holmes, Humphreys, Leflore66 min
Apr 30, 9:18 AM CDTTornado WarningJANScott42 min
Apr 30, 9:30 AM CDTFlash Flood WarningJANAttala, Holmes, Humphreys, Madison3 hr
Apr 30, 9:37 AM CDTTornado WarningJANCarroll, Holmes, Montgomery53 min
Apr 30, 9:48 AM CDTTornado Warning Tornado observedJANLeake, Neshoba, Newton, Scott57 min
Apr 30, 9:50 AM CDTSevere Thunderstorm WarningJANGrenada, Leflore40 min
Apr 30, 9:50 AM CDTSevere Thunderstorm WarningJANCovington, Jefferson Davis, Lamar, Marion55 min
Apr 30, 9:53 AM CDTSevere Thunderstorm WarningJANAttala, Montgomery, Webster52 min
Apr 30, 9:54 AM CDTFlash Flood WarningJANCopiah, Covington, Jefferson Davis, Lawrence, Simpson, Smith3 hr
Apr 30, 10:07 AM CDTSevere Thunderstorm WarningJANKemper, Lauderdale, Neshoba, Newton38 min
Apr 30, 10:16 AM CDTSevere Thunderstorm WarningJANGrenada, Montgomery22 min
Apr 30, 10:22 AM CDTTornado WarningJANGrenada23 min
Apr 30, 10:33 AM CDTSevere Thunderstorm WarningJANNoxubee, Winston57 min
Apr 30, 10:43 AM CDTSevere Thunderstorm WarningJANCovington, Forrest, Jones, Lamar62 min
Apr 30, 10:45 AM CDTSevere Thunderstorm WarningJANKemper, Lauderdale, Noxubee60 min
Apr 30, 10:59 AM CDTTornado WarningJANKemper, Noxubee43 min
Apr 30, 11:12 AM CDTFlash Flood WarningJANCovington, Forrest, Jones, Lamar, Marion3 hr
Apr 30, 11:24 AM CDTSevere Thunderstorm WarningJANLowndes36 min
Apr 30, 11:33 AM CDTFlash Flood WarningJANCovington, Forrest, Jones3 hr
Apr 30, 11:42 AM CDTTornado WarningJANLowndes8 min
Apr 30, 12:31 PM CDTSevere Thunderstorm WarningJANForrest, Jones34 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.