Alert archive / Mississippi / Tornado Warnings in 2017

Tornado Warning 53, NWS Jackson, MS

April 30, 20174 counties in Mississippi

NWS Jackson, MS issued this tornado warning at Apr 30, 2017, 7:20 AM CDT for 4 counties in Mississippi. It was in force for 55 min. 1 report 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, 7:20 AM CDT (12:20 UTC)
Expired: Apr 30, 2017, 8:15 AM CDT
In force: 55 min
Issued by: NWS Jackson, MS
Area: Storm-based polygon
Tornado: Observed
Hail: 0.75 in

Counties Issaquena County, MS, Sharkey County, MS, Warren County, MS, Yazoo County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 74 km from the middle of the area, began a volume at 12:22 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

Time	Report	Where	Remark
Apr 30, 7:40 AM CDT	TSTM WND DMG	13 Nne Vicksburg, MS	TREES DOWN ALONG HWY 61N, POSSIBLE TORNADO.

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.

Issued	Product	Office	Lasted
Apr 30, 1:49 AM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 0.3 hours before the alert went out and 64 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: 647 J/kg
Mixed-layer CIN: -84 J/kg
Mixed-layer LCL: 920 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: 221 m²/s²
0-3 km storm-relative helicity: 398 m²/s²
Significant tornado parameter: 0.7
Supercell composite: 3.0

Open this sounding in Storm Lab

The text

As transmitted.

253 
WFUS54 KJAN 301220
TORJAN
MSC055-125-149-163-301315-
/O.NEW.KJAN.TO.W.0053.170430T1220Z-170430T1315Z/

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

The National Weather Service in Jackson has issued a

* Tornado Warning for...
  Northeastern Warren County in west central Mississippi...
  Southwestern Yazoo County in central Mississippi...
  Southeastern Issaquena County in west central Mississippi...
  Southeastern Sharkey County in west central Mississippi...

* Until 815 AM CDT
         
* At 720 AM CDT, a confirmed tornado was located over Vicksburg,
  moving northeast at 35 mph.

  HAZARD...Damaging tornado. 

  SOURCE...Radar confirmed tornado. 

  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 storm will be near...
  Redwood around 740 AM CDT. 
  Oak Ridge around 745 AM CDT. 
  Phoenix around 805 AM CDT. 

Other locations impacted by this tornadic thunderstorm include
Satartia and Bentonia.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

To repeat, a tornado is on the ground. 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 3248 9100 3249 9099 3251 9099 3274 9089
      3270 9029 3258 9043 3258 9045 3256 9045
      3252 9052 3251 9052 3251 9055 3250 9059
      3248 9061 3245 9060 3241 9064 3242 9097
      3243 9096 3245 9099 3244 9102
TIME...MOT...LOC 1220Z 217DEG 31KT 3234 9091 

TORNADO...OBSERVED
HAIL...<.75IN

$$

CME

3 follow-up statements

664 
WWUS54 KJAN 301235
SVSJAN

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

MSC055-125-149-163-301315-
/O.CON.KJAN.TO.W.0053.000000T0000Z-170430T1315Z/
Warren MS-Yazoo MS-Issaquena MS-Sharkey MS-
735 AM CDT SUN APR 30 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 815 AM CDT FOR
NORTHEASTERN WARREN...SOUTHWESTERN YAZOO...SOUTHEASTERN ISSAQUENA AND
SOUTHEASTERN SHARKEY COUNTIES...
        
At 735 AM CDT, a confirmed tornado was located over Redwood, moving
northeast at 35 mph.

HAZARD...Damaging tornado. 

SOURCE...Radar confirmed tornado. 

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 tornado will be near...
  Oak Ridge around 745 AM CDT. 
  Valley Park around 750 AM CDT. 

Other locations impacted by this tornadic thunderstorm include
Satartia and Bentonia.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

To repeat, a tornado is on the ground. 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 3274 9089 3270 9029 3258 9045 3251 9055
      3250 9059 3248 9061 3243 9072 3244 9095
      3253 9096
TIME...MOT...LOC 1235Z 211DEG 31KT 3246 9084 

TORNADO...OBSERVED
HAIL...0.00IN

$$

CME

197 
WWUS54 KJAN 301240 RRA
SVSJAN

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

MSC055-125-149-163-301315-
/O.CON.KJAN.TO.W.0053.000000T0000Z-170430T1315Z/
Warren MS-Yazoo MS-Issaquena MS-Sharkey MS-
740 AM CDT SUN APR 30 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 815 AM CDT FOR
NORTHEASTERN WARREN...SOUTHWESTERN YAZOO...SOUTHEASTERN ISSAQUENA AND
SOUTHEASTERN SHARKEY COUNTIES...
    
At 740 AM CDT, a severe thunderstorm capable of producing a tornado
was located over Redwood, moving northeast at 35 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...
  Oak Ridge around 745 AM CDT. 

Other locations impacted by this tornadic thunderstorm include
Satartia and Bentonia.

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 3274 9089 3270 9029 3258 9045 3251 9055
      3250 9059 3248 9061 3243 9072 3244 9095
      3253 9096
TIME...MOT...LOC 1240Z 217DEG 31KT 3250 9081 

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

$$

CME

849 
WWUS54 KJAN 301253
SVSJAN

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

MSC055-125-149-163-301315-
/O.CON.KJAN.TO.W.0053.000000T0000Z-170430T1315Z/
Warren MS-Yazoo MS-Issaquena MS-Sharkey MS-
753 AM CDT SUN APR 30 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 815 AM CDT FOR
NORTHEASTERN WARREN...SOUTHWESTERN YAZOO...EAST CENTRAL ISSAQUENA AND
SOUTHEASTERN SHARKEY COUNTIES...
    
At 753 AM CDT, a severe thunderstorm capable of producing a tornado
was located 7 miles north of Oak Ridge, or 9 miles east of Valley
Park, moving northeast at 35 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...
  Phoenix around 800 AM CDT. 

Other locations impacted by this tornadic thunderstorm include
Satartia.

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 3271 9041 3253 9058 3257 9089 3274 9089
TIME...MOT...LOC 1253Z 217DEG 32KT 3260 9072 

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

$$

CME

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 30, 5:29 AM CDT	Severe Thunderstorm Warning	JAN	Adams	61 min
Apr 30, 6:10 AM CDT	Flash Flood Warning	JAN	Adams	4 hr
Apr 30, 6:14 AM CDT	Tornado Warning	JAN	Adams	34 min
Apr 30, 6:34 AM CDT	Severe Thunderstorm Warning	JAN	Claiborne, Warren	56 min
Apr 30, 6:41 AM CDT	Severe Thunderstorm Warning	JAN	Claiborne, Jefferson	49 min
Apr 30, 6:43 AM CDT	Tornado Warning	JAN	Warren	62 min
Apr 30, 6:50 AM CDT	Severe Thunderstorm Warning	JAN	Adams, Franklin, Jefferson	55 min
Apr 30, 7:21 AM CDT	Tornado Warning	JAN	Claiborne, Copiah, Jefferson	39 min
Apr 30, 7:28 AM CDT	Tornado Warning	JAN	Claiborne, Hinds, Warren	62 min
Apr 30, 7:35 AM CDT	Severe Thunderstorm Warning	JAN	Copiah, Franklin, Lincoln	40 min
Apr 30, 7:56 AM CDT	Severe Thunderstorm Warning	JAN	Copiah, Hinds, Madison, Rankin, Simpson	64 min
Apr 30, 7:57 AM CDT	Tornado Warning	JAN	Hinds	48 min
Apr 30, 8:01 AM CDT	Tornado Warning	JAN	Copiah, Hinds, Rankin	44 min
Apr 30, 8:06 AM CDT	Severe Thunderstorm Warning	JAN	Humphreys, Yazoo	54 min
Apr 30, 8:12 AM CDT	Flash Flood Warning	JAN	Franklin, Lincoln	3 hr
Apr 30, 8:13 AM CDT	Tornado Warning	JAN	Hinds, Madison, Warren, Yazoo	62 min
Apr 30, 8:20 AM CDT	Tornado Warning	JAN	Holmes, Humphreys, Yazoo	55 min
Apr 30, 8:31 AM CDT	Tornado Warning	JAN	Hinds, Madison	59 min
Apr 30, 8:59 AM CDT	Severe Thunderstorm Warning	JAN	Rankin, Scott, Simpson, Smith	61 min
Apr 30, 9:00 AM CDT	Flash Flood Warning	JAN	Humphreys, Issaquena, Sharkey, Warren, Yazoo	3 hr
Apr 30, 9:05 AM CDT	Tornado Warning Tornado observed	JAN	Attala, Holmes, Madison, Yazoo	55 min
Apr 30, 9:09 AM CDT	Severe Thunderstorm Warning	JAN	Carroll, Holmes, Humphreys, Leflore	66 min
Apr 30, 9:18 AM CDT	Tornado Warning	JAN	Scott	42 min
Apr 30, 9:30 AM CDT	Flash Flood Warning	JAN	Attala, Holmes, Humphreys, Madison	3 hr
Apr 30, 9:37 AM CDT	Tornado Warning	JAN	Carroll, Holmes, Montgomery	53 min
Apr 30, 9:48 AM CDT	Tornado Warning Tornado observed	JAN	Leake, Neshoba, Newton, Scott	57 min
Apr 30, 9:50 AM CDT	Severe Thunderstorm Warning	JAN	Grenada, Leflore	40 min
Apr 30, 9:50 AM CDT	Severe Thunderstorm Warning	JAN	Covington, Jefferson Davis, Lamar, Marion	55 min
Apr 30, 9:53 AM CDT	Severe Thunderstorm Warning	JAN	Attala, Montgomery, Webster	52 min
Apr 30, 9:54 AM CDT	Flash Flood Warning	JAN	Copiah, Covington, Jefferson Davis, Lawrence, Simpson, Smith	3 hr
Apr 30, 10:05 AM CDT	Tornado Warning	JAN	Montgomery, Webster	27 min
Apr 30, 10:07 AM CDT	Severe Thunderstorm Warning	JAN	Kemper, Lauderdale, Neshoba, Newton	38 min
Apr 30, 10:16 AM CDT	Severe Thunderstorm Warning	JAN	Grenada, Montgomery	22 min
Apr 30, 10:22 AM CDT	Tornado Warning	JAN	Grenada	23 min
Apr 30, 10:33 AM CDT	Severe Thunderstorm Warning	JAN	Noxubee, Winston	57 min
Apr 30, 10:43 AM CDT	Severe Thunderstorm Warning	JAN	Covington, Forrest, Jones, Lamar	62 min
Apr 30, 10:45 AM CDT	Severe Thunderstorm Warning	JAN	Kemper, Lauderdale, Noxubee	60 min
Apr 30, 10:59 AM CDT	Tornado Warning	JAN	Kemper, Noxubee	43 min
Apr 30, 11:12 AM CDT	Flash Flood Warning	JAN	Covington, Forrest, Jones, Lamar, Marion	3 hr
Apr 30, 11:24 AM CDT	Severe Thunderstorm Warning	JAN	Lowndes	36 min
Apr 30, 11:33 AM CDT	Flash Flood Warning	JAN	Covington, Forrest, Jones	3 hr
Apr 30, 11:42 AM CDT	Tornado Warning	JAN	Lowndes	8 min
Apr 30, 12:31 PM CDT	Severe Thunderstorm Warning	JAN	Forrest, Jones	34 min

Nearby

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