Alert archive / Mississippi / Tornado Warnings in 2018

Tornado Warning 77, NWS Jackson, MS

November 1, 2018Forrest County, Lamar County, Mississippi

NWS Jackson, MS issued this tornado warning at Nov 1, 2018, 4:36 AM CDT for Forrest County, Lamar County, Mississippi. It was in force for 21 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: Nov 1, 2018, 4:36 AM CDT (09:36 UTC)
Expired: Nov 1, 2018, 4:57 AM CDT
In force: 21 min
Issued by: NWS Jackson, MS
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

Counties Forrest County, MS, Lamar County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 116 km from the middle of the area, began a volume at 09:39 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
Nov 1, 4:42 AM CDT	TSTM WND DMG	6 W West Hattiesburg, MS	SEVERAL TREES DOWN AROUND THE CANEBRAKE COUNTRY CLUB AND BELLEVUE AREAS. REPORT RELAYED VIA SOCIAL MEDIA.

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
Oct 31, 11:07 PM CDT	Tornado Watch	SPC	9 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 9.6 hours before the alert went out and 121 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: 90 J/kg
Mixed-layer CIN: -11 J/kg
Mixed-layer LCL: 957 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 155 m²/s²
0-3 km storm-relative helicity: 214 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 3.4

Open this sounding in Storm Lab

The text

As transmitted.

530 
WFUS54 KJAN 010936
TORJAN
MSC035-073-011030-
/O.NEW.KJAN.TO.W.0077.181101T0936Z-181101T1030Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Jackson MS
436 AM CDT THU NOV 1 2018

The National Weather Service in Jackson has issued a

* Tornado Warning for...
  Northwestern Forrest County in southeastern Mississippi...
  Northern Lamar County in southeastern Mississippi...

* Until 530 AM CDT.
    
* At 436 AM CDT, a severe thunderstorm capable of producing a tornado
  was located 7 miles west of West Hattiesburg, 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 dangerous storm will be near...
  Hattiesburg and Oak Grove around 440 AM CDT.
  West Hattiesburg around 445 AM CDT.
  Rawls Springs around 450 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 3129 8963 3144 8951 3143 8921 3118 8948
TIME...MOT...LOC 0936Z 218DEG 35KT 3130 8951 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

19

1 follow-up statement

030 
WWUS54 KJAN 010957
SVSJAN

Severe Weather Statement
National Weather Service Jackson MS
457 AM CDT THU NOV 1 2018

MSC035-073-011007-
/O.CAN.KJAN.TO.W.0077.000000T0000Z-181101T1030Z/
Forrest MS-Lamar MS-
457 AM CDT THU NOV 1 2018

...THE TORNADO WARNING FOR NORTHWESTERN FORREST AND NORTHERN LAMAR
COUNTIES IS CANCELLED...
                
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 cancelled.

A Tornado Watch remains in effect until 700 AM CDT for southeastern
Mississippi.

LAT...LON 3129 8963 3144 8951 3143 8921 3118 8948
TIME...MOT...LOC 0956Z 218DEG 35KT 3146 8936 

$$

19

The office that day

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

Issued	Product	Office	Counties	Lasted
Nov 1, 1:30 AM CDT	Severe Thunderstorm Warning	JAN	Adams, Claiborne, Jefferson	90 min
Nov 1, 1:42 AM CDT	Severe Thunderstorm Warning	JAN	Issaquena, Sharkey, Warren	63 min
Nov 1, 1:46 AM CDT	Severe Thunderstorm Warning	JAN	Bolivar, Humphreys, Issaquena, Sharkey, Sunflower, Washington	59 min
Nov 1, 1:53 AM CDT	Tornado Warning	JAN	Adams, Jefferson	42 min
Nov 1, 2:00 AM CDT	Tornado Warning	JAN	Issaquena, Sharkey, Yazoo	45 min
Nov 1, 2:06 AM CDT	Severe Thunderstorm Warning	JAN	Claiborne, Franklin, Jefferson, Warren	54 min
Nov 1, 2:22 AM CDT	Tornado Warning Tornado observed	JAN	Franklin, Jefferson	53 min
Nov 1, 2:26 AM CDT	Tornado Warning	JAN	Adams, Franklin	49 min
Nov 1, 2:29 AM CDT	Tornado Warning	JAN	Claiborne, Copiah, Hinds, Warren	47 min
Nov 1, 2:34 AM CDT	Severe Thunderstorm Warning	JAN	Copiah, Hinds, Lincoln	86 min
Nov 1, 2:37 AM CDT	Severe Thunderstorm Warning	JAN	Carroll, Grenada, Holmes, Humphreys, Leflore	53 min
Nov 1, 2:39 AM CDT	Severe Thunderstorm Warning	JAN	Holmes, Humphreys, Madison, Warren, Yazoo	66 min
Nov 1, 2:41 AM CDT	Tornado Warning	JAN	Hinds, Madison, Warren	49 min
Nov 1, 3:05 AM CDT	Tornado Warning	JAN	Copiah, Lincoln	42 min
Nov 1, 3:07 AM CDT	Tornado Warning	JAN	Holmes, Madison, Yazoo	40 min
Nov 1, 3:21 AM CDT	Severe Thunderstorm Warning	JAN	Madison, Rankin	84 min
Nov 1, 3:24 AM CDT	Severe Thunderstorm Warning	JAN	Carroll, Choctaw, Grenada, Montgomery, Webster	51 min
Nov 1, 3:28 AM CDT	Severe Thunderstorm Warning	JAN	Attala, Holmes	62 min
Nov 1, 3:32 AM CDT	Severe Thunderstorm Warning	JAN	Jefferson Davis, Lawrence, Simpson	88 min
Nov 1, 3:34 AM CDT	Tornado Warning	JAN	Madison, Rankin	38 min
Nov 1, 3:53 AM CDT	Severe Thunderstorm Warning	JAN	Leake, Scott, Smith	85 min
Nov 1, 3:56 AM CDT	Tornado Warning Tornado observed	JAN	Rankin	15 min
Nov 1, 4:01 AM CDT	Tornado Warning Tornado observed	JAN	Marion	20 min
Nov 1, 4:19 AM CDT	Severe Thunderstorm Warning	JAN	Lamar	56 min
Nov 1, 4:23 AM CDT	Severe Thunderstorm Warning	JAN	Marion	39 min
Nov 1, 4:26 AM CDT	Severe Thunderstorm Warning	JAN	Choctaw, Clay, Oktibbeha, Webster	49 min
Nov 1, 4:29 AM CDT	Tornado Warning	JAN	Leake, Scott	27 min
Nov 1, 4:32 AM CDT	Tornado Warning	JAN	Scott, Smith	41 min
Nov 1, 4:34 AM CDT	Severe Thunderstorm Warning	JAN	Attala, Choctaw, Winston	35 min
Nov 1, 4:40 AM CDT	Severe Thunderstorm Warning	JAN	Covington	50 min
Nov 1, 4:54 AM CDT	Severe Thunderstorm Warning	JAN	Kemper, Lauderdale, Neshoba, Newton	66 min
Nov 1, 4:54 AM CDT	Tornado Warning	JAN	Jasper, Newton, Scott, Smith	54 min
Nov 1, 5:03 AM CDT	Severe Thunderstorm Warning	JAN	Jasper	72 min
Nov 1, 5:04 AM CDT	Severe Thunderstorm Warning	JAN	Jones	56 min
Nov 1, 5:08 AM CDT	Severe Thunderstorm Warning	JAN	Clay, Lowndes, Oktibbeha	67 min
Nov 1, 5:12 AM CDT	Severe Thunderstorm Warning	JAN	Noxubee, Winston	63 min
Nov 1, 5:12 AM CDT	Severe Thunderstorm Warning	JAN	Forrest, Lamar	39 min
Nov 1, 5:20 AM CDT	Tornado Warning	JAN	Noxubee, Winston	35 min
Nov 1, 5:27 AM CDT	Flash Flood Warning	JAN	Jones	2 hr
Nov 1, 5:38 AM CDT	Tornado Warning	JAN	Kemper, Lauderdale	67 min
Nov 1, 5:41 AM CDT	Severe Thunderstorm Warning	JAN	Clarke	64 min
Nov 1, 5:46 AM CDT	Tornado Warning	JAN	Lowndes, Oktibbeha	40 min
Nov 1, 5:52 AM CDT	Severe Thunderstorm Warning	JAN	Kemper, Lauderdale	68 min
Nov 1, 6:18 AM CDT	Tornado Warning	JAN	Clarke, Lauderdale	35 min

Nearby

Tornado Warnings in Mississippi, 2018 Every tornado warning in 2018 Tornadoes in 2018

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.