Alert archive / Mississippi / Tornado Warnings in 2018

Tornado Warning 41, NWS Memphis, TN

November 1, 2018Chickasaw County, Pontotoc County, Mississippi

NWS Memphis, TN issued this tornado warning at Nov 1, 2018, 4:55 AM CDT for Chickasaw County, Pontotoc County, Mississippi. It was in force for 7 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, 4:55 AM CDT (09:55 UTC)
Expired: Nov 1, 2018, 5:02 AM CDT
In force: 7 min
Issued by: NWS Memphis, TN
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

Counties Chickasaw County, MS, Pontotoc County, MS

The radar

The Columbus AFB radar (KGWX), 56 km from the middle of the area, began a volume at 09:57 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, 4:58 AM CDT	TSTM WND DMG	7 Nw Okolona, MS	ACCORDING TO CHICKASAW COUNTY OFFICILAS TREES WERE REPORTED DOWN ON NATCHEZ TRACE PARKWAY. REPORT RELAYED THROUGH SOCIAL MEDIA.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Little Rock, AR (KBYH), launched 00:00Z, 9.9 hours before the alert went out and 128 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: 381 J/kg
Mixed-layer CIN: -22 J/kg
Mixed-layer LCL: 535 m above ground
0-6 km bulk shear: 58 kt
0-1 km storm-relative helicity: 220 m²/s²
0-3 km storm-relative helicity: 262 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.8

Open this sounding in Storm Lab

The text

As transmitted.

878 
WFUS54 KMEG 010955
TORMEG
MSC017-115-011015-
/O.NEW.KMEG.TO.W.0041.181101T0955Z-181101T1015Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Memphis TN
455 AM CDT THU NOV 1 2018

The National Weather Service in Memphis has issued a

* Tornado Warning for...
  Northeastern Chickasaw County in northeastern Mississippi...
  Southeastern Pontotoc County in northeastern Mississippi...

* Until 515 AM CDT.

* At 454 AM CDT, doppler radar indicated severe thunderstorms
  producing both tornadoes and extensive straight line wind damage
  were located near Houlka, or 9 miles northwest of Okolona, 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 tornadic thunderstorm will remain over mainly rural areas of
  northeastern Chickasaw and southeastern Pontotoc Counties.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a storm shelter 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.

Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!

&&

LAT...LON 3410 8894 3415 8882 3403 8882 3401 8895
TIME...MOT...LOC 0954Z 214DEG 30KT 3406 8890 

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

$$

1 follow-up statement

667 
WWUS54 KMEG 011002
SVSMEG

Severe Weather Statement
National Weather Service Memphis TN
502 AM CDT THU NOV 1 2018

MSC017-115-011012-
/O.CAN.KMEG.TO.W.0041.000000T0000Z-181101T1015Z/
Chickasaw MS-Pontotoc MS-
502 AM CDT THU NOV 1 2018

...THE TORNADO WARNING FOR NORTHEASTERN CHICKASAW AND SOUTHEASTERN
PONTOTOC COUNTIES IS CANCELLED...
        
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning has
been cancelled.

LAT...LON 3410 8894 3415 8882 3403 8882 3401 8895
TIME...MOT...LOC 1001Z 214DEG 30KT 3412 8885 

$$

The office that day

Everything else NWS Memphis, TN issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Nov 1, 3:05 AM CDT	Special Weather Statement	MEG	Tallahatchie, Yalobusha	40 min
Nov 1, 3:16 AM CDT	Special Weather Statement	MEG	Lafayette, Marshall	44 min
Nov 1, 3:42 AM CDT	Special Weather Statement	MEG	Calhoun, Yalobusha	48 min
Nov 1, 3:57 AM CDT	Special Weather Statement	MEG	Benton, Lafayette, Pontotoc, Tippah, Union	48 min
Nov 1, 4:24 AM CDT	Special Weather Statement	MEG	Calhoun, Chickasaw	51 min
Nov 1, 4:43 AM CDT	Special Weather Statement	MEG	Alcorn, Lee, Pontotoc, Prentiss, Tippah, Union	47 min
Nov 1, 4:50 AM CDT	Severe Thunderstorm Warning	MEG	Chickasaw, Lee, Pontotoc	25 min
Nov 1, 5:17 AM CDT	Special Weather Statement	MEG	Itawamba, Monroe	43 min
Nov 1, 5:27 AM CDT	Special Weather Statement	MEG	Prentiss, Tishomingo	48 min
Nov 1, 5:50 AM CDT	Severe Thunderstorm Warning	MEG	Itawamba, Prentiss, Tishomingo	25 min
Nov 1, 5:53 AM CDT	Special Weather Statement	MEG	Monroe	22 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.