Alert archive / Louisiana / Tornado Warnings in 2018
Tornado Warning 29, NWS Jackson, MS
NWS Jackson, MS issued this tornado warning at Apr 13, 2018, 8:28 PM CDT for Richland Parish, Louisiana. It was in force for 62 min. 2 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 13, 2018, 8:28 PM CDT (01:28 UTC)
- Expired
- Apr 13, 2018, 9:30 PM CDT
- In force
- 62 min
- Issued by
- NWS Jackson, MS
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.75 in
County Richland Parish, LA
The radar
The Ft Polk radar (KPOE), 166 km from the middle of the area, began a volume at 01:29 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 13, 9:00 PM CDT | TORNADO | 4 Wsw Rayville, LA | NWS STORM SURVEY FOUND AN EF0 TORNADO WITH MAXIMUM WINDS OF 75MPH, PATH LENGTH OF 3.28 MILES AND MAX WIDTH OF 400 YARDS. THIS WEAK TORNADO BEGAN ALONG VENABLE ROAD NEAR OLD RIVER ROAD CAUSING MOSTLY MINOR TREE DAMAGE. IT CONTINUED NORTHEAST CROSSING I-20 AT TH |
| Apr 13, 9:04 PM CDT | TSTM WND DMG | 3 Wnw Rayville, LA | A LARGE TREE WAS DOWNED ALONG US 80 IN GIRARD. |
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 13, 7:22 PM CDT | Tornado Watch | SPC | 3 hr |
The nearest sounding before it
Shreveport, LA (KBAD), launched 00:00Z, 1.5 hours before the alert went out and 172 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.
- Mixed-layer CAPE
- 1539 J/kg
- Mixed-layer CIN
- -13 J/kg
- Mixed-layer LCL
- 1018 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 238 m²/s²
- 0-3 km storm-relative helicity
- 235 m²/s²
- Significant tornado parameter
- 1.4
- Supercell composite
- 13.1
The text
As transmitted.
750
WFUS54 KJAN 140128
TORJAN
LAC083-140230-
/O.NEW.KJAN.TO.W.0029.180414T0128Z-180414T0230Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Jackson MS
828 PM CDT FRI APR 13 2018
The National Weather Service in Jackson has issued a
* Tornado Warning for...
Western Richland Parish in northeastern Louisiana...
* Until 930 PM CDT
* At 828 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Buckner, or 11 miles west of Mangham, 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...
Alto around 845 PM CDT.
Archibald around 855 PM CDT.
Rayville around 905 PM CDT.
Holly Ridge around 915 PM CDT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
This Tornado Warning replaces the Severe Thunderstorm Warning issued
for the same area.
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 3235 9201 3251 9190 3254 9189 3252 9186
3252 9184 3254 9184 3257 9181 3245 9158
3220 9197 3220 9198 3219 9201 3221 9199
3223 9199 3223 9201 3225 9199 3228 9200
3228 9203
TIME...MOT...LOC 0128Z 232DEG 27KT 3226 9197
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$
NF1 follow-up statement
193
WWUS54 KJAN 140226 RRA
SVSJAN
Severe Weather Statement
National Weather Service Jackson MS
926 PM CDT FRI APR 13 2018
LAC083-140235-
/O.EXP.KJAN.TO.W.0029.000000T0000Z-180414T0230Z/
Richland LA-
926 PM CDT FRI APR 13 2018
...THE TORNADO WARNING FOR WESTERN RICHLAND PARISH WILL EXPIRE AT 930
PM CDT...
The storm which prompted the warning has moved out of the area.
Therefore the warning will be allowed to expire.
A tornado watch remains in effect until 300 AM CDT for northeastern
Louisiana.
LAT...LON 3235 9201 3251 9190 3254 9189 3252 9186
3252 9184 3254 9184 3257 9181 3245 9158
3220 9197 3220 9198 3219 9201 3221 9199
3223 9199 3223 9201 3225 9199 3228 9200
3228 9203
TIME...MOT...LOC 0225Z 232DEG 27KT 3252 9157
$$
GRGThe office that day
Everything else NWS Jackson, MS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 13, 7:24 PM CDT | Tornado Warning | JAN | Morehouse | 34 min |
| Apr 13, 8:12 PM CDT | Severe Thunderstorm Warning | JAN | Richland | 48 min |
| Apr 13, 8:35 PM CDT | Tornado Warning | JAN | Richland | 55 min |
| Apr 13, 9:04 PM CDT | Tornado Warning | JAN | Morehouse, Richland, West Carroll | 56 min |
| Apr 13, 9:59 PM CDT | Severe Thunderstorm Warning | JAN | East Carroll, Morehouse, West Carroll | 46 min |
| Apr 13, 10:18 PM CDT | Flash Flood Warning | JAN | Morehouse, West Carroll | 3 hr |
| Apr 13, 10:43 PM CDT | Severe Thunderstorm Warning | JAN | East Carroll, West Carroll | 36 min |
| Apr 14, 2:32 AM CDT | Severe Thunderstorm Warning | JAN | Morehouse | 58 min |
| Apr 14, 2:54 AM CDT | Tornado Warning | JAN | Morehouse | 51 min |
| Apr 14, 3:30 AM CDT | Tornado Warning | JAN | East Carroll, West Carroll | 49 min |
| Apr 14, 5:32 AM CDT | Special Weather Statement | JAN | Catahoula | 43 min |
| Apr 14, 5:40 AM CDT | Severe Thunderstorm Warning | JAN | Catahoula, Concordia | 23 min |
Nearby
Tornado Warnings in Louisiana, 2018Every tornado warning in 2018Tornadoes 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.