Alert archive / Wisconsin / Tornado Warnings in 2018
Tornado Warning 10, NWS La Crosse, WI
NWS La Crosse, WI issued this tornado warning at Sep 4, 2018, 7:51 PM CDT for Clark County, Wisconsin. It was in force for 39 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
- Sep 4, 2018, 7:51 PM CDT (00:51 UTC)
- Expired
- Sep 4, 2018, 8:30 PM CDT
- In force
- 39 min
- Issued by
- NWS La Crosse, WI
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.75 in
County Clark County, WI
The radar
The La Crosse radar (KARX), 108 km from the middle of the area, began a volume at 00:51 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 |
|---|---|---|---|
| Sep 4, 8:20 PM CDT | TSTM WND DMG | 2 Nw Greenwood, WI | TREES DOWN IN TOWNSHIP |
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 |
|---|---|---|---|
| Sep 4, 3:35 PM CDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Green Bay/Straub, WI (KGRB), launched 00:00Z, 0.9 hours before the alert went out and 210 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
- 1725 J/kg
- Mixed-layer CIN
- -10 J/kg
- Mixed-layer LCL
- 1098 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 67 m²/s²
- 0-3 km storm-relative helicity
- 121 m²/s²
- Significant tornado parameter
- 0.5
- Supercell composite
- 4.0
The text
As transmitted.
131
WFUS53 KARX 050051
TORARX
WIC019-050130-
/O.NEW.KARX.TO.W.0010.180905T0051Z-180905T0130Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service La Crosse WI
751 PM CDT TUE SEP 4 2018
The National Weather Service in La Crosse has issued a
* Tornado Warning for...
Northwestern Clark County in central Wisconsin...
* Until 830 PM CDT.
* At 751 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Fairchild, or 15 miles northwest of Neillsville,
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...
Greenwood and Loyal around 820 PM CDT.
Other locations impacted by this tornadic thunderstorm include
Willard, Mead Lake, Highway 73 And 98, Sterling Avenue And Starks
Road and Tioga.
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 4475 9046 4461 9088 4463 9092 4476 9092
4492 9075
TIME...MOT...LOC 0051Z 222DEG 26KT 4467 9087
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$
JAM3 follow-up statements
667
WWUS53 KARX 050107
SVSARX
Severe Weather Statement
National Weather Service La Crosse WI
807 PM CDT TUE SEP 4 2018
WIC019-050130-
/O.CON.KARX.TO.W.0010.000000T0000Z-180905T0130Z/
Clark WI-
807 PM CDT TUE SEP 4 2018
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 830 PM CDT FOR CENTRAL
CLARK COUNTY...
At 807 PM CDT, a severe thunderstorm capable of producing a tornado
was located 7 miles west of Greenwood, or 13 miles northwest of
Neillsville, moving northeast at 25 mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
This dangerous storm will be near...
Greenwood around 825 PM CDT.
Loyal around 830 PM CDT.
Other locations impacted by this tornadic thunderstorm include
Willard, Mead Lake, Highway 73 And 98, Sterling Avenue And Starks
Road and Tioga.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 4475 9046 4466 9073 4468 9080 4473 9087
4489 9070
TIME...MOT...LOC 0107Z 235DEG 23KT 4473 9074
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$
JAM577
WWUS53 KARX 050122
SVSARX
Severe Weather Statement
National Weather Service La Crosse WI
822 PM CDT TUE SEP 4 2018
WIC019-050130-
/O.CON.KARX.TO.W.0010.000000T0000Z-180905T0130Z/
Clark WI-
822 PM CDT TUE SEP 4 2018
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 830 PM CDT FOR CENTRAL
CLARK COUNTY...
At 821 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Greenwood, or 15 miles north of Neillsville, 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 tornadic thunderstorm will remain over mainly rural areas of
central Clark County, including the following locations... Highway 73
And 98.
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 4476 9048 4471 9061 4475 9069 4479 9072
4486 9065
TIME...MOT...LOC 0121Z 231DEG 26KT 4479 9061
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$
JAM588
WWUS53 KARX 050132
SVSARX
Severe Weather Statement
National Weather Service La Crosse WI
832 PM CDT TUE SEP 4 2018
WIC019-050136-
/O.EXP.KARX.TO.W.0010.000000T0000Z-180905T0130Z/
Clark WI-
832 PM CDT TUE SEP 4 2018
...THE TORNADO WARNING FOR CENTRAL CLARK COUNTY WILL EXPIRE AT 830 PM
CDT...
The storm which prompted the warning has moved out of the area.
Therefore the warning will be allowed to expire.
A Tornado Watch remains in effect until 1000 PM CDT for central
Wisconsin.
LAT...LON 4476 9048 4471 9061 4475 9069 4479 9072
4486 9065
TIME...MOT...LOC 0126Z 222DEG 26KT 4481 9059
$$
JAMThe office that day
Everything else NWS La Crosse, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 4, 8:19 PM CDT | Flash Flood Warning | ARX | Buffalo, Trempealeau | 3 hr |
| Sep 4, 9:04 PM CDT | Special Weather Statement | ARX | Crawford, La Crosse, Monroe, Vernon | 86 min |
| Sep 4, 9:21 PM CDT | Special Weather Statement | ARX | Clark | 54 min |
| Sep 4, 9:44 PM CDT | Flash Flood Warning | ARX | Clark | 5 hr |
| Sep 4, 10:17 PM CDT | Special Weather Statement | ARX | Jackson, La Crosse, Monroe, Vernon | 58 min |
| Sep 4, 11:03 PM CDT | Flash Flood Warning | ARX | Crawford, Juneau, Monroe, Richland, Vernon | 5 hr |
| Sep 4, 11:06 PM CDT | Special Weather Statement | ARX | Adams, Juneau | 84 min |
| Sep 4, 11:09 PM CDT | Areal Flood Warning | ARX | Buffalo, Jackson, Trempealeau | 4 hr |
| Sep 5, 2:49 AM CDT | Areal Flood Warning | ARX | Clark, Jackson | 5 hr |
| Sep 5, 4:08 AM CDT | Areal Flood Warning | ARX | Crawford, Juneau, Monroe, Richland, Vernon | 6 hr |
| Sep 5, 6:41 AM CDT | River Flood Warning | ARX | Monroe, Vernon | 24 hr |
Nearby
Tornado Warnings in Wisconsin, 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.