Alert archive / Wisconsin / Tornado Warnings in 2026
Tornado Warning 3, NWS Green Bay, WI
NWS Green Bay, WI issued this tornado warning at Apr 17, 2026, 4:44 PM CDT for Marathon County, Wisconsin. It was in force for 32 min. 4 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 17, 2026, 4:44 PM CDT (21:44 UTC)
- Expired
- Apr 17, 2026, 5:16 PM CDT
- In force
- 32 min
- Issued by
- NWS Green Bay, WI
- Area
- Storm-based polygon
- Tornado
- Observed
- Hail
- 0.0 in
County Marathon County, WI
The radar
The Green Bay radar (KGRB), 115 km from the middle of the area, began a volume at 21:43 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 17, 4:46 PM CDT | TORNADO | 3 Wsw Ringle, WI | Corrects previous tornado report from 3 WSW Ringle. Ringle Tornado. The tornado developed about 3 miles west-southwest of Ringle, near County Road J and Weston Avenue, at about 4:46 pm. The tornado moved northeast, crossing highway 29 and downing hundreds of t |
| Apr 17, 4:46 PM CDT | TORNADO | 3 Wsw Ringle, WI | Ringle Tornado. The tornado developed about 3 miles west-southwest of Ringle, near County Road J and Weston Avenue, at about 4:46 pm. The tornado moved northeast, crossing highway 29 and downing hundreds of trees. It then moved through neighborhoods along and |
| Apr 17, 4:51 PM CDT | TORNADO | 1 Se Weston, WI | Damage to houses. |
| Apr 17, 5:05 PM CDT | TORNADO | 1 Ssw Ringle, WI | Caller said tornado on ground going north east. |
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 17, 9:23 AM CDT | Severe Thunderstorm Watch | SPC | 11 hr |
| Apr 17, 12:40 PM CDT | Tornado Watch | SPC | 9 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 12:00Z, 9.7 hours before the alert went out and 328 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
- 1 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2301 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 188 m²/s²
- 0-3 km storm-relative helicity
- 229 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
527
WFUS53 KGRB 172144
TORGRB
WIC073-172230-
/O.NEW.KGRB.TO.W.0003.260417T2144Z-260417T2230Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Green Bay WI
444 PM CDT Fri Apr 17 2026
The National Weather Service in Green Bay has issued a
* Tornado Warning for...
Northeastern Marathon County in central Wisconsin...
* Until 530 PM CDT.
* At 444 PM CDT, a confirmed tornado was located over Weston, or 7
miles southeast of Wausau, moving northeast at 40 mph.
HAZARD...Damaging tornado.
SOURCE...Emergency management 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...
Weston, Wausau and Rib Mountain around 445 PM CDT.
Other locations impacted by the tornado include Camp Phillips Scout
Camp, Rothschild, Schofield, Evergreen, Ringle, Sunset, Nutterville,
Glandon and Hogarty.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Move to an interior room on the lowest floor of a well-built building
away from 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 4480 8954 4488 8965 4512 8941 4512 8923
4500 8923 4485 8944
TIME...MOT...LOC 2144Z 221DEG 33KT 4488 8954
TORNADO...OBSERVED
MAX HAIL SIZE...0.00 IN
$$
Kurimski3 follow-up statements
275
WWUS53 KGRB 172155
SVSGRB
Severe Weather Statement
National Weather Service Green Bay WI
455 PM CDT Fri Apr 17 2026
WIC073-172230-
/O.CON.KGRB.TO.W.0003.000000T0000Z-260417T2230Z/
Marathon WI-
455 PM CDT Fri Apr 17 2026
...TORNADO WARNING REMAINS IN EFFECT UNTIL 530 PM CDT FOR
NORTHEASTERN MARATHON COUNTY...
At 455 PM CDT, a confirmed and extremely dangerous tornado was
located 6 miles northeast of Weston, or 10 miles east of Wausau,
moving northeast at 35 mph.
This is a PARTICULARLY DANGEROUS SITUATION. TAKE COVER NOW!
HAZARD...Damaging tornado.
SOURCE...Law enforcement confirmed tornado.
IMPACT...You are in a life-threatening situation. Flying debris may
be deadly to those caught without shelter. Mobile homes will
be destroyed. Considerable damage to homes, businesses, and
vehicles is likely and complete destruction is possible.
This tornado will be near...
Weston around 500 PM CDT.
Other locations impacted by the tornado include Sunset, Ringle,
Nutterville, Hogarty and Glandon.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A large and extremely dangerous tornado has been confirmed. Move to
an interior room on the lowest floor of a well-built building. If in
a mobile home, vehicle, or outdoors, move to the closest structure
and protect yourself from flying debris.
Move to an interior room on the lowest floor of a well-built building
away from windows. If you are outdoors, in a mobile home, or in a
vehicle, move to the closest substantial shelter and protect yourself
from flying debris.
&&
LAT...LON 4485 8944 4493 8960 4512 8941 4512 8923
4500 8923
TIME...MOT...LOC 2144Z 225DEG 30KT 4487 8954
TORNADO...OBSERVED
TORNADO DAMAGE THREAT...CONSIDERABLE
MAX HAIL SIZE...0.00 IN
$$
Kurimski272
WWUS53 KGRB 172208
SVSGRB
Severe Weather Statement
National Weather Service Green Bay WI
508 PM CDT Fri Apr 17 2026
WIC073-172230-
/O.CON.KGRB.TO.W.0003.000000T0000Z-260417T2230Z/
Marathon WI-
508 PM CDT Fri Apr 17 2026
...TORNADO WARNING REMAINS IN EFFECT UNTIL 530 PM CDT FOR
NORTHEASTERN MARATHON COUNTY...
At 508 PM CDT, a confirmed tornado was located 11 miles northeast of
Weston, or 14 miles east of Wausau, moving northeast at 30 mph.
HAZARD...Damaging tornado.
SOURCE...Law enforcement 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.
Other locations impacted by the tornado include Hogarty and Glandon.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Move to an interior room on the lowest floor of a well-built building
away from 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 4492 8934 4506 8947 4512 8941 4512 8923
4500 8923
TIME...MOT...LOC 2155Z 228DEG 25KT 4492 8946
TORNADO...OBSERVED
MAX HAIL SIZE...0.00 IN
$$
Kurimski842
WWUS53 KGRB 172216
SVSGRB
Severe Weather Statement
National Weather Service Green Bay WI
516 PM CDT Fri Apr 17 2026
WIC073-172226-
/O.CAN.KGRB.TO.W.0003.000000T0000Z-260417T2230Z/
Marathon WI-
516 PM CDT Fri Apr 17 2026
...TORNADO WARNING IS CANCELLED FOR NORTHEASTERN MARATHON COUNTY...
The storm which prompted the warning has moved out of the area.
Therefore, the warning has been cancelled.
A Tornado Watch remains in effect until 800 PM CDT for a portion of
central Wisconsin.
&&
LAT...LON 4492 8934 4506 8947 4512 8941 4512 8923
4500 8923
TIME...MOT...LOC 2208Z 228DEG 25KT 4498 8936
$$
KurimskiThe office that day
Everything else NWS Green Bay, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 16, 8:36 PM CDT | Dense Fog Advisory | GRB | Brown, Calumet, Door, Forest, Kewaunee, Langlade and 9 more | 12 hr |
| Apr 16, 8:37 PM CDT | Marine Dense Fog Advisory | GRB | 31 hr | |
| Apr 17, 2:56 AM CDT | Small Craft Advisory | GRB | 31 hr | |
| Apr 17, 2:53 PM CDT | Severe Thunderstorm Warning | GRB | Marathon, Wood | 82 min |
| Apr 17, 3:00 PM CDT | Tornado Warning | GRB | Wood | 60 min |
| Apr 17, 3:27 PM CDT | Severe Thunderstorm Warning | GRB | Wood | 48 min |
| Apr 17, 3:40 PM CDT | Special Weather Statement | GRB | Lincoln | 65 min |
| Apr 17, 3:52 PM CDT | Severe Thunderstorm Warning | GRB | Marathon, Portage, Wood | 53 min |
| Apr 17, 4:10 PM CDT | Flash Flood Warning | GRB | Marathon, Wood | 5 hr |
| Apr 17, 4:11 PM CDT | Special Weather Statement | GRB | Winnebago | 34 min |
| Apr 17, 4:19 PM CDT | Severe Thunderstorm Warning | GRB | Oneida | 24 min |
| Apr 17, 4:21 PM CDT | Tornado Warning | GRB | Marathon | 39 min |
| Apr 17, 4:36 PM CDT | Severe Thunderstorm Warning | GRB | Lincoln | 39 min |
| Apr 17, 4:48 PM CDT | Tornado Warning | GRB | Lincoln | 21 min |
| Apr 17, 4:50 PM CDT | Severe Thunderstorm Warning | GRB | Langlade, Lincoln | 30 min |
| Apr 17, 4:52 PM CDT | Tornado Warning | GRB | Langlade, Lincoln | 30 min |
| Apr 17, 5:00 PM CDT | Severe Thunderstorm Warning | GRB | Lincoln, Oneida | 45 min |
| Apr 17, 5:06 PM CDT | Tornado Warning | GRB | Langlade, Marathon, Shawano | 39 min |
| Apr 17, 5:14 PM CDT | Tornado Warning | GRB | Wood | 61 min |
| Apr 17, 5:19 PM CDT | Severe Thunderstorm Warning | GRB | Forest, Langlade, Oneida | 18 min |
| Apr 17, 5:24 PM CDT | Special Weather Statement | GRB | Vilas | 36 min |
| Apr 17, 5:27 PM CDT | Severe Thunderstorm Warning | GRB | Langlade, Marathon, Menominee, Portage, Shawano, Waupaca | 37 min |
| Apr 17, 5:28 PM CDT | Tornado Warning | GRB | Vilas | 17 min |
| Apr 17, 5:30 PM CDT | Tornado Warning | GRB | Langlade, Menominee | 45 min |
| Apr 17, 5:48 PM CDT | Tornado Warning | GRB | Shawano | 9 min |
| Apr 17, 5:58 PM CDT | Severe Thunderstorm Warning | GRB | Vilas | 32 min |
| Apr 17, 6:06 PM CDT | Tornado Warning | GRB | Langlade, Oconto | 28 min |
| Apr 17, 6:26 PM CDT | Special Weather Statement | GRB | Marathon, Portage, Wood | 64 min |
| Apr 17, 6:43 PM CDT | Special Weather Statement | GRB | Oneida | 32 min |
| Apr 17, 6:52 PM CDT | Flash Flood Warning | GRB | Langlade, Marathon, Menominee, Shawano | 2 hr |
| Apr 17, 6:58 PM CDT | Severe Thunderstorm Warning | GRB | Oneida, Vilas | 32 min |
Nearby
Tornado Warnings in Wisconsin, 2026Every tornado warning in 2026Tornadoes in 2026
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.