Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2018
Severe Thunderstorm Warning 39, NWS Green Bay, WI
NWS Green Bay, WI issued this severe thunderstorm warning at Aug 8, 2018, 11:43 PM CDT for Marathon County, Wisconsin. It was in force for 24 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Aug 8, 2018, 11:43 PM CDT (04:43 UTC)
- Expired
- Aug 9, 2018, 12:07 AM CDT
- In force
- 24 min
- Issued by
- NWS Green Bay, WI
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
County Marathon County, WI
The radar
The Green Bay radar (KGRB), 127 km from the middle of the area, began a volume at 04:44 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.
The nearest sounding before it
Green Bay/Straub, WI (KGRB), launched 00:00Z, 4.7 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.
- Mixed-layer CAPE
- 395 J/kg
- Mixed-layer CIN
- -35 J/kg
- Mixed-layer LCL
- 1508 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 83 m²/s²
- 0-3 km storm-relative helicity
- 94 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.9
The text
As transmitted.
194
WUUS53 KGRB 090443
SVRGRB
WIC073-090530-
/O.NEW.KGRB.SV.W.0039.180809T0443Z-180809T0530Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Green Bay WI
1143 PM CDT WED AUG 8 2018
The National Weather Service in Green Bay has issued a
* Severe Thunderstorm Warning for...
Central Marathon County in central Wisconsin...
* Until 1230 AM CDT.
* At 1143 PM CDT, a severe thunderstorm was located 9 miles northwest
of Rib Mountain, or 9 miles west of Wausau, moving southeast at 40
mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage
to roofs, siding, and trees.
* This severe thunderstorm will be near...
Wausau around 1150 PM CDT.
Rib Mountain around 1155 PM CDT.
Weston and Mosinee around 1205 AM CDT.
Bevent around 1225 AM CDT.
Other locations impacted by this severe thunderstorm include Ringle,
Elderon, Pike Lake, Little Chicago, Schofield, Hamburg, Nutterville,
Holt, Hatley and Rib Falls.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Prepare immediately for large hail and damaging winds. People outside
should move immediately to shelter inside a strong building. Stay
away from windows.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4512 8968 4485 8922 4469 8922 4469 8963
4512 9013
TIME...MOT...LOC 0443Z 309DEG 33KT 4501 8981
HAIL...1.00IN
WIND...60MPH
$$
Kurimski2 follow-up statements
504
WWUS53 KGRB 090456
SVSGRB
Severe Weather Statement
National Weather Service Green Bay WI
1156 PM CDT WED AUG 8 2018
WIC073-090530-
/O.CON.KGRB.SV.W.0039.000000T0000Z-180809T0530Z/
Marathon WI-
1156 PM CDT WED AUG 8 2018
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1230 AM CDT
FOR EASTERN MARATHON COUNTY...
At 1156 PM CDT, a severe thunderstorm was located near Rib Mountain,
or near Wausau, moving southeast at 25 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
This severe storm will be near...
Wausau around 1200 AM CDT.
Rib Mountain around 1205 AM CDT.
Weston around 1215 AM CDT.
Mosinee around 1220 AM CDT.
Bevent around 1230 AM CDT.
Other locations impacted by this severe thunderstorm include Ringle,
Elderon, Pike Lake, Little Chicago, Schofield, Nutterville, Holt,
Hatley, Rib Falls and Sunset.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Prepare immediately for large hail and damaging winds. People outside
should move to a shelter, inside a strong building and away from
windows.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4507 8960 4485 8922 4469 8922 4469 8963
4503 9003
TIME...MOT...LOC 0456Z 311DEG 24KT 4497 8975
HAIL...1.00IN
WIND...60MPH
$$
Kurimski436
WWUS53 KGRB 090507
SVSGRB
Severe Weather Statement
National Weather Service Green Bay WI
1207 AM CDT THU AUG 9 2018
WIC073-090516-
/O.CAN.KGRB.SV.W.0039.000000T0000Z-180809T0530Z/
Marathon WI-
1207 AM CDT THU AUG 9 2018
...THE SEVERE THUNDERSTORM WARNING FOR EASTERN MARATHON COUNTY IS
CANCELLED...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning has been cancelled. However small hail, gusty
winds and heavy rain are still possible with this thunderstorm.
LAT...LON 4507 8960 4485 8922 4469 8922 4469 8963
4503 9003
TIME...MOT...LOC 0504Z 309DEG 33KT 4491 8964
$$
KurimskiThe office that day
Everything else NWS Green Bay, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 8, 7:48 PM CDT | Special Weather Statement | GRB | Vilas | 57 min |
| Aug 8, 8:39 PM CDT | Special Weather Statement | GRB | Oneida, Vilas | 81 min |
| Aug 8, 9:57 PM CDT | Special Weather Statement | GRB | Lincoln, Oneida | 63 min |
| Aug 8, 10:58 PM CDT | Special Weather Statement | GRB | Langlade, Marathon, Marinette, Menominee | 62 min |
| Aug 9, 12:56 AM CDT | Special Marine Warning | GRB | 94 min |
Nearby
Severe Thunderstorm Warnings in Wisconsin, 2018Every severe thunderstorm warning 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.