Alert archive / Wisconsin / Special Weather Statements in 2021
Special Weather Statement, NWS Green Bay, WI
NWS Green Bay, WI issued this special weather statement at Jul 24, 2021, 1:07 AM CDT for Oneida County, Vilas County, Wisconsin. It was in force for 53 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
- Jul 24, 2021, 1:07 AM CDT (06:07 UTC)
- Expired
- Jul 24, 2021, 2:00 AM CDT
- In force
- 53 min
- Issued by
- NWS Green Bay, WI
Counties Oneida County, WI, Vilas County, WI
The radar
The Marquette radar (KMQT), 180 km from the middle of the area, began a volume at 06:09 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, 6.1 hours before the alert went out and 212 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
- 427 J/kg
- Mixed-layer CIN
- -31 J/kg
- Mixed-layer LCL
- 1289 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 84 m²/s²
- 0-3 km storm-relative helicity
- 142 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 2.5
The text
As transmitted.
428
WWUS83 KGRB 240607
SPSGRB
Special Weather Statement
National Weather Service Green Bay WI
107 AM CDT Sat Jul 24 2021
WIZ005-010-240700-
Vilas WI-Oneida WI-
107 AM CDT Sat Jul 24 2021
...THUNDERSTORMS MOVING INTO THE NORTHWOODS...
At 102 AM CDT, Doppler radar was tracking a cluster of thunderstorms
7 miles west of Turtle Flambeau Flowage, moving east at 40 mph.
Heavy rain, pea size hail and winds in excess of 35 mph will be
possible with these storms.
Locations impacted include...
Lac Du Flambeau, Newbold, Boulder Junction, Winchester, Border Lakes
Natural Area, Squirrel Lake, Johnson Lake Barrens Natural Area,
Willow Lake, Rainbow Flowage and Willow Reservoir.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
Persons in campgrounds should consider seeking sturdy shelter until
these storms pass.
&&
LAT...LON 4620 8942 4563 8951 4564 9004 4598 9005
4598 8993 4630 8993
TIME...MOT...LOC 0602Z 271DEG 36KT 4606 9034
$$
BerschThe office that day
Everything else NWS Green Bay, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 24, 3:19 AM CDT | Special Weather Statement | GRB | Forest, Langlade | 41 min |
| Jul 24, 5:38 AM CDT | Special Weather Statement | GRB | Langlade, Lincoln, Marathon, Menominee, Portage, Shawano and 2 more | 37 min |
| Jul 24, 6:00 AM CDT | Special Weather Statement | GRB | Portage, Waupaca | 30 min |
| Jul 24, 6:32 AM CDT | Special Weather Statement | GRB | Menominee, Shawano, Waupaca | 28 min |
| Jul 24, 6:35 AM CDT | Special Weather Statement | GRB | Portage, Wood | 25 min |
| Jul 24, 6:39 AM CDT | Special Weather Statement | GRB | Door | 36 min |
| Jul 24, 7:08 AM CDT | Special Weather Statement | GRB | Door | 52 min |
Nearby
Special Weather Statements in Wisconsin, 2021Every special weather statement in 2021
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.