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 Aug 9, 2021, 1:39 AM CDT for Menominee County, Shawano County, Wisconsin. It was in force for 51 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 9, 2021, 1:39 AM CDT (06:39 UTC)
- Expired
- Aug 9, 2021, 2:30 AM CDT
- In force
- 51 min
- Issued by
- NWS Green Bay, WI
- Hail
- 0.00 in
- Wind
- 30
Counties Menominee County, WI, Shawano County, WI
The radar
The Green Bay radar (KGRB), 103 km from the middle of the area, began a volume at 06:39 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, 6.7 hours before the alert went out and 105 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
- 112 J/kg
- Mixed-layer CIN
- -68 J/kg
- Mixed-layer LCL
- 1106 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 36 m²/s²
- 0-3 km storm-relative helicity
- 16 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted.
610
WWUS83 KGRB 090639
SPSGRB
Special Weather Statement
National Weather Service Green Bay WI
139 AM CDT Mon Aug 9 2021
WIZ018>020-030-031-037-090730-
Waupaca WI-Shawano WI-Langlade WI-Marathon WI-Menominee WI-
Lincoln WI-
139 AM CDT Mon Aug 9 2021
...Strong thunderstorms will impact portions of southeastern Lincoln,
Marathon, Menominee, northwestern Waupaca, southern Langlade and
Shawano Counties through 230 AM CDT...
At 138 AM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Colby to near Weston to 13 miles west of
Clintonville. Movement was northeast at 35 mph.
HAZARD...Winds in excess of 30 mph.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
Strong thunderstorms will be near...
Weston around 145 AM CDT.
Other locations in the path of these storms include Antigo, Shawano,
Merrill, Council Grounds State Park, Keshena and Legend Lake.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
Torrential rainfall is also occurring with these storms and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.
&&
LAT...LON 4493 9031 4518 8989 4523 8890 4491 8849
4486 8849 4485 8842 4481 8836 4454 8907
4491 8954 4487 9032
TIME...MOT...LOC 0638Z 234DEG 28KT 4490 9028 4494 8949 4459 8902
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...30 MPH
$$
RDMThe office that day
Everything else NWS Green Bay, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 8, 7:06 PM CDT | Special Marine Warning | GRB | 54 min | |
| Aug 8, 7:15 PM CDT | Special Weather Statement | GRB | Door | 45 min |
| Aug 9, 2:55 AM CDT | Special Weather Statement | GRB | Langlade | 50 min |
| Aug 9, 8:06 AM CDT | Special Weather Statement | GRB | Winnebago | 39 min |
| Aug 9, 10:02 AM CDT | River Flood Warning | GRB | Wood | 11 hr |
| Aug 9, 1:17 PM CDT | River Flood Warning | GRB | Wood | 40 hr |
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.