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, 2:55 AM CDT for Langlade County, Wisconsin. It was in force for 50 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, 2:55 AM CDT (07:55 UTC)
- Expired
- Aug 9, 2021, 3:45 AM CDT
- In force
- 50 min
- Issued by
- NWS Green Bay, WI
- Hail
- 0.00 in
- Wind
- 40
County Langlade County, WI
The radar
The Green Bay radar (KGRB), 102 km from the middle of the area, began a volume at 07:57 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, 7.9 hours before the alert went out and 104 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.
090
WWUS83 KGRB 090755
SPSGRB
Special Weather Statement
National Weather Service Green Bay WI
255 AM CDT Mon Aug 9 2021
WIZ019-020-031-090845-
Shawano WI-Langlade WI-Menominee WI-
255 AM CDT Mon Aug 9 2021
...A strong thunderstorm will impact portions of northwestern
Menominee, eastern Langlade and western Shawano Counties through 345
AM CDT...
At 255 AM CDT, Doppler radar was tracking a strong thunderstorm 10
miles north of Wittenberg, or 10 miles south of Antigo, moving
northeast at 35 mph.
HAZARD...Winds in excess of 40 mph.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
This strong thunderstorm will be near...
Antigo around 310 AM CDT.
White Lake around 335 AM CDT.
Other locations impacted by this storm include Bryant, Aniwa, Lake
Noseum, Elmhurst, Mattoon, Polar, Phlox, Lawrence Lake Natural Area,
Upper Bass Lake and Langlade.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.
&&
LAT...LON 4540 8893 4538 8892 4538 8889 4526 8868
4521 8868 4520 8867 4486 8913 4491 8923
4508 8922
TIME...MOT...LOC 0755Z 216DEG 29KT 4498 8916
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 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, 1:39 AM CDT | Special Weather Statement | GRB | Menominee, Shawano | 51 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.