Alert archive / Wisconsin / Special Weather Statements in 2021

Special Weather Statement, NWS Green Bay, WI

August 7, 2021Portage County, Wood County, Wisconsin

NWS Green Bay, WI issued this special weather statement at Aug 7, 2021, 7:21 PM CDT for Portage County, Wood County, Wisconsin. It was in force for 39 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 7, 2021, 7:21 PM CDT (00:21 UTC)
Expired: Aug 7, 2021, 8:00 PM CDT
In force: 39 min
Issued by: NWS Green Bay, WI
Hail: 0.00 in
Wind: 30

Counties Portage County, WI, Wood County, WI

The radar

The La Crosse radar (KARX), 124 km from the middle of the area, began a volume at 00:24 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, 0.4 hours before the alert went out and 147 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 22 J/kg
Mixed-layer CIN: -122 J/kg
Mixed-layer LCL: 1055 m above ground
0-6 km bulk shear: 22 kt
0-1 km storm-relative helicity: 106 m²/s²
0-3 km storm-relative helicity: 275 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

008 
WWUS83 KGRB 080021
SPSGRB

Special Weather Statement
National Weather Service Green Bay WI
721 PM CDT Sat Aug 7 2021
 
WIZ035-036-080100-
Wood WI-Portage WI-
721 PM CDT Sat Aug 7 2021

...Strong thunderstorms will impact portions of Wood and Portage
Counties through 800 PM CDT...

At 719 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from 9 miles southwest of Mosinee to near Pittsville
to 8 miles southeast of Shortville. Movement was southeast at 20 mph.

HAZARD...Winds in excess of 30 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around 
         unsecured objects. Heavy rain could lead to localized 
         flooding.

Strong thunderstorms will be near...
  Wisconsin Rapids around 750 PM CDT.
  Stevens Point, Whiting, Lake Wazeecha and Babcock around 800 PM 
  CDT.

Other locations impacted by these storms include Milladore, Sandhill
Wildlife Area, North Wood County Park, Park Ridge, Auburndale,
Coddington, North Star, Hewitt, Blenker and Kellner.

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 4454 9032 4457 9019 4469 9005 4468 8923
      4424 8923 4425 9032
TIME...MOT...LOC 0019Z 298DEG 17KT 4466 8979 4448 9004 4439 9044 

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...30 MPH

$$

Bersch

The office that day

Everything else NWS Green Bay, WI issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 7, 7:46 PM CDT	Areal Flood Advisory	GRB	Waushara	3 hr
Aug 7, 8:00 PM CDT	Special Weather Statement	GRB	Portage, Waupaca, Waushara	60 min
Aug 7, 8:13 PM CDT	Areal Flood Advisory	GRB	Portage, Waupaca, Waushara, Wood	3 hr
Aug 7, 8:59 PM CDT	Special Weather Statement	GRB	Waushara, Winnebago	61 min
Aug 7, 9:51 PM CDT	Special Weather Statement	GRB	Calumet, Winnebago	24 min
Aug 7, 10:15 PM CDT	Special Weather Statement	GRB	Calumet	30 min
Aug 7, 10:43 PM CDT	Special Weather Statement	GRB	Calumet	47 min
Aug 8, 1:33 AM CDT	Special Weather Statement	GRB	Shawano	42 min
Aug 8, 2:36 AM CDT	Areal Flood Advisory	GRB	Brown, Door, Kewaunee, Oconto, Outagamie, Shawano	114 min
Aug 8, 3:43 AM CDT	Areal Flood Advisory	GRB	Brown, Calumet, Manitowoc, Outagamie, Waupaca, Winnebago	2 hr
Aug 8, 4:35 AM CDT	Areal Flood Advisory	GRB	Brown, Door, Kewaunee, Manitowoc, Oconto, Outagamie and 1 more	3 hr
Aug 8, 5:03 AM CDT	Areal Flood Advisory	GRB	Calumet, Manitowoc, Portage, Waupaca, Waushara, Winnebago and 1 more	117 min
Aug 8, 5:23 AM CDT	Special Weather Statement	GRB	Wood	52 min
Aug 8, 5:37 AM CDT	Special Weather Statement	GRB	Marathon, Portage, Wood	38 min
Aug 8, 5:56 AM CDT	Areal Flood Advisory	GRB	Brown, Calumet, Kewaunee, Manitowoc, Outagamie, Waupaca and 1 more	2 hr
Aug 8, 10:38 AM CDT	Small Craft Advisory	GRB		11 hr
Aug 8, 3:13 PM CDT	Special Weather Statement	GRB	Waushara, Wood	77 min
Aug 8, 3:54 PM CDT	Severe Thunderstorm Warning	GRB	Waushara	51 min
Aug 8, 4:16 PM CDT	Severe Thunderstorm Warning	GRB	Waushara, Winnebago	29 min
Aug 8, 4:30 PM CDT	Special Weather Statement	GRB	Calumet, Winnebago	30 min
Aug 8, 4:30 PM CDT	Severe Thunderstorm Warning	GRB	Outagamie, Portage, Shawano, Waupaca, Waushara, Winnebago	60 min
Aug 8, 4:46 PM CDT	Severe Thunderstorm Warning	GRB	Waushara, Winnebago	29 min
Aug 8, 5:10 PM CDT	Special Weather Statement	GRB	Brown	35 min
Aug 8, 5:27 PM CDT	Special Weather Statement	GRB	Brown, Outagamie	48 min
Aug 8, 5:41 PM CDT	Special Weather Statement	GRB	Calumet, Manitowoc	49 min
Aug 8, 6:19 PM CDT	Special Marine Warning	GRB		56 min
Aug 8, 6:22 PM CDT	Special Marine Warning	GRB		66 min
Aug 8, 6:31 PM CDT	Areal Flood Advisory	GRB	Brown, Kewaunee	62 min
Aug 8, 6:31 PM CDT	Special Weather Statement	GRB	Kewaunee, Manitowoc	44 min
Aug 8, 6:46 PM CDT	Severe Thunderstorm Warning	GRB	Brown, Door, Kewaunee	29 min

Nearby

Special Weather Statements in Wisconsin, 2021 Every 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.