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 Apr 28, 2021, 12:11 AM CDT for Winnebago County, Wisconsin. It was in force for 34 min. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Apr 28, 2021, 12:11 AM CDT (05:11 UTC)
- Expired
- Apr 28, 2021, 12:45 AM CDT
- In force
- 34 min
- Issued by
- NWS Green Bay, WI
County Winnebago County, WI
The radar
The Green Bay radar (KGRB), 56 km from the middle of the area, began a volume at 05:12 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 28, 12:50 AM CDT | HAIL 0.25 | Appleton, WI |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Green Bay/Straub, WI (KGRB), launched 00:00Z, 5.2 hours before the alert went out and 56 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 826 m above ground
- 0-6 km bulk shear
- 59 kt
- 0-1 km storm-relative helicity
- 242 m²/s²
- 0-3 km storm-relative helicity
- 309 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted.
568
WWUS83 KGRB 280511
SPSGRB
Special Weather Statement
National Weather Service Green Bay WI
1211 AM CDT Wed Apr 28 2021
WIZ037-038-045-048-280545-
Waupaca WI-Outagamie WI-Winnebago WI-Waushara WI-
1211 AM CDT Wed Apr 28 2021
...STRONG STORM ENTERING NORTHERN WINNEBAGO COUNTY...
At 1209 AM CDT, Doppler radar was tracking a strong thunderstorm
near Lake Poygan, or 13 miles north of Berlin, moving east at 40 mph.
Pea size hail, brief heavy rainfall, and winds in excess of 30 mph
will be possible with this storm.
Locations impacted include...
Appleton, Oshkosh, Menasha, Fremont, Lake Poygan, Northern Lake
Winnebago, Central Lake Winnebago, Neenah, Greenville and Omro.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 4404 8900 4429 8902 4432 8839 4424 8839
4424 8840 4405 8840
TIME...MOT...LOC 0510Z 256DEG 38KT 4416 8890
$$
UhlmannThe office that day
Everything else NWS Green Bay, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 27, 7:17 PM CDT | Special Weather Statement | GRB | Langlade, Marathon, Menominee | 43 min |
| Apr 27, 9:02 PM CDT | Special Weather Statement | GRB | Wood | 43 min |
| Apr 27, 10:24 PM CDT | Special Weather Statement | GRB | Portage | 51 min |
| Apr 27, 11:09 PM CDT | Special Weather Statement | GRB | Outagamie, Waupaca | 51 min |
| Apr 27, 11:28 PM CDT | Special Weather Statement | GRB | Waushara | 47 min |
| Apr 27, 11:58 PM CDT | Special Weather Statement | GRB | Brown, Outagamie | 47 min |
| Apr 28, 12:44 AM CDT | Special Weather Statement | GRB | Brown, Outagamie | 46 min |
| Apr 28, 1:10 AM CDT | Special Weather Statement | GRB | Calumet, Winnebago | 50 min |
| Apr 28, 1:13 AM CDT | Special Weather Statement | GRB | Brown | 32 min |
| Apr 28, 1:55 AM CDT | Special Weather Statement | GRB | Manitowoc | 20 min |
| Apr 28, 2:36 AM CDT | Small Craft Advisory | GRB | 10 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.