Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 32, NWS Green Bay, WI
NWS Green Bay, WI issued this severe thunderstorm warning at Jun 19, 2021, 6:18 AM CDT for Manitowoc County, Wisconsin. It was in force for 27 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
- Jun 19, 2021, 6:18 AM CDT (11:18 UTC)
- Expired
- Jun 19, 2021, 6:45 AM CDT
- In force
- 27 min
- Issued by
- NWS Green Bay, WI
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 50.0 mph
County Manitowoc County, WI
The radar
The Green Bay radar (KGRB), 51 km from the middle of the area, began a volume at 11:22 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 |
|---|---|---|---|
| Jun 19, 6:40 AM CDT | HAIL 0.5 | Manitowoc, WI | REPORT RELAYED VIA MANITOWOC COUNTY DISPATCH. |
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, 11.3 hours before the alert went out and 49 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
- 3104 m above ground
- 0-6 km bulk shear
- 69 kt
- 0-1 km storm-relative helicity
- 61 m²/s²
- 0-3 km storm-relative helicity
- 105 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
626 WUUS53 KGRB 191118 SVRGRB WIC071-191145- /O.NEW.KGRB.SV.W.0032.210619T1118Z-210619T1145Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Green Bay WI 618 AM CDT Sat Jun 19 2021 The National Weather Service in Green Bay has issued a * Severe Thunderstorm Warning for... Manitowoc County in east central Wisconsin... * Until 645 AM CDT. * At 618 AM CDT, a severe thunderstorm was located near Chilton, or 17 miles west of Manitowoc, moving east at 55 mph. HAZARD...Quarter size hail. SOURCE...Radar indicated. IMPACT...Damage to vehicles is expected. * This severe thunderstorm will be near... St. Nazianz around 625 AM CDT. Valders around 630 AM CDT. Manitowoc around 635 AM CDT. Other locations in the path of this severe thunderstorm include Cleveland. PRECAUTIONARY/PREPAREDNESS ACTIONS... Prepare immediately for large hail and deadly cloud to ground lightning. Seek shelter inside a well-built structure. Stay away from windows. Torrential rainfall is occurring with this storm, and may lead to flash flooding. Do not drive your vehicle through flooded roadways. && LAT...LON 4399 8804 4424 8804 4424 8751 4392 8772 TIME...MOT...LOC 1118Z 278DEG 48KT 4408 8804 HAIL...1.00IN WIND...<50MPH $$ Kallas
2 follow-up statements
172 WWUS53 KGRB 191132 SVSGRB Severe Weather Statement National Weather Service Green Bay WI 632 AM CDT Sat Jun 19 2021 WIC071-191145- /O.CON.KGRB.SV.W.0032.000000T0000Z-210619T1145Z/ Manitowoc WI- 632 AM CDT Sat Jun 19 2021 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 AM CDT FOR CENTRAL MANITOWOC COUNTY... At 631 AM CDT, a severe thunderstorm was located near Valders, or near Manitowoc, moving east at 55 mph. HAZARD...Quarter size hail. SOURCE...Radar indicated. IMPACT...Damage to vehicles is expected. This severe storm will be near... Manitowoc and Cleveland around 635 AM CDT. PRECAUTIONARY/PREPAREDNESS ACTIONS... Prepare immediately for large hail and deadly cloud to ground lightning. Seek shelter inside a well-built structure. Stay away from windows. Torrential rainfall is occurring with this storm, and may lead to flash flooding. Do not drive your vehicle through flooded roadways. && LAT...LON 4397 8793 4424 8794 4424 8751 4392 8772 TIME...MOT...LOC 1131Z 278DEG 48KT 4405 8779 HAIL...1.00IN WIND...<50MPH $$ Kallas
731
WWUS53 KGRB 191144
SVSGRB
Severe Weather Statement
National Weather Service Green Bay WI
644 AM CDT Sat Jun 19 2021
WIC071-191151-
/O.EXP.KGRB.SV.W.0032.000000T0000Z-210619T1145Z/
Manitowoc WI-
644 AM CDT Sat Jun 19 2021
...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL MANITOWOC COUNTY WILL
EXPIRE AT 645 AM CDT...
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning will
be allowed to expire. However, other thunderstorms are expected to
move through Manitowoc County through 8:00 AM and may contain small
hail.
LAT...LON 4397 8793 4424 8794 4424 8751 4392 8772
TIME...MOT...LOC 1141Z 278DEG 48KT 4403 8761
$$
KallasThe office that day
Everything else NWS Green Bay, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 19, 4:31 AM CDT | Special Weather Statement | GRB | Outagamie | 44 min |
| Jun 19, 4:43 AM CDT | Special Weather Statement | GRB | Shawano | 62 min |
| Jun 19, 5:33 AM CDT | Special Weather Statement | GRB | Calumet, Winnebago | 57 min |
| Jun 19, 5:41 AM CDT | Severe Thunderstorm Warning | GRB | Calumet, Winnebago | 49 min |
| Jun 19, 5:57 AM CDT | Special Weather Statement | GRB | Brown | 48 min |
| Jun 19, 6:31 AM CDT | Special Marine Warning | GRB | 44 min | |
| Jun 19, 6:35 AM CDT | Special Weather Statement | GRB | Brown, Calumet, Kewaunee, Manitowoc | 40 min |
| Jun 19, 7:10 AM CDT | Special Weather Statement | GRB | Brown, Calumet, Manitowoc | 50 min |
| Jun 19, 7:52 AM CDT | Special Marine Warning | GRB | 36 min | |
| Jun 19, 8:04 AM CDT | Special Weather Statement | GRB | Manitowoc | 56 min |
| Jun 19, 8:31 AM CDT | Special Weather Statement | GRB | Manitowoc | 44 min |
| Jun 19, 8:45 AM CDT | Special Marine Warning | GRB | 45 min |
Nearby
Severe Thunderstorm Warnings in Wisconsin, 2021Every severe thunderstorm warning 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.