Alert archive / Wisconsin / Flash Flood Watches in 2020
Flash Flood Watch 1, NWS Green Bay, WI
NWS Green Bay, WI issued this flash flood watch at Jun 9, 2020, 11:07 AM CDT for 5 counties in Wisconsin. It took effect at Jun 9, 2020, 6:00 PM CDT. It was in force for 9 hr.
The area
The counties it named.
The facts
- Issued
- Jun 9, 2020, 11:07 AM CDT (16:07 UTC)
- In effect from
- Jun 9, 2020, 6:00 PM CDT
- Expired
- Jun 10, 2020, 2:48 AM CDT
- In force
- 9 hr
- Issued by
- NWS Green Bay, WI
- Flood severity
- None
Counties Lincoln County, WI, Marathon County, WI, Oneida County, WI, Vilas County, WI, Wood County, WI
The radar
The Green Bay radar (KGRB), 154 km from the middle of the area, began a volume at 16:09 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 12:00Z, 4.1 hours before the alert went out and 156 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
- 2796 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- 17 m²/s²
- 0-3 km storm-relative helicity
- 52 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this flash flood watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Green Bay, WI wrote its last area forecast discussion before this flash flood watch went out at Jun 9, 6:06 AM CDT, 5 hours 1 minute earlier.
Area forecast discussion, Jun 9, 6:06 AM CDT, 5 hours 1 minute before
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</html>Hazardous weather outlook, Jun 9, 3:43 AM CDT, 7 hours 24 minutes before
Hazardous Weather Outlook National Weather Service Green Bay WI 343 AM CDT Tue Jun 9 2020 WIZ005-010>013-018>022-030-031-035>040-045-048>050-073-074-100845- Vilas-Oneida-Forest-Florence-Northern Marinette County-Lincoln- Langlade-Menominee-Northern Oconto County-Door-Marathon-Shawano- Wood-Portage-Waupaca-Outagamie-Brown-Kewaunee-Waushara-Winnebago- Calumet-Manitowoc-Southern Marinette County- Southern Oconto County- 343 AM CDT Tue Jun 9 2020 This Hazardous Weather Outlook is for north-central and northeast Wisconsin. .DAY ONE...Today and Tonight A several hour period of of heavy rain, thunderstorms and gusty winds is expected later today and tonight as the remnants of Tropical Storm Cristobal moves across Wisconsin. Local flooding of small streams and urban areas is possible. Gusty winds and large waves could produce local lakeshore flooding on the Lake Michigan shoreline tonight. Dangerous swimming conditions are likely late this afternoon and tonight as well. .DAYS TWO THROUGH SEVEN...Wednesday through Monday Strong currents and dangerous swimming conditions are expected along Lake Michigan beaches on Wednesday due to high waves. Thunderstorms are possible early next week, but it is too early to pin down any specific timing or severe probability. .SPOTTER INFORMATION STATEMENT... Spotters are requested to report any wind gusts greater than 40 mph, rainfall amounts greater than once inch, and any flooding. LMZ521-522-541>543-100845- The Bay of Green Bay south of a line from Cedar River MI to Rock Island Passage-Lake Michigan from Washington Island to Sheboygan- 343 AM CDT Tue Jun 9 2020 This Hazardous Weather Outlook is for portions of northwest Lake Michigan and the waters of Green Bay. .DAY ONE...Today and Tonight Gale force wind gusts, high waves, and a few thunderstorms are expected tonight. A Gale Warning is in effect for the Lake Michigan nearshore waters. Hazardous conditions for small craft are expected on the bay, where a Small Craft Advisory is in effect late this afternoon through tonight. .DAYS TWO THROUGH SEVEN...Wednesday through Monday Conditions hazardous for small craft are likely through midday Wednesday. Gale force wind gusts are possible Wednesday evening through Thursday morning. RDM/KLJ
The office that day
Everything else NWS Green Bay, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 9, 3:45 AM CDT | Gale Warning | GRB | 27 hr | |
| Jun 9, 3:45 AM CDT | Small Craft Advisory | GRB | 12 hr | |
| Jun 9, 3:48 AM CDT | Beach Hazards Statement | GRB | Door, Kewaunee, Manitowoc | 32 hr |
| Jun 9, 3:37 PM CDT | Wind Advisory | GRB | Brown, Calumet, Door, Kewaunee, Manitowoc, Marinette and 3 more | 14 hr |
Nearby
Flash Flood Watches in Wisconsin, 2020Every flash flood watch in 2020
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.