Alert archive / Wisconsin / Flood Watches in 2020
Flood Watch 1, NWS Milwaukee, WI
NWS Milwaukee, WI issued this flood watch at Apr 29, 2020, 3:06 AM CDT for 5 counties in Wisconsin. It was in force for 27 hr.
The area
The counties it named.
The facts
- Issued
- Apr 29, 2020, 3:06 AM CDT (08:06 UTC)
- Expired
- Apr 30, 2020, 5:44 AM CDT
- In force
- 27 hr
- Issued by
- NWS Milwaukee, WI
- Flood severity
- None
Counties Kenosha County, WI, Milwaukee County, WI, Racine County, WI, Walworth County, WI, Waukesha County, WI
The radar
The Milwaukee radar (KMKX), 42 km from the middle of the area, began a volume at 08:09 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
Lincoln, IL (KILX), launched 00:00Z, 8.1 hours before the alert went out and 298 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
- 549 J/kg
- Mixed-layer CIN
- -34 J/kg
- Mixed-layer LCL
- 1190 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 132 m²/s²
- 0-3 km storm-relative helicity
- 196 m²/s²
- Significant tornado parameter
- 0.4
- Supercell composite
- 4.6
What forecasters said that day
The local office's own words before this flood watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Milwaukee, WI wrote its last area forecast discussion before this flood watch went out at Apr 29, 12:02 AM CDT, 3 hours 4 minutes earlier.
Area forecast discussion, Apr 29, 12:02 AM CDT, 3 hours 4 minutes before
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</html>Hazardous weather outlook, Apr 28, 9:37 PM CDT, 5 hours 29 minutes before
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</html>In the hours before
Special weather statement, Apr 29, 1:56 AM CDT, 1 hour 10 minutes before
SPECIAL WEATHER STATEMENT National Weather Service MILWAUKEE/SULLIVAN WI 156 AM CDT Wed Apr 29 2020 WIZ057>060-063>066-068>072-290900- Columbia-Dodge-Washington-Ozaukee-Dane-Jefferson-Waukesha- Milwaukee-Green-Rock-Walworth-Racine-Kenosha- Including the cities of Portage, Columbus, Lake Wisconsin, Lodi, Beaver Dam, Waupun, Mayville, West Bend, Germantown, Hartford, Mequon, Cedarburg, Grafton, Madison, Watertown, Fort Atkinson, Jefferson, Waukesha, Brookfield, New Berlin, Menomonee Falls, Muskego, Milwaukee, Monroe, Brodhead, Janesville, Beloit, Whitewater, Delavan, Elkhorn, Lake Geneva, East Troy, Racine, and Kenosha 156 AM CDT Wed Apr 29 2020 ...AREAS OF DENSE FOG EXPECTED THROUGH THE EARLY MORNING... Light winds and high relative humidity will allow fog to affect most of south central into southeast Wisconsin through the early morning. The fog will be dense in spots, reducing the visibility to one quarter mile or less. Late night motorists should be prepared for rapidly changing visibilities, and slow down should you drive into one of these dense fog areas. MBK
The office that day
Everything else NWS Milwaukee, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 29, 2:47 AM CDT | Dense Fog Advisory | MKX | Jefferson, Kenosha, Milwaukee, Ozaukee, Racine, Rock and 4 more | 7 hr |
| Apr 29, 5:50 AM CDT | Areal Flood Advisory | MKX | Walworth | 3 hr |
| Apr 29, 8:48 AM CDT | Areal Flood Advisory | MKX | Kenosha, Racine, Walworth | 8 hr |
| Apr 29, 9:20 AM CDT | River Flood Warning | MKX | Racine | 65 hr |
| Apr 29, 9:20 AM CDT | River Flood Warning | MKX | Milwaukee | 50 hr |
| Apr 29, 9:28 AM CDT | River Flood Watch | MKX | Kenosha | 13 hr |
| Apr 29, 6:15 PM CDT | Lakeshore Flood Advisory | MKX | Kenosha, Milwaukee, Ozaukee, Racine, Sheboygan | 19 hr |
Nearby
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.