Alert archive / Wisconsin / Excessive Heat Warnings in 2018
Excessive Heat Warning 1, NWS Milwaukee, WI
NWS Milwaukee, WI issued this excessive heat warning at Jun 29, 2018, 2:31 AM CDT for 18 counties in Wisconsin. It took effect at Jun 29, 2018, 12:00 PM CDT. It was in force for 52 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jun 29, 2018, 2:31 AM CDT (07:31 UTC)
- In effect from
- Jun 29, 2018, 12:00 PM CDT
- Expired
- Jul 1, 2018, 4:00 PM CDT
- In force
- 52 hr
- Issued by
- NWS Milwaukee, WI
Counties Columbia County, WI, Dane County, WI, Dodge County, WI, Fond du Lac County, WI, Green County, WI, Green Lake County, WI, Iowa County, WI, Jefferson County, WI, Kenosha County, WI, Lafayette County, WI, Marquette County, WI, Milwaukee County, WI, Racine County, WI, Rock County, WI, Sauk County, WI, Walworth County, WI, Washington County, WI, Waukesha County, WI
The radar
The Milwaukee radar (KMKX), 35 km from the middle of the area, began a volume at 07:30 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, 7.5 hours before the alert went out and 331 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
- 1599 J/kg
- Mixed-layer CIN
- -203 J/kg
- Mixed-layer LCL
- 1432 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- 55 m²/s²
- 0-3 km storm-relative helicity
- 139 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.8
What forecasters said that day
The local office's own words before this excessive heat warning 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 excessive heat warning went out at Jun 28, 10:57 PM CDT, 3 hours 34 minutes earlier.
Area forecast discussion, Jun 28, 10:57 PM CDT, 3 hours 34 minutes before
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</html>Hazardous weather outlook, Jun 28, 9:45 PM CDT, 4 hours 46 minutes before
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Excessive Heat Warnings in Wisconsin, 2018Every excessive heat warning in 2018
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.