Alert archive / Wisconsin / Flash Flood Warnings in 1990
Flash Flood Warning 10, NWS Green Bay, WI
NWS Green Bay, WI issued this flash flood warning at Aug 17, 1990, 11:58 PM CDT for Iowa County, Wisconsin. It was in force for 6 hr.
The area
The counties it named.
The facts
- Issued
- Aug 17, 1990, 11:58 PM CDT (04:58 UTC)
- Expired
- Aug 18, 1990, 6:15 AM CDT
- In force
- 6 hr
- Issued by
- NWS Green Bay, WI
- Area
- Whole counties
County Iowa County, WI
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
The nearest sounding before it
Green Bay/Straub, WI (KGRB), launched 00:00Z, 5.0 hours before the alert went out and 232 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
- 729 J/kg
- Mixed-layer CIN
- -6 J/kg
- Mixed-layer LCL
- 740 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- 28 m²/s²
- 0-3 km storm-relative helicity
- 47 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
The office that day
Everything else NWS Green Bay, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 17, 9:10 PM CDT | Severe Thunderstorm Warning | GRB | Iowa, Richland, Sauk | 65 min |
| Aug 17, 11:15 PM CDT | Flash Flood Warning | GRB | Iowa | 3 hr |
| Aug 18, 5:57 PM CDT | Tornado Warning | GRB | Adams, Juneau | 63 min |
| Aug 18, 6:23 PM CDT | Tornado Warning | GRB | Green Lake, Marquette, Waushara | 67 min |
Nearby
Flash Flood Warnings in Wisconsin, 1990Every flash flood warning in 1990
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.