Alert archive / Wisconsin / Flash Flood Warnings in 1999
Flash Flood Warning 4, NWS Milwaukee, WI
NWS Milwaukee, WI issued this flash flood warning at May 16, 1999, 11:23 PM CDT for Green County, Wisconsin. It was in force for 3 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
- May 16, 1999, 11:23 PM CDT (04:23 UTC)
- Expired
- May 17, 1999, 2:25 AM CDT
- In force
- 3 hr
- Issued by
- NWS Milwaukee, WI
- Area
- Whole counties
County Green County, WI
The nearest sounding before it
Davenport, (KDVN), launched 00:00Z, 4.4 hours before the alert went out and 139 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
- 3009 J/kg
- Mixed-layer CIN
- -2 J/kg
- Mixed-layer LCL
- 1174 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 61 m²/s²
- 0-3 km storm-relative helicity
- 102 m²/s²
- Significant tornado parameter
- 0.7
- Supercell composite
- 5.9
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KMKE 170424 FFWMKE WIC045-170725- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI 1123 PM CDT SUN MAY 16 1999 THE NATIONAL WEATHER SERVICE IN MILWAUKEE/SULLIVAN HAS ISSUED A * FLASH FLOOD WARNING FOR... GREEN COUNTY IN SOUTH CENTRAL WISCONSIN * UNTIL 225 AM CDT * AT 1120 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED NUMEROUS THUNDERSTORMS WITH VERY HEAVY RAIN COVERING MUCH OF GREEN COUNTY...MOVING NORTHEAST AT 20 MPH. * NUMEROUS THUNDERSTORMS PRODUCING VERY HEAVY RAINS WERE OVER MUCH OF GREEN COUNTY WITH MORE THUNDERSTORMS MOVING IN FROM NORTHWEST ILLINOIS AND EASTERN IOWA. DOPPLER RADAR ESTIMATES RAINFALL OF 1 TO 2 INCHES IN THE PAST HOUR ON TOP OF HEAVY RAINS EARLIER THIS EVENING. THUNDERSTORMS WITH HEAVY RAIN WILL CONTINUE THROUGH AT LEAST 2 AM. BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGER OF FLOODING. THESE STORMS WILL ALSO PRLODUCE INTENSE LIGHTNING. JH/SD
What forecasters said that day
The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
In the hours before
Local storm report, May 16, 8:02 PM CDT, 3 hours 21 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
802 PM CDT SUN MAY 16 1999
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0625 PM WEST BEND WI 60 MPH TSTM GUST
05/16/99 WASHINGTON
0635 PM WATERFORD WI 64 MPH TSTM GUST
05/16/99 RACINE
0735 PM KENOSHA WI 1.75 INCH HAIL
05/16/99 KENOSHA
GDLocal storm report, May 16, 8:02 PM CDT, 3 hours 21 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
802 PM CDT SUN MAY 16 1999
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0625 PM WEST BEND WI 60 MPH TSTM GUST
05/16/99 WASHINGTON
0635 PM WATERFORD WI 64 MPH TSTM GUST
05/16/99 RACINE
0735 PM KENOSHA WI 1.75 INCH HAIL
05/16/99 KENOSHA
GDThe office that day
Everything else NWS Milwaukee, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 16, 7:37 PM CDT | Severe Thunderstorm Warning | MKX | Kenosha | 63 min |
| May 16, 9:15 PM CDT | Severe Thunderstorm Warning | MKX | Lafayette | 60 min |
| May 16, 9:20 PM CDT | Severe Thunderstorm Warning | MKX | Iowa | 60 min |
| May 16, 10:10 PM CDT | Flash Flood Warning | MKX | Iowa, Lafayette | 3 hr |
| May 16, 10:10 PM CDT | Flash Flood Warning | MKX | Sauk | 3 hr |
| May 16, 10:17 PM CDT | Severe Thunderstorm Warning | MKX | Green, Lafayette | 58 min |
| May 16, 10:43 PM CDT | Flash Flood Warning | MKX | Columbia, Marquette | 3 hr |
| May 16, 11:06 PM CDT | Severe Thunderstorm Warning | MKX | Dane | 59 min |
| May 17, 12:30 AM CDT | Severe Thunderstorm Warning | MKX | Rock | 60 min |
| May 17, 1:24 AM CDT | Severe Thunderstorm Warning | MKX | Walworth | 61 min |
| May 17, 1:30 AM CDT | Severe Thunderstorm Warning | MKX | Kenosha, Racine | 60 min |
| May 17, 4:10 AM CDT | Flash Flood Warning | MKX | Green, Lafayette | 14 hr |
Nearby
Flash Flood Warnings in Wisconsin, 1999Every flash flood warning in 1999
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.