Alert archive / Wisconsin / Flash Flood Warnings in 1998
Flash Flood Warning 19, NWS Milwaukee, WI
NWS Milwaukee, WI issued this flash flood warning at Aug 6, 1998, 3:05 PM CDT for Milwaukee County, Ozaukee County, Washington County, Wisconsin. It was in force for 5 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
- Aug 6, 1998, 3:05 PM CDT (20:05 UTC)
- Expired
- Aug 6, 1998, 8:00 PM CDT
- In force
- 5 hr
- Issued by
- NWS Milwaukee, WI
- Area
- Whole counties
Counties Milwaukee County, WI, Ozaukee County, WI, Washington County, WI
The nearest sounding before it
Green Bay/Straub, WI (KGRB), launched 12:00Z, 8.1 hours before the alert went out and 135 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
- 53 J/kg
- Mixed-layer CIN
- -16 J/kg
- Mixed-layer LCL
- 524 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 24 m²/s²
- 0-3 km storm-relative helicity
- 111 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KMKE 062006 FFWMKE WIC079-089-131-070105- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI 305 PM CDT THU AUG 6 1998 THE NATIONAL WEATHER SERVICE IN MILWAUKEE/SULLIVAN WI HAS ISSUED A * FLASH FLOOD WARNING FOR... MILWAUKEE COUNTY IN SOUTHEASTERN WISCONSIN OZAUKEE COUNTY IN SOUTHEASTERN WISCONSIN WASHINGTON COUNTY IN SOUTHEASTERN WISCONSIN * UNTIL 800 PM CDT * AT 3 PM CDT... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED SCATTERED HEAVY THUNDERSTORMS OVER SOUTHEAST WISCONSIN. THE STORMS WERE MOVING VERY SLOWLY NORTHWARD AT AROUND 10 MPH. * LOCALIZED TORRENTIAL RAINS WITH RAINFALL AMOUNTS BETWEEN 1 AND 2 INCHES PER HOUR ARE INDICATED WITH SOME OF THESE STORMS. THE STORMS ARE EXPECTED TO PERSIST INTO THE EVENING HOURS. MOTORISTS SHOULD BE ESPECIALLY CAREFUL AT NIGHT AND AVOID DRIVING INTO MOVING WATER OF UNKNOWN DEPTH...LOW WATER CROSSINGS AND FLOOD PRONE AREAS. MK
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
Special weather statement, Aug 6, 11:03 AM CDT, 4 hours 2 minutes before
WIZ046-047-051-052-056>060-062>072-070000- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI 1103AM CDT THU AUG 6 1998 ...NO RISK OF SEVERE THUNDERSTORMS TODAY OR TONIGHT... ...FOR SOUTH CENTRAL AND SOUTHEAST WISCONSIN... DISCUSSION... A VERY MOIST ATMOSPHERE COMBINED WITH LOW PRESSURE MOVING VERY SLOWLY THROUGH EASTERN IOWA AND WESTERN ILLINOIS WILL SET THE STAGE FOR SHOWERS AND THUNDERSTORMS TO BECOME MORE NUMEROUS ACROSS SOUTHEAST AND SOUTH CENTRAL WISCONSIN THIS AFTERNOON AND TONIGHT. THE STORMS SHOULD NOT BE SEVERE...BUT WILL BE CAPABLE OF PRODUCING LOCALLY HEAVY RAINFALL. SPOTTER ACTION... STORM SPOTTER GROUPS WILL NOT BE NEEDED FOR ACTIVATION THIS AFTERNOON OR TONIGHT ACROSS SOUTH CENTRAL AND SOUTHEAST WISCONSIN. ZAJDEL
The office that day
Everything else NWS Milwaukee, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 5, 9:00 PM CDT | Flash Flood Warning | MKX | Rock, Walworth | 3 hr |
| Aug 5, 11:59 PM CDT | Flash Flood Warning | MKX | Rock, Walworth | 6 hr |
| Aug 6, 6:22 AM CDT | Flash Flood Warning | MKX | Sheboygan | 4 hr |
| Aug 6, 2:04 PM CDT | Flash Flood Warning | MKX | Dodge, Jefferson, Waukesha | 6 hr |
| Aug 6, 2:04 PM CDT | Flash Flood Warning | MKX | Columbia, Dane, Green | 6 hr |
| Aug 6, 2:04 PM CDT | Flash Flood Warning | MKX | Lafayette | 6 hr |
| Aug 6, 6:00 PM CDT | Flash Flood Warning | MKX | Rock, Walworth | 2 hr |
Nearby
Flash Flood Warnings in Wisconsin, 1998Every flash flood warning in 1998
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.