Alert archive / Wisconsin / Flash Flood Warnings in 1993
Flash Flood Warning 23, NWS Green Bay, WI
NWS Green Bay, WI issued this flash flood warning at Jul 18, 1993, 4:31 AM CDT for Columbia County, Sauk County, Wisconsin. It was in force for 7 hr.
The area
The counties it named.
The facts
- Issued
- Jul 18, 1993, 4:31 AM CDT (09:31 UTC)
- Expired
- Jul 18, 1993, 11:30 AM CDT
- In force
- 7 hr
- Issued by
- NWS Green Bay, WI
- Area
- Whole counties
Counties Columbia County, WI, Sauk County, WI
The nearest sounding before it
Green Bay/Straub, WI (KGRB), launched 00:00Z, 9.5 hours before the alert went out and 169 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
- 10 J/kg
- Mixed-layer CIN
- -162 J/kg
- Mixed-layer LCL
- 1117 m above ground
- 0-6 km bulk shear
- 10 kt
- 0-1 km storm-relative helicity
- -14 m²/s²
- 0-3 km storm-relative helicity
- 8 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 KMSN 180933 FFWMSN WIC021-111-181630- BULLETIN - EBS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE MADISON WI 431 AM CDT SUN JUL 18 1993 THE NATIONAL WEATHER SERVICE IN MADISON HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 1200 PM CDT...NOON... FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN SOUTH CENTRAL WISCONSIN ...COLUMBIA COUNTY...SAUK COUNTY THE THUNDERSTORMS WHICH HAD PASSED THROUGH THE SAUK AND COLOMBIA COUNTY AREA HAVE DROPPED UP TO AN ESTIMATED FOOT OF WATER IN THE AREA. MANY ROADS AND HIGHWAYS HAVE BECOME IMPASSIBLE. PEOPLE ARE BEING RESCUED FROM THEIR HOMES AND CARS. TRAVEL IS NOT ADVISED IN THE AREA. SOME BASEMENTS HAVE CAVED IN AND MUD SLIDES HAVE OCCURRED. MOST STREAMS AND RIVERS CONTINUE ABOVE FLOOD STAGE AT 400AM CDT. THIS FLOOD WARNING REPLACES THE OLDER ONE AND CONTINUES UNTIL NOON TODAY. BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLOODS AND FLASH FLOODS. IF FLASH FLOODING IS OBSERVED...ACT QUICKLY. MOVE UP TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING. A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IS IMMINENT. MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS BRIDGES...DIPS...OR LOW SPOTS IF WATER COVERS THE ROADWAY. NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL ONE...ON FOOT. TO ESCAPE RISING WATER MOVE UP TO HIGHER GROUND. STIMACH &
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, Jul 18, 2:33 AM CDT, 1 hour 58 minutes before
WIZ013-503-180830- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GREEN BAY WI 230 AM CDT SUN JUL 18 1993 AT 230AM CDT WEATHER SERVICE RADAR SHOWED A STRONG THUNDERSTORM ENTERING SOUTHWEST MANITOWOC COUNTY JUST WEST OF ST. NAZIANZ WHICH WOULD BE 30 MILES EAST OF OSHKOSH. THIS STORM WAS MOVING NORTHEAST AT 20 TO 25 MPH AND WILL BE AFFECTING THE CITIES OF ST. NAZIANZ... VALDERS AND COLLINS BY 235AM CDT. THE THUNDERSTORM IS EXPECTED TO MOVE THROUGH THE REST OF CENTRAL AND SOUTHERN MANITOWOC COUNTY AND THEN OVER LAKE MICHIGAN BY 3AM CDT. THESE THUNDERSTORMS WERE PRODUCING HEAVY DOWNPOURS OF RAIN WHICH MAY RESULT IN PONDING OF WATER ON AREA ROADWAYS. DO NOT DRIVE YOUR CAR INTO AREAzS WHERE STANDING WATER COVERS THE ROAD. BOATERS ON LAKE MICHIGAN OFFSHORE OF MANITOWOC COUNTY SHOULD SEEK SAFE HARBOR IMMEDIATELY. PLH PLH
Special weather statement, Jul 18, 3:25 AM CDT, 1 hour 6 minutes before
WIZ008-180930- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GREEN BAY WI 325 AM CDT SUN JUL 18 1993 ...STRONG THUNDERSTORMS OVER NORTHEAST WISCONSIN... AT 315 AM CDT WEATHER SERVICE RADDAR SHOWED A CLUSTER OF STRONG THUNDERSTORMS OVER WESTERN OUTAGAMIE AND NORTHEAST WAUPACA COUNTY OR FROM 10 TO 30 MILES NORTHWEST OF THE CITY OF APPLETON. THESE THUNDERSTORMS WERE MOVING NORTHEAST AT 20 TO 25 MPH AND WILL BE AFFECTING SHAWANO AND OUTAGAMIE COUNTIES UNTIL 430 AM CDT. SOME CITIES IN THE PATH OF THESE STORMS ARE SEYMOUR...NAVARINO AND SHAWANO. THESE THUNDERSTORMS WERE PRODUCING HEAVY DOWNPOURS OF RAIN WHICH MAY RESULT IN PONDING OF WATER ON AREA ROADWAYS. DO NOT DRIVE YOUR CAR INTO AREAS WHERE STANDING WATER COVERS THE ROAD. PLH WWUS35KMKE ,I
Special weather statement, Jul 18, 3:27 AM CDT, 1 hour 4 minutes before
WIZ008-180930- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GREEN BAY WI 325 AM CDT SUN JUL 18 1993 ...STRONG THUNDERSTORMS OVER NORTHEAST WISCONSIN... AT 315 AM CDT WEATHER SERVICE RADDAR SHOWED A CLUSTER OF STRONG THUNDERSTORMS OVER WESTERN OUTAGAMIE AND NORTHEAST WAUPACA COUNTY OR FROM 10 TO 30 MILES NORTHWEST OF THE CITY OF APPLETON. THESE THUNDERSTORMS WERE MOVING NORTHEAST AT 20 TO 25 MPH AND WILL BE AFFECTING SHAWANO AND OUTAGAMIE COUNTIES UNTIL 430 AM CDT. SOME CITIES IN THE PATH OF THESE STORMS ARE SEYMOUR...NAVARINO AND SHAWANO. THESE THUNDERSTORMS WERE PRODUCING HEAVY DOWNPOURS OF RAIN WHICH MAY RESULT IN PONDING OF WATER ON AREA ROADWAYS. DO NOT DRIVE YOUR CAR INTO AREAS WHERE STANDING WATER COVERS THE ROAD. PLH
Special weather statement, Jul 18, 3:56 AM CDT, 35 minutes before
WIZ005-008-181000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GREEN BAY WI 356 AM CDT SUN JUL 18 1993 ...THUNDERSTORMS WITH VERY HEAVY RAINS MOVING THRU SHAWANO AND OUTAGAMIE COUNTIES... AT 355 AM CDT WEATHER SERVICE RADAR SHOWED A CLUSTER OF STRONG THUNDERSTORMS MOVING THRU SHAWANO...OUTAGAMIE ANDD WESTERM BROWN COUNTY. THESE STORMS EXTENDED FROM JUST WEST OF THE CITY OF GREEN BAY TO 40 MILES NORTHWEST OF GREEN BAY. THESE THUNDERSTORMS WILL BE AFFECTING BRONW...OUTAGAMIE...SHAWANO AND OCONTO COUNTIES UNTIL 445 AM CDT. NO SEVERE WEATHER HAS BEEN REPORTED WITH THESE STORMS. HOWEVER THESE STORMS ARE CAPABLE OF PRODUCING VERY HEAVY RAINS AND DANGEROUS LIGHTNING. SOME URBAN FLOODING AND FLOODING OF LOW LYING AREAS IS POSSIBLE AS THESE STORMS MOVE THROUGH. PLH 21.8W MAX WIND 115 KT...GUSTS 140 KT 50 KT... 50NE 50SE 50SW 50NW 34 KT...100NE 100SE 100SW 100NW FORECAST VALID 19/1800Z 13.0N 123.9W MAX WIND 115 KT...GUSTS 140 KT 50 KT... 50NE 50SE 50SW 50NW 34 KT...100NE 100SE 100SW 100NW REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 11.6N 119.3W EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE OUTLOOK VALID 20/0600Z 13.7N 126.4W MAX WIND 115 KT...GUSTS 140 KT 50 KT... 50NE 50SE 50SW 50NW OUTLOOK VALID 21/0600Z 15.5N 132.0W MAX WIND 90 KT...GUSTS 110 KT 50 KT... 50NE 50SE 50SW 50NW NEXT ADVISORY AT 18/1500Z MAYFIELD
Special weather statement, Jul 18, 3:57 AM CDT, 34 minutes before
WIZ005-008-181000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GREEN BAY WI 356 AM CDT SUN JUL 18 1993 ...THUNDERSTORMS WITH VERY HEAVY RAINS MOVING THRU SHAWANO AND OUTAGAMIE COUNTIES... AT 355 AM CDT WEATHER SERVICE RADAR SHOWED A CLUSTER OF STRONG THUNDERSTORMS MOVING THRU SHAWANO...OUTAGAMIE ANDD WESTERM BROWN COUNTY. THESE STORMS EXTENDED FROM JUST WEST OF THE CITY OF GREEN BAY TO 40 MILES NORTHWEST OF GREEN BAY. THESE THUNDERSTORMS WILL BE AFFECTING BRONW...OUTAGAMIE...SHAWANO AND OCONTO COUNTIES UNTIL 445 AM CDT. NO SEVERE WEATHER HAS BEEN REPORTED WITH THESE STORMS. HOWEVER THESE STORMS ARE CAPABLE OF PRODUCING VERY HEAVY RAINS AND DANGEROUS LIGHTNING. SOME URBAN FLJOODING AND FLOODING OF LOW LYING AREAS IS POSSIBLE AS THESE STORMS MOVE THROUGH. PLH
Special weather statement, Jul 18, 4:19 AM CDT, 12 minutes before
WIZ005-008-503-181015- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GREEN BAY WI 418 AM CDT SUN JUL 18 1993 ...HEAVY RAINS OVER BROWN AND SHAWANO COUNTIES OF NORTHEAST WISCONSIN... AT 415 AM CDT WEATHER SERVICE RADAR SHOWED A CLUSTER OF STRONG THUNDERSTORMS OVER BRONW...OUTAGAMIE AND SHAWANO COUNTIES WHICH EXTENDED FROM THE CITY OF GREEN BAY TO THE CITY OF SHAWANO OR 40 MILES NORTHWEST OF GREEN BAY. SHAWANO...BROWN AND OCONTO COUNTIES WILL BE AFFECTED BY THESE THUNDERSTORMS EARLY THIS MORNING. NO SEVERE WEATHER HAS BEEN REPORTED WITH THESE STORMS. HOWEVER THESE STORMS ARE CAPABLE OF PRODUCING TORRENTIAL RAINS AND DANGEROUS LIGHTNING. SOME URBAN FLOODING AND FLOODING OF LOW LYING AREAS IS POSSIBLE AS THESE STORMS MOVE THROUGH. BOATERS ON THE LOWER PORTION OF THE BAY OF GREEN BAY SHOULD SEEK SAFE HARBOR. PLH
The office that day
Everything else NWS Green Bay, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 17, 11:32 PM CDT | Flash Flood Warning | GRB | Columbia, Dane, Sauk | 5 hr |
Nearby
Flash Flood Warnings in Wisconsin, 1993Every flash flood warning in 1993
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.