Alert archive / Wisconsin / Flash Flood Warnings in 2002
Flash Flood Warning 13, NWS Green Bay, WI
NWS Green Bay, WI issued this flash flood warning at Aug 11, 2002, 11:20 PM CDT for Marathon County, Wisconsin. It was in force for 6 hr. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Aug 11, 2002, 11:20 PM CDT (04:20 UTC)
- Expired
- Aug 12, 2002, 5:00 AM CDT
- In force
- 6 hr
- Issued by
- NWS Green Bay, WI
- Area
- Counties, with a storm outline in the text
County Marathon County, WI
The radar
The Green Bay radar (KGRB), 146 km from the middle of the area, began a volume at 04:21 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
Green Bay/Straub, WI (KGRB), launched 00:00Z, 4.3 hours before the alert went out and 147 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
- 813 J/kg
- Mixed-layer CIN
- -97 J/kg
- Mixed-layer LCL
- 1807 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 163 m²/s²
- 0-3 km storm-relative helicity
- 206 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 4.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WGUS53 KGRB 120420 FFWGRB WIC073-121000- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE GREEN BAY WI 1119 PM CDT SUN AUG 11 2002 THE NATIONAL WEATHER SERVICE IN GREEN BAY HAS ISSUED A * FLASH FLOOD WARNING FOR... MARATHON COUNTY IN WISCONSIN * UNTIL 500 AM CDT * AT 1119 PM CDT NATIONAL WEATHER SERVICE DOPPLER RADAR DETECTED THUNDERSTORMS WITH TORRENTIAL RAIN. THE STORMS WERE IN SOUTHERN MARATHON COUNTY. THE STORMS WERE MOVING EAST AT 20 MPH. * RADAR ESTIMATES INDICATED THAT UP TO 5 INCHES OF RAIN HAD FALLEN IN THIS AREA. THE MOVEMENT OF THE STORMS WILL RESULT IN MORE RAIN FALLING OVER AREAS WHICH ALREADY RECEIVED HEAVY RAIN. ANOTHER 2 TO 3 INCHES OF RAIN IS LIKELY IN THIS AREA. SOME LOCATIONS WHICH ARE AT HIGH RISK OF FLASH FLOODING INCLUDE...FENWOOD...ROZELLVILLE... EDGAR...MARATHON CITY AND HALDER. 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 HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING. LAT...LON 4495 9028 4473 9023 4472 8929 4496 8935 KURIMSKI
3 follow-up statements
077 RWUS32 KGRB 120548 FFSGRB WIC073-121000- FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE GREEN BAY WI 1247 AM CDT MON AUG 12 2002 ...FLASH FLOOD WARNING REMAINS IN EFFECT FOR MARATHON COUNTY... AT 1247 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR DETECTED THUNDERSTORMS WITH TORRENTIAL RAIN. THE STORMS WERE LOCATED OVER WESTERN MARATHON COUNTY. THE STORMS WERE LOCATED MOVING EAST AT 25 MPH. THE STORMS WILL CONTINUE TO PRODUCE HEAVY RAIN. A FLASH FLOOD WARNING IS IN EFFECT. RADAR ESTIMATES INDICATED THAT UP TO 5 INCHES OF RAIN HAD FALLEN IN THIS AREA. THE MOVEMENT OF THE STORMS WILL RESULT IN MORE RAIN FALLING OVER AREAS WHICH ALREADY RECEIVED HEAVY RAIN. ANOTHER 2 TO 3 INCHES OF RAIN IS LIKELY IN THIS AREA. SOME LOCATIONS WHICH ARE AT HIGH RISK OF FLASH FLOODING INCLUDE...FENWOOD...MOSINEE...ATHENS... BEVENT AND BROKAW. 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 HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING. $$ KURIMSKI
658 RWUS32 KGRB 120729 FFSGRB WIC073-121000- FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE GREEN BAY WI 229 AM CDT MON AUG 12 2002 ...FLASH FLOOD WARNING REMAINS IN EFFECT FOR MARATHON COUNTY... AT 229 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR DETECTED THUNDERSTORMS WITH VERY HEAVY RAIN. THE STORMS WERE LOCATED OVER WESTERN MARATHON COUNTY. THE STORMS WERE MOVING EAST AT 20 MPH. THE STORMS WILL CONTINUE TO PRODUCE HEAVY RAIN. A FLASH FLOOD WARNING IS IN EFFECT. RADAR ESTIMATES INDICATED THAT UP TO 5 INCHES OF RAIN HAD FALLEN IN THIS AREA. THE MOVEMENT OF THE STORMS WILL RESULT IN MORE RAIN FALLING OVER AREAS WHICH ALREADY RECEIVED HEAVY RAIN. ANOTHER INCH OF RAIN IS LIKELY IN THIS AREA. SOME LOCATIONS WHICH ARE AT HIGH RISK OF FLASH FLOODING INCLUDE...MOSINEE...ATHENS...BEVENT...BROKAW AND EDGAR. BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLOODS AND FLASH FLOODS. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING. $$ KURIMSKI
040 RWUS32 KGRB 120903 FFSGRB WIC073-120920- FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE GREEN BAY WI 400 AM CDT MON AUG 12 2002 ...FLASH FLOOD WARNING FOR MARATHON COUNTY CANCELED... AT 400 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR DETECTED THE STORMS THAT HAD PROMPTED THE WARNING HAD WEAKENDED CONSIDERABLY...AND NO LONGER POSE A THREAT OF PRODUCING ADDITIONAL HEAVY RAIN. THE FLASH FLOOD WARNING WHICH HAD BEEN IN EFFECT HAS BEEN CANCELED. RADAR ESTIMATES INDICATED THAT UP TO 5 INCHES OF RAIN HAD FALLEN IN THIS AREA. ADDITIONAL RAIN IS EXPECTED DURING THE EARLY MORNING HOURS...HOWEVER THIS IS EXPECTED TO BE LIGHT. THE SITUATION WILL BE CLOSELY MONITORED IF ANOTHER FLASH FLOOD WARNING IS REQUIRED. $$ KURIMSKI
The office that day
Everything else NWS Green Bay, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 12, 2:00 PM CDT | Severe Thunderstorm Warning | GRB | Shawano, Waupaca | 45 min |
| Aug 12, 3:01 PM CDT | Special Marine Warning | GRB | 29 min | |
| Aug 12, 3:19 PM CDT | Severe Thunderstorm Warning | GRB | Door | 41 min |
| Aug 12, 3:24 PM CDT | Special Marine Warning | GRB | 66 min | |
| Aug 12, 3:24 PM CDT | Special Marine Warning | GRB | 66 min | |
| Aug 12, 4:27 PM CDT | Special Marine Warning | GRB | 78 min | |
| Aug 12, 4:27 PM CDT | Special Marine Warning | GRB | 78 min |
Nearby
Flash Flood Warnings in Wisconsin, 2002Every flash flood warning in 2002
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.