Alert archive / Wisconsin / Flash Flood Warnings in 2003
Flash Flood Warning 5, NWS Green Bay, WI
NWS Green Bay, WI issued this flash flood warning at Jul 30, 2003, 7:17 PM CDT for Brown County, Calumet County, Manitowoc 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 outline as issued.
The facts
- Issued
- Jul 30, 2003, 7:17 PM CDT (00:17 UTC)
- Expired
- Jul 30, 2003, 10:15 PM CDT
- In force
- 3 hr
- Issued by
- NWS Green Bay, WI
- Area
- Counties, with a storm outline in the text
Counties Brown County, WI, Calumet County, WI, Manitowoc County, WI
The radar
The Green Bay radar (KGRB), 32 km from the middle of the area, began a volume at 00:17 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, 0.3 hours before the alert went out and 30 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
- 127 J/kg
- Mixed-layer CIN
- -147 J/kg
- Mixed-layer LCL
- 900 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 104 m²/s²
- 0-3 km storm-relative helicity
- 142 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.7
The text
As transmitted, in the capitals the NWS used until 2016.
000
WGUS53 KGRB 310018
FFWGRB
WIC009-015-071-310315-
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE GREEN BAY WI
717 PM CDT WED JUL 30 2003
THE NATIONAL WEATHER SERVICE IN GREEN BAY HAS ISSUED A
* FLASH FLOOD WARNING FOR...
NORTHERN AND CENTRAL CALUMET COUNTY IN WISCONSIN
NORTHERN AND CENTRAL MANITOWOC COUNTY IN WISCONSIN
EXTREME SOUTHERN BROWN COUNTY IN WISCONSIN
* UNTIL 1015 PM CDT
* AT 715 PM CDT NATIONAL WEATHER SERVICE DOPPLER RADAR DETECTED
THUNDERSTORMS WITH TORRENTIAL RAIN. THE STORMS EXTENDED FROM LAKE
WINNEBAGO TO NORTHERN MANITOWOC COUNTY. THE STORMS WERE MOVING
EAST AT 20 MPH...OVER AREAS PREVIOUSLY INUNDATED BY HEAVY RAIN.
* RADAR ESTIMATES INDICATED THAT UP TO 4 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.
THIS IS A SERIOUS FLOODING SITUATION
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.
THIS WARNING EXTENDS THE FLASH FLOOD WARNING ISSUED EARLIER FOR
CALUMET COUNTY
LAT...LON 4424 8840 4407 8840 4405 8751 4432 8754
4433 8787 4425 8818
$$
JKL4 follow-up statements
000 WGUS73 KGRB 310047 FFSGRB WIC009-015-071-139-310145- FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE GREEN BAY WI 741 PM CDT WED JUL 30 2003 ...SERIOUS FLOODING SITUATION OVER EAST-CENTRAL WISCONSIN... AT 741 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR DETECTED THUNDERSTORMS WITH TORRENTIAL RAIN ACROSS EAST-CENTRAL WISCONSIN. THE STORMS WILL CONTINUE TO PRODUCE VERY HEAVY RAIN. A FLASH FLOOD WARNING IS IN EFFECT UNTIL 930 PM FOR NORTHERN WINNEBAGO COUNTY. A FLASH FLOOD WARNING IS IN EFFECT UNTIL 1015 PM FOR EXTREME SOUTHERN BROWN...NORTHERN AND CENTRAL MANITOWOC...NORTHERN AND CENTRAL CALUMET COUNTIES. WEATHER OBSERVERS INDICATED THAT 2 TO 5 INCHES OF RAIN HAD FALLEN IN THIS AREA. THE MOVEMENT OF THE STORMS WILL RESULT IN MORE RAIN FALLING OVER AREAS WHICH ALREADY RECEIVED HEAVY RAIN. ANOTHER 2 TO 3 INCHES OF RAIN IS LIKELY. FLOODING WILL CONTINUE IN NEENAH...MENASHA...DARBOY...AND THE TOWN OF HARRISON. FLOODING IS EXPECTED ACROSS FAR SOUTHERN BROWN COUNTY AND NORTHERN MANITOWOC COUNTY AS WELL. DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY. MOVE TO HIGHER GROUND. $$ JKL
000 WGUS73 KGRB 310123 FFSGRB WIC015-071-139-310315- FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE GREEN BAY WI 825 PM CDT WED JUL 30 2003 ...SERIOUS FLOODING SITUATION ACROSS EAST-CENTRAL WISCONSIN... AT 813 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO DETECT THUNDERSTORMS WITH VERY HEAVY RAIN. THE STORMS EXTENDED FROM NORTHERN CALUMET COUNTY INTO SOUTHERN BROWN AND NORTHERN MANITOWOC COUNTIES. A FLASH FLOOD WARNING IS IN EFFECT FOR NORTHERN AND CENTRAL MANITOWOC...NORTHERN AND CENTRAL CALUMET...AND NORTHERN WINNEBAGO COUNTIES UNTIL 1015 PM. OTHER THUNDERSTORMS WERE ACROSS OUTAGAMIE AND NORTHERN BROWN COUNTIES. FLASH FLOOD WARNINGS FOR OUTAGAMIE AND BROWN COUNTIES ARE IN EFFECT UNTIL 1115 PM. WEATHER OBSERVERS AND DOPPLER RADAR INDICATE AS MUCH AS 4 TO 7 INCHES OF RAIN HAD FALLEN IN THIS AREA. THE MOVEMENT OF THE STORMS WILL RESULT IN MORE RAIN FALLING OVER AREAS WHICH ALREADY FLOODING. ANOTHER 2 TO 3 INCHES OF RAIN IS LIKELY IN THE WARNING AREA. DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY. MOVE TO HIGHER GROUND. $$ JKL
000 WGUS73 KGRB 310203 FFSGRB WIC015-071-139-310315- FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE GREEN BAY WI 900 PM CDT WED JUL 30 2003 ...FLASH FLOOD WARNING REMAINS IN EFFECT FOR A PORTION OF EAST-CENTRAL WISCONSIN... AT 854 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR DETECTED THUNDERSTORMS WITH TORRENTIAL RAIN. THE STORMS EXTENDED FROM BROWN AND MANITOWOC COUNTIES WEST INTO WAUPACA AND WAUSHARA COUNTIES. A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 930 PM FOR NORTHERN WINNEBAGO COUNTY. A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1015 PM FOR NORTHERN AND CENTRAL CALUMET...AND NORTHERN AND CENTRAL MANITOWOC COUNTIES. AREAS THAT ARE AT RISK OF ADDITIONAL FLOODING INCLUDE MENASHA...DARBOY AND THE TOWN OF HARRISON. THIS IS A PARTICULARLY SERIOUS FLOODING SITUATION IN NORTHEAST WINNEBAGO AND NORTHERN CALUMET COUNTIES. RADAR INDICATED THAT 4 TO 7 INCHES OF RAIN HAD FALLEN IN THIS AREA. THE MOVEMENT OF THE STORMS WILL RESULT IN MORE RAIN FALLING OVER AREAS WHICH ALREADY RECEIVED HEAVY RAIN AND FLOODING. ANOTHER 1 TO 2 INCHES OF RAIN IS LIKELY. DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. $$ JKL
000 WGUS73 KGRB 310317 FFSGRB WIC015-071-310325- FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE GREEN BAY WI 1015 PM CDT WED JUL 30 2003 ...FLASH FLOOD WARNING FOR CALUMET AND MANITOWOC COUNTIES NO LONGER IN EFFECT... THE THREAT FOR SEVERE FLOODING HAS ENDED FOR CALUMET AND MANITOWOC COUNTIES. THE FLASH FLOOD WARNING IS NO LONGER IN EFFECT. HOWEVER...SCATTERED SHOWERS AND THUNDERSTORMS WILL CONTINUE UNTIL ABOUT MIDNIGHT. $$ JKL
The office that day
Everything else NWS Green Bay, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 30, 7:27 PM CDT | Flash Flood Warning | GRB | Winnebago | 3 hr |
| Jul 30, 8:18 PM CDT | Flash Flood Warning | GRB | Brown, Outagamie | 3 hr |
| Jul 31, 1:46 PM CDT | Severe Thunderstorm Warning | GRB | Waushara | 44 min |
| Jul 31, 2:04 PM CDT | Severe Thunderstorm Warning | GRB | Langlade | 41 min |
| Jul 31, 2:19 PM CDT | Severe Thunderstorm Warning | GRB | Manitowoc | 41 min |
| Jul 31, 2:41 PM CDT | Severe Thunderstorm Warning | GRB | Langlade | 49 min |
| Jul 31, 3:27 PM CDT | Severe Thunderstorm Warning | GRB | Langlade | 48 min |
| Jul 31, 3:51 PM CDT | Severe Thunderstorm Warning | GRB | Oconto | 54 min |
| Jul 31, 4:06 PM CDT | Severe Thunderstorm Warning | GRB | Marinette | 54 min |
| Jul 31, 4:21 PM CDT | Special Marine Warning | GRB | 54 min | |
| Jul 31, 4:21 PM CDT | Special Marine Warning | GRB | 54 min | |
| Jul 31, 5:31 PM CDT | Special Marine Warning | GRB | 74 min | |
| Jul 31, 6:27 PM CDT | Severe Thunderstorm Warning | GRB | Langlade | 33 min |
| Jul 31, 6:43 PM CDT | Special Marine Warning | GRB | 47 min |
Nearby
Flash Flood Warnings in Wisconsin, 2003Every flash flood warning in 2003
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.