Alert archive / Wisconsin / Flash Flood Warnings in 2008
Flash Flood Warning 7, NWS Green Bay, WI
NWS Green Bay, WI issued this flash flood warning at Jul 16, 2008, 2:54 PM CDT for Calumet County, Manitowoc County, Winnebago County, Wisconsin. It was in force for 111 min. 5 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Jul 16, 2008, 2:54 PM CDT (19:54 UTC)
- Expired
- Jul 16, 2008, 4:45 PM CDT
- In force
- 111 min
- Issued by
- NWS Green Bay, WI
- Area
- Storm-based polygon
- Flood severity
- None
Counties Calumet County, WI, Manitowoc County, WI, Winnebago County, WI
The radar
The Green Bay radar (KGRB), 50 km from the middle of the area, began a volume at 19:56 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 16, 3:15 PM CDT | FLASH FLOOD | 7 Wnw Hilbert, WI | WATER RUNNING ACROSS HIGHWAY 10 BY MILITARY ROAD...HIGH WATER SIGNS HAVE BEEN POSTED. |
| Jul 16, 4:00 PM CDT | FLASH FLOOD | 5 N St Nazianz, WI | HIGHWAY 151 CLOSED NORTH OF ST NAZIANZ. |
| Jul 16, 4:00 PM CDT | FLASH FLOOD | 8 Sw Manitowoc, WI | PORTIONS OF HIGHWAY C AND CENTER ROAD WASHING AWAY WEST OF NEWTON. |
| Jul 16, 4:00 PM CDT | FLASH FLOOD | Sherwood, WI | WATER ALSO COVERING SOME ROADS IN STOCKBRIDGE AND THE TOWN OF HARRISON. |
| Jul 16, 4:15 PM CDT | FLASH FLOOD | Stockbridge, WI | WATER OVER ROADS |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Green Bay/Straub, WI (KGRB), launched 12:00Z, 7.9 hours before the alert went out and 48 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
- 177 J/kg
- Mixed-layer CIN
- -330 J/kg
- Mixed-layer LCL
- 1593 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 8 m²/s²
- 0-3 km storm-relative helicity
- 71 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
WGUS53 KGRB 161954
FFWGRB
WIC015-071-139-162145-
/O.NEW.KGRB.FF.W.0007.080716T1954Z-080716T2145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE GREEN BAY WI
254 PM CDT WED JUL 16 2008
THE NATIONAL WEATHER SERVICE IN GREEN BAY HAS ISSUED A
* FLASH FLOOD WARNING FOR...
CALUMET COUNTY IN EAST CENTRAL WISCONSIN...
MANITOWOC COUNTY IN EAST CENTRAL WISCONSIN...
WINNEBAGO COUNTY IN EAST CENTRAL WISCONSIN...
* UNTIL 445 PM CDT
* AT 247 PM...DOPPLER RADAR INDICATED HEAVY RAIN WILL PRODUCE FLASH
FLOODING FROM SLOW MOVING THUNDERSTORMS.
* LOCATIONS IMPACTED INCLUDE...
LAKE POYGAN...BRILLION...OSHKOSH...VALDERS
ADDITIONAL RAINFALL AMOUNTS OF 1 TO 2 INCHES ARE LIKELY IN THE WARNED
AREA.
THE VERY SLOW MOVEMENT OF THE THUNDERSTORMS WILL SIGNIFICANTLY
INCREASE THE RISK OF FLASH FLOODING.
THIS WARNING REPLACES THE PREVIOUS WARNINGS FOR CALUMET AND
WINNEBAGO COUNTIES.
EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY
ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS AND OTHER LOW
LYING AREAS ARE SUBJECT TO FLOODING.
LAT...LON 4424 8886 4423 8750 4421 8748 4415 8752
4409 8764 4398 8766 4389 8773 4389 8817
4393 8818 4393 8838 4390 8839 4390 8888
$$
TH2 follow-up statements
000
WGUS73 KGRB 162019
FFSGRB
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE GREEN BAY WI
319 PM CDT WED JUL 16 2008
WIC015-071-139-162145-
/O.CON.KGRB.FF.W.0007.000000T0000Z-080716T2145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MANITOWOC-WINNEBAGO-CALUMET-
319 PM CDT WED JUL 16 2008
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 445 PM CDT FOR
CALUMET...WINNEBAGO AND MANITOWOC COUNTIES...
AT 314 PM...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED WATER MOVING
OVER HIGHWAY 10 NEAR MILITARY ROAD AND NEAR THE TOWN OF SHOREWOOD.
ADDITIONAL LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
VALDERS...MANITOWOC...LAKE POYGAN...CHILTON AND BRILLION.
ADDITIONAL RAINFALL AMOUNTS OF 1 TO 2 INCHES ARE LIKELY IN THE WARNED
AREA.
THE VERY SLOW MOVEMENT OF THE THUNDERSTORMS WILL SIGNIFICANTLY
INCREASE THE RISK OF FLASH FLOODING.
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. MOVE TO HIGHER GROUND.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 600 PM WEDNESDAY
EVENING FOR NORTHEASTERN WISCONSIN.
LAT...LON 4424 8886 4423 8750 4421 8748 4415 8752
4409 8764 4398 8766 4389 8773 4389 8817
4393 8818 4393 8838 4390 8839 4390 8888
$$
TH000
WGUS73 KGRB 162120
FFSGRB
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE GREEN BAY WI
420 PM CDT WED JUL 16 2008
WIC015-071-139-162145-
/O.CON.KGRB.FF.W.0007.000000T0000Z-080716T2145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MANITOWOC-WINNEBAGO-CALUMET-
420 PM CDT WED JUL 16 2008
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 445 PM CDT FOR
CALUMET...WINNEBAGO AND MANITOWOC COUNTIES...
SEVERAL LOCAL LAW ENFORCEMENT OFFICIALS HAVE OBSERVED FLASH FLOODING
OVER THE WARNED AREA.
AT 405 PM...THE MANITOWOC COUNTY SHERIFFS DEPARTMENT REPORTED
HIGHWAY 151 CLOSED NEAR ST NAZIANZ AND PORTIONS OF THE ROAD WASHING
AWAY NEAR THE INTERSECTION OF HIGHWAY C AND CENTER ROAD WEST OF
NEWTON.
AT 406 PM...THE WINNEBAGO COUNTY SHERIFFS DEPARTMENT OBSERVED SOME
MINOR PONDING OF WATER NEAR THE INTERSECTION OF HIGHWAY 21 AND
HIGHWAY 41 IN OSHKOSH.
AT 408 PM...THE CALUMET COUNTY SHERIFFS DEPARTMENT REPORTED WATER
OVER SOME ROADS IN THE TOWNS OF SHERWOOD...HARRISON AND
STOCKBRIDGE.
UP TO ANOTHER INCH IS LIKELY IN THE WARNED AREA.
EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY
ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS AND OTHER LOW
LYING AREAS ARE SUBJECT TO FLOODING.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 600 PM WEDNESDAY
EVENING FOR NORTHEASTERN WISCONSIN.
LAT...LON 4424 8886 4423 8750 4421 8748 4415 8752
4409 8764 4398 8766 4389 8773 4389 8817
4393 8818 4393 8838 4390 8839 4390 8888
$$
THThe office that day
Everything else NWS Green Bay, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 16, 12:02 PM CDT | Severe Thunderstorm Warning | GRB | Lincoln, Marathon | 58 min |
| Jul 16, 12:21 PM CDT | Severe Thunderstorm Warning | GRB | Portage, Waupaca | 54 min |
| Jul 16, 12:37 PM CDT | Severe Thunderstorm Warning | GRB | Wood | 53 min |
| Jul 16, 12:52 PM CDT | Severe Thunderstorm Warning | GRB | Marathon, Portage, Wood | 68 min |
| Jul 16, 1:06 PM CDT | Severe Thunderstorm Warning | GRB | Outagamie, Portage, Waupaca, Waushara, Winnebago | 69 min |
| Jul 16, 1:18 PM CDT | Tornado Warning | GRB | Wood | 27 min |
| Jul 16, 1:31 PM CDT | Severe Thunderstorm Warning | GRB | Calumet, Manitowoc, Outagamie, Winnebago | 59 min |
| Jul 16, 1:38 PM CDT | Severe Thunderstorm Warning | GRB | Shawano | 52 min |
| Jul 16, 1:41 PM CDT | Flash Flood Warning | GRB | Calumet, Outagamie, Portage, Waupaca, Waushara, Winnebago | 2 hr |
| Jul 16, 2:09 PM CDT | Severe Thunderstorm Warning | GRB | Outagamie, Portage, Waupaca, Waushara, Winnebago | 60 min |
| Jul 16, 2:20 PM CDT | Severe Thunderstorm Warning | GRB | Outagamie, Shawano, Waupaca | 55 min |
| Jul 16, 2:30 PM CDT | Severe Thunderstorm Warning | GRB | Brown, Calumet, Manitowoc, Outagamie | 60 min |
| Jul 16, 3:29 PM CDT | Severe Thunderstorm Warning | GRB | Manitowoc | 52 min |
| Jul 16, 4:47 PM CDT | Flash Flood Warning | GRB | Calumet, Manitowoc | 81 min |
Nearby
Flash Flood Warnings in Wisconsin, 2008Every flash flood warning in 2008
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.