Alert archive / Wisconsin / Flash Flood Warnings in 2008
Flash Flood Warning 4, NWS Green Bay, WI
NWS Green Bay, WI issued this flash flood warning at Jun 12, 2008, 8:38 PM CDT for Calumet County, Manitowoc County, Winnebago County, Wisconsin. It was in force for 4 hr. 1 report 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
- Jun 12, 2008, 8:38 PM CDT (01:38 UTC)
- Expired
- Jun 13, 2008, 12:45 AM CDT
- In force
- 4 hr
- 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), 45 km from the middle of the area, began a volume at 01:40 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 |
|---|---|---|---|
| Jun 12, 9:07 PM CDT | HEAVY RAIN 5.5 | Oshkosh, WI | 5.5 INCHES SO FAR, WITH 1 INCH IN THE PAST 90 MINUTES. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Davenport, (KDVN), launched 00:00Z, 1.6 hours before the alert went out and 338 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
- 3526 J/kg
- Mixed-layer CIN
- -23 J/kg
- Mixed-layer LCL
- 947 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- 192 m²/s²
- 0-3 km storm-relative helicity
- 304 m²/s²
- Significant tornado parameter
- 5.4
- Supercell composite
- 26.7
The text
As transmitted, in the capitals the NWS used until 2016.
000
WGUS53 KGRB 130141
FFWGRB
WIC015-071-139-130545-
/O.NEW.KGRB.FF.W.0004.080613T0138Z-080613T0545Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE GREEN BAY WI
838 PM CDT THU JUN 12 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 1245 AM CDT
* AT 836 PM...DOPPLER RADAR INDICATED THAT THUNDERSTORMS WILL
CONTINUE TO TRAINING OVER THE WARNED AREA.
* LOCATIONS IMPACTED INCLUDE...
VALDERS...TWO CREEKS...ST ANNA...RUSH LAKE...OSHKOSH...MANITOWOC...
LAKE POYGAN...CLEVELAND...CHILTON AND BRILLION.
ANOTHER INCH IS LIKELY IN THE WARNED AREA DURING THE REST OF THE
EVENING. THE MOVEMENT OF THE STORMS WILL RESULT IN MORE RAIN
FALLING OVER AREAS WHICH ALREADY RECEIVED HEAVY RAIN.
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.
LAT...LON 4424 8789 4432 8785 4432 8754 4422 8749
4412 8756 4409 8764 4390 8772 4390 8817
4393 8818 4393 8838 4390 8839 4390 8887
4421 8889 4424 8888
TIME...MOT...LOC 0138Z 180DEG 0KT 4396 8865 4413 8788
$$
TH2 follow-up statements
000
WGUS73 KGRB 130303
FFSGRB
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE GREEN BAY WI
959 PM CDT THU JUN 12 2008
WIC015-071-139-130545-
/O.CON.KGRB.FF.W.0004.000000T0000Z-080613T0545Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MANITOWOC-WINNEBAGO-CALUMET-
959 PM CDT THU JUN 12 2008
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1245 AM CDT FOR
CALUMET...WINNEBAGO AND MANITOWOC COUNTIES...
AT 957 PM...DOPPLER RADAR INDICATED ANOTHER AREA OF THUNDERSTORMS
PRODUCING RAINFALL RATES OF UP TO ONE INCH PER HOUR. THE LEADING
EDGE OF THESE STORMS WAS LOCATED ALONG A LINE EXTENDING FROM 30
MILES SOUTHEAST OF RUSH LAKE TO 7 MILES SOUTHWEST OF RUSH LAKE...OR
ALONG A LINE EXTENDING FROM MAYVILLE TO RIPON. THE STORMS WERE
MOVING NORTHEAST AT 40 MPH.
OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO LAKE
POYGAN...OSHKOSH...ST ANNA...CHILTON...CLEVELAND...BRILLION...
VALDERS...MANITOWOC AND TWO CREEKS.
ANOTHER INCH IS LIKELY IN THE WARNED AREA.
THE MOVEMENT OF THE STORMS WILL RESULT IN MORE RAIN FALLING OVER
AREAS WHICH ALREADY RECEIVED HEAVY RAIN.
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE
UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS
SUBJECT TO FLOODING WHEN WATER BEGINS RISING.
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. MOVE TO HIGHER GROUND.
LAT...LON 4424 8789 4432 8785 4432 8754 4422 8749
4412 8756 4409 8764 4390 8772 4390 8817
4393 8818 4393 8838 4390 8839 4390 8887
4421 8889 4424 8888
TIME...MOT...LOC 0259Z 219DEG 37KT 4356 8850 4385 8891
$$000
WGUS73 KGRB 130431
FFSGRB
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE GREEN BAY WI
1125 PM CDT THU JUN 12 2008
WIC015-071-139-130545-
/O.CON.KGRB.FF.W.0004.000000T0000Z-080613T0545Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MANITOWOC-WINNEBAGO-CALUMET-
1125 PM CDT THU JUN 12 2008
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1245 AM CDT FOR
CALUMET...WINNEBAGO AND MANITOWOC COUNTIES...
AT 1122 PM...DOPPLER RADAR CONTINUED TO INDICATE SCATTERED SHOWERS
AND THUNDERSTORMS MOVING NORTHEAST INTO EAST CENTRAL WISCONSIN.
THE STRONGEST STORMS WERE LOCATED 13 MILES SOUTHEAST OF OSHKOSH...OR
6 MILES NORTHEAST OF NORTH FOND DU LAC...MOVING EAST AT 60 MPH.
OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO ST
ANNA...CHILTON...BRILLION...VALDERS...CLEVELAND...MANITOWOC AND TWO
CREEKS.
RAIN RATES ARE BEGINNING TO DIMINISH AT THIS TIME...WITH THE
ACTIVITY BECOMING MORE SCATTERED. UP TO ANOTHER INCH IS LIKELY IN
THE SOUTHERN PORTION OF THE WARNED AREA TONIGHT...WITH LESSER
AMOUNTS EXPECTED NORTH.
THE MOVEMENT OF THE STORMS WILL RESULT IN MORE RAIN FALLING OVER
AREAS WHICH ALREADY RECEIVED HEAVY RAIN.
EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES
AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS.
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. 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 4424 8789 4432 8785 4432 8754 4422 8749
4412 8756 4409 8764 4390 8772 4390 8817
4393 8818 4393 8838 4390 8839 4390 8887
4421 8889 4424 8888
TIME...MOT...LOC 0425Z 249DEG 54KT 4388 8833
$$
TEThe office that day
Everything else NWS Green Bay, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 12, 7:10 PM CDT | Special Marine Warning | GRB | 76 min | |
| Jun 12, 7:16 PM CDT | Areal Flood Advisory | GRB | Kewaunee | 119 min |
| Jun 12, 8:31 PM CDT | Areal Flood Advisory | GRB | Brown, Door, Kewaunee | 3 hr |
| Jun 12, 9:23 PM CDT | Special Marine Warning | GRB | 67 min | |
| Jun 13, 12:13 AM CDT | Areal Flood Warning | GRB | Calumet, Manitowoc, Winnebago | 6 hr |
| Jun 13, 5:08 AM CDT | River Flood Warning | GRB | Manitowoc | 16 hr |
| Jun 13, 5:34 AM CDT | Areal Flood Warning | GRB | Winnebago | 6 hr |
| Jun 13, 4:27 PM CDT | River Flood Warning | GRB | Brown, Outagamie, Winnebago | 12 hr |
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.