Alert archive / Wisconsin / Flash Flood Warnings in 2012
Flash Flood Warning 3, NWS Green Bay, WI
NWS Green Bay, WI issued this flash flood warning at May 3, 2012, 4:57 AM CDT for Winnebago County, Wisconsin. It was in force for 3 hr. 4 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
- May 3, 2012, 4:57 AM CDT (09:57 UTC)
- Expired
- May 3, 2012, 7:42 AM CDT
- In force
- 3 hr
- Issued by
- NWS Green Bay, WI
- Area
- Storm-based polygon
- Flood severity
- None
County Winnebago County, WI
The radar
The Green Bay radar (KGRB), 59 km from the middle of the area, began a volume at 10:00 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 |
|---|---|---|---|
| May 3, 6:35 AM CDT | HEAVY RAIN 3.85 | 5 Sw Oshkosh, WI | THERE WAS FLOODING AT THE CORNER OF CLAIRIVILLE ROAD AND 20TH STREET IN THE CITY THIS MORNING. |
| May 3, 7:06 AM CDT | HEAVY RAIN 2.75 | Oshkosh, WI | OVERNIGHT THROUGH 7 AM. |
| May 3, 7:15 AM CDT | HEAVY RAIN 3.26 | 2 Sw Omro, WI | |
| May 3, 7:49 AM CDT | HEAVY RAIN 3.35 | 6 S Oshkosh, WI |
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 00:00Z, 10.0 hours before the alert went out and 58 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
- 86 J/kg
- Mixed-layer CIN
- -138 J/kg
- Mixed-layer LCL
- 1790 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- 30 m²/s²
- 0-3 km storm-relative helicity
- 95 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
112
WGUS53 KGRB 030957
FFWGRB
WIC139-031300-
/O.NEW.KGRB.FF.W.0003.120503T0957Z-120503T1300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE GREEN BAY WI
457 AM CDT THU MAY 3 2012
THE NATIONAL WEATHER SERVICE IN GREEN BAY HAS ISSUED A
* FLASH FLOOD WARNING FOR...
WINNEBAGO COUNTY IN EAST CENTRAL WISCONSIN...
* UNTIL 800 AM CDT
* AT 453 AM CDT...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED FLASH
FLOODING ACROSS THE WARNED AREA. LOCAL LAW ENFORCEMENT REPORTED
THAT PARTS OF HIGHWAY 21 NEAR OMRO REMAIN CLOSED DUE TO HIGH WATER.
RADAR INDICATED THAT SHOWERS AND THUNDERSTORMS WILL CONTINUE TO
AFFECT WINNEBAGO COUNTY THROUGH 700 AM...WITH AN ADDITIONAL INCH
OF RAINFALL POSSIBLE.
* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...OSHKOSH
AND OMRO.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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.
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.
TO REPORT FLOODING...HAVE THE NEAREST LAW ENFORCEMENT AGENCY RELAY
YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN GREEN
BAY.
&&
LAT...LON 4424 8841 4403 8848 4390 8846 4390 8888
4410 8887 4424 8860
$$
KALLAS3 follow-up statements
821
WGUS73 KGRB 031045
FFSGRB
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE GREEN BAY WI
545 AM CDT THU MAY 3 2012
WIC139-031300-
/O.CON.KGRB.FF.W.0003.000000T0000Z-120503T1300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WINNEBAGO WI-
545 AM CDT THU MAY 3 2012
...FLASH FLOOD WARNING REMAINS IN EFFECT FOR WINNEBAGO COUNTY UNTIL
800 AM CDT...
AT 540 AM CDT...RADAR INDICATED THAT THE THUNDERSTORMS THAT WERE
PRODUCING THE HEAVY RAIN ACROSS WINNEBAGO COUNTY HAD WEAKENED AND
SHIFTED EAST OF THE AREA. ADDITIONAL SHOWERS AND STORMS WERE
DEVELOPING BACK TO THE WEST AND WILL LIKELY AFFECT THE AREA A LITTLE
LATER THIS MORNING. BUT WINNEBAGO COUNTY SHOULD AT LEAST RECEIVE A
TEMPORARY BREAK IN THE RAIN. IN ADDITION...THE INCOMING STORMS ARE
NOT EXPECTED TO PRODUCE THE PERSISTENT HEAVY RAINS LIKE THE
OVERNIGHT STORMS DID.
HOWEVER...RUNOFF FROM THE OVERNIGHT STORMS WILL CONTINUE TO CAUSE
FLASH FLOODING TO OCCUR AND IT WILL TAKE A LITTLE TIME FOR FLOOD
WATERS TO SUBSIDE. SOME LOCATIONS THAT WILL EXPERIENCE FLASH
FLOODING INCLUDE...OSHKOSH AND RUSH LAKE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
EXCESSIVE RUNOFF WILL CAUSE MINOR FLOODING OF SMALL CREEKS AND
STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES AS WELL
AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS.
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY.
REPORT FLOODING TO THE NEAREST LAW ENFORCEMENT AGENCY SO THAT THEY
MAY TAKE APPROPRIATE ACTION TO CLOSE FLOODED ROADWAYS. THEY WILL
RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE IN GREEN BAY.
&&
LAT...LON 4424 8841 4403 8848 4390 8846 4390 8888
4410 8887 4424 8860
$$
SKOWRONSKI825
WGUS73 KGRB 031148
FFSGRB
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE GREEN BAY WI
648 AM CDT THU MAY 3 2012
WIC139-031300-
/O.CON.KGRB.FF.W.0003.000000T0000Z-120503T1300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WINNEBAGO WI-
648 AM CDT THU MAY 3 2012
...FLASH FLOOD WARNING REMAINS IN EFFECT FOR WINNEBAGO COUNTY UNTIL
800 AM CDT...
AT 645 AM CDT...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED THAT FLASH
FLOODING WAS OCCURRING IN OSHKOSH. HIGHWAY 41 WAS CLOSED FROM HIGHWAY
26 TO HIGHWAY Z. SEVERAL STREETS IN THE CITY OF OSHKOSH REMAIN
FLOODED.
SOME LOCATIONS THAT WILL EXPERIENCE FLASH FLOODING INCLUDE...OSHKOSH
AND RUSH LAKE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE MINOR FLOODING OF SMALL
CREEKS AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES
AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS.
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.
REPORT FLOODING TO THE NEAREST LAW ENFORCEMENT AGENCY SO THAT THEY
MAY TAKE APPROPRIATE ACTION TO CLOSE FLOODED ROADWAYS. THEY WILL
RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE IN GREEN BAY.
&&
LAT...LON 4424 8841 4403 8848 4390 8846 4390 8888
4410 8887 4424 8860
$$
ECKBERG037
WGUS73 KGRB 031242
FFSGRB
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE GREEN BAY WI
742 AM CDT THU MAY 3 2012
WIC139-031256-
/O.CAN.KGRB.FF.W.0003.000000T0000Z-120503T1300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WINNEBAGO WI-
742 AM CDT THU MAY 3 2012
...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR WINNEBAGO COUNTY IS
CANCELLED...
FLOODING CONTINUES FROM THE RAINS WHICH FELL OVERNIGHT. HOWEVER...
WILL A LULL IN THE PRECIPITATION OCCURRING NOW...ADDITIONAL RAPID
RISES IN WATER LEVELS ARE NOT EXPECTED. SO THE FLASH FLOOD WARNING
HAS BEEN REPLACED BY A FLOOD WARNING.
LAT...LON 4424 8841 4403 8848 4390 8846 4390 8888
4410 8887 4424 8860
$$
SKOWRONSKIThe office that day
Everything else NWS Green Bay, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 2, 7:55 PM CDT | Marine Dense Fog Advisory | GRB | 8 hr | |
| May 3, 1:48 AM CDT | Flash Flood Warning | GRB | Winnebago | 3 hr |
| May 3, 2:13 AM CDT | Flash Flood Warning | GRB | Calumet, Manitowoc | 6 hr |
| May 3, 5:58 AM CDT | Severe Thunderstorm Warning | GRB | Vilas | 34 min |
| May 3, 7:40 AM CDT | Areal Flood Warning | GRB | Calumet, Winnebago | 4 hr |
| May 3, 7:58 AM CDT | Severe Thunderstorm Warning | GRB | Portage, Waushara | 47 min |
| May 3, 8:08 AM CDT | Areal Flood Advisory | GRB | Portage, Wood | 114 min |
| May 3, 8:37 AM CDT | Severe Thunderstorm Warning | GRB | Waushara | 25 min |
| May 3, 10:12 AM CDT | Areal Flood Advisory | GRB | Brown, Kewaunee, Manitowoc | 80 min |
| May 3, 10:36 AM CDT | Special Marine Warning | GRB | 71 min |
Nearby
Flash Flood Warnings in Wisconsin, 2012Every flash flood warning in 2012
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.