Alert archive / Wisconsin / Flash Flood Warnings in 2012
Flash Flood Warning 4, NWS Green Bay, WI
NWS Green Bay, WI issued this flash flood warning at Jul 2, 2012, 7:01 PM CDT for Winnebago County, Wisconsin. It was in force for 91 min. 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
- Jul 2, 2012, 7:01 PM CDT (00:01 UTC)
- Expired
- Jul 2, 2012, 8:32 PM CDT
- In force
- 91 min
- Issued by
- NWS Green Bay, WI
- Area
- Storm-based polygon
- Flood severity
- None
County Winnebago County, WI
The radar
The Green Bay radar (KGRB), 60 km from the middle of the area, began a volume at 00:04 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 2, 7:10 PM CDT | FLOOD | Oshkosh, WI | WATER FLOWING PARTS OF WEST HAVEN DRIVE AND WITZEL AVE. |
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, 0.0 hours before the alert went out and 59 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
- 3426 J/kg
- Mixed-layer CIN
- -61 J/kg
- Mixed-layer LCL
- 1137 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 28 m²/s²
- 0-3 km storm-relative helicity
- -2 m²/s²
- Significant tornado parameter
- -0.2
- Supercell composite
- -1.1
The text
As transmitted, in the capitals the NWS used until 2016.
969
WGUS53 KGRB 030001
FFWGRB
WIC139-030300-
/O.NEW.KGRB.FF.W.0004.120703T0001Z-120703T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE GREEN BAY WI
701 PM CDT MON JUL 2 2012
THE NATIONAL WEATHER SERVICE IN GREEN BAY HAS ISSUED A
* FLASH FLOOD WARNING FOR...
WINNEBAGO COUNTY IN EAST CENTRAL WISCONSIN...
* UNTIL 1000 PM CDT
* AT 659 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
SLOW MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE
WARNED AREA. UP 3 INCHES OF RAINFALL IS EXPECTED THIS EVEVING.
* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
OSHKOSH.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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.
A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE.
&&
LAT...LON 4390 8869 4423 8872 4425 8849 4424 8841
4390 8840
$$
TH2 follow-up statements
643
WGUS73 KGRB 030113
FFSGRB
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE GREEN BAY WI
813 PM CDT MON JUL 2 2012
WIC139-030300-
/O.CON.KGRB.FF.W.0004.000000T0000Z-120703T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WINNEBAGO WI-
813 PM CDT MON JUL 2 2012
...FLASH FLOOD WARNING REMAINS IN EFFECT FOR EASTERN WINNEBAGO COUNTY
UNTIL 1000 PM CDT...
AT 808 PM CDT...WEATHER SPOTTERS REPORTED THUNDERSTORMS WITH VERY
HEAVY RAINFALL TRACKED OVER WINNNEBAGO COUNTY EARLIER THIS EVENING.
AT 800 PM CDT...POCKETS OF STREET FLOODING WERE STILL BEING REPORTED
IN THE OSHKOSH VICINITY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
NO ADDITIONAL RAINFALL AMOUNTS ARE EXPECTED THIS EVENING SO FLOODING
AFFECTS WILL CONTINUE TO DIMINISH.
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY.
&&
LAT...LON 4390 8869 4423 8872 4425 8849 4424 8841
4390 8840
$$
TH930
WGUS73 KGRB 030132
FFSGRB
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE GREEN BAY WI
832 PM CDT MON JUL 2 2012
WIC139-030147-
/O.CAN.KGRB.FF.W.0004.000000T0000Z-120703T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WINNEBAGO WI-
832 PM CDT MON JUL 2 2012
...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR WINNEBAGO COUNTY
IS CANCELLED...
EXCESS RUNOFF FROM HEAVY RAIN HAS ENDED OVER THE WARNED AREA. STREAMS
AND CREEKS IN THE WARNED AREA HAVE RECEDED OR WERE BEGINNING TO
RECEDE...ENDING THE FLOOD THREAT. IF FLOODING HAS BEEN OBSERVED...
PLEASE REPORT IT TO YOUR LOCAL LAW ENFORCEMENT AGENCY.
LAT...LON 4390 8869 4423 8872 4425 8849 4424 8841
4390 8840
$$
THThe office that day
Everything else NWS Green Bay, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 2, 7:18 PM CDT | Severe Thunderstorm Warning | GRB | Winnebago | 27 min |
| Jul 2, 7:33 PM CDT | Severe Thunderstorm Warning | GRB | Florence, Forest, Langlade, Marinette, Oconto | 57 min |
| Jul 2, 8:24 PM CDT | Flash Flood Warning | GRB | Forest, Langlade, Oconto | 8 hr |
| Jul 2, 11:09 PM CDT | Severe Thunderstorm Warning | GRB | Oneida, Vilas | 66 min |
| Jul 3, 12:02 AM CDT | Severe Thunderstorm Warning | GRB | Forest | 31 min |
| Jul 3, 12:47 AM CDT | Severe Thunderstorm Warning | GRB | Florence, Forest, Langlade, Marinette, Oconto | 58 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.