Alert archive / Wisconsin / Areal Flood Warnings in 2016
Areal Flood Warning 1, NWS Green Bay, WI
NWS Green Bay, WI issued this areal flood warning at Sep 21, 2016, 10:49 PM CDT for Portage County, Waushara County, Wood County, Wisconsin. It was in force for 21 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Sep 21, 2016, 10:49 PM CDT (03:49 UTC)
- Expired
- Sep 22, 2016, 7:45 PM CDT
- In force
- 21 hr
- Issued by
- NWS Green Bay, WI
- Area
- Storm-based polygon
- Flood severity
- None
Counties Portage County, WI, Waushara County, WI, Wood County, WI
The radar
The Green Bay radar (KGRB), 119 km from the middle of the area, began a volume at 03:49 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, 3.8 hours before the alert went out and 120 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2148 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- -29 m²/s²
- 0-3 km storm-relative helicity
- -43 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this areal flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Green Bay, WI wrote its last area forecast discussion before this areal flood warning went out at Sep 21, 10:40 PM CDT, 9 minutes earlier.
Area forecast discussion, Sep 21, 10:40 PM CDT, 9 minutes before
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</html>Hazardous weather outlook, Sep 21, 2:34 PM CDT, 8 hours 15 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GREEN BAY WI 234 PM CDT WED SEP 21 2016 WIZ005-010>013-018>022-030-031-035>040-045-048>050-073-074-221945- VILAS-ONEIDA-FOREST-FLORENCE-NORTHERN MARINETTE COUNTY-LINCOLN- LANGLADE-MENOMINEE-NORTHERN OCONTO COUNTY-DOOR-MARATHON-SHAWANO- WOOD-PORTAGE-WAUPACA-OUTAGAMIE-BROWN-KEWAUNEE-WAUSHARA-WINNEBAGO- CALUMET-MANITOWOC-SOUTHERN MARINETTE COUNTY- SOUTHERN OCONTO COUNTY- 234 PM CDT WED SEP 21 2016 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL AND NORTHEAST WISCONSIN. .DAY ONE...TONIGHT PERIODS OF THUNDERSTORMS ARE EXPECTED TONIGHT AS A WARM FRONT LIFTS NORTH TOWARD THE REGION. THERE IS A MARGINAL RISK FOR THESE STORMS TO BE SEVERE WITH DAMAGING WINDS AND LARGE HAIL, MAINLY OVER CENTRAL WISCONSIN. THESE STORMS WILL ALSO BE CAPABLE OF PRODUCING VERY HEAVY RAINFALL. A FLASH FLOOD WATCH IS IN EFFECT FOR AREAS ALONG AND SOUTH OF A LINE FROM TOMAHAWK, TO GREEN BAY, TO KEWAUNEE. RAINFALL AMOUNTS OF 1 TO 4 INCHES ARE ANTICIPATED ACROSS THE AREA, WITH LOCALLY HIGHER AMOUNTS POSSIBLE. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH WEDNESDAY THE CHANCE OF THUNDERSTORMS WILL CONTINUE ON THURSDAY AND THURSDAY NIGHT, MAINLY OVER CENTRAL AND EAST-CENTRAL WISCONSIN. THE PRIMARY THREAT WILL BE HEAVY RAINFALL AND LOCALIZED FLOODING. THERE IS ALSO A CHANCE OF THUNDERSTORMS FROM FRIDAY THROUGH EARLY NEXT WEEK, BUT THESE STORMS ARE NOT EXPECTED TO BE SEVERE. .SPOTTER INFORMATION STATEMENT... SPOTTERS SHOULD REPORT ANY OCCURRENCES OF WIND DAMAGE OR LARGE HAIL TONIGHT, AS WELL AS ANY RAINFALL AMOUNTS IN EXCESS OF AN INCH OVER THE REMAINDER OF THE WORK WEEK. LMZ521-522-541>543-221945- THE BAY OF GREEN BAY SOUTH OF A LINE FROM CEDAR RIVER MI TO ROCK ISLAND PASSAGE-LAKE MICHIGAN FROM WASHINGTON ISLAND TO SHEBOYGAN- 234 PM CDT WED SEP 21 2016 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHWEST LAKE MICHIGAN AND THE WATERS OF GREEN BAY. .DAY ONE...TONIGHT THUNDERSTORMS MAY POSE A SIGNIFICANT HAZARD TO MARINERS AT TIMES TONIGHT. THESE STORMS WILL ALSO BE CAPABLE OF PRODUCING VERY HEAVY RAINFALL. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH WEDNESDAY THUNDERSTORMS MAY POSE A SIGNIFICANT HAZARD TO MARINERS AT TIMES THURSDAY AND THURSDAY NIGHT. THESE STORMS WILL BE CAPABLE OF PRODUCING HEAVY RAINFALL. ADDITIONAL CHANCES FOR STORMS EXIST FROM FRIDAY THROUGH EARLY NEXT WEEK. THE STORMS MAY CREATE HAZARDOUS CONDITIONS FOR BOATERS. MPC/MG
In the hours before
Special weather statement, Sep 21, 5:27 PM CDT, 5 hours 22 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREEN BAY WI
527 PM CDT WED SEP 21 2016
WIZ030-035-036-212345-
PORTAGE WI-WOOD WI-MARATHON WI-
527 PM CDT WED SEP 21 2016
...THUNDERSTORMS WITH HEAVY RAINFALL ENTERING CENTRAL WISCONSIN...
AT 522 PM CDT...DOPPLER RADAR WAS TRACKING A NEARLY WEST TO EAST
LINE OF STRONG THUNDERSTORMS EXTENDING FROM WEST CENTRAL WISCONSIN
INTO CENTRAL CLARK COUNTY. MOVEMENT WAS EAST AT 15 MPH.
SINCE MOVEMENT OF THE STORMS ARE RELATIVELY SLOW...THE STORMS WILL
BE CAPABLE OF PRODUCE LOCALLY HEAVY RAINFALL. HALF INCH HAIL WILL
ALSO BE POSSIBLE WITH A FEW OF THESE STORMS.
LOCATIONS IMPACTED INCLUDE...
WAUSAU...STEVENS POINT...MARSHFIELD...WESTON...RIB MOUNTAIN...
MOSINEE...ABBOTSFORD...SPENCER...WHITING AND BEVENT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TORRENTIAL RAINFALL IS POSSIBLE WITH THESE STORMS...AND MAY LEAD TO
LOCALIZED FLOODING. MOTORISTS SHOULD BE PREPARED FOR REDUCED
VISIBILITIES AND PONDING OF WATER ON AREA ROADWAYS.
&&
LAT...LON 4503 9031 4504 9020 4512 9020 4512 8926
4447 8924 4452 9032
TIME...MOT...LOC 2222Z 272DEG 14KT 4506 9030 4460 9031
TDHSpecial weather statement, Sep 21, 8:52 PM CDT, 1 hour 57 minutes before
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</html>Local storm report, Sep 21, 9:40 PM CDT, 1 hour 9 minutes before
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</html>Local storm report, Sep 21, 9:46 PM CDT, 1 hour 3 minutes before
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</html>The office that day
Everything else NWS Green Bay, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 21, 8:04 PM CDT | Flash Flood Warning | GRB | Wood | 4 hr |
| Sep 21, 8:52 PM CDT | Special Weather Statement | GRB | Wood | 38 min |
| Sep 22, 7:58 AM CDT | River Flood Warning | GRB | Wood | 42 hr |
Nearby
Areal Flood Warnings in Wisconsin, 2016Every areal flood warning in 2016
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.