Wisconsin, 2015

Heavy Snow in Wisconsin, April 5 to 6, 2015

April 5 to 6, 2015 · NWS GRB · 3 events in 3 counties and zones

A narrow band of 6 to nearly 10 inches of snow fell across far north central Wisconsin as a low pressure system moved across Illinois. 0 inches at St.

Where it happened

Every event with a place to put it; 3 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.

  • Tornadoes
  • Tropical storms and surge
  • Floods
  • Wind
  • Hail
  • Winter weather
  • Heat and drought
  • Cold
  • Fire, smoke and dust
  • Marine and coastal
  • Other

Open the live radar over this ground

The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
3

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

What happened

The episode as NWS GRB wrote it up.

A narrow band of 6 to nearly 10 inches of snow fell across far north central Wisconsin as a low pressure system moved across Illinois. The highest snowfall totals included 9.9 inches near Argonne (Forest Co.), 9.0 inches at Three Lakes (Oneida Co.), 8.5 inches at Sugar Camp (Oneida Co.), and 8.0 inches at St. Germain and Lac du Flambeau (both in Vilas Co.).

What forecasters said that day

The local office's own words before the first event, 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 the first event at Apr 5, 5:22 PM CST, 5 hours 38 minutes earlier.

Area forecast discussion, Apr 5, 5:22 PM CST, 5 hours 38 minutes before
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Hazardous weather outlook, Apr 5, 2:30 PM CST, 8 hours 30 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREEN BAY WI
330 PM CDT SUN APR 5 2015

WIZ005-010>013-018>022-030-031-035>040-045-048>050-073-074-062030-
VILAS-ONEIDA-FOREST-FLORENCE-NORTHERN MARINETTE-LINCOLN-LANGLADE-
MENOMINEE-NORTHERN OCONTO-DOOR-MARATHON-SHAWANO-WOOD-PORTAGE-
WAUPACA-OUTAGAMIE-BROWN-KEWAUNEE-WAUSHARA-WINNEBAGO-CALUMET-
MANITOWOC-SOUTHERN MARINETTE-SOUTHERN OCONTO-
330 PM CDT SUN APR 5 2015

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL AND NORTHEAST
WISCONSIN.

.DAY ONE...TONIGHT

HAZARDOUS TRAVEL CONDITIONS ARE EXPECTED ACROSS MUCH OF NORTH CENTRAL
AND NORTHEAST WISCONSIN TONIGHT INTO MONDAY MORNING. SNOWFALL
ACCUMULATIONS OF 2 TO 4 INCHES ARE ANTICIPATED NORTH OF A LINE FROM
MERRILL TO WAUSAUKEE...WITH A NARROW BAND OF LOCALLY HIGHER
AMOUNTS POSSIBLE. FREEZING RAIN MAY ALSO PRODUCE A LIGHT GLAZE OF
ICE FROM WAUSAU TO SHAWANO TO STURGEON BAY LATE TONIGHT INTO EARLY
MONDAY MORNING. MOTORISTS WITH TRAVEL PLANS SHOULD CLOSELY MONITOR
THE LATEST FORECASTS.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SUNDAY

HAZARDOUS TRAVEL IS POSSIBLE ACROSS MUCH OF THE REGION MONDAY
NIGHT AS AN AREA OF LOW PRESSURE MOVES ALONG A NEARLY STATIONARY
FRONT OVER ILLINOIS. NORTHERN WISCONSIN MAY SEE AN INCH OR TWO OF
SNOW ACCUMULATION...WHILE PARTS OF CENTRAL AND EAST-CENTRAL
WISCONSIN MAY RECEIVE A WINTRY MIX OF RAIN AND FREEZING RAIN.
PERSONS WITH TRAVEL PLANS MONDAY NIGHT INTO TUESDAY MORNING SHOULD
KEEP ABREAST OF THE LATEST WEATHER INFORMATION AND BE PREPARED FOR
POSSIBLE TRAVEL DIFFICULTIES.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS ARE REQUESTED TO RELAY ANY SNOWFALL OR MIXED PRECIPITATION
REPORTS TO THE NATIONAL WEATHER SERVICE IN GREEN BAY.

LMZ521-522-541>543-062030-
THE BAY OF GREEN BAY SOUTH OF A LINE FROM CEDAR RIVER MI TO ROCK
ISLAND PASSAGE-LAKE MICHIGAN FROM WASHINGTON ISLAND TO SHEBOYGAN-
330 PM CDT SUN APR 5 2015

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHWEST LAKE
MICHIGAN AND THE WATERS OF GREEN BAY.

.DAY ONE...TONIGHT

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SUNDAY

CONDITIONS HAZARDOUS TO SMALL CRAFT ARE POSSIBLE MONDAY NIGHT
THROUGH WEDNESDAY DUE TO A PERSISTENT GUSTY EAST TO NORTHEAST
WIND.

MG/TH

The radar

The national radar mosaic for the moment the first event began.

Open the radar archive at this moment

Event by event

3 heavy snow. Local standard time, as filed.

Heavy Snow, Vilas

When
April 5, 11:00 PM CST to April 6, 8:00 AM CST
Where
Vilas forecast zone
Reported by
COOP Observer
Coordinates
46.053, -89.515 (the zone’s center; the record gives no point)

As much as 8.0 inches of snow fell at St. Germain and Lac du Flambeau in Vilas County.

Heavy Snow, Oneida

When
April 5, 11:00 PM CST to April 6, 8:00 AM CST
Where
Oneida forecast zone
Reported by
COOP Observer
Coordinates
45.706, -89.522 (the zone’s center; the record gives no point)

The highest snowfall totals in Oneida County included 9.0 inches at Three Lakes and 8.5 inches at Sugar Camp.

Heavy Snow, Forest

When
April 5, 11:00 PM CST to April 6, 8:00 AM CST
Where
Forest forecast zone
Reported by
COOP Observer
Coordinates
45.667, -88.770 (the zone’s center; the record gives no point)

Nearly ten inches (9.9 inches) of snow fell near Argonne in Forest County.

What these are

Heavy Snow
Snowfall reaching the local warning threshold without the other hazards of a winter storm.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in Wisconsin in 2015Every state in 2015This day in weather historyWarnings in Wisconsin, April 2015

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-30. Each event’s entry at NCEI: 570762, 570763, 570764.