DLH Winter Weather Forecasts

Duluth, MN

Weather Forecast Office

DLH Winter Weather Forecasts

Probabilistic Snowfall Forecasts
Ice Accumulation Forecasts
6-hr Snowfall Forecasts
6-hr Ice Accumulation Forecasts
Onset/End-Timing Graphics
Winter Storm Outlook and Winter Storm Severity Index
Snow and Ice Observations
Medium/Long Range Forecast

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Snow Amount Potential Graphics
Snow Amount Exceedance Graphics
Snowfall Totals by Location

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Snow Amount Potential Experimental - Click here for more information on these products
Expected Snowfall - Official 博体育 Forecast What's this?	High End Amount 1 in 10 Chance (10%) of Higher Snowfall What's this?
	Low End Amount 9 in 10 Chance (90%) of Higher Snowfall What's this?
Low End Amount – 9 in 10 Chance (90%) of Higher Snowfall This map depicts a reasonable lower-end snowfall amount for the time period shown on the graphic, based on many computer model simulations of possible snowfall totals. This lower amount is an unlikely scenario with a 9 in 10, or 90% chance that more snow will fall, and only a 1 in 10, or 10% chance that less snow will fall. This number can help serve as a lower-end scenario for planning purposes. Expected Snowfall - Official 博体育 Forecast This map is the official 博体育 snowfall forecast in inches during the time period shown on the graphic. This snowfall amount is determined by 博体育 forecasters to be the most likely outcome based on evaluation of data from computer models, satellite, radar, and other observations. High End Amount – Only a 1 in 10 Chance (10%) of Higher Snowfall This map depicts a reasonable upper-end snowfall amount for the time period shown on the graphic, based on many computer model simulations of possible snowfall totals. This higher amount is an unlikely scenario, with only a 1 in 10, or 10% chance that more snow will fall, and a 9 in 10, or 90% chance that less snow will fall. This number can help serve as an upper-end scenario for planning purposes.

The purpose of these experimental probabilistic snowfall products is to provide customers and partners a range of snowfall possibilities, in complement to existing 博体育 deterministic snowfall graphics, to better communicate forecast uncertainties during winter weather events. For more information visit this project's , and please provide us your feedback .

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Percent Chance That Snow Amounts Will Be Greater Than...

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Hover over thumbnails below to view larger image.

>=0.1"	>=1"	>=2"	>=4"	>=6"	>=8"	>=12"	>=18"

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Snowfall Totals by Location

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Location	Low-End Amount	Expected Amount	High-End Amount	Chance of Seeing More Than
Location	Low-End Amount	Expected Amount	High-End Amount

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Selected City Charts
Expected Snowfall - Box and Whisker Plot	Expected Snowfall - Exceedance Bar Plot

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Ice Accumulation Potential
Expected Ice Accumulation - Official 博体育 Forecast This is the elevated flat surface ice accumulation. It is not radial/line ice. Radial/line ice is typically 39% of the elevated flat surface ice. For more information on this, see .
What's this?
Most Likely Ice Accumulation Represents our official ice forecast in inches within the next one to three days. The ice accumulation amounts are provided in ranges.

Ice Accumulation Potential

Expected Ice Accumulation - Official 博体育 Forecast

This is the elevated flat surface ice accumulation. It is not radial/line ice. Radial/line ice is typically 39% of the elevated flat surface ice. For more information on this, see .

What's this?

NOTICE: 6-hr ice accumulation images are created only as needed and may not be available at this time.

Onset of Wintry Precipitation	End Timing of Wintry Precipitation
Precipitation Onset/End Timing

What's this?	What's this?
Precipitation Onset Most likely time of winter precipitation onset (snow, sleet, freezing rain). Rain is not included here. This information is provided when we issue a Warning or Advisory for expected snow or ice accumulation; typically six to 24 hours in advance. Times are only given for places that are under a Warning or Advisory. They will be blank in areas outside Warnings or Advisories. Precipitation End Time Most likely time of winter precipitation ending (snow, sleet, freezing rain). Rain is not included here. This information is provided when we issue a Warning or Advisory for expected snow or ice accumulation; typically six to 24 hours in advance. Times are only given for places that are under a Warning or Advisory. They will be blank in areas outside Warnings or Advisories.

Winter Storm Severity Index (WSSI)	Winter Storm Outlook (WSO)

National Snow Reports	National Snowfall Analysis


Local Snow/Ice Reports

Days 4-7 Winter Weather Outlook

Day 4 Winter Weather Outlook	Day 5 Winter Weather Outlook


Day 6 Winter Weather Outlook	Day 7 Winter Weather Outlook



CPC Week-2 Experimental Heavy Snow Risk



CPC Temperature & Precipitation Maps

Days 6-10
Temperature	Precipitation



Days 8-14
TEMPERATURE	PRECIPITATION



Week 3-4
TEMPERATURE	PRECIPITATION