博体育

博体育

Indianapolis, IN

Weather Forecast Office

Probabilistic Snow Experiment data

Weather.gov > Indianapolis, IN > Probabilistic Snow Experiment data

Snow Amount Potential
Experimental -
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 .
Percent Chance That Snow Amounts Will Be Greater Than...
Experimental -
What's this?

Percent Chance That Snow Amounts Will Be Greater Than

 

This series of maps shows the probability (that is, the likelihood) that snowfall will equal or exceed specific amounts during the time period shown on the graphic. These forecasts are based on many computer model simulations of possible snowfall totals.
Hover over thumbnails below to view larger image.
>=0.1"
>=1"
>=2"
>=4"
>=6"
>=8"
>=12"
>=18"

Snowfall Totals by Location
Experimental -
What's this?

Snowfall Totals by Location

 

These tables show the snowfall forecast for individual locations, and provide the same information as the graphics on this web page, just shown in a different way. All of these values are valid for the same time period as depicted on the graphics.

 

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

Selected City Charts
Expected Snowfall - Box and Whisker Plot
box and whisker 		Expected Snowfall - Exceedance Bar Plot
exceedance bar
 
Snow Amount Potential
Experimental -
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 .
Percent Chance That Snow Amounts Will Be Greater Than...
Experimental -
What's this?

Percent Chance That Snow Amounts Will Be Greater Than

 

This series of maps shows the probability (that is, the likelihood) that snowfall will equal or exceed specific amounts during the time period shown on the graphic. These forecasts are based on many computer model simulations of possible snowfall totals.
Hover over thumbnails below to view larger image.
>=0.1"
>=1"
>=2"
>=4"
>=6"
>=8"
>=12"
>=18"
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 .
Most Likely Ice Accumulation

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 .
Most Likely Ice Accumulation

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.
Precipitation Onset/End Timing
Onset of Wintry Precipitation End Timing of Wintry Precipitation
Winter Precipitation Onset
Winter Precipitation End Time
Onset of Wintry Precipitation - Indiana End Timing of Wintry Precipitation - Indiana
Winter Precipitation Onset
Winter Precipitation End Time
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
National Snow Reports
 
Local Snow Reports
Latest snow report
Days 4-7 Winter Weather Outlook
 
Day 4 Winter Weather Outlook Day 5 Winter Weather Outlook
Day 4 Winter Weather Outlook Day 5 Winter Weather Outlook
 
Day 6 Winter Weather Outlook Day 7 Winter Weather Outlook
Day 6 Winter Weather Outlook Day 7 Winter Weather Outlook


 
CPC Week-2 Experimental Heavy Snow Risk
 
CPC Week-2 Experimental Heavy Snow Risk
 
CPC Temperature & Precipitation Maps
 

Days 6-10
Temperature  Precipitation
6-10 day temperature 6-10 day precipitation
 
 

Days 8-14
TEMPERATURE  PRECIPITATION
8-14 day temperature 8-14 day precipitation
 
 

Week 3-4

TEMPERATURE

PRECIPITATION
Week 3-4 Temperature Week 3-4 precipitation
Snow Character/Type for Central Indiana
Describes the character or type of snow if any snow is expected...
 
What's this?

Describes the character or type of snow if any snow is expected

 

This series of maps shows the snow character or type (Heavy and wet vs. dry and fluffy) that snowfall will be observed if any snowfall is expected during the time period shown on the graphic. These forecasts are based on many computer model simulations of possible snow character or type.
Hover over thumbnails below to view larger image.
0 to 6 Hours
>=0.1" 		6 to 12 Hours
>=1" 		12 to 18 Hours
>=2" 		18 to 24 Hours
>=4" 		24 to 30 Hours
>=6" 		30 to 36 Hours
>=8" 		36 to 42 Hours
>=12" 		42 to 48 Hours
>=18"
 
 
 
Snow Character/Type for Central Indiana
Hover over thumbnails below to view larger image.
0 to 6 Hours
>=0.1" 		6 to 12 Hours
>=1" 		12 to 18 Hours
>=2" 		18 to 24 Hours
>=4" 		24 to 30 Hours
>=6" 		30 to 36 Hours
>=8" 		36 to 42 Hours
>=12" 		42 to 48 Hours
>=18"
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