Local Forecast

Three separate ways to view the same forecast are available; the daily forecast for the next 15 days, the 72 hour forecast shown in hourly format and the 24 hour graph.

Local Forecast

Summary

15 Day

Hourly

RoadCast

Graphs

Animations

Local Forecasts provide hourly and daily forecasts for 2500 locations. These forecasts are frequently updated to provide you with the latest weather information throughout the day.

Summary

The Summary page is available only in the Pavement Forecast, Transportation, Airport Operations and Alberta editions of MxVision WeatherSentry Online®.

The forecast summary is provided.

Summary

A 24 hour forecast is presented in three hour intervals. One segment of observed data is provided. Move between the Table and Graphs view by clicking the tab. The 24 hours of data provided will also include your threshold parameters.

Local Forecast Summary

To enlarge one of the graphics, click it with your cursor. Select the Back button to return to the Summary page from the selected graphic.

Graphics

Note: Graphics are only shown in °F.

 

15 Day Forecast

The data available in the 15 Day local forecast is determined by edition. Not all data is available in all editions of MxVision WeatherSentry Online®.

The 15 Day forecast provides one day of observed data and fifteen days of forecast data. The first 3 days (72 hours) of the forecast data are updated hourly. The remaining days are updated several times a day. For a more detailed forecast of today's outlook view the Hourly Forecast for your location.

  1. Click the Local Forecast Menu option and select 15 Day.

  2. Select a custom location or use the Map icon.
    Location Selection

  3. View the 15 Day forecast and yesterday's observed data.
     

The first day of the15 Day forecast provides an outlook for the rest of the day - from this hour forward, rather than the entire midnight to midnight period (which could include past events). This “looking forward only” approach is useful especially when precipitation is in the forecast.

Note: The low and high temperatures of both actual and feels like represent the daily (midnight to midnight) low/high forecast or observation. It will be the observed low and/or high if it has already occurred, and the forecasted low and/or high if it has not yet reached the expected extreme.

15 Day Forecast

At 7am (shown above) the weather condition showed "All day Snow Likely" with an accumulation of 7-10 inches.

4pm Update

By 4pm (shown above) the weather condition was updated to "PM Snow Likely" for the Rest of Tuesday. The amount of snow in the forecast has also been updated. This is because only the amount of precipitation yet to fall during the Rest of Tuesday is shown in the graphic. The hourly forecast is available for a more detailed hour by hour view.

Forecast data includes:

Condition

Definition

Date

The local date (24 hour midnight to midnight) of the forecast. Note: The first day of the15 Day forecast provides an outlook for the rest of the day - from this hour forward, rather than the entire midnight to midnight period.

Weather Condition

The icon depicting forecast weather conditions.

Weather

The forecast weather conditions.

Temperature Low

The lowest temperature forecast within the 24 hour midnight to midnight period. Shown in degrees Fahrenheit or Celsius. Note: When viewing the first day (or Rest of Day) in the forecast table it is possible that the low temperature has already been met and is therefore an observation rather than a forecast.

Temperature High

The highest temperature forecast within the 24 hour midnight to midnight period. Shown in degrees Fahrenheit or Celsius. Note: When viewing the first day (or Rest of Day) in the forecast table it is possible that the high temperature has already been met and is therefore an observation rather than a forecast.

Feels Like Low

The coolest Feels Like Temperature expected, in degrees Fahrenheit or Celsius. The current heat index is used if over 70°F (21°C) or wind chill if below 50°F (10°C). Note: When viewing the first day (or Rest of Day) in the forecast table it is possible that the low temperature has already been met and is therefore an observation rather than a forecast.

Feels Like High

The warmest Feels Like Temperature expected, shown in degrees Fahrenheit or Celsius. The current heat index is used if over 70°F (21°C) or wind chill if below 50°F (10°C). Note: When viewing the first day (or Rest of Day) in the forecast table it is possible that the high temperature has already been met and is therefore an observation rather than a forecast.

Wet Bulb Low

The lowest Wet Bulb temperature forecast within the 24 hour midnight to midnight period. Available in the Sports, and Turf editions.

Wet Bulb High

The highest Wet Bulb temperature forecast within the 24 hour midnight to midnight period. Available in the Sports, and Turf editions.

Dew Point

The absolute temperature at which the air can no longer hold all of its water vapor, causing condensation into liquid water.

Humidity

The amount of water vapor in the air, shown as a percentage.

Wind Speed

Wind Speed is indicated in miles per hour (mph) or kilometers per hour (km/h). The Wind Energy Edition may use meters per second (m/s) and the Airport Operations Edition may use knots (kts).

Precip Chance

The likelihood that precipitation will occur, shown as a percentage.

Precip Amount - Rain

The amount of rain measured in inches (in) or millimeters (mm) yet to fall in a given 24 hour midnight to midnight period.

Precip Amount - Snow

S - The amount of snow yet to fall in a given 24 hour midnight to midnight period. Snow is measured in inches (in) or centimeters (cm).

Precip Amount - Liquid

L - The liquid equivalent of said snow, measured in inches (in) or millimeters (mm).

Evapotranspiration

The sum of evaporation and plant transpiration from the earth's land surface to atmosphere measured daily.

 

Hourly Forecast

The hourly forecast includes 12 hours of observed conditions and 72 hours forecast data. The forecast will include your threshold parameters.

  1. Select the Local Forecast Menu option and select Hourly.

  2. Select a custom location or use the Map icon.
    Location Selection

  3. View the Hourly forecast and 12 hours of observed data.
    Hourly Forecast

Forecast data includes:

Condition

Definition

Hour

The local time of the observation.

Weather Condition

The icon depicting forecast weather conditions.

Weather

The forecast weather conditions.

Temperature

Current temperature in degrees Fahrenheit or Celsius.

Feels Like

Perceived temperature in degrees Fahrenheit or Celsius. The current heat index is used if over 70°F (21°C) or wind chill if below 50°F (10°C).

Wet Bulb

A measure of perceived heat which predicts the likelihood of heat stress. Fahrenheit or Celsius. Available in the Sports, and Turf editions.

Wind Direction

The Wind Direction indicates the cardinal direction from which the wind originates.

Wind Speed/Gusts

Wind Speed is indicated in miles per hour (mph) or kilometers per hour (km/h). The Wind Energy Edition may use meters per second (m/s) and the Airport Operations Edition may use knots (kts).

Dew Point

The absolute temperature at which the air can no longer hold all of its water vapor, causing condensation into liquid water.

Humidity

The amount of water vapor in the air, shown as a percentage.

Precip Chance

The likelihood that precipitation will occur, shown as a percentage.

Precip Type

The type of precipitation expected to occur. When snow is in the forecast it is further diagnosed as Wet, NRM (Normal) or Dry.

Precip Amount - Rain

The amount of rain measured in inches (in) or millimeters (mm) expected to fall by the end of a three hour period.

Precip Amount - Snow

 

S - The amount of snow expected to fall by the end of a three hour period. Snow is measured in inches (in) or centimeters (cm).
Wet = Temperature Forecast during the snow event is > 26 °F (-3°C)

NRM = Temperature Forecast during the snow event is 19-26 °F (-7 to -3°C)

Dry = Temperature Forecast during the snow event is <19 °F (-7°C)

Precip Amount - Liquid

L - The liquid equivalent of said snow, measured in inches (in) or millimeters (mm).

24 Hr Snow Accumulation

Expected snow accumulation at the end of each hour as determined by current forecast measured in inches (in) or centimeters (cm). Available for the first 24 hours of the forecast. Available only in the Pavement Forecast Transportation, Airport Operations and Alberta editions.

Blowing Snow Potential

Refers to observed and forecast surface snow which may cause pavement hazards. Snow which is currently falling is not taken into consideration. Available only in the Pavement Forecast Transportation, Airport Operations and Alberta editions.

 

RWIS pavement and bridge deck or runway observed conditions, where available, are also provided for up to the past 12 hours within the Hourly Forecast.
RWIS

Not all hourly forecast data is available in all editions of MxVision WeatherSentry Online®.

 

RoadCast® Pavement Forecast

RoadCast® pavement forecasting is an optional service available only in the Pavement Forecast Transportation, Airport Operations and Alberta editions.

Your RoadCast® forecast is included within the first 24 hours of the Hourly forecast. It is a 24 hour forecast designed to assist with anti-icing and winter road and runway maintenance decisions for your specified location and roads.

RoadCast® provides the following to help control chemical costs, improve safety, and make better scheduling decisions:

Pavement Forecast

24 Hr Snow Accumulation

Blowing Snow Potential

Pavement, Runway and Bridge Deck Temperature

Pavement, Runway and Bridge Deck Frost Potential

Treatment Recommendations from FHWA

Customizable Treatment Recommendations

Custom atmospheric forecasts for RoadCast locations

Note: Blowing Snow Potential refers to observed and forecast surface snow which may cause pavement hazards. Snow which is currently falling is not taken into consideration in the Blowing Snow Potential forecast.

Your RoadCast® forecast is included within the first 24 hours of the Local Forecast.

  1. Select the Local Forecast Menu option.

  2. Click the Hourly submenu option.

  3. Select a RoadCast® forecast location and treatment plan from the drop down menus at the top of the page.
    Select Location
    All of your RoadCast® locations are listed in the menu under the heading of RoadCast® Sites. Select a RoadCast location or use the Map icon.
    Note:
    When an RWIS site is associated with a RoadCast point, observed data may also be available in the table. However, not all RoadCast points are associated with an RWIS site and vice versa.

  4. If road conditions warrant action within the next 24 hour period, an orange snowplow will appear in the Treatment Recommendation row. Click the icon to view the recommendations.

RoadCast® forecasts extend 24 hours into the future. Any time the weather scenario changes the snowplow will turn red to notify you of the changing treatment recommendations.

Treatment recommendations include snowplow icons which appear when conditions justify pavement or runway treatment. Click the snowplow icon to view the treatment recommendations. When the forecast conditions have changed sufficiently to warrant an alteration in treatment recommendations the snowplow icon changes from orange to red. If conditions do not justify pavement or runway treatment no snowplow icon will be shown. Custom Treatment Plans can be created under the Settings Menu. Click the snowplow icon to view the treatment recommendations.

RoadCast® data includes:

Condition

Definition

Bridge Temperature

Forecast bridge temperature in degrees Fahrenheit or Celsius. Available only in the Pavement Forecast Transportation and Alberta editions.

Road Temperature

Forecast road temperature in degrees Fahrenheit or Celsius. Available only in the Pavement Forecast Transportation and Alberta editions.

Runway Temperature

Forecast runway temperature in degrees Fahrenheit or Celsius. Available only in the Airport Operations Edition.

Pavement Condition

Forecast condition of road surfaces (parameters vary by location). Available only in the Alberta Edition.

Bridge Frost Potential

Potential for frost on bridge decks (low, moderate, high). Available only in the Pavement Forecast Transportation and Alberta editions.

Road Frost Potential

Potential for frost on roads (low, moderate, high). Available only in the Pavement Forecast Transportation and Alberta editions.

Runway Frost Potential

Potential for frost on runways (low, moderate, high). Available only in the Airport Operations Edition.

Treatment recommendations from FHWA

Industry standard recommendations for the treatment of pavement in adverse weather conditions.

Customizable Treatment Recommendations

Custom treatment plan for pavement management in adverse weather conditions.

 

Graphs

Users of the  Pavement Forecast, Airport Operations and Alberta editions will receive 12 hours of observed data in addition to the 24 hour forecast.

Graphs will include your threshold parameters.

  1. Select the Local Forecast Menu option and click Graphs.

  2. Select a custom location or use the Map icon.
    Location Selection

  3. Check mark the graphs of interest from Meteogram Settings.
    Graphs

  4. Click Save Settings to save the current meteogram list. The next time you view the graphs the saved list will load with current data.

Available graphs:

Parameter

Edition Available

Description

Definition

Air Temperature

All

Line

Forecast temperature in degrees Fahrenheit or Celsius.

Wet Bulb Temperature

Sports and Turf editions

Line

Forecast wet bulb temperature in degrees Fahrenheit or Celsius.

Dew Point

All

Line

Forecast dew point temperature in degrees Fahrenheit or Celsius.

Wind Speed / Gusts

All

Line

Forecast sustained wind speed and forecast wind gusts in miles per hour (mph) or kilometers per hour (km/h). Wind depicted in meters per second (m/s) is available in the Wind Energy Edition. Wind depicted in knots (kts) is available in the Airport Operations Edition.

Blowing Snow Potential

All

Bar

Likelihood of blowing snow (low, medium, high). Refers to observed and forecast surface snow which may cause pavement hazards. Snow which is currently falling is not taken into consideration in the Blowing Snow Potential forecast.

Precipitation Probability

All

Bar

Forecast chance of precipitation.

Precipitation Type Probability

All

Bar

Probability of each of the three precipitation types (rain, snow, ice).

Precipitation Amount

All

Line

Forecast amount of precipitation in hundredths of inches (in) or millimeters (mm).

24 Hr Total Snow  Accumulation

All

Line

Forecast snow accumulation amount in inches (in) or centimeters (cm).

Road Temperature

Pavement Forecast Transportation and Alberta editions

Line

Forecast road temperature in degrees Fahrenheit or Celsius.

Bridge Deck Temperature

Pavement Forecast Transportation and Alberta editions

Line

Forecast bridge deck temperature in degrees Fahrenheit or Celsius.

Runway Temperature

Airport Operations Edition

Line

Forecast runway temperature in degrees Fahrenheit or Celsius.

Road and Bridge Frost Potential

Pavement Forecast Transportation and Alberta editions

Bar

Potential for frost on either bridge decks or roads (low, moderate, high).

Runway Frost Potential

Airport Operations Edition

Bar

Potential for frost on runways (low, moderate, high).

Road Temperature and Dew Point

Pavement Forecast Transportation and Alberta editions

Line

Forecast of both road temperature and dew point as separate lines in degrees Fahrenheit or Celsius. Uses threshold for Road Temperature.

Bridge Temperature and Dew Point

Pavement Forecast Transportation and Alberta editions

Line

Forecasts of both bridge deck temperature and dew point as separate lines in degrees Fahrenheit or Celsius. Uses threshold for Bridge Deck Temperature.

Runway Temperature and Dew Point

Airport Operations Edition

Line

Forecast of both runway temperature and dew point as separate lines in degrees Fahrenheit or Celsius. Uses threshold for Runway Temperature.

 

Animations

View animated forecasts to better visualize when and where selected weather conditions will occur. Access a variety of weather conditions including precipitation, snow, ice and wind. Animation data is always shown in English units.

  1. Select the Local Forecast Menu option and choose Animations.

  2. Select one of the thumbnails to view the graphic.
    Animation

  3. Click the Play icon to view the animation.

The Path graphics provide an animated picture of snow versus rain versus ice over the next 72 hours. Each frame displays the precipitation in inches expected within the next three hours. Accumulation graphics show the totals expected at the end of the 72 hour period.