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Customizing requests

command + location + options

While in the field, you can adjust your requested dates, times, and weather model.
Narrowing your requests allows for shorter, faster responses — valuable when communicating by satellite.

1

Pick your dates

By default you get the next 3 days. Add a day, a date, or a range, anywhere after the command.

You send
forecast tomorrow 49.31°N, 123.27°W
command+option+location
Date options
tomorrowtodaynow01/1501/15-01/205 days36 hoursdate all

Any range, up to 10 days ahead. date all returns the maximum range, within your requested times. now returns the 3-hour period closest to the current moment, in place of a date.

Be mindful of making large requests like date all or time all. These create lengthy replies that can take a long time to arrive by satellite.

2

Pick your times

By default you get 7 am to 6 pm on each of your requested days. Request a specific time, time range, or one of the keywords below.

You send
forecast pm 49.31°N, 123.27°W
command+option+location
Time options
pmamdaytimenighttime14:0014000600-1800time all

Any range. time all returns the full 24 hours of each requested day. A specific time returns the nearest available 3-hour period. daytime and nighttime follow sunrise and sunset at the forecast location. All times are local to the requested location.

3

Pick a weather model

By default, you get a blended model, which combines multiple sources for your location and is right for most use cases. Name a specific model to use that instead.

You send
forecast ecmwf 49.31°N, 123.27°W
command+option+location
Model options
ecmwfblendedicongfshrrrhrdpsrdpsgdps

The marine command works with blended and ecmwf only.

ModelBest forSourceCoverageResolutionRange
blendedCombination of the best available models for a given locationOpen-MeteoGlobalVariesVaries
ecmwfStrong all-rounder at any rangeECMWF, EuropeGlobal~25 km10 days
iconGood performance, esp. EuropeDWD, GermanyGlobal~11 km7 days
gfsBroad coverage at lower resolutionNOAA, USGlobal~25 km10 days
hrrrShort-range US, updated frequentlyNOAA, USContinental US3 km2 days
hrdpsShort-range Canadian forecastsEnvironment CanadaCanada2.5 km2 days
rdpsMid-range Canadian forecastsEnvironment CanadaCanada10 km3 days
gdpsLong-range from Env. CanadaEnvironment CanadaGlobal15 km10 days

For short-range precision (12–48 h), use a regional model if available. Otherwise, ecmwf is a strong choice at any range.

4

Mix and match

Combine any options with any forecast command.

You send
marine tomorrow pm ecmwf 49.31°N, 123.27°W
You receive
49.31°N 123.27°W2026-01-16 18:45 UTC-0800MODEL ecmwfMSG 1/2
Your requested model
Narrower request means a shorter, faster response
  • The command must come first; options can be in any order.
  • Skip any options to use the defaults.
  • Options change the current request only. Your next plain forecast is back to your defaults.
  • If a value isn't recognized, label it: date 01/15, time 1400, model ecmwf.
Repeating a request: last
Repeats your previous request exactly: same location, same options, fresh data.
You sent, this morning
forecast tomorrow pm ecmwf 49.31°N, 123.27°W
· · ·
You send now
last
You receive
49.31°N 123.27°WMODEL ecmwfMSG 1/2
Reused location
Your previous options
Change what you want and reuse the rest
last gfslast today amlast 50.11°N, 122.95°W
Anything you add overrides just that part: last gfs is the same request with a different model. All other parts of the last request are reused.
On a satellite messenger, if the device automatically attaches your current coordinates (or an inReach map link), they will replace the location from your previous request.
Units
Prefer °C or °F, mm or in? You can choose your units of measure in Configure before you head into the field.
Configure →
Try it yourself
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