Forecast Grid Data Non-Uniform Valid Time Periods

[aloghides]

If for example, you get forecastGridData values for temperature or probability of precipitation in the forecastGridData endpoint you'll notice that the validTime skips random hours instead of giving hourly data. Is this normal?

Example from my forecast (formatted a bit to make it easier to see the hours):

"validTime": "2020-09-13T 06:00:00+00:00/PT3H",
"validTime": "2020-09-13T 09:00:00+00:00/PT3H",
"validTime": "2020-09-13T 12:00:00+00:00/PT1H",
"validTime": "2020-09-13T 13:00:00+00:00/PT1H",
"validTime": "2020-09-13T 14:00:00+00:00/PT1H",
"validTime": "2020-09-13T 15:00:00+00:00/PT1H",
"validTime": "2020-09-13T 16:00:00+00:00/PT1H",
"validTime": "2020-09-13T 17:00:00+00:00/PT1H",
"validTime": "2020-09-13T 18:00:00+00:00/PT1H",
"validTime": "2020-09-13T 19:00:00+00:00/PT1H",
"validTime": "2020-09-13T 20:00:00+00:00/PT3H",
"validTime": "2020-09-13T 23:00:00+00:00/PT1H",
"validTime": "2020-09-14T 00:00:00+00:00/PT1H",
"validTime": "2020-09-14T 01:00:00+00:00/PT1H",
"validTime": "2020-09-14T 02:00:00+00:00/PT1H",
"validTime": "2020-09-14T 03:00:00+00:00/PT1H",
"validTime": "2020-09-14T 04:00:00+00:00/PT1H",
"validTime": "2020-09-14T 05:00:00+00:00/PT1H",
"validTime": "2020-09-14T 06:00:00+00:00/PT3H",
"validTime": "2020-09-14T 09:00:00+00:00/PT3H",
"validTime": "2020-09-14T 12:00:00+00:00/PT1H",
"validTime": "2020-09-14T 13:00:00+00:00/PT1H",
"validTime": "2020-09-14T 14:00:00+00:00/PT1H",
"validTime": "2020-09-14T 15:00:00+00:00/PT1H",
"validTime": "2020-09-14T 16:00:00+00:00/PT1H",
"validTime": "2020-09-14T 17:00:00+00:00/PT1H",
"validTime": "2020-09-14T 18:00:00+00:00/PT2H",
"validTime": "2020-09-14T 20:00:00+00:00/PT1H",
"validTime": "2020-09-14T 21:00:00+00:00/PT1H",
"validTime": "2020-09-14T 22:00:00+00:00/PT1H",
"validTime": "2020-09-14T 23:00:00+00:00/PT1H"

[jfbauer432]

These are time periods. The "/PT3H" basically means for the next 3 hours.

[aloghides]

Thank you! That makes a lot more sense. I will close this now.