WorstForecast Data Response

This object represents the "worst" hourly forecast found within a larger ForecastMatrix based upon the time and distance parameters provided in the query. The response provided will be similar to (but a subset of) the SingleForecast response. No DailyForecast objects will be returned and only a single HourlyForecast will be returned, representing the "worst" forecast found. Output is available in either imperial or metric units.
Severe weather alerts will be returned as normal, although their start/expiration time may not include the time of the "worst" forecast selected.


latitude float
The latitude of the generated forecast.
longitude float
The longitude of the generated forecast.
worstHourlyForecast object
A single HourlyForecast object, with one forecast object generated for each hour. Hourly forecasts are typically available out to 5-7 days ahead.
alerts array of objects
An array of ForecastAlert objects for any active severe weather alerts. This array will often be empty in good weather conditions.

Sample output

  "latitude": 39.526,
  "longitude": -119.813,
  "worstHourlyForecast": {
    "time": 1632682800,
    "summary": "Clear",
    "icon": "clear-day",
    "temperature": 81.6,
    "apparentTemperature": 81.6,
    "precipType": "none",
    "precipProbability": 0,
    "precipIntensity": 0,
    "precipAccumulation": 0,
    "dewPoint": 29.73,
    "humidity": 0.15,
    "pressure": 1013.1,
    "windSpeed": 5.48,
    "windGust": 10.99,
    "windBearing": 198,
    "skyCover": 0.11,
    "visibility": 10,
    "score": 0
  "alerts": [
      "latitude": 39.526,
      "longitude": -119.813,
      "title": "Red Flag Warning",
      "areaDesc": [
        "Northern Sierra Front - Carson City/Douglas/Storey/Southern Washoe/Eastern Lyon/Far Southern Lassen Counties",
        "Southern Sierra Front - Alpine/Northern Mono/Southern Lyon/Western Mineral Counties"
      "severity": "warning",
      "timeStart": 1632765600,
      "timeExpires": 1632830400,
      "description": "...RED FLAG WARNING IN EFFECT FROM 11 AM MONDAY TO 5 AM PDT TUESDAY FOR GUSTY WINDS AND LOW HUMIDITY FOR THE SIERRA FRONT... The National Weather Service in Reno has issued a Red Flag Warning for gusty winds and low humidity, which is in effect from 11 AM Monday to 5 AM PDT Tuesday. The Fire Weather Watch is no longer in effect. * Changes...Upgraded the Fire Weather Watch. Extended timing. * Affected Area...Fire Zone 420 Northern Sierra Front including Carson City, Douglas, Storey, Southern Washoe, Western Lyon, and Far Southern Lassen Counties, Fire Zone 421 Southern Sierra Front including Alpine, Northern Mono, Southern Lyon and and Western Mineral Counties. * Winds...Southwest to West 15 to 25 mph with gusts up to 40 mph. Wind prone areas could see gusts up to 50 mph Monday night. * Humidity...10-15% along and east of US-395. 15-20% west of US- 395. RH will increase Monday night to near 40%. * Duration...3 to 7 hours of critical conditions Monday afternoon. Gusty winds will last for over 18 hours. * Impacts...The combination of gusty winds and low humidity can cause fire to rapidly grow in size and intensity before first responders can contain them.",
      "uri": "https://alerts.weather.gov/cap/wwacapget.php?x=NV1261B9131370.RedFlagWarning.1261B930F0C0NV.REVRFWREV.0d02ac2ef7a3bbad215e02f9784626b5"