ForecastAlert Data Response

This object contains information about severe weather alert (where available). Like all weather data, severe weather alerts are time-sensitive, but are provided with a start and end time by regional authorities.
Note: Some severe weather alerts may have a start time set in the future; that is, the alert may not be active "now", but targets a near-future time window.
All response parameters should be treated as optionally available.


latitude float
The latitude of the request that generated the alert.
longitude float
The longitude of the request that generated the alert.
title string
The title of the severe weather alert.
areaDesc array of strings
An array of text descriptions of affected areas.
severity string
The severity of the weather alert. The value "advisory" indicates that an individual should be aware of potentially severe weather. The value "watch" indicates that an individual should prepare for potentially severe weather. The value "warning" indicates that an individual should take immediate action to protect themselves and others from potentially severe weather.
timeStart integer
The UNIX time at which the alert begins. (GMT timezone)
timeExpires integer
The UNIX time at which the alert is expected to expire. (GMT timezone)
description string
The text description directly provided from the regional authority about the alert.
uri string
A URI link from the regional authority that can be used to see more information.

Sample output

  "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 The Fire Weather Watch is no longer in effect.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": ""