Supported Global Alerts
The table below lists the alerts supported by the HERE Destination Weather API.
ID | Description |
---|---|
1 | Strong Thunderstorms Anticipated – Strong thunderstorms anticipated during the next 24 hours |
2 | Severe Thunderstorms Anticipated – Severe thunderstorms anticipated during the next 24 hours (supersedes the strong thunderstorm alert) |
3 | Tornadoes Possible – Conditions are favorable for the formation of tornadoes (supersedes the severe thunderstorm alert) |
4 | Heavy Rain Anticipated – More than 1 inch of rain in the next 24 hours (and less than 2 inches) |
5 | Floods Anticipated – More than 2 inches of rain in the next 24 hours |
6 | Flash Floods Anticipated – More than 1 inch of rain in any 6 hour time period (supersedes Flood Alert and Heavy Rain Alert) |
7 | High Winds Anticipated – Winds greater than 35 mph |
8 | Heavy Snow Anticipated – More than 6 inches of snow in a 12-hour period (anytime during the next 24 hours) |
9 | Blizzard Conditions Anticipated – More than 6 inches of snow anticipated with winds greater than 35 mph |
10 | Blowing Snow Anticipated – High winds anticipated with fresh snow on the ground (superseded by Blizzard Alert) |
11 | Freezing Rain Anticipated – Light freezing rain and/or sleet anticipated |
12 | Ice Storm Anticipated – Heavy freezing rain anticipated along with hazardous driving conditions |
13 | Snow Advisory – More than 1 inch of snow anticipated during the next 24 hours (and less than 6 inches) |
14 | Winter Weather Advisory – A mixture of winter-like conditions anticipated |
15 | Heat Advisory – Comfort indices exceeding 110F |
16 | Excessive Heat Alert – comfort indices above 115F with dew points above 80F (supersedes heat advisory) |
17 | Wind Chill Alert – Issued when the wind chill is 20 below zero or lower with a minimum of a 10 mph wind |
18 | Frost Advisory – Freezing temperatures and light winds (only issued during the Spring and Fall for low latitude/ low elevation locations) |
19 | Freeze Advisory – A hard freeze anticipated (only issued during the Spring and Fall for low latitude/ low elevation locations) |
20 | Fog Anticipated – Visibility expected to drop below 1/4 mile |
21 | Dense Fog Anticipated – Visibility expected to drop below 1/8 mile (superSedes Fog Alert) |
22 | Smog Anticipated – Low visibilities and warm temperatures |
30 | Tropical Cyclone Conditions Anticipated – Winds greater than 40 mph with temperatures above 80F and heavy rain |
31 | Hurricane Conditions Anticipated – Winds greater than 75 mph with temperatures above 80F and heavy rain |
32 | Small Craft Advisory Anticipated – Winds greater than 25 mph anticipated |
33 | Gale Warning Anticipated – Winds greater than 35 mph anticipated |
34 | Winds greater than 35 mph anticipated – Winds greater than 50 mph anticipated |
35 | Heavy Surf Advisory – Waves over 15 feet high |
36 | Beach Erosion Advisory – High waves and wind anticipated |