Alert archive / Arizona / Winter Storm Warnings
Winter Storm Warnings in Arizona, 2018
5 winter storm warnings in 2018. An alert counts here when it covered any part of the state, so the counties below add up to more than the state. The archive of winter storm warnings reaches back to 2005.
Winter Storm Warnings by county
Each county as a circle sized by its count in 2018. Tap one for its archive.
- Winter Storm Warnings
- 5
- Busiest month
- December4 winter storm warnings
- Busiest day
- December 30, 20182 winter storm warnings
Over time
By month
The alerts
Every alert, in the order issued. Times are local, Mountain Time. Each opens its own page with the text, the map, the radar and the sounding.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 18, 3:37 AM MST | Winter Storm Warning | FGZ | Apache, Coconino, Navajo | 33 hr |
| Dec 27, 5:40 PM MST | Winter Storm Warning | TWC | Cochise, Graham, Pima, Pinal | 11 hr |
| Dec 30, 2:03 PM MST | Winter Storm Warning | TWC | Cochise, Graham, Greenlee, Pima, Pinal | 47 hr |
| Dec 30, 2:32 PM MST | Winter Storm Warning | FGZ | Apache, Coconino, Gila, Navajo | 46 hr |
| Dec 31, 9:17 AM MST | Winter Storm Warning | PSR | Gila, Maricopa, Pinal | 26 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20172019
Sources
National Weather Service watches, warnings, advisories and statements from the Iowa Environmental Mesonet's VTEC archive, which reconstructs tornado, severe thunderstorm, flash flood and marine warnings back to 1986 from the NWS text archive. Storm Prediction Center watches and mesoscale discussions from SPC's archive through the Mesonet. County centers from the US Census Bureau. Warning verification from the Mesonet's Cow. Rebuilt daily.