Alert archive / Frost Advisories
Frost Advisories in the United States, 2018
405 frost advisories in 2018. Each alert counts once, however many counties it covered. The archive of frost advisories reaches back to 2005.
Frost Advisories by state
Each state shaded by its count. Tap a state for its own archive.
- Frost Advisories
- 405
- Busiest month
- October131 frost advisories
- Busiest day
- October 13, 201819 frost advisories
Over time
By month
By state
Every state and territory, with the alerts that covered any part of it. Each state’s page lists every one of them.
- California78
- Kentucky30
- Georgia27
- Maine26
- Indiana25
- Missouri24
- Florida23
- Illinois23
- New York20
- Virginia19
- North Carolina19
- Tennessee19
- Oregon18
- Kansas17
- West Virginia15
- Alabama15
- Pennsylvania14
- South Carolina13
- Minnesota13
- Michigan12
- Ohio12
- Maryland11
- Alaska10
- Arkansas10
- New Hampshire10
- Mississippi9
- North Dakota9
- New Jersey8
- Wisconsin8
- South Dakota8
- Iowa8
- Nebraska8
- Idaho8
- Vermont7
- Oklahoma6
- Texas5
- Wyoming4
- Connecticut4
- Delaware4
- Nevada4
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowThe tornado archiveThe 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.