Alert archive / California / Excessive Heat Warnings

Excessive Heat Warnings in California, 2016

21 excessive heat warnings in 2016. 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 excessive heat warnings reaches back to 2005.

Excessive Heat Warnings by county

Each county as a circle sized by its count in 2016. Tap one for its archive.

Excessive Heat Warnings
21
Busiest month
June9 excessive heat warnings
Busiest day
June 16, 20163 excessive heat warnings

Over time

By month

The alerts

Every alert, in the order issued. Times are local, Pacific Time. Each opens its own page with the text, the map, the radar and the sounding.

IssuedProductOfficeCountiesLasted
May 31, 2:09 PM PDTExcessive Heat WarningVEFInyo, San Bernardino5 days
May 31, 2:21 PM PDTExcessive Heat WarningPSR6 days
Jun 1, 1:36 PM PDTExcessive Heat WarningSGXRiverside, San Bernardino, San Diego4 days
Jun 6, 1:45 AM PDTExcessive Heat WarningVEFInyo, San Bernardino66 hr
Jun 16, 2:45 AM PDTExcessive Heat WarningVEFInyo, San Bernardino7 days
Jun 16, 5:09 AM PDTExcessive Heat WarningPSR8 days
Jun 16, 1:17 PM PDTExcessive Heat WarningSGXOrange, Riverside, San Bernardino, San Diego6 days
Jun 17, 2:06 PM PDTExcessive Heat WarningLOXLos Angeles4 days
Jun 18, 2:24 AM PDTExcessive Heat WarningHNX4 days
Jun 27, 2:20 AM PDTExcessive Heat WarningLOXLos Angeles12 hr
Jun 29, 2:48 AM PDTExcessive Heat WarningPSR17 hr
Jul 21, 2:24 AM PDTExcessive Heat WarningPSR66 hr
Jul 21, 5:55 PM PDTExcessive Heat WarningLOXLos Angeles50 hr
Jul 27, 2:21 AM PDTExcessive Heat WarningVEFInyo, San Bernardino66 hr
Jul 27, 3:19 AM PDTExcessive Heat WarningPSR44 hr
Jul 29, 2:42 AM PDTExcessive Heat WarningHNX17 hr
Jul 29, 1:09 PM PDTExcessive Heat WarningHNX31 hr
Jul 30, 2:25 PM PDTExcessive Heat WarningHNX30 hr
Aug 15, 8:33 AM PDTExcessive Heat WarningPSR11 hr
Aug 15, 12:57 PM PDTExcessive Heat WarningPSR31 hr
Aug 16, 9:17 PM PDTExcessive Heat WarningPSR23 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.

  1. June 16, 20163excessive heat warnings
  2. May 31, 20162excessive heat warnings
  3. July 27, 20162excessive heat warnings
  4. July 29, 20162excessive heat warnings
  5. August 15, 20162excessive heat warnings
  6. June 1, 20161excessive heat warnings
  7. June 6, 20161excessive heat warnings
  8. June 17, 20161excessive heat warnings
  9. June 18, 20161excessive heat warnings
  10. June 27, 20161excessive heat warnings
  11. June 29, 20161excessive heat warnings
  12. July 21, 20161excessive heat warnings

Nearby

Alerts in force nowTornadoes on recordThe radar archive20152017

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.