Alert archive / California / Monterey County

Weather alerts in Monterey County, California, 2014

66 weather alerts in 2014, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Monterey County and its neighbors

Each county as a circle sized by its count in 2014. Tap one for its archive.

Alerts
66
Warnings
13
Watches
6
Advisories
30
Busiest month
December28 alerts
Busiest day
December 12, 20149 alerts

Over time

By month

Warning verification

How often warnings here had a storm report inside them, and how much warning the reports had.

Monterey County, 2014

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings10100%10%
Flash flood warnings8188%617%99 min

Each office's whole area, 2014

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS San Francisco Bay Area, CA: severe thunderstorm warnings30100%60%
NWS San Francisco Bay Area, CA: flash flood warnings20670%3918%52 min

An office's figures cover every county it serves, including across state lines.

Verified by the Iowa Environmental Mesonet's Cow, which matches each storm-based warning with the local storm reports inside its polygon while it was in force, within 15 km of its edge: a tornado warning counts as verified on a tornado report, a severe thunderstorm warning on hail of 1 inch or more, a gust of 58 mph or more, or wind damage, a flash flood warning on a flash flood report. The false alarm ratio is the share of warnings with no such report; "inside a warning" is the probability of detection, the share of reports that fell inside one; lead time runs from the warning's issue to each report inside it, counting zero for a report that came first. A warning with no report is not proof nothing happened: reports come from spotters, the public and damage surveys, and are thin where few people live.

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.

IssuedProductOfficeLasted
Jan 10, 10:24 PM PSTBeach Hazards StatementMTR40 hr
Jan 12, 2:54 AM PSTHigh Surf AdvisoryMTR15 hr
Jan 16, 3:22 PM PSTRed Flag WarningMTR21 hr
Jan 21, 12:20 PM PSTHigh Surf AdvisoryMTR3 days
Jan 22, 1:57 AM PSTRed Flag WarningMTR59 hr
Feb 6, 9:52 AM PSTAreal Flood AdvisoryMTR53 min
Feb 6, 11:41 AM PSTAreal Flood AdvisoryMTR64 min
Feb 11, 2:38 AM PSTDense Fog AdvisoryMTR7 hr
Feb 11, 2:57 PM PSTDense Fog AdvisoryMTR12 hr
Feb 26, 12:39 PM PSTWind AdvisoryMTR12 hr
Feb 27, 3:36 AM PSTHigh Wind WatchMTR8 hr
Feb 27, 11:58 AM PSTWind AdvisoryMTR22 hr
Feb 27, 12:11 PM PSTHigh Surf AdvisoryMTR51 hr
Feb 27, 12:24 PM PSTFlash Flood WatchMTR46 hr
Feb 28, 4:28 AM PSTAreal Flood AdvisoryMTR4 hr
Feb 28, 9:03 AM PSTAreal Flood AdvisoryMTR87 min
Mar 11, 12:30 PM PDTBeach Hazards StatementMTR33 hr
Mar 14, 12:46 PM PDTHigh Surf AdvisoryMTR67 hr
Apr 1, 3:13 AM PDTWinter Weather AdvisoryMTR32 hr
Apr 1, 8:38 AM PDTSpecial Weather StatementMTR37 min
Apr 1, 2:43 PM PDTMesoscale DiscussionSPC3 hr
Apr 5, 2:52 AM PDTBeach Hazards StatementMTR41 hr
Apr 18, 9:55 PM PDTHigh Surf AdvisoryMTR55 hr
May 11, 10:54 AM PDTExcessive Heat WatchMTR25 hr
May 12, 5:08 AM PDTBeach Hazards StatementMTR4 days
May 12, 12:02 PM PDTHeat AdvisoryMTR56 hr
Sep 7, 6:41 AM PDTBeach Hazards StatementMTR11 hr
Oct 1, 8:40 AM PDTHeat AdvisoryMTR60 hr
Oct 3, 10:23 AM PDTHeat AdvisoryMTR35 hr
Oct 3, 8:48 PM PDTBeach Hazards StatementMTR6 hr
Oct 9, 3:52 PM PDTBeach Hazards StatementMTR4 days
Oct 15, 1:34 PM PDTBeach Hazards StatementMTR25 hr
Oct 18, 7:57 PM PDTBeach Hazards StatementMTR3 days
Oct 26, 5:29 PM PDTBeach Hazards StatementMTR12 hr
Nov 1, 1:44 AM PDTBeach Hazards StatementMTR27 hr
Nov 8, 7:46 PM PSTBeach Hazards StatementMTR30 hr
Nov 10, 2:09 AM PSTBeach Hazards StatementMTR8 hr
Nov 10, 1:52 PM PSTBeach Hazards StatementMTR62 hr
Dec 2, 7:39 AM PSTAreal Flood AdvisoryMTR12 hr
Dec 8, 12:54 PM PSTFlash Flood WatchMTR3 days
Dec 8, 1:02 PM PSTHigh Wind WatchMTR25 hr
Dec 8, 2:17 PM PSTHigh Surf AdvisoryMTR4 days
Dec 9, 2:02 PM PSTHigh Wind WarningMTR50 hr
Dec 11, 10:42 AM PSTFlash Flood WarningMTR3 hr
Dec 11, 11:46 AM PSTAreal Flood AdvisoryMTR3 hr
Dec 11, 2:23 PM PSTFlash Flood WarningMTR3 hr
Dec 11, 5:04 PM PSTAreal Flood AdvisoryMTR116 min
Dec 11, 5:51 PM PSTFlash Flood WarningMTR4 hr
Dec 11, 6:45 PM PSTFlash Flood WarningMTR2 hr
Dec 11, 7:03 PM PSTAreal Flood AdvisoryMTR117 min
Dec 11, 8:42 PM PSTFlash Flood WarningMTR2 hr
Dec 11, 9:16 PM PSTAreal Flood AdvisoryMTR3 hr
Dec 11, 9:43 PM PSTFlash Flood WarningMTR2 hr
Dec 11, 10:43 PM PSTFlash Flood WarningMTR6 hr
Dec 12, 9:03 AM PSTAreal Flood AdvisoryMTR18 hr
Dec 14, 1:29 PM PSTFlash Flood WatchMTR25 hr
Dec 15, 1:29 PM PSTAreal Flood AdvisoryMTR4 hr
Dec 15, 1:49 PM PSTAreal Flood AdvisoryMTR86 min
Dec 15, 10:47 PM PSTFlash Flood WarningMTR118 min
Dec 16, 3:33 PM PSTAreal Flood AdvisoryMTR6 hr
Dec 16, 8:27 PM PSTSevere Thunderstorm WarningMTR28 min
Dec 18, 3:32 AM PSTHigh Surf AdvisoryMTR66 hr
Dec 19, 9:15 PM PSTCoastal Flood AdvisoryMTR17 hr
Dec 19, 9:15 PM PSTCoastal Flood AdvisoryMTR4 days
Dec 24, 8:03 AM PSTBeach Hazards StatementMTR10 hr
Dec 26, 2:34 PM PSTFreeze WarningMTR17 hr

By product

Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force nowTornadoes on recordForecastThe radar archive20132015

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.