Alert archive / California / Siskiyou County

Weather alerts in Siskiyou County, California, 2017

255 weather alerts in 2017, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Siskiyou County and its neighbors

Each county as a circle sized by its count in 2017. Tap one for its archive.

Alerts
255
Warnings
92
Watches
57
Advisories
83
Busiest month
February41 alerts
Busiest day
May 5, 20178 alerts

Over time

By month

Warning verification

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

Siskiyou County, 2017

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings220100%10%
Flash flood warnings30100%10%

Each office's whole area, 2017

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Medford, OR: tornado warnings20100%0
NWS Medford, OR: severe thunderstorm warnings41783%2245%20 min
NWS Medford, OR: flash flood warnings30100%40%

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 2, 3:48 AM PSTWinter Storm WatchMFR10 hr
Jan 2, 1:36 PM PSTWinter Storm WarningMFR49 hr
Jan 2, 1:36 PM PSTWinter Weather AdvisoryMFR44 hr
Jan 6, 3:12 AM PSTWinter Storm WatchMFR12 hr
Jan 6, 2:50 PM PSTWinter Storm WarningMFR31 hr
Jan 6, 4:02 PM PSTFlood WatchMFR53 hr
Jan 7, 2:30 PM PSTWinter Weather AdvisoryMFR7 hr
Jan 8, 1:28 AM PSTFreezing Fog AdvisoryMFR6 hr
Jan 8, 2:42 AM PSTWinter Storm WatchMFR11 hr
Jan 8, 9:18 AM PSTAreal Flood WarningMFR6 hr
Jan 8, 2:11 PM PSTWinter Storm WarningMFR62 hr
Jan 8, 2:11 PM PSTWinter Weather AdvisoryMFR3 days
Jan 8, 2:16 PM PSTAreal Flood AdvisoryMFR58 hr
Jan 9, 2:27 AM PSTHigh Wind WatchMFR12 hr
Jan 9, 2:47 AM PSTFlood WatchMFR20 hr
Jan 9, 2:34 PM PSTHigh Wind WarningMFR25 hr
Jan 9, 2:34 PM PSTWind AdvisoryMFR31 hr
Jan 10, 4:20 AM PSTWinter Weather AdvisoryMFR6 hr
Jan 16, 2:03 PM PSTHigh Wind WarningMFR60 hr
Jan 16, 2:03 PM PSTWind AdvisoryMFR60 hr
Jan 16, 2:03 PM PSTWinter Storm WatchMFR14 hr
Jan 17, 2:31 AM PSTFlood WatchMFR48 hr
Jan 17, 3:35 AM PSTWinter Storm WarningMFR45 hr
Jan 17, 3:35 AM PSTWinter Weather AdvisoryMFR53 hr
Jan 19, 12:17 AM PSTWinter Storm WatchMFR3 hr
Jan 19, 3:07 AM PSTWinter Storm WarningMFR37 hr
Jan 19, 2:07 PM PSTHigh Wind WatchMFR37 hr
Jan 19, 2:42 PM PSTWinter Storm WatchMFR24 hr
Jan 19, 2:42 PM PSTWinter Weather AdvisoryMFR25 hr
Jan 20, 2:45 PM PSTWinter Storm WarningMFR48 hr
Jan 20, 2:45 PM PSTWinter Weather AdvisoryMFR48 hr
Jan 20, 2:46 PM PSTHigh Wind WarningMFR48 hr
Jan 20, 5:58 PM PSTWinter Weather AdvisoryMFR17 hr
Jan 21, 2:41 AM PSTWind AdvisoryMFR27 hr
Jan 22, 3:00 PM PSTWinter Weather AdvisoryMFR19 hr
Jan 22, 4:52 PM PSTSpecial Weather StatementMFR83 min
Jan 22, 5:51 PM PSTWinter Storm WarningMFR4 hr
Jan 31, 1:54 PM PSTWinter Weather AdvisoryMFR5 days
Feb 1, 4:17 AM PSTWinter Storm WatchMFR10 hr
Feb 2, 1:18 PM PSTHigh Wind WarningMFR31 hr
Feb 2, 1:18 PM PSTWind AdvisoryMFR54 hr
Feb 4, 2:17 AM PSTHigh Wind WatchMFR11 hr
Feb 4, 1:16 PM PSTHigh Wind WarningMFR48 hr
Feb 4, 1:16 PM PSTWind AdvisoryMFR48 hr
Feb 5, 3:05 AM PSTWinter Weather AdvisoryMFR31 hr
Feb 6, 2:22 AM PSTWinter Weather AdvisoryMFR32 hr
Feb 6, 1:52 PM PSTWinter Storm WarningMFR20 hr
Feb 7, 3:18 AM PSTHigh Wind WatchMFR12 hr
Feb 7, 4:20 AM PSTFlood WatchMFR62 hr
Feb 7, 8:37 AM PSTRiver Flood WatchMFR30 hr
Feb 7, 8:37 AM PSTRiver Flood WatchMFR30 hr
Feb 7, 3:18 PM PSTHigh Wind WarningMFR51 hr
Feb 7, 3:18 PM PSTWind AdvisoryMFR51 hr
Feb 7, 4:58 PM PSTFlash Flood WatchMFR47 hr
Feb 8, 2:01 PM PSTRiver Flood WarningMFR62 hr
Feb 8, 2:01 PM PSTRiver Flood WarningMFR60 hr
Feb 9, 2:46 AM PSTAreal Flood AdvisoryMFR12 hr
Feb 9, 11:31 AM PSTAreal Flood WarningMFR9 hr
Feb 9, 2:52 PM PSTAreal Flood AdvisoryMFR3 hr
Feb 9, 5:55 PM PSTAreal Flood AdvisoryMFR3 hr
Feb 13, 2:36 AM PSTHigh Wind WatchMFR25 hr
Feb 14, 3:15 AM PSTHigh Wind WarningMFR55 hr
Feb 14, 3:15 AM PSTWind AdvisoryMFR64 hr
Feb 16, 12:37 AM PSTAreal Flood AdvisoryMFR6 hr
Feb 17, 2:43 PM PSTWinter Weather AdvisoryMFR19 hr
Feb 18, 10:35 AM PSTWind AdvisoryMFR3 days
Feb 18, 3:06 PM PSTWinter Weather AdvisoryMFR19 hr
Feb 19, 3:32 AM PSTHigh Wind WatchMFR11 hr
Feb 19, 1:48 PM PSTWinter Storm WarningMFR44 hr
Feb 19, 2:00 PM PSTFlood WatchMFR43 hr
Feb 19, 2:34 PM PSTHigh Wind WatchMFR6 hr
Feb 19, 9:02 PM PSTHigh Wind WarningMFR31 hr
Feb 19, 9:02 PM PSTWind AdvisoryMFR34 hr
Feb 20, 12:27 AM PSTRiver Flood WatchMFR16 hr
Feb 20, 2:35 AM PSTWinter Weather AdvisoryMFR70 hr
Feb 22, 3:50 PM PSTWinter Storm WatchMFR22 hr
Feb 23, 2:09 PM PSTWinter Storm WarningMFR35 hr
Feb 23, 2:09 PM PSTWinter Weather AdvisoryMFR37 hr
Feb 25, 3:19 AM PSTWinter Weather AdvisoryMFR49 hr
Mar 2, 2:44 AM PSTWinter Storm WatchMFR3 days
Mar 3, 3:58 PM PSTWinter Weather AdvisoryMFR4 days
Mar 5, 3:53 AM PSTWinter Storm WarningMFR36 hr
Mar 6, 3:03 PM PSTWind AdvisoryMFR36 hr
Mar 17, 2:46 AM PDTWind AdvisoryMFR38 hr
Mar 20, 2:11 PM PDTWind AdvisoryMFR6 hr
Mar 22, 3:08 PM PDTWind AdvisoryMFR47 hr
Mar 22, 3:08 PM PDTWinter Weather AdvisoryMFR47 hr
Mar 26, 2:41 AM PDTWind AdvisoryMFR17 hr
Apr 4, 2:35 PM PDTHigh Wind WatchMFR23 hr
Apr 4, 2:35 PM PDTWind AdvisoryMFR3 days
Apr 5, 1:51 PM PDTHigh Wind WarningMFR54 hr
Apr 6, 2:21 AM PDTWinter Storm WatchMFR12 hr
Apr 6, 2:26 PM PDTWinter Storm WarningMFR38 hr
Apr 6, 2:26 PM PDTWinter Weather AdvisoryMFR8 hr
Apr 7, 10:18 AM PDTWinter Weather AdvisoryMFR25 hr
Apr 10, 1:50 PM PDTHigh Wind WatchMFR14 hr
Apr 11, 3:25 AM PDTHigh Wind WarningMFR24 hr
Apr 11, 3:25 AM PDTWind AdvisoryMFR29 hr
Apr 11, 3:15 PM PDTWinter Weather AdvisoryMFR32 hr
Apr 12, 2:28 PM PDTWind AdvisoryMFR12 hr
Apr 16, 10:29 AM PDTWind AdvisoryMFR10 hr
May 4, 6:09 PM PDTSpecial Weather StatementMFR36 min
May 4, 6:27 PM PDTSpecial Weather StatementMFR33 min
May 4, 7:09 PM PDTSpecial Weather StatementMFR36 min
May 4, 7:13 PM PDTSevere Thunderstorm WarningMFR21 min
May 4, 8:09 PM PDTSevere Thunderstorm WarningMFR20 min
May 4, 8:37 PM PDTSpecial Weather StatementMFR23 min
May 4, 8:47 PM PDTSevere Thunderstorm WarningMFR28 min
May 4, 9:20 PM PDTSpecial Weather StatementMFR25 min
May 10, 2:35 AM PDTWind AdvisoryMFR41 hr
May 16, 9:28 PM PDTFrost AdvisoryMFR11 hr
Jun 4, 9:40 AM PDTFrost AdvisoryMFR21 hr
Jun 6, 2:11 PM PDTWind AdvisoryMFR51 hr
Jun 11, 2:25 PM PDTFreeze WatchMFR12 hr
Jun 12, 2:32 AM PDTFrost AdvisoryMFR29 hr
Jun 12, 2:32 AM PDTFreeze WarningMFR29 hr
Jun 13, 2:33 PM PDTFrost AdvisoryMFR17 hr
Jun 19, 6:51 PM PDTSpecial Weather StatementMFR39 min
Jun 19, 7:05 PM PDTSevere Thunderstorm WarningMFR20 min
Jun 19, 7:14 PM PDTFlash Flood WarningMFR3 hr
Jun 19, 7:50 PM PDTFlash Flood WarningMFR2 hr
Jun 19, 7:53 PM PDTSevere Thunderstorm WarningMFR52 min
Jun 19, 8:44 PM PDTSevere Thunderstorm WarningMFR28 min
Jun 22, 3:00 PM PDTExcessive Heat WarningMFR3 days
Jun 22, 3:00 PM PDTHeat AdvisoryMFR3 days
Jun 23, 2:02 PM PDTFire Weather WatchMFR48 hr
Jun 24, 1:40 PM PDTRed Flag WarningMFR56 hr
Jun 25, 2:42 PM PDTSevere Thunderstorm WarningMFR33 min
Jun 25, 4:01 PM PDTSevere Thunderstorm WarningMFR29 min
Jun 25, 4:29 PM PDTSevere Thunderstorm WarningMFR31 min
Jun 25, 4:33 PM PDTSevere Thunderstorm WarningMFR14 min
Jun 25, 4:43 PM PDTAreal Flood AdvisoryMFR3 hr
Jun 25, 5:01 PM PDTSevere Thunderstorm WarningMFR29 min
Jun 25, 5:03 PM PDTSevere Thunderstorm WarningMFR27 min
Jun 25, 5:34 PM PDTFlash Flood WarningMFR86 min
Jun 25, 6:02 PM PDTSevere Thunderstorm WarningMFR43 min
Jun 25, 6:22 PM PDTSevere Thunderstorm WarningMFR38 min
Jun 26, 7:40 PM PDTSevere Thunderstorm WarningMFR50 min
Jul 3, 2:26 PM PDTRed Flag WarningMFR30 hr
Jul 3, 2:26 PM PDTRed Flag WarningMFR54 hr
Jul 5, 5:02 AM PDTFire Weather WatchMFR22 hr
Jul 6, 2:42 AM PDTRed Flag WarningMFR18 hr
Jul 16, 2:13 PM PDTFire Weather WatchMFR24 hr
Jul 16, 2:13 PM PDTRed Flag WarningMFR30 hr
Jul 17, 2:26 PM PDTRed Flag WarningMFR31 hr
Jul 22, 5:10 AM PDTFire Weather WatchMFR33 hr
Jul 23, 2:30 PM PDTFire Weather WatchMFR24 hr
Jul 23, 2:30 PM PDTRed Flag WarningMFR56 hr
Jul 24, 2:30 PM PDTFire Weather WatchMFR24 hr
Jul 25, 4:57 AM PDTRed Flag WarningMFR18 hr
Jul 25, 4:57 AM PDTRed Flag WarningMFR18 hr
Jul 25, 2:18 PM PDTSevere Thunderstorm WarningMFR27 min
Jul 25, 4:20 PM PDTSpecial Weather StatementMFR25 min
Jul 25, 4:28 PM PDTSpecial Weather StatementMFR32 min
Jul 25, 4:43 PM PDTSpecial Weather StatementMFR47 min
Jul 25, 5:20 PM PDTAreal Flood AdvisoryMFR115 min
Jul 25, 5:46 PM PDTSevere Thunderstorm WarningMFR29 min
Jul 25, 10:53 PM PDTRed Flag WarningMFR22 hr
Jul 28, 2:27 PM PDTExcessive Heat WatchMFR37 hr
Jul 30, 3:47 AM PDTExcessive Heat WarningMFR6 days
Jul 30, 3:47 AM PDTHeat AdvisoryMFR6 days
Aug 4, 2:23 PM PDTFire Weather WatchMFR24 hr
Aug 5, 2:13 PM PDTFire Weather WatchMFR24 hr
Aug 5, 2:13 PM PDTRed Flag WarningMFR30 hr
Aug 6, 2:30 PM PDTFire Weather WatchMFR24 hr
Aug 6, 2:30 PM PDTRed Flag WarningMFR30 hr
Aug 6, 4:04 PM PDTSpecial Weather StatementEKA26 min
Aug 6, 4:39 PM PDTSpecial Weather StatementEKA21 min
Aug 6, 4:57 PM PDTSpecial Weather StatementEKA33 min
Aug 7, 2:16 PM PDTFire Weather WatchMFR24 hr
Aug 7, 2:16 PM PDTRed Flag WarningMFR32 hr
Aug 8, 2:18 PM PDTFire Weather WatchMFR23 hr
Aug 8, 2:18 PM PDTRed Flag WarningMFR32 hr
Aug 9, 1:02 PM PDTRed Flag WarningMFR33 hr
Aug 9, 4:30 PM PDTSpecial Weather StatementMFR45 min
Aug 9, 5:08 PM PDTSevere Thunderstorm WarningMFR37 min
Aug 9, 5:35 PM PDTSpecial Weather StatementMFR25 min
Aug 10, 5:17 PM PDTSevere Thunderstorm WarningMFR28 min
Aug 10, 6:33 PM PDTSpecial Weather StatementMFR27 min
Aug 10, 6:35 PM PDTSevere Thunderstorm WarningMFR25 min
Aug 21, 4:18 AM PDTFire Weather WatchMFR10 hr
Aug 21, 2:13 PM PDTFire Weather WatchMFR25 hr
Aug 21, 2:13 PM PDTRed Flag WarningMFR33 hr
Aug 22, 9:10 AM PDTFlash Flood WatchMFR14 hr
Aug 22, 2:45 PM PDTSpecial Weather StatementMFR30 min
Aug 22, 2:55 PM PDTSevere Thunderstorm WarningMFR35 min
Aug 22, 3:36 PM PDTSevere Thunderstorm WarningMFR24 min
Aug 22, 3:47 PM PDTSpecial Weather StatementEKA13 min
Aug 22, 4:30 PM PDTSpecial Weather StatementEKA15 min
Aug 22, 4:32 PM PDTSpecial Weather StatementMFR28 min
Aug 22, 10:19 PM PDTSpecial Weather StatementMFR26 min
Aug 24, 1:38 PM PDTDense Smoke AdvisoryMFR21 hr
Aug 24, 10:00 PM PDTRed Flag WarningMFR47 hr
Aug 25, 3:01 PM PDTFire Weather WatchMFR22 hr
Aug 26, 1:12 PM PDTRed Flag WarningMFR32 hr
Aug 28, 2:09 PM PDTDense Smoke AdvisoryMFR46 hr
Aug 30, 1:44 PM PDTExcessive Heat WatchMFR24 hr
Aug 30, 2:45 PM PDTRed Flag WarningMFR42 hr
Aug 31, 1:23 PM PDTExcessive Heat WarningMFR58 hr
Aug 31, 1:23 PM PDTHeat AdvisoryMFR4 days
Sep 2, 2:00 PM PDTFire Weather WatchMFR13 hr
Sep 2, 11:23 PM PDTDense Smoke AdvisoryMFR5 days
Sep 3, 3:09 AM PDTRed Flag WarningMFR30 hr
Sep 4, 1:51 PM PDTFire Weather WatchMFR24 hr
Sep 5, 2:07 PM PDTRed Flag WarningMFR51 hr
Sep 5, 9:14 PM PDTSpecial Weather StatementMFR46 min
Sep 5, 9:18 PM PDTWind AdvisoryMFR3 hr
Sep 6, 9:54 AM PDTFlash Flood WatchMFR31 hr
Sep 6, 2:14 PM PDTMesoscale DiscussionSPC61 min
Sep 11, 3:12 AM PDTFire Weather WatchMFR12 hr
Sep 11, 2:44 PM PDTRed Flag WarningMFR29 hr
Sep 14, 3:34 AM PDTFreeze WarningMFR28 hr
Sep 14, 4:04 PM PDTFrost AdvisoryMFR16 hr
Sep 15, 9:57 AM PDTFrost AdvisoryMFR22 hr
Sep 15, 9:57 AM PDTFreeze WarningMFR22 hr
Sep 20, 4:32 AM PDTFrost AdvisoryMFR28 hr
Sep 20, 4:32 AM PDTFreeze WarningMFR28 hr
Sep 20, 2:32 PM PDTFrost AdvisoryMFR42 hr
Sep 20, 2:32 PM PDTFreeze WarningMFR42 hr
Sep 21, 12:51 PM PDTFrost AdvisoryMFR44 hr
Sep 21, 12:51 PM PDTFreeze WatchMFR14 hr
Sep 22, 3:20 AM PDTFreeze WarningMFR30 hr
Oct 2, 1:56 PM PDTFrost AdvisoryMFR19 hr
Oct 2, 1:56 PM PDTFreeze WarningMFR19 hr
Oct 3, 2:02 PM PDTFrost AdvisoryMFR19 hr
Oct 4, 2:21 PM PDTFrost AdvisoryMFR19 hr
Oct 4, 2:21 PM PDTFreeze WarningMFR19 hr
Oct 8, 2:20 PM PDTFrost AdvisoryMFR19 hr
Oct 11, 9:44 AM PDTFrost AdvisoryMFR23 hr
Oct 11, 9:17 PM PDTFreeze WarningMFR12 hr
Oct 13, 6:34 PM PDTFreeze WarningMFR14 hr
Oct 17, 10:36 PM PDTWind AdvisoryMFR48 hr
Oct 18, 3:04 AM PDTFlash Flood WatchMFR44 hr
Nov 4, 3:57 AM PDTWinter Weather AdvisoryMFR37 hr
Nov 6, 1:24 PM PSTHigh Wind WatchMFR26 hr
Nov 7, 3:22 PM PSTHigh Wind WarningMFR49 hr
Nov 7, 3:30 PM PSTWinter Weather AdvisoryMFR49 hr
Nov 12, 2:15 AM PSTWind AdvisoryMFR38 hr
Nov 14, 3:38 AM PSTHigh Wind WatchMFR10 hr
Nov 14, 3:38 AM PSTWind AdvisoryMFR45 hr
Nov 14, 3:54 AM PSTWinter Storm WatchMFR10 hr
Nov 14, 2:00 PM PSTHigh Wind WarningMFR35 hr
Nov 14, 2:09 PM PSTWinter Storm WarningMFR32 hr
Nov 14, 2:09 PM PSTWinter Weather AdvisoryMFR65 hr
Nov 15, 10:14 PM PSTWinter Storm WarningMFR33 hr
Nov 18, 2:17 PM PSTWind AdvisoryMFR3 days
Nov 23, 11:35 AM PSTHigh Wind WatchMFR46 hr
Nov 24, 3:42 PM PSTHigh Wind WarningMFR51 hr
Nov 24, 3:42 PM PSTWind AdvisoryMFR51 hr
Dec 1, 1:04 PM PSTWinter Weather AdvisoryMFR42 hr
Dec 16, 1:33 PM PSTAir Stagnation AdvisoryMFR62 hr
Dec 17, 2:58 PM PSTWinter Storm WatchMFR25 hr
Dec 18, 3:58 PM PSTWinter Storm WarningMFR41 hr
Dec 18, 3:58 PM PSTWinter Weather AdvisoryMFR41 hr
Dec 19, 3:54 PM PSTWinter Weather AdvisoryMFR17 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 archive20162018

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.