Alert archive / California / Siskiyou County

Weather alerts in Siskiyou County, California, 2021

157 weather alerts in 2021, 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 2021. Tap one for its archive.

Alerts: 157
Warnings: 52
Watches: 41
Advisories: 64
Busiest month: January27 alerts
Busiest day: January 29, 20215 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, 2021

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	0			0
Severe thunderstorm warnings	0			0
Flash flood warnings	2	1	50%	2	50%	3 min

Each office's whole area, 2021

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Medford, OR: severe thunderstorm warnings	2	0	100%	0
NWS Medford, OR: flash flood warnings	3	1	67%	3	33%	3 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.

Issued	Product	Office	Lasted
Jan 1, 12:43 PM PST	Winter Weather Advisory	MFR	9 hr
Jan 1, 1:05 PM PST	High Wind Warning	MFR	3 days
Jan 1, 1:05 PM PST	Wind Advisory	MFR	3 days
Jan 2, 3:00 AM PST	Winter Storm Watch	MFR	11 hr
Jan 2, 1:49 PM PST	Winter Storm Warning	MFR	56 hr
Jan 4, 9:55 PM PST	Wind Advisory	MFR	45 hr
Jan 7, 2:38 AM PST	Winter Weather Advisory	MFR	31 hr
Jan 11, 1:02 AM PST	Wind Advisory	MFR	54 hr
Jan 16, 7:19 PM PST	Dense Fog Advisory	MFR	16 hr
Jan 17, 11:30 PM PST	Dense Fog Advisory	MFR	10 hr
Jan 22, 2:04 PM PST	Winter Weather Advisory	MFR	68 hr
Jan 22, 10:14 PM PST	Winter Storm Watch	MFR	40 hr
Jan 24, 2:31 PM PST	Winter Storm Warning	MFR	4 days
Jan 25, 5:23 AM PST	Winter Weather Advisory	MFR	3 days
Jan 26, 4:42 PM PST	Blizzard Warning	MFR	11 hr
Jan 27, 4:09 AM PST	Winter Weather Advisory	MFR	5 hr
Jan 27, 4:50 AM PST	Wind Advisory	MFR	17 hr
Jan 27, 1:14 PM PST	Winter Weather Advisory	MFR	30 hr
Jan 29, 2:43 AM PST	High Wind Watch	MFR	37 hr
Jan 29, 2:13 PM PST	Wind Advisory	MFR	3 days
Jan 29, 3:11 PM PST	Winter Storm Watch	MFR	48 hr
Jan 29, 3:11 PM PST	Winter Storm Warning	MFR	48 hr
Jan 29, 3:11 PM PST	Winter Weather Advisory	MFR	49 hr
Jan 29, 10:53 PM PST	Flood Watch	MFR	59 hr
Jan 30, 3:47 PM PST	High Wind Warning	MFR	55 hr
Jan 31, 2:46 PM PST	Winter Storm Warning	MFR	43 hr
Jan 31, 2:46 PM PST	Winter Weather Advisory	MFR	31 hr
Feb 1, 9:32 AM PST	Areal Flood Advisory	MFR	18 hr
Feb 1, 3:09 PM PST	Winter Weather Advisory	MFR	44 hr
Feb 2, 8:49 PM PST	Winter Storm Warning	MFR	15 hr
Feb 11, 2:56 PM PST	Winter Weather Advisory	MFR	48 hr
Feb 12, 4:08 AM PST	Wind Advisory	MFR	35 hr
Feb 13, 10:33 AM PST	Winter Weather Advisory	MFR	4 hr
Feb 17, 2:55 AM PST	Winter Weather Advisory	MFR	46 hr
Feb 17, 3:01 AM PST	Wind Advisory	MFR	46 hr
Feb 19, 2:35 PM PST	Winter Weather Advisory	MFR	19 hr
Feb 24, 12:46 PM PST	Wind Advisory	MFR	63 hr
Mar 2, 2:33 PM PST	High Wind Watch	MFR	24 hr
Mar 3, 2:23 PM PST	High Wind Warning	MFR	56 hr
Mar 3, 2:23 PM PST	Wind Advisory	MFR	56 hr
Mar 4, 2:49 PM PST	Winter Storm Watch	MFR	7 hr
Mar 4, 2:49 PM PST	Winter Weather Advisory	MFR	37 hr
Mar 7, 1:53 PM PST	Winter Weather Advisory	MFR	68 hr
Mar 8, 3:40 AM PST	Winter Storm Warning	MFR	54 hr
Mar 12, 10:21 PM PST	Winter Storm Watch	MFR	16 hr
Mar 12, 10:21 PM PST	Winter Weather Advisory	MFR	66 hr
Mar 13, 2:32 PM PST	Wind Advisory	MFR	28 hr
Mar 13, 2:32 PM PST	Winter Storm Warning	MFR	46 hr
Mar 17, 3:22 AM PDT	Wind Advisory	MFR	44 hr
Mar 17, 3:48 AM PDT	Winter Storm Watch	MFR	8 hr
Mar 17, 11:52 AM PDT	Winter Storm Warning	MFR	25 hr
Mar 17, 11:52 AM PDT	Winter Weather Advisory	MFR	35 hr
Apr 24, 1:55 PM PDT	Winter Weather Advisory	MFR	24 hr
May 13, 2:22 PM PDT	Red Flag Warning	MFR	30 hr
May 29, 3:07 AM PDT	Excessive Heat Watch	MFR	10 hr
May 29, 1:22 PM PDT	Heat Advisory	MFR	4 days
Jun 3, 12:48 PM PDT	Fire Weather Watch	MFR	15 hr
Jun 4, 3:48 AM PDT	Red Flag Warning	MFR	41 hr
Jun 5, 1:17 PM PDT	Freeze Watch	MFR	24 hr
Jun 6, 1:13 PM PDT	Freeze Warning	MFR	19 hr
Jun 17, 12:46 PM PDT	Excessive Heat Watch	MFR	25 hr
Jun 18, 1:37 PM PDT	Excessive Heat Warning	MFR	3 days
Jun 20, 2:04 PM PDT	Fire Weather Watch	MFR	24 hr
Jun 20, 2:04 PM PDT	Red Flag Warning	MFR	57 hr
Jun 21, 1:55 PM PDT	Red Flag Warning	MFR	33 hr
Jun 22, 2:34 PM PDT	Red Flag Warning	MFR	32 hr
Jun 22, 3:12 PM PDT	Excessive Heat Watch	MFR	23 hr
Jun 23, 3:19 AM PDT	Fire Weather Watch	MFR	11 hr
Jun 23, 2:15 PM PDT	Red Flag Warning	MFR	29 hr
Jun 23, 2:20 PM PDT	Excessive Heat Warning	MFR	7 days
Jun 26, 2:30 PM PDT	Fire Weather Watch	MFR	24 hr
Jun 27, 2:30 PM PDT	Red Flag Warning	MFR	31 hr
Jun 29, 2:20 AM PDT	Heat Advisory	MFR	8 days
Jul 4, 1:35 PM PDT	Fire Weather Watch	MFR	25 hr
Jul 4, 1:35 PM PDT	Red Flag Warning	MFR	30 hr
Jul 5, 2:46 PM PDT	Red Flag Warning	MFR	29 hr
Jul 6, 2:26 PM PDT	Excessive Heat Watch	MFR	23 hr
Jul 6, 2:51 PM PDT	Fire Weather Watch	MFR	23 hr
Jul 7, 1:21 PM PDT	Excessive Heat Warning	MFR	6 days
Jul 7, 1:21 PM PDT	Heat Advisory	MFR	6 days
Jul 7, 2:16 PM PDT	Red Flag Warning	MFR	30 hr
Jul 16, 1:14 PM PDT	Fire Weather Watch	MFR	24 hr
Jul 17, 1:13 PM PDT	Red Flag Warning	MFR	31 hr
Jul 27, 2:51 PM PDT	Flash Flood Warning	MFR	9 hr
Jul 27, 2:54 PM PDT	Excessive Heat Watch	MFR	12 hr
Jul 28, 3:01 AM PDT	Excessive Heat Warning	MFR	65 hr
Jul 28, 5:00 AM PDT	Red Flag Warning	MFR	42 hr
Jul 28, 2:25 PM PDT	Fire Weather Watch	MFR	22 hr
Jul 29, 12:06 PM PDT	Red Flag Warning	MFR	31 hr
Jul 30, 12:48 PM PDT	Red Flag Warning	MFR	33 hr
Jul 30, 1:44 PM PDT	Heat Advisory	MFR	4 days
Aug 2, 3:19 PM PDT	Fire Weather Watch	MFR	22 hr
Aug 2, 3:19 PM PDT	Red Flag Warning	MFR	29 hr
Aug 3, 1:27 PM PDT	Red Flag Warning	MFR	33 hr
Aug 7, 1:23 PM PDT	Excessive Heat Watch	MFR	46 hr
Aug 9, 11:28 AM PDT	Excessive Heat Warning	MFR	5 days
Aug 9, 11:28 AM PDT	Heat Advisory	MFR	4 days
Aug 11, 12:26 PM PDT	Fire Weather Watch	MFR	25 hr
Aug 12, 1:44 PM PDT	Red Flag Warning	MFR	29 hr
Aug 14, 12:17 PM PDT	Heat Advisory	MFR	35 hr
Aug 15, 2:26 PM PDT	Fire Weather Watch	MFR	23 hr
Aug 16, 1:45 PM PDT	Fire Weather Watch	MFR	16 hr
Aug 16, 1:45 PM PDT	Red Flag Warning	MFR	32 hr
Sep 6, 2:00 PM PDT	Red Flag Warning	MFR	30 hr
Sep 8, 2:31 PM PDT	Fire Weather Watch	MFR	23 hr
Sep 8, 8:42 PM PDT	Red Flag Warning	MFR	44 hr
Sep 12, 10:42 AM PDT	Fire Weather Watch	MFR	3 hr
Sep 12, 1:56 PM PDT	Red Flag Warning	MFR	41 hr
Sep 16, 2:19 PM PDT	Flash Flood Watch	MFR	49 hr
Sep 27, 3:01 AM PDT	Freeze Watch	MFR	11 hr
Sep 27, 2:20 PM PDT	Freeze Warning	MFR	44 hr
Sep 28, 3:43 AM PDT	Frost Advisory	MFR	30 hr
Oct 8, 1:52 PM PDT	Freeze Warning	MFR	19 hr
Oct 10, 2:32 AM PDT	Freeze Watch	MFR	35 hr
Oct 10, 8:54 PM PDT	Frost Advisory	MFR	12 hr
Oct 10, 10:58 PM PDT	Wind Advisory	MFR	22 hr
Oct 11, 1:36 PM PDT	Frost Advisory	MFR	19 hr
Oct 11, 1:36 PM PDT	Freeze Warning	MFR	19 hr
Oct 15, 1:47 PM PDT	Wind Advisory	MFR	55 hr
Oct 18, 1:17 PM PDT	Wind Advisory	MFR	49 hr
Oct 19, 8:54 AM PDT	Winter Weather Advisory	MFR	21 hr
Oct 20, 3:30 AM PDT	Wind Advisory	MFR	53 hr
Oct 22, 4:25 AM PDT	Flash Flood Warning	MFR	2 hr
Oct 22, 12:05 PM PDT	Flash Flood Watch	MFR	59 hr
Oct 22, 2:59 PM PDT	High Wind Warning	MFR	56 hr
Oct 23, 4:46 AM PDT	Flood Watch	MFR	36 hr
Nov 1, 7:40 AM PDT	Wind Advisory	MFR	9 hr
Nov 2, 12:31 PM PDT	Wind Advisory	MFR	52 hr
Nov 6, 3:08 AM PDT	Winter Storm Watch	MFR	24 hr
Nov 6, 3:14 AM PDT	High Wind Watch	MFR	23 hr
Nov 7, 1:36 AM PST	High Wind Warning	MFR	53 hr
Nov 7, 1:36 AM PST	Wind Advisory	MFR	53 hr
Nov 7, 2:01 AM PST	Winter Storm Warning	MFR	53 hr
Nov 7, 2:01 AM PST	Winter Weather Advisory	MFR	53 hr
Nov 9, 4:05 AM PST	Wind Advisory	MFR	3 hr
Nov 12, 2:59 AM PST	Dense Fog Advisory	MFR	7 hr
Nov 17, 2:00 PM PST	Wind Advisory	MFR	41 hr
Dec 7, 10:12 PM PST	Dense Fog Advisory	MFR	10 hr
Dec 9, 3:10 PM PST	Winter Storm Watch	MFR	38 hr
Dec 10, 2:55 PM PST	Wind Advisory	MFR	43 hr
Dec 10, 3:52 PM PST	Winter Storm Warning	MFR	4 days
Dec 10, 3:52 PM PST	Winter Weather Advisory	MFR	4 days
Dec 14, 2:42 AM PST	Winter Storm Watch	MFR	12 hr
Dec 14, 2:12 PM PST	Winter Storm Warning	MFR	36 hr
Dec 14, 2:12 PM PST	Winter Weather Advisory	MFR	43 hr
Dec 14, 2:16 PM PST	High Wind Warning	MFR	29 hr
Dec 14, 2:16 PM PST	Wind Advisory	MFR	29 hr
Dec 19, 2:44 PM PST	Wind Advisory	MFR	19 hr
Dec 20, 6:47 AM PST	Winter Storm Watch	MFR	21 hr
Dec 21, 3:24 AM PST	Wind Advisory	MFR	42 hr
Dec 21, 4:11 AM PST	Winter Storm Warning	MFR	51 hr
Dec 21, 4:11 AM PST	Winter Weather Advisory	MFR	72 hr
Dec 22, 4:32 AM PST	Winter Storm Watch	MFR	65 hr
Dec 23, 5:38 AM PST	Winter Storm Warning	MFR	4 days
Dec 23, 3:22 PM PST	Winter Weather Advisory	MFR	4 days
Dec 27, 2:19 AM PST	Winter Weather Advisory	MFR	32 hr
Dec 28, 7:46 PM PST	Winter Weather Advisory	MFR	14 hr

By product

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

Product	Alerts
Flooding
Flash Flood Warning	2
Flash Flood Watch	2
Flood Watch	2
Areal Flood Advisory	1
Winter
Blizzard Warning	1
Winter Storm Warning	13
Winter Storm Watch	11
Winter Weather Advisory	26
Heat
Excessive Heat Warning	5
Excessive Heat Watch	6
Heat Advisory	6
Cold
Freeze Warning	4
Freeze Watch	3
Frost Advisory	3
Wind and dust
High Wind Warning	6
High Wind Watch	3
Wind Advisory	24
Fire
Red Flag Warning	21
Fire Weather Watch	14
Fog and smoke
Dense Fog Advisory	4

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record Forecast The radar archive 2020 2022

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.