Alert archive / Washington / Okanogan County

Weather alerts in Okanogan County, Washington, 2023

115 weather alerts in 2023, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Okanogan County and its neighbors

Each county as a circle sized by its count in 2023. Tap one for its archive.

Alerts: 115
Warnings: 27
Watches: 23
Advisories: 57
Busiest month: May22 alerts
Busiest day: June 27, 20236 alerts

Over time

By month

Warning verification

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

Okanogan County, 2023

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	0			0
Severe thunderstorm warnings	1	0	100%	7	0%
Flash flood warnings	7	2	71%	14	29%	27 min

Each office's whole area, 2023

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Spokane, WA: tornado warnings	0			2	0%
NWS Spokane, WA: severe thunderstorm warnings	36	19	47%	116	57%	16 min
NWS Spokane, WA: flash flood warnings	18	4	78%	49	49%	32 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 3, 4:39 AM PST	Winter Weather Advisory	OTX	5 hr
Jan 6, 2:10 PM PST	Winter Weather Advisory	OTX	31 hr
Jan 11, 1:59 AM PST	Winter Weather Advisory	OTX	34 hr
Jan 13, 2:58 AM PST	Areal Flood Advisory	OTX	19 hr
Jan 15, 9:10 AM PST	Dense Fog Advisory	OTX	3 hr
Jan 22, 9:23 AM PST	Dense Fog Advisory	OTX	4 hr
Feb 20, 1:32 AM PST	Wind Advisory	OTX	31 hr
Feb 20, 2:16 PM PST	Winter Weather Advisory	OTX	44 hr
Feb 22, 4:59 AM PST	Wind Chill Advisory	OTX	53 hr
Feb 27, 2:20 PM PST	Winter Weather Advisory	OTX	25 hr
Mar 8, 1:26 PM PST	Winter Weather Advisory	OTX	15 hr
Mar 9, 3:48 AM PST	Winter Weather Advisory	OTX	54 hr
Mar 12, 3:29 AM PDT	Winter Weather Advisory	OTX	51 hr
Mar 31, 12:14 PM PDT	Winter Weather Advisory	OTX	22 hr
Apr 9, 3:21 PM PDT	Flood Watch	OTX	43 hr
May 3, 8:51 PM PDT	Flood Watch	OTX	3 days
May 4, 7:38 PM PDT	Special Weather Statement	OTX	37 min
May 5, 6:23 AM PDT	River Flood Watch	OTX	65 hr
May 5, 10:13 AM PDT	Areal Flood Warning	OTX	27 hr
May 5, 12:44 PM PDT	River Flood Warning	OTX	33 hr
May 5, 9:41 PM PDT	Areal Flood Advisory	OTX	19 hr
May 6, 8:36 AM PDT	Areal Flood Warning	OTX	50 hr
May 6, 4:06 PM PDT	Areal Flood Advisory	OTX	43 hr
May 16, 2:26 AM PDT	Flood Watch	OTX	18 hr
May 16, 5:43 PM PDT	Areal Flood Advisory	OTX	3 hr
May 16, 6:17 PM PDT	Flash Flood Warning	OTX	2 hr
May 18, 9:00 PM PDT	Special Weather Statement	OTX	30 min
May 18, 9:18 PM PDT	Areal Flood Advisory	OTX	3 hr
May 20, 1:51 PM PDT	Areal Flood Advisory	OTX	3 hr
May 20, 6:59 PM PDT	Special Weather Statement	OTX	31 min
May 21, 3:48 PM PDT	Special Weather Statement	OTX	42 min
May 21, 3:53 PM PDT	Severe Thunderstorm Warning	OTX	16 min
May 21, 4:58 PM PDT	Special Weather Statement	OTX	32 min
May 27, 11:28 AM PDT	Flash Flood Warning	OTX	3 hr
May 27, 1:39 PM PDT	Flash Flood Warning	OTX	85 min
May 27, 2:01 PM PDT	Areal Flood Advisory	OTX	84 min
May 27, 2:07 PM PDT	Areal Flood Advisory	OTX	87 min
Jun 7, 9:31 AM PDT	Flood Watch	OTX	62 hr
Jun 8, 8:22 PM PDT	Special Weather Statement	OTX	38 min
Jun 10, 2:51 AM PDT	Flood Watch	OTX	12 hr
Jun 24, 1:54 AM PDT	Flood Watch	OTX	15 hr
Jun 24, 1:51 PM PDT	Areal Flood Advisory	OTX	114 min
Jun 25, 1:30 AM PDT	Flood Watch	OTX	17 hr
Jun 26, 1:17 AM PDT	Flood Watch	OTX	20 hr
Jun 26, 1:01 PM PDT	Flash Flood Warning Considerable damage threat	OTX	2 hr
Jun 27, 1:50 AM PDT	Flood Watch	OTX	19 hr
Jun 27, 12:45 PM PDT	Areal Flood Advisory	OTX	3 hr
Jun 27, 1:33 PM PDT	Flash Flood Warning Considerable damage threat	OTX	3 hr
Jun 27, 2:23 PM PDT	Special Weather Statement	OTX	37 min
Jun 27, 2:58 PM PDT	Areal Flood Advisory	OTX	2 hr
Jun 27, 4:17 PM PDT	Areal Flood Advisory	OTX	3 hr
Jun 27, 5:25 PM PDT	Areal Flood Advisory	OTX	2 hr
Jun 28, 1:37 PM PDT	Fire Weather Watch	OTX	47 hr
Jun 28, 2:44 PM PDT	Areal Flood Advisory	OTX	2 hr
Jun 30, 12:55 PM PDT	Red Flag Warning	OTX	34 hr
Jul 2, 3:10 AM PDT	Fire Weather Watch	OTX	11 hr
Jul 2, 2:15 PM PDT	Red Flag Warning	OTX	31 hr
Jul 7, 2:33 AM PDT	Heat Advisory	OTX	65 hr
Jul 7, 12:51 PM PDT	Flash Flood Warning Considerable damage threat	OTX	3 hr
Jul 7, 1:24 PM PDT	Areal Flood Advisory	OTX	3 hr
Jul 7, 2:38 PM PDT	Areal Flood Advisory	OTX	2 hr
Jul 9, 2:04 PM PDT	Areal Flood Advisory	OTX	3 hr
Jul 9, 2:40 PM PDT	Special Weather Statement	OTX	50 min
Jul 9, 3:10 PM PDT	Flood Watch	OTX	28 hr
Jul 12, 3:16 PM PDT	Areal Flood Advisory	OTX	2 hr
Jul 12, 5:51 PM PDT	Areal Flood Advisory	OTX	3 hr
Jul 12, 6:34 PM PDT	Flash Flood Warning	OTX	2 hr
Jul 13, 1:45 PM PDT	Fire Weather Watch	OTX	49 hr
Jul 13, 1:45 PM PDT	Fire Weather Watch	OTX	61 hr
Jul 13, 1:57 PM PDT	Heat Advisory	OTX	3 days
Jul 15, 2:55 PM PDT	Red Flag Warning	OTX	54 hr
Jul 23, 1:49 PM PDT	Red Flag Warning	OTX	33 hr
Jul 29, 3:39 PM PDT	Red Flag Warning	OTX	4 hr
Jul 30, 3:22 AM PDT	Red Flag Warning	OTX	18 hr
Aug 5, 6:00 AM PDT	Flood Watch	OTX	62 hr
Aug 11, 1:15 PM PDT	Excessive Heat Watch	OTX	48 hr
Aug 13, 11:02 AM PDT	Excessive Heat Warning	OTX	4 days
Aug 15, 2:12 PM PDT	Fire Weather Watch	OTX	24 hr
Aug 16, 5:38 AM PDT	Red Flag Warning	OTX	9 hr
Aug 16, 2:12 PM PDT	Red Flag Warning	OTX	31 hr
Aug 16, 2:12 PM PDT	Red Flag Warning	OTX	55 hr
Aug 18, 1:56 PM PDT	Red Flag Warning	OTX	29 hr
Aug 28, 2:20 PM PDT	Flood Watch	OTX	39 hr
Aug 30, 3:54 AM PDT	Areal Flood Advisory	OTX	3 hr
Sep 15, 1:40 PM PDT	Fire Weather Watch	OTX	23 hr
Sep 16, 12:13 PM PDT	Red Flag Warning	OTX	32 hr
Sep 17, 2:39 AM PDT	Red Flag Warning	OTX	41 hr
Oct 22, 1:53 PM PDT	Winter Storm Watch	OTX	23 hr
Oct 23, 1:21 PM PDT	Winter Storm Warning	OTX	52 hr
Oct 23, 1:21 PM PDT	Winter Weather Advisory	OTX	52 hr
Oct 31, 8:35 PM PDT	Air Stagnation Advisory	OTX	25 hr
Nov 2, 9:54 PM PDT	Dense Fog Advisory	OTX	13 hr
Nov 5, 2:12 AM PST	Dense Fog Advisory	OTX	8 hr
Nov 9, 2:44 AM PST	Dense Fog Advisory	OTX	7 hr
Nov 9, 11:07 AM PST	Winter Storm Watch	OTX	16 hr
Nov 9, 1:56 PM PST	Wind Advisory	OTX	53 hr
Nov 10, 2:47 AM PST	Winter Storm Warning	OTX	43 hr
Nov 13, 11:40 PM PST	Dense Fog Advisory	OTX	11 hr
Nov 14, 6:11 PM PST	Dense Fog Advisory	OTX	13 hr
Nov 16, 1:43 AM PST	Dense Fog Advisory	OTX	8 hr
Nov 16, 10:52 PM PST	Dense Fog Advisory	OTX	13 hr
Nov 27, 10:36 AM PST	Air Stagnation Advisory	OTX	3 days
Nov 28, 5:20 PM PST	Dense Fog Advisory	OTX	19 hr
Nov 29, 12:16 PM PST	Winter Storm Watch	OTX	20 hr
Nov 30, 4:10 AM PST	Winter Storm Warning	OTX	3 days
Nov 30, 4:10 AM PST	Winter Weather Advisory	OTX	57 hr
Dec 3, 3:26 PM PST	Winter Weather Advisory	OTX	25 hr
Dec 4, 12:24 AM PST	Dense Fog Advisory	OTX	9 hr
Dec 8, 2:46 PM PST	Winter Weather Advisory	OTX	46 hr
Dec 15, 2:02 PM PST	Air Stagnation Advisory	OTX	68 hr
Dec 15, 11:32 PM PST	Dense Fog Advisory	OTX	14 hr
Dec 20, 7:17 PM PST	Dense Fog Advisory	OTX	16 hr
Dec 21, 4:41 PM PST	Dense Fog Advisory	OTX	17 hr
Dec 24, 1:46 PM PST	Winter Weather Advisory	OTX	44 hr
Dec 31, 8:24 AM PST	Dense Fog Advisory	OTX	4 hr

By product

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

Product	Alerts
Severe storms
Severe Thunderstorm Warning	1
Special Weather Statement	8
Flooding
Areal Flood Warning	2
Flash Flood Warning	7
River Flood Warning	1
Flood Watch	12
River Flood Watch	1
Areal Flood Advisory	20
Winter
Winter Storm Warning	3
Winter Storm Watch	3
Winter Weather Advisory	14
Heat
Excessive Heat Warning	1
Excessive Heat Watch	1
Heat Advisory	2
Cold
Wind Chill Advisory	1
Wind and dust
Wind Advisory	2
Fire
Red Flag Warning	12
Fire Weather Watch	6
Fog and smoke
Air Stagnation Advisory	3
Dense Fog Advisory	15

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record Forecast The radar archive 2022 2024

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.