Weather alerts in Lyon County, Kansas, 2025

156 weather alerts in 2025, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Lyon County and its neighbors

Each county as a circle sized by its count in 2025. Tap one for its archive.

Alerts: 156
Warnings: 53
Watches: 24
Advisories: 38
Busiest month: June32 alerts
Busiest day: June 3, 202514 alerts

Over time

By month

Warning verification

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

Lyon County, 2025

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	0			0
Severe thunderstorm warnings	16	6	63%	7	86%	6 min
Flash flood warnings	4	1	75%	1	100%	314 min

Each office's whole area, 2025

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Topeka, KS: tornado warnings	8	1	88%	2	50%	0 min
NWS Topeka, KS: severe thunderstorm warnings	177	65	63%	133	75%	19 min
NWS Topeka, KS: flash flood warnings	29	8	72%	13	77%	133 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, Central Time. Each opens its own page with the text, the map, the radar and the sounding.

Issued	Product	Office	Lasted
Jan 2, 3:21 AM CST	Winter Storm Watch	TOP	34 hr
Jan 3, 1:13 PM CST	Winter Storm Warning	TOP	55 hr
Jan 4, 1:51 PM CST	Blizzard Warning	TOP	30 hr
Jan 4, 8:38 PM CST	Mesoscale Discussion	SPC	6 hr
Jan 5, 2:38 AM CST	Cold Weather Advisory	TOP	32 hr
Jan 5, 6:51 AM CST	Mesoscale Discussion	SPC	4 hr
Jan 8, 2:25 PM CST	Winter Weather Advisory	TOP	40 hr
Jan 20, 2:13 AM CST	Cold Weather Advisory	TOP	34 hr
Jan 30, 2:54 AM CST	Dense Fog Advisory	TOP	10 hr
Jan 30, 8:29 PM CST	Dense Fog Advisory	TOP	7 hr
Feb 4, 7:45 PM CST	Winter Weather Advisory	TOP	19 hr
Feb 5, 2:15 PM CST	Dense Fog Advisory	TOP	12 hr
Feb 9, 2:23 PM CST	Winter Storm Watch	TOP	23 hr
Feb 10, 1:43 PM CST	Winter Storm Warning	TOP	44 hr
Feb 10, 1:49 PM CST	Winter Storm Watch	TOP	13 hr
Feb 12, 9:44 AM CST	Winter Weather Advisory	TOP	4 hr
Feb 14, 2:27 AM CST	Wind Advisory	TOP	14 hr
Feb 15, 1:51 PM CST	Winter Storm Watch	TOP	37 hr
Feb 16, 2:44 AM CST	Extreme Cold Watch	TOP	24 hr
Feb 17, 2:52 AM CST	Winter Storm Warning	TOP	42 hr
Feb 17, 2:56 AM CST	Extreme Cold Warning	TOP	3 days
Feb 28, 2:26 AM CST	Red Flag Warning	TOP	17 hr
Mar 2, 1:52 PM CST	High Wind Watch	TOP	24 hr
Mar 3, 2:01 PM CST	High Wind Warning	TOP	43 hr
Mar 4, 12:20 AM CST	Special Weather Statement	TOP	25 min
Mar 4, 2:15 AM CST	Winter Weather Advisory	TOP	25 hr
Mar 5, 9:11 AM CST	Wind Advisory	TOP	5 hr
Mar 9, 3:19 AM CDT	Fire Weather Watch	TOP	10 hr
Mar 9, 1:42 PM CDT	Red Flag Warning	TOP	30 hr
Mar 13, 2:38 AM CDT	High Wind Watch	TOP	24 hr
Mar 13, 2:47 AM CDT	Fire Weather Watch	TOP	11 hr
Mar 13, 1:49 PM CDT	Red Flag Warning	TOP	30 hr
Mar 14, 2:45 AM CDT	High Wind Warning	TOP	17 hr
Mar 15, 2:41 PM CDT	Fire Weather Watch	TOP	24 hr
Mar 16, 2:23 PM CDT	Red Flag Warning	TOP	30 hr
Mar 17, 2:22 AM CDT	Fire Weather Watch	TOP	12 hr
Mar 17, 2:24 PM CDT	Red Flag Warning	TOP	32 hr
Mar 18, 3:42 AM CDT	High Wind Warning	TOP	39 hr
Mar 18, 3:42 AM CDT	Wind Advisory	TOP	24 hr
Mar 18, 3:42 AM CDT	Wind Advisory	TOP	42 hr
Mar 27, 8:02 AM CDT	Special Weather Statement	TOP	43 min
Mar 27, 9:01 AM CDT	Special Weather Statement	TOP	44 min
Mar 27, 9:41 AM CDT	Severe Thunderstorm Warning	TOP	34 min
Mar 27, 9:51 AM CDT	Severe Thunderstorm Warning	TOP	27 min
Mar 27, 10:03 AM CDT	Mesoscale Discussion	SPC	117 min
Mar 31, 1:36 PM CDT	Wind Advisory	TOP	35 hr
Apr 1, 7:25 PM CDT	Severe Thunderstorm Watch	SPC	10 hr
Apr 1, 9:45 PM CDT	Special Weather Statement	TOP	30 min
Apr 1, 11:03 PM CDT	Mesoscale Discussion	SPC	117 min
Apr 1, 11:51 PM CDT	Tornado Watch	SPC	7 hr
Apr 2, 3:39 AM CDT	Severe Thunderstorm Warning	TOP	36 min
Apr 6, 1:38 AM CDT	Freeze Watch	TOP	12 hr
Apr 6, 1:38 AM CDT	Freeze Watch	TOP	36 hr
Apr 6, 1:33 PM CDT	Freeze Warning	TOP	19 hr
Apr 7, 1:47 PM CDT	Freeze Warning	TOP	18 hr
Apr 16, 9:23 PM CDT	Mesoscale Discussion	SPC	2 hr
Apr 17, 1:46 AM CDT	Mesoscale Discussion	SPC	119 min
Apr 22, 8:20 PM CDT	Mesoscale Discussion	SPC	115 min
Apr 22, 10:10 PM CDT	Special Weather Statement	TOP	35 min
Apr 22, 10:30 PM CDT	Special Weather Statement	TOP	30 min
Apr 23, 5:02 PM CDT	Mesoscale Discussion	SPC	88 min
Apr 24, 5:42 PM CDT	Special Weather Statement	TOP	33 min
Apr 24, 6:28 PM CDT	Flash Flood Warning	TOP	4 hr
Apr 28, 3:28 PM CDT	Mesoscale Discussion	SPC	3 hr
Apr 30, 1:41 PM CDT	Special Weather Statement	TOP	64 min
May 18, 6:01 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
May 18, 7:14 PM CDT	Severe Thunderstorm Warning	TOP	31 min
May 18, 7:38 PM CDT	Severe Thunderstorm Warning	TOP	37 min
May 19, 12:50 PM CDT	Mesoscale Discussion	SPC	115 min
May 19, 1:37 PM CDT	Tornado Watch	SPC	9 hr
May 19, 4:53 PM CDT	Severe Thunderstorm Warning	TOP	52 min
May 19, 5:43 PM CDT	Severe Thunderstorm Warning Considerable damage threat	TOP	47 min
May 19, 6:04 PM CDT	Severe Thunderstorm Warning	TOP	41 min
May 19, 6:56 PM CDT	Severe Thunderstorm Warning	TOP	34 min
May 19, 7:40 PM CDT	Flash Flood Warning	TOP	4 hr
May 19, 8:39 PM CDT	Special Weather Statement	TOP	36 min
May 19, 11:19 PM CDT	Mesoscale Discussion	SPC	2 hr
May 25, 8:28 AM CDT	Areal Flood Advisory	TOP	3 hr
May 26, 11:54 AM CDT	River Flood Warning	TOP	51 hr
May 27, 8:48 AM CDT	River Flood Warning	TOP	3 days
May 28, 7:56 PM CDT	River Flood Warning	TOP	6 hr
Jun 2, 1:43 PM CDT	Flood Watch	TOP	34 hr
Jun 2, 10:37 PM CDT	Mesoscale Discussion	SPC	113 min
Jun 3, 6:17 AM CDT	Special Weather Statement	TOP	43 min
Jun 3, 7:37 AM CDT	Areal Flood Advisory	TOP	3 hr
Jun 3, 9:14 AM CDT	River Flood Warning	TOP	25 hr
Jun 3, 10:04 AM CDT	Special Weather Statement	TOP	26 min
Jun 3, 10:16 AM CDT	Flash Flood Warning	TOP	6 hr
Jun 3, 12:01 PM CDT	Special Weather Statement	TOP	29 min
Jun 3, 12:08 PM CDT	River Flood Warning	TOP	8 days
Jun 3, 12:59 PM CDT	Mesoscale Discussion	SPC	2 hr
Jun 3, 3:39 PM CDT	River Flood Warning	ICT	67 hr
Jun 3, 3:48 PM CDT	Areal Flood Warning	TOP	17 hr
Jun 3, 4:10 PM CDT	River Flood Warning	TOP	5 days
Jun 3, 4:10 PM CDT	River Flood Warning	TOP	34 hr
Jun 3, 4:10 PM CDT	River Flood Warning	TOP	18 hr
Jun 7, 12:12 AM CDT	Flash Flood Warning	TOP	4 hr
Jun 16, 10:47 PM CDT	Mesoscale Discussion	SPC	118 min
Jun 16, 11:12 PM CDT	Severe Thunderstorm Watch	SPC	8 hr
Jun 17, 2:30 AM CDT	Flood Watch	TOP	24 hr
Jun 17, 11:56 AM CDT	River Flood Warning	TOP	32 hr
Jun 17, 2:11 PM CDT	Special Weather Statement	TOP	34 min
Jun 17, 3:46 PM CDT	Areal Flood Advisory	TOP	3 hr
Jun 18, 7:51 AM CDT	River Flood Warning	TOP	37 hr
Jun 18, 4:32 PM CDT	Special Weather Statement	TOP	28 min
Jun 18, 5:04 PM CDT	Severe Thunderstorm Warning	TOP	26 min
Jun 19, 2:05 PM CDT	Heat Advisory	TOP	3 days
Jun 20, 1:43 PM CDT	Wind Advisory	TOP	30 hr
Jun 21, 2:29 AM CDT	Wind Advisory	TOP	41 hr
Jun 23, 4:45 PM CDT	Mesoscale Discussion	SPC	2 hr
Jun 26, 4:29 PM CDT	Mesoscale Discussion	SPC	91 min
Jun 29, 11:24 AM CDT	Mesoscale Discussion	SPC	2 hr
Jun 30, 4:52 AM CDT	Mesoscale Discussion	SPC	2 hr
Jul 11, 3:16 PM CDT	Mesoscale Discussion	SPC	119 min
Jul 17, 2:16 AM CDT	Severe Thunderstorm Warning	TOP	29 min
Jul 17, 2:24 AM CDT	Special Weather Statement	TOP	51 min
Jul 17, 2:37 AM CDT	Severe Thunderstorm Warning	TOP	38 min
Jul 18, 2:08 PM CDT	Extreme Heat Warning	TOP	4 days
Jul 18, 5:17 PM CDT	Mesoscale Discussion	SPC	118 min
Jul 21, 11:23 PM CDT	Severe Thunderstorm Warning	TOP	33 min
Jul 22, 12:03 AM CDT	Special Weather Statement	TOP	27 min
Jul 23, 2:08 PM CDT	Flood Watch	TOP	59 hr
Jul 24, 3:08 PM CDT	Mesoscale Discussion	SPC	2 hr
Jul 25, 3:09 PM CDT	Mesoscale Discussion	SPC	2 hr
Jul 25, 6:27 PM CDT	Areal Flood Warning	TOP	3 hr
Jul 26, 12:28 PM CDT	Heat Advisory	TOP	3 days
Aug 7, 1:42 PM CDT	Heat Advisory	TOP	30 hr
Aug 8, 7:49 PM CDT	Heat Advisory	TOP	24 hr
Aug 9, 2:40 AM CDT	Flood Watch	TOP	55 hr
Aug 14, 1:54 PM CDT	Heat Advisory	TOP	54 hr
Aug 19, 1:58 PM CDT	Mesoscale Discussion	SPC	2 hr
Aug 27, 7:56 AM CDT	River Flood Warning	ICT	64 hr
Aug 29, 3:57 AM CDT	Dense Fog Advisory	TOP	5 hr
Sep 2, 1:49 PM CDT	River Flood Warning	TOP	21 hr
Sep 3, 4:43 PM CDT	Mesoscale Discussion	SPC	62 min
Sep 3, 5:18 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
Sep 3, 5:24 PM CDT	Severe Thunderstorm Warning	TOP	40 min
Sep 3, 7:17 PM CDT	Severe Thunderstorm Warning	TOP	28 min
Sep 14, 4:54 PM CDT	Special Weather Statement	TOP	36 min
Sep 14, 5:26 PM CDT	Severe Thunderstorm Warning	TOP	34 min
Sep 22, 6:52 AM CDT	Dense Fog Advisory	TOP	3 hr
Oct 28, 7:55 AM CDT	Wind Advisory	TOP	26 hr
Oct 29, 2:48 AM CDT	Frost Advisory	TOP	30 hr
Oct 30, 1:47 PM CDT	Frost Advisory	TOP	19 hr
Nov 22, 7:17 PM CST	Dense Fog Advisory	TOP	17 hr
Nov 28, 12:58 PM CST	Wind Advisory	TOP	29 hr
Nov 30, 1:56 AM CST	Winter Weather Advisory	TOP	40 hr
Dec 16, 2:34 PM CST	Fire Weather Watch	TOP	24 hr
Dec 17, 2:46 AM CST	Wind Advisory	TOP	11 hr
Dec 17, 1:39 PM CST	High Wind Warning	TOP	28 hr
Dec 17, 2:10 PM CST	Red Flag Warning	TOP	28 hr
Dec 23, 4:40 AM CST	Dense Fog Advisory	TOP	8 hr
Dec 23, 1:45 PM CST	Dense Fog Advisory	TOP	22 hr
Dec 24, 1:24 PM CST	Dense Fog Advisory	TOP	23 hr
Dec 25, 8:30 PM CST	Dense Fog Advisory	TOP	8 hr
Dec 27, 12:56 PM CST	Wind Advisory	TOP	27 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	16
Severe Thunderstorm Watch	4
Tornado Watch	2
Mesoscale Discussion	24
Special Weather Statement	17
Flooding
Areal Flood Warning	2
Flash Flood Warning	4
River Flood Warning	13
Flood Watch	4
Areal Flood Advisory	3
Winter
Blizzard Warning	1
Winter Storm Warning	3
Winter Storm Watch	4
Winter Weather Advisory	5
Heat
Extreme Heat Warning	1
Heat Advisory	5
Cold
Extreme Cold Warning	1
Freeze Warning	2
Extreme Cold Watch	1
Freeze Watch	2
Cold Weather Advisory	2
Frost Advisory	2
Wind and dust
High Wind Warning	4
High Wind Watch	2
Wind Advisory	11
Fire
Red Flag Warning	6
Fire Weather Watch	5
Fog and smoke
Dense Fog Advisory	10

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record Forecast The radar archive 2024 2026

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.