Weather alerts in Ottawa County, Kansas, 2026

201 weather alerts in 2026, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Ottawa County and its neighbors

Each county as a circle sized by its count in 2026. Tap one for its archive.

Alerts: 201
Warnings: 79
Watches: 32
Advisories: 33
Busiest month: May47 alerts
Busiest day: May 18, 202625 alerts

Over time

By month

Warning verification

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

0 of 5 tornado warnings covering Ottawa County in 2026 had a tornado report inside them.

Ottawa County, 2026

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	5	0	100%	0
Severe thunderstorm warnings	36	15	58%	18	94%	28 min
Flash flood warnings	7	2	71%	2	50%	141 min

Each office's whole area, 2026

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Topeka, KS: tornado warnings	70	14	80%	20	90%	19 min
NWS Topeka, KS: severe thunderstorm warnings	414	171	59%	407	88%	24 min
NWS Topeka, KS: flash flood warnings	38	10	74%	34	94%	65 min

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

The year is still running; reports filed late and damage surveys can still change these figures.

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 1, 8:39 AM CST	Dense Fog Advisory	TOP	2 hr
Jan 9, 4:13 PM CST	Winter Weather Advisory	TOP	8 hr
Jan 16, 3:56 PM CST	Special Weather Statement	TOP	64 min
Jan 16, 8:12 PM CST	Special Weather Statement	TOP	63 min
Jan 21, 1:06 PM CST	Winter Storm Watch	TOP	24 hr
Jan 22, 2:53 AM CST	Cold Weather Advisory	TOP	4 days
Jan 22, 1:08 PM CST	Winter Storm Warning	TOP	65 hr
Feb 15, 1:32 AM CST	Dense Fog Advisory	TOP	8 hr
Feb 16, 2:53 AM CST	Fire Weather Watch	TOP	24 hr
Feb 17, 3:09 AM CST	Red Flag Warning	TOP	18 hr
Feb 20, 11:13 AM CST	Winter Weather Advisory	TOP	19 hr
Feb 28, 12:02 PM CST	Winter Weather Advisory	TOP	42 hr
Mar 3, 4:51 AM CST	Dense Fog Advisory	TOP	5 hr
Mar 4, 10:09 PM CST	Dense Fog Advisory	TOP	11 hr
Mar 6, 1:50 PM CST	Mesoscale Discussion	SPC	2 hr
Mar 6, 3:16 PM CST	Tornado Watch	SPC	9 hr
Mar 6, 5:23 PM CST	Mesoscale Discussion	SPC	2 hr
Mar 6, 5:29 PM CST	Special Weather Statement	TOP	31 min
Mar 11, 1:17 AM CDT	Fire Weather Watch	TOP	12 hr
Mar 11, 12:57 PM CDT	Red Flag Warning	TOP	35 hr
Mar 12, 11:27 AM CDT	Wind Advisory	TOP	15 hr
Mar 13, 1:35 PM CDT	High Wind Watch	TOP	22 hr
Mar 14, 11:14 AM CDT	High Wind Warning	TOP	36 hr
Mar 19, 1:34 PM CDT	Fire Weather Watch	TOP	47 hr
Mar 20, 11:32 AM CDT	Red Flag Warning	TOP	34 hr
Mar 21, 12:58 PM CDT	Red Flag Warning	TOP	30 hr
Mar 21, 1:00 PM CDT	Wind Advisory	TOP	27 hr
Mar 25, 12:06 PM CDT	Fire Weather Watch	TOP	13 hr
Mar 26, 1:31 AM CDT	Red Flag Warning	TOP	18 hr
Mar 26, 1:37 PM CDT	Fire Weather Watch	TOP	21 hr
Mar 26, 1:37 PM CDT	Red Flag Warning	TOP	31 hr
Mar 27, 10:57 AM CDT	Red Flag Warning	TOP	35 hr
Apr 8, 4:49 PM CDT	Mesoscale Discussion	SPC	116 min
Apr 9, 1:39 PM CDT	Mesoscale Discussion	SPC	3 hr
Apr 9, 5:11 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
Apr 9, 6:33 PM CDT	Mesoscale Discussion	SPC	117 min
Apr 9, 7:51 PM CDT	Severe Thunderstorm Warning Considerable damage threat	TOP	54 min
Apr 11, 1:56 PM CDT	Mesoscale Discussion	SPC	3 hr
Apr 13, 1:48 AM CDT	Red Flag Warning	TOP	19 hr
Apr 14, 1:31 AM CDT	Red Flag Warning	TOP	18 hr
Apr 16, 12:00 AM CDT	Red Flag Warning	TOP	21 hr
Apr 20, 1:30 AM CDT	Red Flag Warning	TOP	19 hr
Apr 23, 1:00 PM CDT	Mesoscale Discussion	SPC	2 hr
Apr 23, 2:04 PM CDT	Tornado Watch	SPC	9 hr
Apr 25, 2:43 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
Apr 25, 6:11 PM CDT	Severe Thunderstorm Warning	TOP	34 min
Apr 25, 6:21 PM CDT	Mesoscale Discussion	SPC	84 min
Apr 25, 6:45 PM CDT	Severe Thunderstorm Warning	TOP	30 min
Apr 25, 7:41 PM CDT	Severe Thunderstorm Warning	TOP	34 min
Apr 25, 8:10 PM CDT	Severe Thunderstorm Warning	TOP	35 min
Apr 25, 8:20 PM CDT	Severe Thunderstorm Warning	TOP	25 min
Apr 26, 11:24 AM CDT	Mesoscale Discussion	SPC	96 min
Apr 26, 12:07 PM CDT	Severe Thunderstorm Watch	SPC	9 hr
Apr 26, 8:38 PM CDT	Mesoscale Discussion	SPC	2 hr
Apr 26, 9:11 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
Apr 27, 12:49 AM CDT	Severe Thunderstorm Warning	TOP	26 min
Apr 27, 1:14 AM CDT	Severe Thunderstorm Warning	TOP	31 min
Apr 27, 1:39 AM CDT	Mesoscale Discussion	SPC	96 min
Apr 27, 1:58 AM CDT	Severe Thunderstorm Warning	TOP	47 min
Apr 28, 1:29 PM CDT	Frost Advisory	TOP	20 hr
May 1, 1:33 PM CDT	Frost Advisory	TOP	18 hr
May 4, 8:53 PM CDT	Mesoscale Discussion	SPC	2 hr
May 14, 7:04 PM CDT	Mesoscale Discussion	SPC	56 min
May 14, 7:25 PM CDT	Severe Thunderstorm Warning	TOP	50 min
May 14, 7:27 PM CDT	Severe Thunderstorm Watch	SPC	112 min
May 16, 12:17 PM CDT	Wind Advisory	TOP	33 hr
May 16, 5:08 PM CDT	Severe Thunderstorm Watch	SPC	9 hr
May 16, 11:53 PM CDT	Severe Thunderstorm Warning Considerable damage threat	TOP	37 min
May 17, 12:06 PM CDT	Flood Watch	TOP	38 hr
May 17, 2:45 PM CDT	Mesoscale Discussion	SPC	60 min
May 17, 3:16 PM CDT	Tornado Watch	SPC	8 hr
May 17, 5:13 PM CDT	Mesoscale Discussion	SPC	62 min
May 17, 6:53 PM CDT	Mesoscale Discussion	SPC	67 min
May 17, 7:30 PM CDT	Severe Thunderstorm Warning Considerable damage threat	TOP	45 min
May 17, 7:38 PM CDT	Tornado Warning	TOP	26 min
May 17, 8:03 PM CDT	Severe Thunderstorm Warning Considerable damage threat	TOP	42 min
May 17, 8:16 PM CDT	Severe Thunderstorm Warning Considerable damage threat	TOP	44 min
May 17, 8:57 PM CDT	Severe Thunderstorm Warning Considerable damage threat	TOP	48 min
May 17, 9:40 PM CDT	Areal Flood Advisory	TOP	99 min
May 17, 9:41 PM CDT	Severe Thunderstorm Warning Considerable damage threat	TOP	34 min
May 17, 10:13 PM CDT	Severe Thunderstorm Warning	TOP	18 min
May 17, 11:19 PM CDT	Flash Flood Warning	TOP	3 hr
May 17, 11:37 PM CDT	Severe Thunderstorm Warning	TOP	38 min
May 18, 12:06 AM CDT	Severe Thunderstorm Warning	TOP	24 min
May 18, 2:37 AM CDT	Areal Flood Advisory	TOP	4 hr
May 18, 4:47 AM CDT	River Flood Warning	TOP	5 hr
May 18, 11:59 AM CDT	Mesoscale Discussion	SPC	2 hr
May 18, 12:50 PM CDT	Tornado Watch PDS	SPC	7 hr
May 18, 2:05 PM CDT	Severe Thunderstorm Warning Considerable damage threat	TOP	55 min
May 18, 2:07 PM CDT	Mesoscale Discussion	SPC	83 min
May 18, 2:17 PM CDT	Tornado Warning	TOP	43 min
May 18, 2:50 PM CDT	Tornado Warning	TOP	40 min
May 18, 3:10 PM CDT	Severe Thunderstorm Warning	TOP	35 min
May 18, 3:40 PM CDT	Severe Thunderstorm Warning	TOP	35 min
May 18, 4:04 PM CDT	Tornado Warning	TOP	56 min
May 18, 4:10 PM CDT	Severe Thunderstorm Warning	TOP	35 min
May 18, 4:33 PM CDT	Tornado Warning	TOP	42 min
May 18, 5:11 PM CDT	Severe Thunderstorm Warning	TOP	49 min
May 29, 5:43 PM CDT	River Flood Warning	TOP	18 hr
May 29, 11:12 PM CDT	Special Weather Statement	TOP	18 min
May 30, 3:11 AM CDT	Special Weather Statement	TOP	34 min
May 30, 2:28 PM CDT	Mesoscale Discussion	SPC	3 hr
May 30, 3:34 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
May 30, 7:29 PM CDT	Mesoscale Discussion	SPC	2 hr
May 30, 7:38 PM CDT	Special Weather Statement	TOP	52 min
May 30, 9:25 PM CDT	Mesoscale Discussion	SPC	2 hr
May 31, 6:13 AM CDT	River Flood Warning	TOP	50 hr
Jun 2, 1:46 AM CDT	Special Weather Statement	TOP	29 min
Jun 3, 9:04 PM CDT	Areal Flood Advisory	TOP	3 hr
Jun 3, 10:03 PM CDT	Areal Flood Advisory	TOP	6 hr
Jun 4, 12:55 AM CDT	River Flood Warning	TOP	4 days
Jun 4, 3:45 AM CDT	Flood Watch	TOP	24 hr
Jun 4, 9:23 AM CDT	River Flood Warning	TOP	20 hr
Jun 4, 9:23 AM CDT	River Flood Warning	TOP	32 hr
Jun 4, 9:23 AM CDT	River Flood Warning	TOP	12 hr
Jun 4, 1:29 PM CDT	Mesoscale Discussion	SPC	3 hr
Jun 8, 2:00 AM CDT	Heat Advisory	TOP	41 hr
Jun 8, 12:58 PM CDT	Flood Watch	TOP	18 hr
Jun 8, 6:02 PM CDT	Mesoscale Discussion	SPC	88 min
Jun 8, 7:34 PM CDT	Severe Thunderstorm Watch	SPC	5 hr
Jun 8, 8:15 PM CDT	Severe Thunderstorm Warning	TOP	60 min
Jun 8, 8:41 PM CDT	Severe Thunderstorm Warning	TOP	49 min
Jun 8, 8:55 PM CDT	Mesoscale Discussion	SPC	2 hr
Jun 8, 9:14 PM CDT	Severe Thunderstorm Warning Considerable damage threat	TOP	46 min
Jun 8, 9:54 PM CDT	Flash Flood Warning	TOP	9 hr
Jun 8, 9:57 PM CDT	Areal Flood Advisory	TOP	5 hr
Jun 8, 11:53 PM CDT	River Flood Warning	TOP	4 days
Jun 8, 11:56 PM CDT	River Flood Warning	TOP	4 days
Jun 9, 12:27 AM CDT	Flash Flood Warning Considerable damage threat	TOP	6 hr
Jun 9, 1:55 AM CDT	Mesoscale Discussion	SPC	2 hr
Jun 9, 2:48 AM CDT	Flash Flood Warning	TOP	4 hr
Jun 9, 6:23 AM CDT	Areal Flood Warning	TOP	6 hr
Jun 9, 12:01 PM CDT	Areal Flood Warning	TOP	6 hr
Jun 9, 5:14 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
Jun 10, 2:12 PM CDT	Tornado Watch	SPC	9 hr
Jun 10, 5:57 PM CDT	Special Weather Statement	TOP	33 min
Jun 10, 6:05 PM CDT	Severe Thunderstorm Warning	TOP	40 min
Jun 10, 7:11 PM CDT	Areal Flood Advisory	TOP	22 min
Jun 10, 7:33 PM CDT	Flash Flood Warning	TOP	5 hr
Jun 13, 1:49 PM CDT	Mesoscale Discussion	SPC	116 min
Jun 13, 2:30 PM CDT	Tornado Watch	SPC	9 hr
Jun 13, 5:58 PM CDT	Mesoscale Discussion	SPC	92 min
Jun 13, 7:03 PM CDT	Severe Thunderstorm Warning	TOP	42 min
Jun 19, 2:23 AM CDT	Flood Watch	TOP	55 hr
Jun 20, 7:22 PM CDT	Severe Thunderstorm Watch	SPC	8 hr
Jun 20, 11:24 PM CDT	Mesoscale Discussion	SPC	96 min
Jun 21, 12:28 AM CDT	Areal Flood Advisory	TOP	15 min
Jun 21, 12:43 AM CDT	Flash Flood Warning	TOP	4 hr
Jun 21, 1:44 AM CDT	River Flood Warning	TOP	14 hr
Jun 24, 11:53 AM CDT	Flood Watch	TOP	40 hr
Jun 25, 8:05 PM CDT	Mesoscale Discussion	SPC	85 min
Jun 27, 1:27 AM CDT	Extreme Heat Watch	TOP	11 hr
Jun 27, 12:48 PM CDT	Extreme Heat Warning	TOP	3 days
Jun 30, 9:20 PM CDT	Heat Advisory	TOP	5 hr
Jun 30, 10:38 PM CDT	Special Weather Statement	TOP	37 min
Jul 1, 1:56 AM CDT	Heat Advisory	TOP	3 days
Jul 3, 6:37 PM CDT	Mesoscale Discussion	SPC	113 min
Jul 3, 7:00 PM CDT	Severe Thunderstorm Watch	SPC	4 hr
Jul 3, 8:41 PM CDT	Severe Thunderstorm Warning	TOP	49 min
Jul 3, 9:16 PM CDT	Mesoscale Discussion	SPC	119 min
Jul 3, 10:27 PM CDT	Special Weather Statement	TOP	33 min
Jul 8, 10:08 PM CDT	Mesoscale Discussion	SPC	2 hr
Jul 10, 1:28 AM CDT	Special Weather Statement	TOP	32 min
Jul 10, 1:47 AM CDT	Severe Thunderstorm Warning	TOP	28 min
Jul 19, 12:49 AM CDT	Heat Advisory	TOP	43 hr
Jul 23, 10:49 PM CDT	Areal Flood Advisory	TOP	3 hr
Jul 23, 10:58 PM CDT	Mesoscale Discussion	SPC	62 min
Jul 24, 12:37 AM CDT	Areal Flood Warning	TOP	37 min
Jul 24, 1:14 AM CDT	Flash Flood Warning	TOP	3 hr
Jul 24, 1:51 AM CDT	Extreme Heat Watch	TOP	3 days
Jul 24, 4:23 AM CDT	River Flood Warning	TOP	47 hr
Jul 24, 11:33 AM CDT	Heat Advisory	TOP	48 hr
Jul 24, 11:33 AM CDT	Extreme Heat Warning	TOP	3 days
Jul 26, 2:08 AM CDT	Heat Advisory	TOP	9 hr
Aug 6, 11:39 PM CDT	Mesoscale Discussion	SPC	2 hr
Aug 8, 4:53 PM CDT	Mesoscale Discussion	SPC	97 min
Aug 9, 12:29 AM CDT	Heat Advisory	TOP	20 hr
Aug 10, 1:34 PM CDT	Heat Advisory	TOP	54 hr
Aug 11, 12:09 PM CDT	Extreme Heat Warning	TOP	4 days
Aug 13, 5:12 PM CDT	Severe Thunderstorm Warning	TOP	33 min
Aug 13, 6:13 PM CDT	Special Weather Statement	TOP	32 min
Aug 13, 6:22 PM CDT	Severe Thunderstorm Warning	TOP	38 min
Aug 16, 2:13 AM CDT	Mesoscale Discussion	SPC	2 hr
Aug 16, 2:32 AM CDT	Special Weather Statement	TOP	28 min
Aug 18, 7:46 PM CDT	Mesoscale Discussion	SPC	2 hr
Aug 20, 3:48 AM CDT	Dense Fog Advisory	TOP	6 hr
Aug 21, 1:35 PM CDT	Mesoscale Discussion	SPC	115 min
Aug 21, 4:03 PM CDT	Special Weather Statement	TOP	27 min
Aug 30, 11:47 AM CDT	Heat Advisory	TOP	31 hr
Sep 1, 11:47 AM CDT	Heat Advisory	TOP	48 hr
Sep 3, 11:34 AM CDT	Extreme Heat Warning	TOP	5 days
Sep 8, 5:08 PM CDT	Mesoscale Discussion	SPC	2 hr
Sep 16, 11:14 PM CDT	Dense Fog Advisory	TOP	11 hr
Sep 19, 2:34 PM CDT	Mesoscale Discussion	SPC	116 min
Sep 19, 3:22 PM CDT	Severe Thunderstorm Watch	SPC	8 hr
Sep 19, 5:06 PM CDT	Severe Thunderstorm Warning	TOP	54 min
Sep 19, 6:06 PM CDT	Severe Thunderstorm Warning	TOP	39 min
Sep 19, 6:29 PM CDT	Severe Thunderstorm Warning	TOP	31 min
Sep 19, 7:05 PM CDT	Mesoscale Discussion	SPC	85 min
Sep 20, 1:46 AM CDT	Special Weather Statement	TOP	44 min
Sep 20, 2:28 AM CDT	Special Weather Statement	TOP	47 min

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	36
Tornado Warning	5
Severe Thunderstorm Watch	12
Tornado Watch	6
Mesoscale Discussion	41
Special Weather Statement	16
Flooding
Areal Flood Warning	3
Flash Flood Warning	7
River Flood Warning	11
Flood Watch	5
Areal Flood Advisory	8
Winter
Winter Storm Warning	1
Winter Storm Watch	1
Winter Weather Advisory	3
Heat
Extreme Heat Warning	4
Extreme Heat Watch	2
Heat Advisory	10
Cold
Cold Weather Advisory	1
Frost Advisory	2
Wind and dust
High Wind Warning	1
High Wind Watch	1
Wind Advisory	3
Fire
Red Flag Warning	11
Fire Weather Watch	5
Fog and smoke
Dense Fog Advisory	6

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record Forecast The radar archive 2025

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.