Weather alerts in Sherman County, Kansas, 2015

228 weather alerts in 2015, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Sherman County and its neighbors

Each county as a circle sized by its count in 2015. Tap one for its archive.

Alerts: 228
Warnings: 68
Watches: 34
Advisories: 26
Busiest month: April45 alerts
Busiest day: April 18, 201515 alerts

Over time

By month

Warning verification

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

1 of 5 tornado warnings covering Sherman County in 2015 had a tornado report inside them; 1 of 1 tornado reports fell inside a warning, on average 6 minutes after it went out.

Sherman County, 2015

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	5	1	80%	1	100%	6 min
Severe thunderstorm warnings	49	17	65%	20	65%	21 min
Flash flood warnings	3	1	67%	0

Each office's whole area, 2015

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Goodland, KS: tornado warnings	86	28	67%	66	77%	19 min
NWS Goodland, KS: severe thunderstorm warnings	404	112	72%	219	72%	23 min
NWS Goodland, KS: flash flood warnings	63	15	76%	32	59%	57 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, Mountain Time. Each opens its own page with the text, the map, the radar and the sounding.

Issued	Product	Office	Lasted
Jan 2, 1:52 PM MST	Winter Weather Advisory	GLD	33 hr
Jan 3, 11:56 AM MST	Wind Chill Advisory	GLD	21 hr
Feb 19, 2:13 PM MST	Winter Storm Watch	GLD	24 hr
Feb 20, 1:54 PM MST	Winter Storm Warning	GLD	46 hr
Feb 20, 1:54 PM MST	Winter Weather Advisory	GLD	55 hr
Mar 13, 5:40 PM MDT	Fire Weather Watch	GLD	34 hr
Mar 14, 1:24 PM MDT	Red Flag Warning	GLD	30 hr
Mar 22, 2:07 PM MDT	Fire Weather Watch	GLD	13 hr
Mar 23, 2:55 AM MDT	Red Flag Warning	GLD	41 hr
Apr 1, 6:39 PM MDT	Special Weather Statement	GLD	51 min
Apr 1, 6:58 PM MDT	Severe Thunderstorm Warning	GLD	36 min
Apr 2, 6:20 PM MDT	Mesoscale Discussion	SPC	85 min
Apr 5, 2:39 PM MDT	Red Flag Warning	GLD	28 hr
Apr 7, 7:47 AM MDT	Dense Fog Advisory	GLD	2 hr
Apr 12, 4:21 AM MDT	Red Flag Warning	GLD	14 hr
Apr 13, 1:50 PM MDT	Fire Weather Watch	GLD	14 hr
Apr 13, 1:50 PM MDT	Red Flag Warning	GLD	30 hr
Apr 15, 1:41 PM MDT	Mesoscale Discussion	SPC	3 hr
Apr 15, 4:47 PM MDT	Severe Thunderstorm Warning	GLD	43 min
Apr 15, 4:49 PM MDT	Mesoscale Discussion	SPC	2 hr
Apr 15, 6:03 PM MDT	Special Weather Statement	GLD	27 min
Apr 15, 6:09 PM MDT	Severe Thunderstorm Warning	GLD	51 min
Apr 15, 6:29 PM MDT	Severe Thunderstorm Warning	GLD	32 min
Apr 15, 6:43 PM MDT	Severe Thunderstorm Warning	GLD	62 min
Apr 15, 7:25 PM MDT	Severe Thunderstorm Warning	GLD	50 min
Apr 15, 7:44 PM MDT	Severe Thunderstorm Warning	GLD	61 min
Apr 15, 8:07 PM MDT	Severe Thunderstorm Warning	GLD	38 min
Apr 17, 11:58 AM MDT	Mesoscale Discussion	SPC	92 min
Apr 17, 4:05 PM MDT	Mesoscale Discussion	SPC	2 hr
Apr 17, 4:37 PM MDT	Tornado Watch	SPC	7 hr
Apr 17, 5:49 PM MDT	Tornado Warning	GLD	26 min
Apr 17, 6:02 PM MDT	Tornado Warning Tornado observed	GLD	28 min
Apr 17, 6:06 PM MDT	Mesoscale Discussion	SPC	84 min
Apr 17, 6:30 PM MDT	Special Weather Statement	GLD	30 min
Apr 17, 6:43 PM MDT	Severe Thunderstorm Warning	GLD	24 min
Apr 17, 7:34 PM MDT	Special Weather Statement	GLD	26 min
Apr 17, 7:56 PM MDT	Mesoscale Discussion	SPC	94 min
Apr 17, 8:07 PM MDT	Special Weather Statement	GLD	38 min
Apr 17, 8:55 PM MDT	Special Weather Statement	GLD	35 min
Apr 18, 4:51 AM MDT	Dense Fog Advisory	GLD	4 hr
Apr 18, 1:49 PM MDT	Mesoscale Discussion	SPC	116 min
Apr 18, 1:57 PM MDT	Severe Thunderstorm Warning	GLD	48 min
Apr 18, 2:08 PM MDT	Tornado Watch	SPC	6 hr
Apr 18, 2:44 PM MDT	Severe Thunderstorm Warning	GLD	31 min
Apr 18, 4:00 PM MDT	Special Weather Statement	GLD	15 min
Apr 18, 5:07 PM MDT	Mesoscale Discussion	SPC	53 min
Apr 18, 7:27 PM MDT	Mesoscale Discussion	SPC	63 min
Apr 23, 3:36 PM MDT	Special Weather Statement	GLD	39 min
Apr 23, 3:40 PM MDT	Severe Thunderstorm Warning	GLD	50 min
Apr 23, 3:48 PM MDT	Tornado Warning	GLD	27 min
Apr 23, 4:29 PM MDT	Severe Thunderstorm Warning	GLD	39 min
Apr 24, 1:36 PM MDT	Severe Thunderstorm Warning	GLD	39 min
Apr 24, 2:26 PM MDT	Severe Thunderstorm Warning	GLD	49 min
Apr 24, 2:41 PM MDT	Tornado Watch	SPC	6 hr
May 6, 11:44 AM MDT	Special Weather Statement	GLD	61 min
May 6, 12:46 PM MDT	Special Weather Statement	GLD	59 min
May 6, 5:31 PM MDT	Mesoscale Discussion	SPC	89 min
May 9, 10:26 AM MDT	Special Weather Statement	GLD	49 min
May 9, 10:50 AM MDT	Special Weather Statement	GLD	40 min
May 9, 11:40 AM MDT	Mesoscale Discussion	SPC	65 min
May 9, 11:55 AM MDT	Tornado Watch	SPC	11 hr
May 9, 2:34 PM MDT	Mesoscale Discussion	SPC	56 min
May 9, 5:16 PM MDT	Mesoscale Discussion	SPC	119 min
May 9, 8:05 PM MDT	Severe Thunderstorm Warning	GLD	55 min
May 9, 8:37 PM MDT	Flash Flood Warning	GLD	3 hr
May 9, 8:52 PM MDT	Special Weather Statement	GLD	23 min
May 10, 3:27 AM MDT	Frost Advisory	GLD	30 hr
May 10, 2:35 PM MDT	Frost Advisory	GLD	41 hr
May 15, 9:23 PM MDT	Severe Thunderstorm Warning	GLD	32 min
May 23, 6:13 PM MDT	Special Weather Statement	GLD	47 min
May 24, 12:36 AM MDT	Special Weather Statement	GLD	54 min
May 24, 4:00 PM MDT	Tornado Watch	SPC	10 hr
May 24, 6:01 PM MDT	Special Weather Statement	GLD	44 min
May 24, 6:05 PM MDT	Mesoscale Discussion	SPC	115 min
May 24, 6:56 PM MDT	Special Weather Statement	GLD	34 min
May 27, 12:55 PM MDT	Mesoscale Discussion	SPC	95 min
May 27, 1:26 PM MDT	Tornado Watch	SPC	7 hr
May 27, 2:55 PM MDT	Severe Thunderstorm Warning	GLD	65 min
May 27, 4:57 PM MDT	Special Weather Statement	GLD	33 min
May 27, 5:16 PM MDT	Mesoscale Discussion	SPC	119 min
May 27, 10:03 PM MDT	Flash Flood Watch	GLD	21 hr
May 28, 12:39 PM MDT	Mesoscale Discussion	SPC	2 hr
May 28, 1:18 PM MDT	Severe Thunderstorm Watch	SPC	7 hr
May 28, 4:33 PM MDT	Mesoscale Discussion	SPC	87 min
May 29, 1:52 PM MDT	Severe Thunderstorm Warning	GLD	29 min
May 29, 2:59 PM MDT	Severe Thunderstorm Warning	GLD	46 min
May 29, 3:38 PM MDT	Special Weather Statement	GLD	52 min
May 31, 2:50 PM MDT	Mesoscale Discussion	SPC	115 min
May 31, 4:56 PM MDT	Special Weather Statement	GLD	49 min
May 31, 5:17 PM MDT	Severe Thunderstorm Warning	GLD	58 min
May 31, 5:37 PM MDT	Mesoscale Discussion	SPC	53 min
May 31, 6:15 PM MDT	Severe Thunderstorm Warning	GLD	60 min
Jun 3, 10:28 PM MDT	Mesoscale Discussion	SPC	62 min
Jun 3, 10:59 PM MDT	Severe Thunderstorm Watch	SPC	6 hr
Jun 4, 1:05 AM MDT	Severe Thunderstorm Warning	GLD	55 min
Jun 4, 1:41 AM MDT	Severe Thunderstorm Warning	GLD	64 min
Jun 4, 7:31 AM MDT	Dense Fog Advisory	GLD	89 min
Jun 4, 2:28 PM MDT	Mesoscale Discussion	SPC	92 min
Jun 4, 6:06 PM MDT	Tornado Watch	SPC	5 hr
Jun 4, 11:47 PM MDT	Dense Fog Advisory	GLD	9 hr
Jun 5, 4:22 PM MDT	Mesoscale Discussion	SPC	53 min
Jun 5, 4:44 PM MDT	Tornado Watch	SPC	7 hr
Jun 5, 5:06 PM MDT	Flash Flood Watch	GLD	7 hr
Jun 5, 5:59 PM MDT	Mesoscale Discussion	SPC	61 min
Jun 5, 6:18 PM MDT	Severe Thunderstorm Warning	GLD	31 min
Jun 5, 6:38 PM MDT	Tornado Warning	GLD	52 min
Jun 5, 6:39 PM MDT	Tornado Warning	GLD	51 min
Jun 5, 7:13 PM MDT	Severe Thunderstorm Warning	GLD	62 min
Jun 5, 7:21 PM MDT	Flash Flood Warning	GLD	3 hr
Jun 5, 7:43 PM MDT	Severe Thunderstorm Warning	GLD	48 min
Jun 6, 2:14 PM MDT	Mesoscale Discussion	SPC	91 min
Jun 6, 4:25 PM MDT	Severe Thunderstorm Watch	SPC	5 hr
Jun 6, 6:35 PM MDT	Severe Thunderstorm Warning	GLD	35 min
Jun 6, 6:55 PM MDT	Mesoscale Discussion	SPC	95 min
Jun 6, 7:28 PM MDT	Severe Thunderstorm Warning	GLD	62 min
Jun 6, 8:27 PM MDT	Special Weather Statement	GLD	48 min
Jun 6, 9:33 PM MDT	Mesoscale Discussion	SPC	57 min
Jun 7, 1:36 PM MDT	Mesoscale Discussion	SPC	114 min
Jun 7, 8:25 PM MDT	Special Weather Statement	GLD	20 min
Jun 10, 1:02 PM MDT	Mesoscale Discussion	SPC	118 min
Jun 10, 3:29 PM MDT	Severe Thunderstorm Warning	GLD	61 min
Jun 14, 6:29 AM MDT	Dense Fog Advisory	GLD	3 hr
Jun 16, 8:00 PM MDT	Mesoscale Discussion	SPC	90 min
Jun 19, 5:46 AM MDT	Dense Fog Advisory	GLD	3 hr
Jun 23, 10:26 PM MDT	Mesoscale Discussion	SPC	2 hr
Jun 25, 4:25 PM MDT	Mesoscale Discussion	SPC	95 min
Jun 25, 8:23 PM MDT	Mesoscale Discussion	SPC	67 min
Jun 25, 8:49 PM MDT	Severe Thunderstorm Watch	SPC	5 hr
Jun 25, 9:47 PM MDT	Special Weather Statement	GLD	28 min
Jun 25, 10:11 PM MDT	Special Weather Statement	GLD	34 min
Jun 25, 10:21 PM MDT	Severe Thunderstorm Warning	GLD	39 min
Jun 25, 10:48 PM MDT	Mesoscale Discussion	SPC	87 min
Jun 29, 3:23 PM MDT	Special Weather Statement	GLD	52 min
Jul 5, 6:01 PM MDT	Special Weather Statement	GLD	44 min
Jul 5, 7:14 PM MDT	Severe Thunderstorm Warning	GLD	48 min
Jul 5, 9:23 PM MDT	Severe Thunderstorm Warning	GLD	22 min
Jul 11, 1:53 PM MDT	Mesoscale Discussion	SPC	3 hr
Jul 11, 5:51 PM MDT	Mesoscale Discussion	SPC	84 min
Jul 11, 6:22 PM MDT	Special Weather Statement	GLD	38 min
Jul 14, 2:20 PM MDT	Mesoscale Discussion	SPC	85 min
Jul 14, 7:27 PM MDT	Severe Thunderstorm Warning	GLD	48 min
Jul 14, 7:43 PM MDT	Mesoscale Discussion	SPC	2 hr
Jul 14, 8:11 PM MDT	Severe Thunderstorm Warning	GLD	46 min
Jul 14, 9:03 PM MDT	Special Weather Statement	GLD	42 min
Jul 18, 6:41 PM MDT	Severe Thunderstorm Watch	SPC	6 hr
Jul 18, 8:45 PM MDT	Severe Thunderstorm Warning	GLD	60 min
Jul 18, 9:54 PM MDT	Mesoscale Discussion	SPC	96 min
Jul 18, 10:54 PM MDT	Severe Thunderstorm Warning	GLD	51 min
Jul 19, 1:18 PM MDT	Mesoscale Discussion	SPC	117 min
Jul 19, 2:04 PM MDT	Flash Flood Watch	GLD	6 hr
Jul 19, 2:37 PM MDT	Severe Thunderstorm Watch	SPC	8 hr
Jul 19, 6:06 PM MDT	Mesoscale Discussion	SPC	114 min
Jul 23, 1:34 PM MDT	Mesoscale Discussion	SPC	56 min
Jul 23, 2:04 PM MDT	Severe Thunderstorm Watch	SPC	8 hr
Jul 23, 5:55 PM MDT	Mesoscale Discussion	SPC	2 hr
Jul 24, 2:57 PM MDT	Mesoscale Discussion	SPC	93 min
Jul 24, 5:03 PM MDT	Special Weather Statement	GLD	42 min
Jul 24, 5:31 PM MDT	Special Weather Statement	GLD	29 min
Jul 24, 5:36 PM MDT	Severe Thunderstorm Warning	GLD	24 min
Jul 24, 5:46 PM MDT	Special Weather Statement	GLD	29 min
Jul 24, 7:35 PM MDT	Flash Flood Warning	GLD	3 hr
Jul 24, 10:48 PM MDT	Special Weather Statement	GLD	42 min
Jul 26, 1:07 PM MDT	Severe Thunderstorm Watch	SPC	9 hr
Jul 26, 4:22 PM MDT	Mesoscale Discussion	SPC	83 min
Jul 26, 5:13 PM MDT	Severe Thunderstorm Warning	GLD	62 min
Jul 26, 5:35 PM MDT	Special Weather Statement	GLD	25 min
Jul 26, 6:39 PM MDT	Severe Thunderstorm Warning	GLD	36 min
Jul 31, 4:51 PM MDT	Special Weather Statement	GLD	24 min
Aug 4, 10:58 AM MDT	Mesoscale Discussion	SPC	2 hr
Aug 4, 12:34 PM MDT	Severe Thunderstorm Watch	SPC	7 hr
Aug 4, 1:23 PM MDT	Severe Thunderstorm Warning	GLD	52 min
Aug 4, 2:29 PM MDT	Mesoscale Discussion	SPC	2 hr
Aug 4, 2:56 PM MDT	Special Weather Statement	GLD	49 min
Aug 5, 2:08 AM MDT	Dense Fog Advisory	GLD	8 hr
Aug 7, 6:36 AM MDT	Dense Fog Advisory	GLD	2 hr
Aug 7, 2:12 PM MDT	Mesoscale Discussion	SPC	3 hr
Aug 7, 3:05 PM MDT	Severe Thunderstorm Watch	SPC	8 hr
Aug 7, 6:27 PM MDT	Mesoscale Discussion	SPC	2 hr
Aug 7, 6:34 PM MDT	Special Weather Statement	GLD	41 min
Aug 7, 6:51 PM MDT	Severe Thunderstorm Warning	GLD	54 min
Aug 7, 7:20 PM MDT	Severe Thunderstorm Warning	GLD	55 min
Aug 8, 2:58 PM MDT	Mesoscale Discussion	SPC	92 min
Aug 8, 9:44 PM MDT	Special Weather Statement	GLD	31 min
Aug 16, 8:49 AM MDT	Flash Flood Watch	GLD	12 hr
Aug 16, 1:42 PM MDT	Mesoscale Discussion	SPC	2 hr
Aug 16, 3:42 PM MDT	Severe Thunderstorm Warning	GLD	18 min
Aug 16, 5:12 PM MDT	Severe Thunderstorm Warning	GLD	33 min
Aug 16, 5:46 PM MDT	Severe Thunderstorm Warning	GLD	46 min
Aug 17, 6:31 AM MDT	Dense Fog Advisory	GLD	3 hr
Aug 17, 4:41 PM MDT	Mesoscale Discussion	SPC	94 min
Aug 21, 12:55 PM MDT	Mesoscale Discussion	SPC	2 hr
Aug 21, 2:57 PM MDT	Severe Thunderstorm Warning	GLD	33 min
Aug 31, 9:28 PM MDT	Special Weather Statement	GLD	47 min
Sep 1, 6:27 PM MDT	Special Weather Statement	GLD	33 min
Sep 1, 6:46 PM MDT	Special Weather Statement	GLD	29 min
Sep 7, 5:17 AM MDT	Dense Fog Advisory	GLD	4 hr
Sep 7, 5:50 PM MDT	Severe Thunderstorm Watch	SPC	2 hr
Sep 14, 1:38 PM MDT	Red Flag Warning	GLD	28 hr
Sep 15, 3:11 PM MDT	Fire Weather Watch	GLD	11 hr
Sep 26, 1:18 AM MDT	Dense Fog Advisory	GLD	3 hr
Sep 30, 2:15 AM MDT	Dense Fog Advisory	GLD	7 hr
Oct 5, 7:28 AM MDT	Dense Fog Advisory	GLD	2 hr
Oct 5, 10:52 PM MDT	Dense Fog Advisory	GLD	12 hr
Oct 12, 11:59 AM MDT	Red Flag Warning	GLD	6 hr
Oct 14, 2:57 PM MDT	Frost Advisory	GLD	42 hr
Oct 14, 2:57 PM MDT	Freeze Watch	GLD	12 hr
Oct 23, 2:58 AM MDT	Frost Advisory	GLD	30 hr
Oct 27, 1:46 PM MDT	Freeze Watch	GLD	14 hr
Oct 27, 1:46 PM MDT	Freeze Warning	GLD	43 hr
Nov 9, 2:08 PM MST	Blizzard Watch	GLD	12 hr
Nov 10, 2:33 AM MST	Blizzard Warning	GLD	34 hr
Nov 10, 9:15 PM MST	Dense Fog Advisory	GLD	7 hr
Nov 15, 2:51 PM MST	Blizzard Watch	GLD	22 hr
Nov 16, 4:02 AM MST	Blizzard Warning	GLD	47 hr
Nov 16, 12:58 PM MST	Mesoscale Discussion	SPC	3 hr
Nov 16, 2:15 PM MST	Special Weather Statement	GLD	30 min
Nov 16, 2:26 PM MST	Severe Thunderstorm Warning	GLD	38 min
Nov 16, 2:34 PM MST	Tornado Watch	SPC	6 hr
Nov 16, 3:48 PM MST	Special Weather Statement	GLD	27 min
Nov 16, 3:52 PM MST	Severe Thunderstorm Warning	GLD	38 min
Nov 16, 4:20 PM MST	Mesoscale Discussion	SPC	115 min
Nov 17, 9:27 AM MST	Mesoscale Discussion	SPC	4 hr
Nov 17, 2:43 PM MST	Mesoscale Discussion	SPC	4 hr
Nov 24, 2:00 PM MST	Winter Weather Advisory	GLD	57 hr
Nov 28, 2:06 PM MST	Winter Weather Advisory	GLD	45 hr
Dec 11, 2:10 PM MST	Winter Storm Watch	GLD	20 hr
Dec 12, 2:53 AM MST	Winter Weather Advisory	GLD	33 hr
Dec 14, 2:27 PM MST	Winter Weather Advisory	GLD	28 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	49
Tornado Warning	5
Severe Thunderstorm Watch	11
Tornado Watch	9
Mesoscale Discussion	58
Special Weather Statement	42
Flooding
Flash Flood Warning	3
Flash Flood Watch	4
Winter
Blizzard Warning	2
Winter Storm Warning	1
Blizzard Watch	2
Winter Storm Watch	2
Winter Weather Advisory	6
Cold
Freeze Warning	1
Freeze Watch	2
Frost Advisory	4
Wind Chill Advisory	1
Fire
Red Flag Warning	7
Fire Weather Watch	4
Fog and smoke
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 2014 2016

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.