Weather alerts in Sherman County, Kansas, 2018

249 weather alerts in 2018, 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 2018. Tap one for its archive.

Alerts: 249
Warnings: 95
Watches: 37
Advisories: 29
Busiest month: June56 alerts
Busiest day: July 27, 201811 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 1 tornado warnings covering Sherman County in 2018 had a tornado report inside them.

Sherman County, 2018

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	1	0	100%	0
Severe thunderstorm warnings	56	27	52%	64	72%	22 min
Flash flood warnings	3	1	67%	4	25%	29 min

Each office's whole area, 2018

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Goodland, KS: tornado warnings	35	3	91%	14	36%	9 min
NWS Goodland, KS: severe thunderstorm warnings	406	139	66%	464	70%	21 min
NWS Goodland, KS: flash flood warnings	59	23	61%	50	68%	73 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 9, 1:42 PM MST	Winter Weather Advisory	GLD	41 hr
Jan 14, 1:38 PM MST	Wind Chill Advisory	GLD	44 hr
Jan 19, 1:30 PM MST	Winter Storm Watch	GLD	13 hr
Jan 20, 2:04 AM MST	Winter Storm Warning	GLD	24 hr
Jan 21, 2:16 AM MST	Blizzard Warning	GLD	33 hr
Jan 21, 2:54 PM MST	Mesoscale Discussion	SPC	6 hr
Feb 5, 2:02 PM MST	Winter Weather Advisory	GLD	23 hr
Feb 9, 2:28 PM MST	Winter Weather Advisory	GLD	31 hr
Feb 17, 2:33 AM MST	Fire Weather Watch	GLD	22 hr
Feb 17, 2:26 PM MST	Red Flag Warning	GLD	28 hr
Feb 19, 2:16 PM MST	Winter Weather Advisory	GLD	15 hr
Feb 20, 3:50 AM MST	Wind Chill Advisory	GLD	5 hr
Feb 20, 2:43 PM MST	Wind Chill Advisory	GLD	18 hr
Feb 23, 2:02 AM MST	Winter Weather Advisory	GLD	33 hr
Feb 23, 3:15 AM MST	Dense Fog Advisory	GLD	5 hr
Feb 25, 2:15 PM MST	Red Flag Warning	GLD	28 hr
Feb 28, 2:35 PM MST	Fire Weather Watch	GLD	37 hr
Mar 1, 2:15 PM MST	Red Flag Warning	GLD	28 hr
Mar 2, 2:15 PM MST	Fire Weather Watch	GLD	23 hr
Mar 2, 2:15 PM MST	Red Flag Warning	GLD	28 hr
Mar 3, 1:26 PM MST	Red Flag Warning	GLD	29 hr
Mar 3, 1:54 PM MST	High Wind Watch	GLD	23 hr
Mar 3, 2:33 PM MST	Fire Weather Watch	GLD	19 hr
Mar 4, 10:00 AM MST	Red Flag Warning	GLD	32 hr
Mar 4, 1:09 PM MST	High Wind Warning	GLD	28 hr
Mar 4, 2:16 PM MST	High Wind Watch	GLD	19 hr
Mar 5, 9:27 AM MST	High Wind Warning	GLD	32 hr
Mar 5, 9:42 AM MST	Red Flag Warning	GLD	31 hr
Mar 6, 11:05 AM MST	Dust Storm Warning	GLD	6 hr
Mar 8, 2:22 PM MST	Fire Weather Watch	GLD	12 hr
Mar 9, 2:00 AM MST	Red Flag Warning	GLD	15 hr
Mar 14, 1:55 PM MDT	Red Flag Warning	GLD	29 hr
Mar 15, 3:10 PM MDT	High Wind Warning	GLD	24 hr
Mar 15, 8:53 PM MDT	High Wind Warning	GLD	3 hr
Mar 18, 1:58 PM MDT	Winter Weather Advisory	GLD	25 hr
Mar 18, 6:56 PM MDT	Special Weather Statement	GLD	34 min
Mar 22, 2:55 PM MDT	Red Flag Warning	GLD	28 hr
Mar 23, 1:16 PM MDT	High Wind Warning	GLD	5 hr
Mar 25, 8:35 AM MDT	Dense Fog Advisory	GLD	3 hr
Mar 25, 2:30 PM MDT	Dense Fog Advisory	GLD	18 hr
Mar 29, 3:37 PM MDT	Special Weather Statement	GLD	23 min
Mar 29, 3:41 PM MDT	Special Weather Statement	GLD	34 min
Mar 29, 5:39 PM MDT	Special Weather Statement	GLD	36 min
Mar 31, 2:34 PM MDT	Fire Weather Watch	GLD	21 hr
Apr 1, 11:28 AM MDT	Red Flag Warning	GLD	32 hr
Apr 1, 2:17 PM MDT	High Wind Watch	GLD	21 hr
Apr 2, 11:09 AM MDT	High Wind Warning	GLD	28 hr
Apr 3, 10:01 AM MDT	Blowing Dust Advisory	GLD	5 hr
Apr 6, 2:13 PM MDT	Winter Weather Advisory	GLD	9 hr
Apr 7, 2:07 AM MDT	Winter Weather Advisory	GLD	24 hr
Apr 9, 12:38 PM MDT	Fire Weather Watch	GLD	13 hr
Apr 9, 12:38 PM MDT	Fire Weather Watch	GLD	13 hr
Apr 10, 2:02 AM MDT	Red Flag Warning	GLD	41 hr
Apr 10, 2:02 AM MDT	Red Flag Warning	GLD	66 hr
Apr 11, 2:59 PM MDT	High Wind Watch	GLD	19 hr
Apr 12, 2:45 AM MDT	Winter Storm Watch	GLD	10 hr
Apr 12, 10:12 AM MDT	High Wind Warning	GLD	55 hr
Apr 12, 12:42 PM MDT	Blizzard Warning	GLD	45 hr
Apr 15, 3:25 PM MDT	Red Flag Warning	GLD	53 hr
Apr 16, 1:39 PM MDT	High Wind Watch	GLD	20 hr
Apr 17, 3:20 AM MDT	High Wind Warning	GLD	24 hr
Apr 17, 4:56 PM MDT	Dust Storm Warning	GLD	5 hr
Apr 28, 2:45 PM MDT	Fire Weather Watch	GLD	22 hr
Apr 29, 1:14 PM MDT	Red Flag Warning	GLD	32 hr
Apr 29, 4:21 PM MDT	Special Weather Statement	GLD	24 min
Apr 29, 4:46 PM MDT	Special Weather Statement	GLD	29 min
Apr 29, 5:02 PM MDT	Severe Thunderstorm Warning	GLD	28 min
May 9, 5:01 PM MDT	Special Weather Statement	GLD	14 min
May 9, 5:10 PM MDT	Mesoscale Discussion	SPC	95 min
May 10, 6:06 PM MDT	Mesoscale Discussion	SPC	114 min
May 14, 4:04 PM MDT	Mesoscale Discussion	SPC	116 min
May 18, 3:02 PM MDT	Severe Thunderstorm Watch	SPC	7 hr
May 18, 5:27 PM MDT	Mesoscale Discussion	SPC	63 min
May 18, 8:02 PM MDT	Severe Thunderstorm Warning	GLD	58 min
May 18, 8:08 PM MDT	Mesoscale Discussion	SPC	67 min
May 18, 8:58 PM MDT	Severe Thunderstorm Warning	GLD	47 min
May 18, 9:26 PM MDT	Flash Flood Warning	GLD	4 hr
May 18, 10:14 PM MDT	Mesoscale Discussion	SPC	46 min
May 20, 10:24 PM MDT	Dense Fog Advisory	GLD	11 hr
May 24, 12:37 PM MDT	Mesoscale Discussion	SPC	113 min
May 24, 1:47 PM MDT	Severe Thunderstorm Watch	SPC	7 hr
May 24, 5:15 PM MDT	Mesoscale Discussion	SPC	60 min
May 24, 5:39 PM MDT	Severe Thunderstorm Warning	GLD	51 min
May 27, 12:38 PM MDT	Mesoscale Discussion	SPC	3 hr
May 27, 1:13 PM MDT	Severe Thunderstorm Watch	SPC	7 hr
May 27, 3:51 PM MDT	Special Weather Statement	GLD	24 min
May 27, 4:30 PM MDT	Mesoscale Discussion	SPC	2 hr
May 27, 5:22 PM MDT	Special Weather Statement	GLD	23 min
May 28, 12:46 PM MDT	Mesoscale Discussion	SPC	59 min
May 28, 1:12 PM MDT	Tornado Watch	SPC	8 hr
May 28, 2:18 PM MDT	Flash Flood Watch	GLD	19 hr
May 28, 4:54 PM MDT	Mesoscale Discussion	SPC	96 min
May 28, 6:39 PM MDT	Special Weather Statement	GLD	36 min
May 28, 6:53 PM MDT	Severe Thunderstorm Warning	GLD	52 min
May 28, 9:37 PM MDT	Special Weather Statement	GLD	23 min
May 29, 1:53 AM MDT	Flash Flood Warning	GLD	5 hr
May 29, 2:27 AM MDT	Severe Thunderstorm Warning	GLD	33 min
May 30, 4:23 PM MDT	Mesoscale Discussion	SPC	3 hr
May 30, 5:23 PM MDT	Severe Thunderstorm Warning	GLD	52 min
May 30, 5:48 PM MDT	Special Weather Statement	GLD	27 min
May 30, 6:19 PM MDT	Special Weather Statement	GLD	26 min
Jun 6, 12:18 AM MDT	Special Weather Statement	GLD	27 min
Jun 6, 12:40 AM MDT	Special Weather Statement	GLD	20 min
Jun 6, 2:01 AM MDT	Special Weather Statement	GLD	29 min
Jun 6, 2:10 AM MDT	Severe Thunderstorm Warning	GLD	26 min
Jun 6, 2:49 PM MDT	Mesoscale Discussion	SPC	86 min
Jun 6, 4:46 PM MDT	Severe Thunderstorm Watch	SPC	8 hr
Jun 6, 10:58 PM MDT	Mesoscale Discussion	SPC	2 hr
Jun 8, 7:08 PM MDT	Special Weather Statement	GLD	52 min
Jun 8, 7:29 PM MDT	Severe Thunderstorm Warning	GLD	46 min
Jun 8, 8:08 PM MDT	Severe Thunderstorm Warning	GLD	52 min
Jun 8, 8:53 PM MDT	Special Weather Statement	GLD	67 min
Jun 13, 1:25 AM MDT	Mesoscale Discussion	SPC	3 hr
Jun 13, 6:03 AM MDT	Special Weather Statement	GLD	42 min
Jun 13, 6:38 AM MDT	Special Weather Statement	GLD	52 min
Jun 13, 7:34 AM MDT	Special Weather Statement	GLD	26 min
Jun 13, 5:31 PM MDT	Mesoscale Discussion	SPC	89 min
Jun 14, 6:33 PM MDT	Special Weather Statement	GLD	42 min
Jun 14, 7:16 PM MDT	Special Weather Statement	GLD	44 min
Jun 15, 6:25 PM MDT	Severe Thunderstorm Warning	GLD	33 min
Jun 16, 6:36 PM MDT	Special Weather Statement	GLD	24 min
Jun 16, 6:59 PM MDT	Special Weather Statement	GLD	31 min
Jun 17, 2:02 PM MDT	Flash Flood Watch	GLD	60 hr
Jun 19, 2:09 PM MDT	Mesoscale Discussion	SPC	2 hr
Jun 19, 2:38 PM MDT	Severe Thunderstorm Watch	SPC	7 hr
Jun 19, 5:11 PM MDT	Severe Thunderstorm Warning	GLD	49 min
Jun 19, 5:16 PM MDT	Severe Thunderstorm Warning	GLD	29 min
Jun 19, 5:35 PM MDT	Severe Thunderstorm Warning	GLD	40 min
Jun 19, 5:38 PM MDT	Severe Thunderstorm Warning	GLD	52 min
Jun 19, 6:20 PM MDT	Severe Thunderstorm Warning	GLD	40 min
Jun 19, 6:44 PM MDT	Severe Thunderstorm Warning	GLD	46 min
Jun 22, 11:31 AM MDT	Mesoscale Discussion	SPC	89 min
Jun 22, 12:19 PM MDT	Severe Thunderstorm Watch	SPC	6 hr
Jun 22, 1:50 PM MDT	Severe Thunderstorm Warning	GLD	40 min
Jun 22, 2:23 PM MDT	Severe Thunderstorm Warning	GLD	52 min
Jun 22, 2:46 PM MDT	Mesoscale Discussion	SPC	89 min
Jun 23, 1:36 PM MDT	Mesoscale Discussion	SPC	114 min
Jun 23, 2:16 PM MDT	Special Weather Statement	GLD	44 min
Jun 23, 2:20 PM MDT	Severe Thunderstorm Watch	SPC	7 hr
Jun 23, 3:25 PM MDT	Severe Thunderstorm Warning	GLD	50 min
Jun 23, 4:12 PM MDT	Severe Thunderstorm Warning	GLD	48 min
Jun 23, 4:14 PM MDT	Severe Thunderstorm Warning	GLD	46 min
Jun 24, 12:17 AM MDT	Severe Thunderstorm Warning	GLD	58 min
Jun 24, 1:13 AM MDT	Severe Thunderstorm Warning	GLD	39 min
Jun 24, 1:16 AM MDT	Mesoscale Discussion	SPC	59 min
Jun 24, 1:19 AM MDT	Special Weather Statement	GLD	11 min
Jun 24, 1:50 AM MDT	Special Weather Statement	GLD	25 min
Jun 24, 3:59 PM MDT	Severe Thunderstorm Warning	GLD	46 min
Jun 24, 4:14 PM MDT	Severe Thunderstorm Warning	GLD	46 min
Jun 24, 4:31 PM MDT	Mesoscale Discussion	SPC	89 min
Jun 24, 4:53 PM MDT	Severe Thunderstorm Warning	GLD	52 min
Jun 27, 6:03 AM MDT	Dense Fog Advisory	GLD	92 min
Jun 29, 5:45 PM MDT	Severe Thunderstorm Warning	GLD	45 min
Jun 29, 6:28 PM MDT	Severe Thunderstorm Warning	GLD	62 min
Jun 29, 7:26 PM MDT	Severe Thunderstorm Warning	GLD	64 min
Jun 30, 4:40 PM MDT	Mesoscale Discussion	SPC	2 hr
Jun 30, 5:09 PM MDT	Severe Thunderstorm Watch	SPC	7 hr
Jun 30, 6:31 PM MDT	Severe Thunderstorm Warning	GLD	44 min
Jun 30, 7:03 PM MDT	Severe Thunderstorm Warning	GLD	42 min
Jun 30, 7:18 PM MDT	Mesoscale Discussion	SPC	117 min
Jun 30, 7:44 PM MDT	Severe Thunderstorm Warning	GLD	31 min
Jul 4, 5:50 PM MDT	Severe Thunderstorm Warning	GLD	40 min
Jul 4, 5:56 PM MDT	Severe Thunderstorm Warning	GLD	39 min
Jul 6, 5:32 AM MDT	Dense Fog Advisory	GLD	3 hr
Jul 15, 5:55 AM MDT	Special Weather Statement	GLD	65 min
Jul 17, 7:32 PM MDT	Mesoscale Discussion	SPC	118 min
Jul 21, 9:06 PM MDT	Special Weather Statement	GLD	39 min
Jul 21, 9:45 PM MDT	Special Weather Statement	GLD	45 min
Jul 22, 9:47 PM MDT	Special Weather Statement	GLD	13 min
Jul 22, 9:57 PM MDT	Severe Thunderstorm Warning	GLD	48 min
Jul 25, 11:46 AM MDT	Flash Flood Watch	GLD	11 hr
Jul 25, 12:56 PM MDT	Mesoscale Discussion	SPC	3 hr
Jul 25, 4:29 PM MDT	Severe Thunderstorm Watch	SPC	7 hr
Jul 25, 6:40 PM MDT	Mesoscale Discussion	SPC	2 hr
Jul 26, 1:34 PM MDT	Special Weather Statement	GLD	41 min
Jul 26, 2:42 PM MDT	Special Weather Statement	GLD	33 min
Jul 26, 4:19 PM MDT	Severe Thunderstorm Watch	SPC	7 hr
Jul 26, 5:02 PM MDT	Severe Thunderstorm Warning	GLD	43 min
Jul 26, 5:34 PM MDT	Severe Thunderstorm Warning	GLD	41 min
Jul 26, 5:48 PM MDT	Tornado Warning	GLD	13 min
Jul 26, 6:01 PM MDT	Flash Flood Warning	GLD	3 hr
Jul 26, 6:05 PM MDT	Severe Thunderstorm Warning	GLD	40 min
Jul 26, 6:07 PM MDT	Mesoscale Discussion	SPC	113 min
Jul 26, 6:14 PM MDT	Severe Thunderstorm Warning	GLD	30 min
Jul 27, 12:35 PM MDT	Mesoscale Discussion	SPC	85 min
Jul 27, 1:04 PM MDT	Tornado Watch	SPC	8 hr
Jul 27, 2:52 PM MDT	Mesoscale Discussion	SPC	83 min
Jul 27, 4:25 PM MDT	Severe Thunderstorm Warning	GLD	65 min
Jul 27, 5:16 PM MDT	Severe Thunderstorm Warning	GLD	44 min
Jul 27, 5:31 PM MDT	Severe Thunderstorm Warning	GLD	29 min
Jul 27, 5:58 PM MDT	Severe Thunderstorm Warning	GLD	47 min
Jul 27, 6:03 PM MDT	Severe Thunderstorm Warning	GLD	57 min
Jul 28, 5:01 PM MDT	Mesoscale Discussion	SPC	119 min
Jul 28, 5:40 PM MDT	Severe Thunderstorm Watch	SPC	7 hr
Jul 28, 6:27 PM MDT	Severe Thunderstorm Warning	GLD	39 min
Jul 28, 7:05 PM MDT	Special Weather Statement	GLD	10 min
Jul 28, 7:21 PM MDT	Severe Thunderstorm Warning	GLD	54 min
Jul 28, 8:14 PM MDT	Severe Thunderstorm Warning	GLD	46 min
Jul 29, 12:46 PM MDT	Mesoscale Discussion	SPC	59 min
Jul 29, 1:07 PM MDT	Tornado Watch	SPC	8 hr
Jul 29, 4:07 PM MDT	Mesoscale Discussion	SPC	53 min
Jul 29, 5:23 PM MDT	Mesoscale Discussion	SPC	67 min
Aug 3, 4:08 PM MDT	Special Weather Statement	GLD	37 min
Aug 3, 4:45 PM MDT	Special Weather Statement	GLD	45 min
Aug 3, 4:49 PM MDT	Severe Thunderstorm Warning	GLD	56 min
Aug 3, 5:14 PM MDT	Severe Thunderstorm Warning	GLD	61 min
Aug 3, 5:30 PM MDT	Mesoscale Discussion	SPC	3 hr
Aug 3, 5:55 PM MDT	Special Weather Statement	GLD	20 min
Aug 5, 6:35 PM MDT	Special Weather Statement	GLD	25 min
Aug 5, 6:42 PM MDT	Severe Thunderstorm Warning	GLD	48 min
Aug 5, 7:16 PM MDT	Mesoscale Discussion	SPC	119 min
Aug 10, 4:58 AM MDT	Special Weather Statement	GLD	32 min
Aug 18, 2:50 PM MDT	Mesoscale Discussion	SPC	55 min
Aug 18, 6:46 PM MDT	Special Weather Statement	GLD	14 min
Aug 18, 7:32 PM MDT	Special Weather Statement	GLD	13 min
Aug 25, 7:45 PM MDT	Severe Thunderstorm Warning	GLD	45 min
Aug 25, 7:50 PM MDT	Mesoscale Discussion	SPC	55 min
Aug 25, 8:46 PM MDT	Special Weather Statement	GLD	14 min
Aug 26, 7:09 PM MDT	Special Weather Statement	GLD	36 min
Aug 26, 7:41 PM MDT	Special Weather Statement	GLD	34 min
Aug 31, 7:47 PM MDT	Severe Thunderstorm Warning	GLD	28 min
Aug 31, 8:11 PM MDT	Severe Thunderstorm Warning	GLD	34 min
Aug 31, 8:50 PM MDT	Dust Storm Warning	GLD	62 min
Sep 3, 2:19 PM MDT	Special Weather Statement	GLD	41 min
Sep 3, 2:53 PM MDT	Special Weather Statement	GLD	52 min
Sep 3, 3:48 PM MDT	Special Weather Statement	GLD	42 min
Sep 4, 6:25 PM MDT	Severe Thunderstorm Warning	GLD	24 min
Sep 7, 6:11 AM MDT	Dense Fog Advisory	GLD	4 hr
Sep 8, 7:21 AM MDT	Dense Fog Advisory	GLD	2 hr
Sep 19, 6:02 PM MDT	Severe Thunderstorm Warning	GLD	43 min
Sep 29, 9:12 PM MDT	Dense Fog Advisory	GLD	12 hr
Sep 30, 6:12 PM MDT	Dense Fog Advisory	GLD	13 hr
Oct 2, 3:05 AM MDT	Dense Fog Advisory	GLD	8 hr
Oct 9, 4:01 AM MDT	Freeze Watch	GLD	8 hr
Oct 9, 12:05 PM MDT	Freeze Warning	GLD	22 hr
Oct 10, 4:11 AM MDT	Hard Freeze Warning	GLD	30 hr
Oct 12, 5:44 AM MDT	Dense Fog Advisory	GLD	3 hr
Oct 13, 2:36 AM MDT	Winter Weather Advisory	GLD	43 hr
Nov 6, 2:48 PM MST	Winter Weather Advisory	GLD	49 hr
Nov 23, 3:09 AM MST	Winter Storm Watch	GLD	9 hr
Nov 23, 12:35 PM MST	Winter Weather Advisory	GLD	23 hr
Nov 24, 6:04 AM MST	High Wind Warning	GLD	22 hr
Nov 24, 12:04 PM MST	Blizzard Warning	GLD	23 hr
Nov 30, 3:58 AM MST	Dense Fog Advisory	GLD	15 hr
Nov 30, 4:17 AM MST	Winter Weather Advisory	GLD	48 hr
Dec 1, 8:20 AM MST	High Wind Warning	GLD	7 hr
Dec 11, 7:37 PM MST	High Wind Watch	GLD	16 hr
Dec 24, 1:08 PM MST	Winter Storm Watch	GLD	15 hr
Dec 25, 3:55 AM MST	Winter Storm Warning	GLD	55 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	56
Tornado Warning	1
Severe Thunderstorm Watch	11
Tornado Watch	3
Mesoscale Discussion	40
Special Weather Statement	48
Flooding
Flash Flood Warning	3
Flash Flood Watch	3
Winter
Blizzard Warning	3
Winter Storm Warning	2
Winter Storm Watch	4
Winter Weather Advisory	12
Cold
Freeze Warning	1
Hard Freeze Warning	1
Freeze Watch	1
Wind Chill Advisory	3
Wind and dust
Dust Storm Warning	3
High Wind Warning	10
High Wind Watch	6
Blowing Dust Advisory	1
Fire
Red Flag Warning	15
Fire Weather Watch	9
Fog and smoke
Dense Fog Advisory	13

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record Forecast The radar archive 2017 2019

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.