Alert archive / Nebraska / Colfax County

Weather alerts in Colfax County, Nebraska, 2010

170 weather alerts in 2010, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Colfax County and its neighbors

Each county as a circle sized by its count in 2010. Tap one for its archive.

Alerts: 170
Warnings: 26
Watches: 36
Advisories: 52
Busiest month: June66 alerts
Busiest day: June 10, 201011 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 1 tornado warnings covering Colfax County in 2010 had a tornado report inside them.

Colfax County, 2010

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	1	1	0%	0
Severe thunderstorm warnings	14	8	43%	3	67%	12 min
Flash flood warnings	3	1	67%	1	100%	53 min

Each office's whole area, 2010

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Omaha, NE: tornado warnings	26	6	77%	10	80%	10 min
NWS Omaha, NE: severe thunderstorm warnings	294	173	41%	376	87%	19 min
NWS Omaha, NE: flash flood warnings	29	13	55%	31	74%	106 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 1, 3:57 PM CST	Wind Chill Advisory	OAX	18 hr
Jan 5, 3:40 AM CST	Winter Storm Watch	OAX	12 hr
Jan 5, 3:42 PM CST	Winter Storm Warning	OAX	44 hr
Jan 7, 3:53 AM CST	Wind Chill Warning	OAX	32 hr
Jan 7, 3:53 AM CST	Winter Weather Advisory	OAX	17 hr
Jan 8, 11:59 AM CST	Wind Chill Advisory	OAX	16 hr
Jan 8, 4:20 PM CST	Wind Chill Warning	OAX	11 hr
Jan 15, 4:00 AM CST	Freezing Fog Advisory	OAX	6 hr
Jan 16, 5:58 PM CST	Dense Fog Advisory	OAX	18 hr
Jan 17, 11:53 AM CST	Dense Fog Advisory	OAX	40 hr
Jan 19, 3:58 AM CST	Freezing Fog Advisory	OAX	8 hr
Jan 19, 3:20 PM CST	Freezing Rain Advisory	OAX	21 hr
Jan 19, 7:28 PM CST	Mesoscale Discussion	SPC	5 hr
Jan 20, 8:27 PM CST	Dense Fog Advisory	OAX	7 hr
Jan 24, 3:11 PM CST	Wind Advisory	OAX	27 hr
Jan 24, 7:01 PM CST	Winter Weather Advisory	OAX	23 hr
Feb 3, 3:33 PM CST	Winter Weather Advisory	OAX	44 hr
Feb 8, 9:30 AM CST	Wind Chill Advisory	OAX	7 hr
Feb 14, 3:56 AM CST	Wind Advisory	OAX	14 hr
Feb 14, 7:58 AM CST	Winter Weather Advisory	OAX	7 hr
Feb 14, 8:25 PM CST	Winter Weather Advisory	OAX	12 hr
Feb 14, 9:43 PM CST	Wind Advisory	OAX	6 hr
Feb 20, 3:00 PM CST	Winter Weather Advisory	OAX	27 hr
Mar 8, 4:00 PM CST	Areal Flood Advisory	OAX	24 hr
Mar 9, 1:39 PM CST	Dense Fog Advisory	OAX	14 hr
Mar 9, 3:17 PM CST	Areal Flood Advisory	OAX	24 hr
Mar 10, 3:08 PM CST	Areal Flood Advisory	OAX	54 hr
Mar 11, 8:54 AM CST	Winter Weather Advisory	OAX	8 min
Mar 11, 9:02 AM CST	Winter Weather Advisory	OAX	22 hr
Apr 1, 11:31 PM CDT	Mesoscale Discussion	SPC	89 min
Apr 13, 3:35 AM CDT	Wind Advisory	OAX	15 hr
Apr 23, 4:10 PM CDT	Mesoscale Discussion	SPC	95 min
Apr 23, 7:02 PM CDT	Mesoscale Discussion	SPC	88 min
Apr 23, 7:28 PM CDT	Tornado Watch	SPC	5 hr
Apr 23, 9:22 PM CDT	Mesoscale Discussion	SPC	53 min
Apr 23, 10:58 PM CDT	Tornado Watch	SPC	5 hr
Apr 24, 1:29 PM CDT	Mesoscale Discussion	SPC	91 min
Apr 28, 10:35 AM CDT	Wind Advisory	OAX	8 hr
Apr 29, 4:00 AM CDT	Wind Advisory	OAX	15 hr
May 7, 4:21 AM CDT	Wind Advisory	OAX	15 hr
May 22, 3:58 AM CDT	Wind Advisory	OAX	16 hr
May 23, 3:36 PM CDT	Wind Advisory	OAX	29 hr
May 24, 11:53 PM CDT	Severe Thunderstorm Warning	OAX	30 min
Jun 1, 5:53 AM CDT	Mesoscale Discussion	SPC	97 min
Jun 1, 8:46 AM CDT	Severe Thunderstorm Watch	SPC	7 hr
Jun 1, 10:21 AM CDT	Mesoscale Discussion	SPC	54 min
Jun 1, 12:37 PM CDT	Mesoscale Discussion	SPC	53 min
Jun 1, 1:36 PM CDT	Mesoscale Discussion	SPC	54 min
Jun 1, 1:53 PM CDT	Tornado Watch	SPC	9 hr
Jun 1, 3:24 PM CDT	Tornado Warning	OAX	51 min
Jun 1, 4:25 PM CDT	Severe Thunderstorm Warning	OAX	35 min
Jun 1, 4:39 PM CDT	Severe Thunderstorm Warning	OAX	40 min
Jun 1, 5:39 PM CDT	Mesoscale Discussion	SPC	96 min
Jun 3, 5:57 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
Jun 3, 9:15 PM CDT	Mesoscale Discussion	SPC	60 min
Jun 4, 11:10 PM CDT	Mesoscale Discussion	SPC	65 min
Jun 4, 11:32 PM CDT	Severe Thunderstorm Watch	SPC	8 hr
Jun 5, 1:06 AM CDT	Severe Thunderstorm Warning	OAX	39 min
Jun 5, 1:19 AM CDT	Mesoscale Discussion	SPC	3 hr
Jun 5, 2:29 AM CDT	Mesoscale Discussion	SPC	2 hr
Jun 5, 4:00 AM CDT	Severe Thunderstorm Watch	SPC	5 hr
Jun 7, 4:12 AM CDT	Flash Flood Watch	OAX	27 hr
Jun 7, 9:42 PM CDT	Mesoscale Discussion	SPC	2 hr
Jun 7, 10:31 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
Jun 7, 11:37 PM CDT	Mesoscale Discussion	SPC	113 min
Jun 8, 2:56 AM CDT	Mesoscale Discussion	SPC	2 hr
Jun 8, 9:08 AM CDT	Areal Flood Advisory	OAX	6 hr
Jun 10, 3:16 AM CDT	Severe Thunderstorm Watch	SPC	7 hr
Jun 10, 5:36 AM CDT	Mesoscale Discussion	SPC	114 min
Jun 10, 6:01 AM CDT	Severe Thunderstorm Warning	OAX	44 min
Jun 10, 6:46 AM CDT	Severe Thunderstorm Warning	OAX	44 min
Jun 10, 7:41 AM CDT	Areal Flood Advisory	OAX	3 hr
Jun 10, 10:02 AM CDT	Mesoscale Discussion	SPC	88 min
Jun 10, 10:07 AM CDT	Flash Flood Warning	OAX	6 hr
Jun 10, 11:18 AM CDT	Flash Flood Warning	OAX	6 hr
Jun 10, 4:04 PM CDT	Areal Flood Warning	OAX	6 hr
Jun 10, 4:16 PM CDT	Flash Flood Watch	OAX	15 hr
Jun 10, 5:31 PM CDT	Areal Flood Warning	OAX	8 hr
Jun 10, 9:30 PM CDT	Areal Flood Warning	OAX	9 hr
Jun 10, 11:47 PM CDT	Severe Thunderstorm Watch	SPC	4 hr
Jun 11, 1:45 AM CDT	Mesoscale Discussion	SPC	60 min
Jun 11, 4:11 AM CDT	Mesoscale Discussion	SPC	64 min
Jun 11, 6:34 AM CDT	Areal Flood Warning	OAX	4 days
Jun 11, 3:43 PM CDT	Flash Flood Watch	OAX	15 hr
Jun 12, 1:00 AM CDT	Severe Thunderstorm Watch	SPC	6 hr
Jun 12, 3:16 AM CDT	Mesoscale Discussion	SPC	59 min
Jun 13, 5:28 AM CDT	Flood Watch	OAX	25 hr
Jun 15, 9:05 AM CDT	Areal Flood Warning	OAX	24 hr
Jun 17, 1:54 PM CDT	Tornado Watch	SPC	8 hr
Jun 18, 3:19 AM CDT	Mesoscale Discussion	SPC	86 min
Jun 18, 4:54 AM CDT	Flood Watch	OAX	54 hr
Jun 18, 6:41 AM CDT	Severe Thunderstorm Warning	OAX	40 min
Jun 20, 4:26 AM CDT	Mesoscale Discussion	SPC	94 min
Jun 20, 4:46 AM CDT	Mesoscale Discussion	SPC	89 min
Jun 20, 5:04 AM CDT	Flash Flood Watch	OAX	26 hr
Jun 20, 8:07 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
Jun 22, 1:01 AM CDT	Severe Thunderstorm Watch	SPC	6 hr
Jun 22, 3:37 PM CDT	Mesoscale Discussion	SPC	23 min
Jun 22, 3:53 PM CDT	Flash Flood Watch	OAX	12 hr
Jun 22, 6:30 PM CDT	Tornado Watch	SPC	6 hr
Jun 22, 7:08 PM CDT	Mesoscale Discussion	SPC	2 hr
Jun 22, 9:40 PM CDT	Severe Thunderstorm Warning	OAX	50 min
Jun 25, 5:32 PM CDT	Mesoscale Discussion	SPC	118 min
Jun 26, 3:37 AM CDT	Heat Advisory	OAX	15 hr
Jun 26, 4:50 PM CDT	Tornado Watch	SPC	7 hr
Jun 26, 9:33 PM CDT	Mesoscale Discussion	SPC	87 min
Jun 27, 12:20 AM CDT	Severe Thunderstorm Warning	OAX	40 min
Jun 27, 12:37 AM CDT	Severe Thunderstorm Watch	SPC	3 hr
Jun 27, 12:52 AM CDT	Flash Flood Warning	OAX	3 hr
Jul 10, 8:01 PM CDT	Severe Thunderstorm Watch	SPC	5 hr
Jul 10, 11:00 PM CDT	Mesoscale Discussion	SPC	60 min
Jul 14, 2:30 PM CDT	Mesoscale Discussion	SPC	90 min
Jul 14, 4:52 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
Jul 14, 5:55 PM CDT	Severe Thunderstorm Warning	OAX	50 min
Jul 14, 6:10 PM CDT	Severe Thunderstorm Warning	OAX	50 min
Jul 16, 3:22 PM CDT	Heat Advisory	OAX	28 hr
Jul 16, 3:41 PM CDT	Mesoscale Discussion	SPC	2 hr
Jul 16, 4:41 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
Jul 16, 7:28 PM CDT	Mesoscale Discussion	SPC	92 min
Jul 17, 7:54 PM CDT	Mesoscale Discussion	SPC	96 min
Jul 18, 1:07 AM CDT	Severe Thunderstorm Watch	SPC	5 hr
Jul 19, 3:00 AM CDT	Mesoscale Discussion	SPC	60 min
Jul 19, 10:26 PM CDT	Mesoscale Discussion	SPC	2 hr
Jul 22, 2:06 PM CDT	Mesoscale Discussion	SPC	114 min
Jul 22, 10:19 PM CDT	Mesoscale Discussion	SPC	86 min
Aug 2, 4:14 AM CDT	Mesoscale Discussion	SPC	2 hr
Aug 2, 3:55 PM CDT	Mesoscale Discussion	SPC	65 min
Aug 6, 3:13 PM CDT	Excessive Heat Watch	OAX	24 hr
Aug 7, 3:30 PM CDT	Heat Advisory	OAX	70 hr
Aug 8, 2:19 PM CDT	Mesoscale Discussion	SPC	86 min
Aug 8, 5:47 PM CDT	Mesoscale Discussion	SPC	58 min
Aug 8, 7:05 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
Aug 8, 8:57 PM CDT	Mesoscale Discussion	SPC	63 min
Aug 8, 10:11 PM CDT	Severe Thunderstorm Warning	OAX	22 min
Aug 12, 3:21 AM CDT	Heat Advisory	OAX	17 hr
Aug 12, 2:05 PM CDT	Mesoscale Discussion	SPC	115 min
Aug 16, 2:50 PM CDT	Mesoscale Discussion	SPC	85 min
Aug 16, 3:08 PM CDT	Severe Thunderstorm Watch	SPC	4 hr
Aug 16, 5:32 PM CDT	Mesoscale Discussion	SPC	28 min
Aug 23, 3:48 PM CDT	Mesoscale Discussion	SPC	2 hr
Sep 1, 6:19 PM CDT	Mesoscale Discussion	SPC	116 min
Sep 2, 3:15 AM CDT	Mesoscale Discussion	SPC	90 min
Sep 6, 4:12 AM CDT	Wind Advisory	OAX	15 hr
Sep 13, 2:38 PM CDT	Tornado Watch	SPC	7 hr
Sep 13, 3:23 PM CDT	Severe Thunderstorm Warning	OAX	52 min
Sep 13, 4:00 PM CDT	Severe Thunderstorm Warning	OAX	60 min
Sep 13, 6:30 PM CDT	Mesoscale Discussion	SPC	60 min
Sep 13, 7:40 PM CDT	Mesoscale Discussion	SPC	65 min
Sep 15, 3:42 PM CDT	Mesoscale Discussion	SPC	93 min
Sep 17, 6:20 PM CDT	Mesoscale Discussion	SPC	85 min
Sep 17, 11:12 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
Sep 18, 1:00 AM CDT	Mesoscale Discussion	SPC	60 min
Sep 18, 4:42 AM CDT	Mesoscale Discussion	SPC	63 min
Sep 20, 2:07 AM CDT	Dense Fog Advisory	OAX	7 hr
Sep 20, 4:11 AM CDT	Wind Advisory	OAX	15 hr
Sep 23, 3:15 AM CDT	Flash Flood Watch	OAX	8 hr
Oct 2, 3:24 AM CDT	Frost Advisory	OAX	30 hr
Oct 25, 3:33 PM CDT	Wind Advisory	OAX	28 hr
Oct 26, 3:41 AM CDT	Wind Advisory	OAX	39 hr
Nov 20, 7:58 PM CST	Winter Weather Advisory	OAX	13 hr
Nov 22, 1:05 AM CST	Freezing Rain Advisory	OAX	11 hr
Nov 23, 3:41 PM CST	Freezing Rain Advisory	OAX	23 hr
Nov 24, 3:21 PM CST	Freezing Rain Advisory	OAX	3 hr
Nov 29, 3:33 PM CST	Wind Advisory	OAX	23 hr
Dec 10, 3:15 PM CST	Wind Advisory	OAX	33 hr
Dec 11, 3:42 PM CST	Wind Chill Advisory	OAX	20 hr
Dec 15, 3:06 PM CST	Winter Weather Advisory	OAX	7 hr
Dec 23, 4:10 AM CST	Winter Weather Advisory	OAX	36 hr
Dec 29, 3:52 PM CST	Winter Storm Watch	OAX	24 hr
Dec 30, 3:37 PM CST	Winter Weather Advisory	OAX	21 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	14
Tornado Warning	1
Severe Thunderstorm Watch	18
Tornado Watch	7
Mesoscale Discussion	56
Flooding
Areal Flood Warning	5
Flash Flood Warning	3
Flash Flood Watch	6
Flood Watch	2
Areal Flood Advisory	5
Winter
Winter Storm Warning	1
Winter Storm Watch	2
Freezing Rain Advisory	4
Winter Weather Advisory	12
Heat
Excessive Heat Watch	1
Heat Advisory	4
Cold
Wind Chill Warning	2
Frost Advisory	1
Wind Chill Advisory	4
Wind and dust
Wind Advisory	15
Fog and smoke
Dense Fog Advisory	5
Freezing Fog Advisory	2

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record Forecast The radar archive 2009 2011

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.