Weather alerts in Bannock County, Idaho, 2020

150 weather alerts in 2020, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Bannock County and its neighbors

Each county as a circle sized by its count in 2020. Tap one for its archive.

Alerts: 150
Warnings: 28
Watches: 11
Advisories: 77
Busiest month: September24 alerts
Busiest day: August 25, 20206 alerts

Over time

By month

Warning verification

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

Bannock County, 2020

	Warnings	With a report	False alarm ratio	Reports	Inside a warning
Tornado warnings	0			0
Severe thunderstorm warnings	10	4	60%	9	0%
Flash flood warnings	0			0

Each office's whole area, 2020

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Pocatello, ID: tornado warnings	5	0	100%	0
NWS Pocatello, ID: severe thunderstorm warnings	52	19	63%	158	41%	21 min
NWS Pocatello, ID: flash flood warnings	1	0	100%	0

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 1, 1:57 AM MST	Special Weather Statement	PIH	48 min
Jan 3, 1:52 PM MST	Wind Advisory	PIH	28 hr
Jan 9, 2:57 AM MST	Winter Storm Watch	PIH	31 hr
Jan 10, 9:45 AM MST	Winter Weather Advisory	PIH	34 hr
Jan 12, 11:05 AM MST	Winter Weather Advisory	PIH	30 hr
Jan 13, 1:07 PM MST	Winter Weather Advisory	PIH	33 hr
Jan 13, 11:30 PM MST	Special Weather Statement	PIH	3 hr
Jan 14, 6:14 AM MST	Special Weather Statement	PIH	106 min
Jan 14, 7:54 AM MST	Special Weather Statement	PIH	96 min
Jan 15, 2:00 PM MST	Winter Weather Advisory	PIH	52 hr
Jan 17, 1:25 AM MST	Special Weather Statement	PIH	4 hr
Jan 17, 4:51 AM MST	Special Weather Statement	PIH	3 hr
Feb 1, 3:46 AM MST	Winter Storm Watch	PIH	11 hr
Feb 1, 2:45 PM MST	Winter Weather Advisory	PIH	51 hr
Feb 1, 8:27 PM MST	Winter Storm Warning	PIH	45 hr
Feb 4, 2:35 PM MST	Winter Weather Advisory	PIH	72 hr
Feb 6, 2:32 AM MST	Wind Advisory	PIH	40 hr
Feb 6, 5:18 AM MST	Special Weather Statement	PIH	3 hr
Feb 8, 10:04 AM MST	Wind Advisory	PIH	8 hr
Feb 16, 1:50 AM MST	Wind Advisory	PIH	18 hr
Feb 23, 4:10 AM MST	Wind Advisory	PIH	22 hr
Feb 24, 6:04 PM MST	Special Weather Statement	PIH	3 hr
Mar 30, 2:15 PM MDT	Wind Advisory	PIH	28 hr
Apr 10, 4:13 AM MDT	Wind Advisory	PIH	42 hr
Apr 12, 3:28 AM MDT	Lake Wind Advisory	PIH	11 hr
Apr 13, 3:25 AM MDT	Lake Wind Advisory	PIH	9 hr
Apr 15, 1:55 PM MDT	Lake Wind Advisory	PIH	28 hr
Apr 15, 3:15 PM MDT	Special Weather Statement	PIH	60 min
Apr 15, 4:51 PM MDT	Special Weather Statement	PIH	3 hr
Apr 22, 2:31 AM MDT	Lake Wind Advisory	PIH	17 hr
Apr 22, 1:20 PM MDT	Wind Advisory	PIH	33 hr
Apr 23, 12:25 PM MDT	Blowing Dust Warning	PIH	7 hr
Apr 26, 1:53 PM MDT	Wind Advisory	PIH	31 hr
Apr 30, 11:58 AM MDT	Special Weather Statement	PIH	92 min
Apr 30, 11:59 AM MDT	Special Weather Statement	PIH	91 min
Apr 30, 2:58 PM MDT	Mesoscale Discussion	SPC	92 min
Apr 30, 5:17 PM MDT	Severe Thunderstorm Warning	PIH	43 min
Apr 30, 5:59 PM MDT	Severe Thunderstorm Warning	PIH	46 min
Apr 30, 6:44 PM MDT	Special Weather Statement	PIH	91 min
May 3, 10:14 AM MDT	Lake Wind Advisory	PIH	9 hr
May 4, 3:11 AM MDT	Frost Advisory	PIH	30 hr
May 4, 2:34 PM MDT	High Wind Watch	PIH	23 hr
May 5, 2:03 PM MDT	Blowing Dust Advisory	PIH	31 hr
May 5, 2:03 PM MDT	High Wind Warning	PIH	31 hr
May 5, 2:03 PM MDT	Wind Advisory	PIH	31 hr
May 6, 1:35 PM MDT	Freeze Warning	PIH	19 hr
May 7, 1:44 PM MDT	Frost Advisory	PIH	18 hr
May 8, 2:06 PM MDT	Frost Advisory	PIH	18 hr
May 9, 2:08 AM MDT	Lake Wind Advisory	PIH	11 hr
May 11, 1:44 PM MDT	Special Weather Statement	PIH	31 min
May 12, 11:33 AM MDT	Lake Wind Advisory	PIH	10 hr
May 18, 3:22 PM MDT	Lake Wind Advisory	PIH	6 hr
May 18, 6:04 PM MDT	Blowing Dust Advisory	PIH	116 min
May 21, 3:52 AM MDT	Lake Wind Advisory	PIH	14 hr
May 29, 2:12 PM MDT	Mesoscale Discussion	SPC	2 hr
May 30, 7:38 PM MDT	Severe Thunderstorm Warning	PIH	28 min
Jun 1, 3:38 AM MDT	Lake Wind Advisory	PIH	13 hr
Jun 2, 8:56 PM MDT	Special Weather Statement	PIH	49 min
Jun 4, 3:18 AM MDT	Lake Wind Advisory	PIH	17 hr
Jun 6, 2:29 AM MDT	Lake Wind Advisory	PIH	18 hr
Jun 6, 4:03 PM MDT	Severe Thunderstorm Warning	PIH	42 min
Jun 7, 1:57 AM MDT	Wind Advisory	PIH	19 hr
Jun 8, 2:21 AM MDT	Frost Advisory	PIH	30 hr
Jun 11, 1:34 PM MDT	Wind Advisory	PIH	52 hr
Jun 14, 3:25 AM MDT	Lake Wind Advisory	PIH	17 hr
Jun 16, 1:03 PM MDT	Lake Wind Advisory	PIH	29 hr
Jun 20, 1:54 PM MDT	Lake Wind Advisory	PIH	30 hr
Jun 28, 5:34 AM MDT	Special Weather Statement	PIH	41 min
Jul 6, 2:08 PM MDT	Lake Wind Advisory	PIH	31 hr
Jul 11, 1:37 PM MDT	Lake Wind Advisory	PIH	30 hr
Jul 13, 8:58 AM MDT	Lake Wind Advisory	PIH	11 hr
Jul 20, 2:10 PM MDT	Fire Weather Watch	PIH	23 hr
Jul 21, 12:48 PM MDT	Red Flag Warning	PIH	32 hr
Jul 25, 3:34 PM MDT	Special Weather Statement	PIH	41 min
Jul 26, 1:07 PM MDT	Fire Weather Watch	PIH	25 hr
Jul 26, 1:07 PM MDT	Fire Weather Watch	PIH	25 hr
Jul 27, 1:52 PM MDT	Red Flag Warning	PIH	7 hr
Jul 27, 1:52 PM MDT	Red Flag Warning	PIH	28 hr
Jul 28, 2:28 PM MDT	Special Weather Statement	PIH	62 min
Jul 28, 2:32 PM MDT	Special Weather Statement	PIH	58 min
Jul 28, 3:31 PM MDT	Special Weather Statement	PIH	59 min
Jul 28, 4:32 PM MDT	Special Weather Statement	PIH	43 min
Jul 29, 2:30 AM MDT	Heat Advisory	PIH	5 days
Jul 31, 6:29 PM MDT	Special Weather Statement	PIH	31 min
Aug 2, 12:54 PM MDT	Red Flag Warning	PIH	32 hr
Aug 5, 1:14 PM MDT	Red Flag Warning	PIH	32 hr
Aug 5, 8:46 PM MDT	Special Weather Statement	PIH	59 min
Aug 5, 9:15 PM MDT	Special Weather Statement	PIH	60 min
Aug 11, 12:35 PM MDT	Red Flag Warning	PIH	32 hr
Aug 13, 4:03 AM MDT	Lake Wind Advisory	PIH	15 hr
Aug 14, 1:33 PM MDT	Heat Advisory	PIH	5 days
Aug 18, 10:46 PM MDT	Special Weather Statement	PIH	29 min
Aug 25, 3:28 AM MDT	Red Flag Warning	PIH	18 hr
Aug 25, 3:55 PM MDT	Severe Thunderstorm Warning	PIH	50 min
Aug 25, 4:37 PM MDT	Severe Thunderstorm Warning	PIH	38 min
Aug 25, 4:37 PM MDT	Severe Thunderstorm Warning	PIH	23 min
Aug 25, 4:41 PM MDT	Special Weather Statement	PIH	49 min
Aug 25, 5:09 PM MDT	Severe Thunderstorm Warning	PIH	51 min
Aug 25, 8:40 PM MDT	Special Weather Statement	PIH	50 min
Aug 25, 8:50 PM MDT	Severe Thunderstorm Warning	PIH	25 min
Aug 25, 9:20 PM MDT	Special Weather Statement	PIH	40 min
Aug 28, 2:22 AM MDT	Fire Weather Watch	PIH	10 hr
Aug 28, 12:34 PM MDT	Red Flag Warning	PIH	56 hr
Aug 29, 12:16 PM MDT	Lake Wind Advisory	PIH	32 hr
Aug 30, 7:50 PM MDT	Frost Advisory	PIH	37 hr
Sep 3, 3:19 PM MDT	Heat Advisory	PIH	54 hr
Sep 4, 1:11 AM MDT	Fire Weather Watch	PIH	14 hr
Sep 4, 3:03 PM MDT	Red Flag Warning	PIH	54 hr
Sep 5, 2:11 AM MDT	Lake Wind Advisory	PIH	41 hr
Sep 5, 1:45 PM MDT	High Wind Watch	PIH	24 hr
Sep 6, 2:23 AM MDT	Red Flag Warning	PIH	43 hr
Sep 6, 1:42 PM MDT	High Wind Warning	PIH	40 hr
Sep 6, 1:42 PM MDT	Wind Advisory	PIH	40 hr
Sep 7, 1:22 PM MDT	Freeze Warning	PIH	44 hr
Sep 8, 5:45 AM MDT	Wind Advisory	PIH	8 hr
Sep 8, 1:52 PM MDT	Lake Wind Advisory	PIH	6 hr
Sep 9, 12:32 PM MDT	Frost Advisory	PIH	20 hr
Sep 9, 12:32 PM MDT	Lake Wind Advisory	PIH	7 hr
Sep 15, 2:06 PM MDT	Fire Weather Watch	PIH	24 hr
Sep 16, 1:50 PM MDT	Red Flag Warning	PIH	55 hr
Sep 19, 4:02 PM MDT	Special Weather Statement	PIH	58 min
Sep 19, 4:12 PM MDT	Special Weather Statement	PIH	33 min
Sep 19, 4:49 PM MDT	Special Weather Statement	PIH	56 min
Sep 19, 5:43 PM MDT	Severe Thunderstorm Warning	PIH	32 min
Sep 23, 12:59 PM MDT	Lake Wind Advisory	PIH	31 hr
Sep 24, 1:49 PM MDT	Lake Wind Advisory	PIH	30 hr
Sep 25, 2:22 AM MDT	Wind Advisory	PIH	40 hr
Sep 27, 2:21 AM MDT	Frost Advisory	PIH	31 hr
Sep 28, 12:57 PM MDT	Frost Advisory	PIH	19 hr
Oct 9, 1:58 PM MDT	Wind Advisory	PIH	52 hr
Oct 10, 1:02 PM MDT	Wind Advisory	PIH	55 hr
Oct 12, 2:12 AM MDT	Wind Advisory	PIH	29 hr
Oct 12, 7:49 PM MDT	Wind Advisory	PIH	39 hr
Oct 13, 2:11 PM MDT	Hard Freeze Watch	PIH	12 hr
Oct 14, 2:05 AM MDT	Hard Freeze Warning	PIH	31 hr
Oct 14, 11:06 AM MDT	Wind Advisory	PIH	8 hr
Oct 15, 1:46 PM MDT	Lake Wind Advisory	PIH	29 hr
Oct 16, 1:41 PM MDT	Wind Advisory	PIH	30 hr
Oct 17, 2:02 AM MDT	Wind Advisory	PIH	42 hr
Oct 18, 12:57 PM MDT	Lake Wind Advisory	PIH	30 hr
Oct 20, 1:44 AM MDT	Wind Advisory	PIH	42 hr
Oct 22, 2:11 AM MDT	Lake Wind Advisory	PIH	12 hr
Oct 23, 2:29 AM MDT	Lake Wind Advisory	PIH	11 hr
Oct 23, 2:29 AM MDT	Wind Advisory	PIH	43 hr
Oct 25, 3:01 AM MDT	Lake Wind Advisory	PIH	16 hr
Nov 12, 3:26 PM MST	Winter Weather Advisory	PIH	46 hr
Nov 14, 2:20 AM MST	Wind Advisory	PIH	15 hr
Dec 1, 1:34 PM MST	Air Stagnation Advisory	PIH	8 days
Dec 21, 1:40 PM MST	Wind Advisory	PIH	27 hr
Dec 22, 4:23 PM MST	Special Weather Statement	PIH	112 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	10
Mesoscale Discussion	2
Special Weather Statement	32
Winter
Winter Storm Warning	1
Winter Storm Watch	2
Winter Weather Advisory	7
Heat
Heat Advisory	3
Cold
Freeze Warning	2
Hard Freeze Warning	1
Hard Freeze Watch	1
Frost Advisory	8
Wind and dust
Blowing Dust Warning	1
High Wind Warning	2
High Wind Watch	2
Blowing Dust Advisory	2
Lake Wind Advisory	30
Wind Advisory	26
Fire
Red Flag Warning	11
Fire Weather Watch	6
Fog and smoke
Air Stagnation Advisory	1

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record Forecast The radar archive 2019 2021

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.