Weather alerts in Cassia County, Idaho, 2023

159 weather alerts in 2023, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Cassia County and its neighbors

Each county as a circle sized by its count in 2023. Tap one for its archive.

Alerts: 159
Warnings: 40
Watches: 7
Advisories: 56
Busiest month: May33 alerts
Busiest day: May 24, 20238 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 2 tornado warnings covering Cassia County in 2023 had a tornado report inside them; 0 of 1 tornado reports fell inside a warning.

Cassia County, 2023

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	2	0	100%	1	0%
Severe thunderstorm warnings	11	4	64%	10	50%	38 min
Flash flood warnings	13	3	77%	4	75%	70 min

Each office's whole area, 2023

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Pocatello, ID: tornado warnings	2	0	100%	2	0%
NWS Pocatello, ID: severe thunderstorm warnings	55	17	69%	155	27%	20 min
NWS Pocatello, ID: flash flood warnings	42	8	81%	30	77%	60 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 5, 9:04 AM MST	Winter Weather Advisory	PIH	29 hr
Jan 9, 2:05 AM MST	Winter Weather Advisory	PIH	59 hr
Jan 10, 5:26 PM MST	Special Weather Statement	PIH	109 min
Jan 14, 1:58 PM MST	Winter Weather Advisory	PIH	45 hr
Jan 19, 2:06 AM MST	Winter Weather Advisory	PIH	21 hr
Jan 20, 6:13 AM MST	Special Weather Statement	PIH	3 hr
Jan 21, 1:38 PM MST	Winter Weather Advisory	PIH	23 hr
Jan 26, 1:58 PM MST	Winter Weather Advisory	PIH	68 hr
Jan 28, 2:41 PM MST	Wind Chill Warning	PIH	67 hr
Feb 4, 2:06 PM MST	Winter Weather Advisory	PIH	46 hr
Feb 13, 2:53 AM MST	Wind Advisory	PIH	32 hr
Feb 13, 3:11 AM MST	Winter Weather Advisory	PIH	44 hr
Feb 19, 2:47 PM MST	Winter Storm Watch	PIH	13 hr
Feb 20, 3:54 AM MST	Winter Weather Advisory	PIH	40 hr
Feb 20, 3:58 AM MST	Wind Advisory	PIH	32 hr
Feb 22, 4:53 AM MST	Winter Weather Advisory	PIH	16 hr
Feb 26, 1:42 AM MST	Winter Weather Advisory	PIH	3 days
Feb 26, 7:53 PM MST	Special Weather Statement	PIH	3 hr
Mar 3, 3:44 PM MST	Winter Weather Advisory	PIH	45 hr
Mar 5, 6:04 PM MST	Special Weather Statement	PIH	56 min
Mar 8, 2:51 AM MST	Winter Weather Advisory	PIH	25 hr
Mar 9, 4:20 AM MST	High Wind Warning	PIH	38 hr
Mar 10, 12:10 PM MST	Snow Squall Warning	PIH	50 min
Mar 10, 12:34 PM MST	Mesoscale Discussion	SPC	116 min
Mar 10, 12:41 PM MST	Snow Squall Warning	PIH	49 min
Mar 14, 2:46 AM MDT	Wind Advisory	PIH	36 hr
Mar 14, 2:22 PM MDT	High Wind Warning	PIH	28 hr
Mar 14, 2:39 PM MDT	Areal Flood Advisory	PIH	21 hr
Mar 15, 8:49 AM MDT	River Flood Warning	PIH	47 hr
Mar 22, 2:58 AM MDT	Winter Weather Advisory	PIH	18 hr
Mar 23, 3:08 AM MDT	Wind Advisory	PIH	43 hr
Mar 27, 1:53 PM MDT	Winter Weather Advisory	PIH	4 days
Mar 30, 2:20 AM MDT	Wind Advisory	PIH	32 hr
Mar 30, 2:25 PM MDT	Wind Advisory	PIH	20 hr
Apr 2, 2:35 AM MDT	Winter Weather Advisory	PIH	57 hr
Apr 3, 2:45 AM MDT	Wind Advisory	PIH	21 hr
Apr 12, 4:10 PM MDT	Wind Advisory	PIH	22 hr
Apr 18, 2:52 AM MDT	Wind Advisory	PIH	23 hr
Apr 18, 11:45 AM MDT	Special Weather Statement	PIH	45 min
Apr 20, 3:28 AM MDT	Winter Weather Advisory	PIH	42 hr
Apr 21, 3:26 AM MDT	Wind Advisory	PIH	18 hr
Apr 23, 2:14 PM MDT	Wind Advisory	PIH	37 hr
Apr 26, 3:13 PM MDT	Flood Watch	PIH	14 days
Apr 26, 3:21 PM MDT	Wind Advisory	PIH	31 hr
May 4, 1:39 PM MDT	Special Weather Statement	SLC	36 min
May 4, 2:02 PM MDT	Special Weather Statement	PIH	43 min
May 7, 2:34 AM MDT	Frost Advisory	PIH	31 hr
May 15, 3:49 PM MDT	Special Weather Statement	PIH	41 min
May 15, 4:57 PM MDT	Severe Thunderstorm Warning	PIH	33 min
May 15, 8:00 PM MDT	Special Weather Statement	PIH	45 min
May 23, 12:50 PM MDT	Mesoscale Discussion	SPC	2 hr
May 23, 1:25 PM MDT	Special Weather Statement	PIH	65 min
May 23, 2:51 PM MDT	Special Weather Statement	PIH	24 min
May 24, 2:37 AM MDT	Flood Watch	PIH	18 hr
May 24, 1:03 PM MDT	Mesoscale Discussion	SPC	2 hr
May 24, 1:27 PM MDT	Special Weather Statement	PIH	48 min
May 24, 2:11 PM MDT	Flash Flood Warning	PIH	5 hr
May 24, 2:50 PM MDT	Severe Thunderstorm Warning	PIH	40 min
May 24, 2:57 PM MDT	Severe Thunderstorm Warning	PIH	63 min
May 24, 3:40 PM MDT	Flash Flood Warning	PIH	3 hr
May 24, 4:01 PM MDT	Severe Thunderstorm Warning Considerable damage threat	PIH	59 min
May 25, 4:50 PM MDT	Special Weather Statement	PIH	25 min
May 26, 1:35 PM MDT	Flash Flood Warning	PIH	5 hr
May 26, 2:34 PM MDT	Tornado Warning	PIH	26 min
May 26, 2:55 PM MDT	Severe Thunderstorm Warning	PIH	35 min
May 26, 3:04 PM MDT	Flash Flood Warning	PIH	3 hr
May 26, 3:14 PM MDT	Flash Flood Warning	PIH	3 hr
May 26, 3:31 PM MDT	Severe Thunderstorm Warning	PIH	29 min
May 29, 3:31 PM MDT	Special Weather Statement	PIH	89 min
May 29, 3:38 PM MDT	Flash Flood Warning	PIH	5 hr
May 29, 4:30 PM MDT	Flash Flood Warning	PIH	4 hr
May 29, 4:40 PM MDT	Flash Flood Warning	PIH	4 hr
May 31, 4:02 PM MDT	Special Weather Statement	PIH	43 min
May 31, 4:12 PM MDT	Severe Thunderstorm Warning	PIH	48 min
May 31, 4:20 PM MDT	Flash Flood Warning	PIH	4 hr
May 31, 4:57 PM MDT	Flash Flood Warning	PIH	3 hr
May 31, 5:08 PM MDT	Special Weather Statement	PIH	37 min
Jun 4, 1:35 PM MDT	Special Weather Statement	PIH	40 min
Jun 4, 2:24 PM MDT	Special Weather Statement	PIH	51 min
Jun 6, 1:45 PM MDT	Special Weather Statement	PIH	30 min
Jun 6, 5:48 PM MDT	Special Weather Statement	PIH	27 min
Jun 6, 5:57 PM MDT	Severe Thunderstorm Warning Considerable damage threat	PIH	48 min
Jun 7, 8:19 PM MDT	Flash Flood Warning	PIH	116 min
Jun 8, 1:52 PM MDT	Special Weather Statement	PIH	23 min
Jun 8, 2:03 PM MDT	Flash Flood Warning	PIH	3 hr
Jun 8, 3:44 PM MDT	Special Weather Statement	PIH	31 min
Jun 10, 2:29 PM MDT	Special Weather Statement	PIH	46 min
Jun 10, 2:48 PM MDT	Severe Thunderstorm Warning	PIH	27 min
Jun 11, 5:36 PM MDT	Special Weather Statement	PIH	24 min
Jun 11, 10:55 PM MDT	Areal Flood Advisory	PIH	3 hr
Jun 13, 12:46 PM MDT	Wind Advisory	PIH	33 hr
Jun 13, 7:10 PM MDT	Flash Flood Warning	PIH	2 hr
Jun 13, 7:31 PM MDT	Severe Thunderstorm Warning	PIH	29 min
Jun 19, 2:36 AM MDT	Wind Advisory	PIH	18 hr
Jun 20, 1:51 PM MDT	Frost Advisory	PIH	19 hr
Jun 27, 2:07 PM MDT	Special Weather Statement	PIH	38 min
Jun 27, 2:50 PM MDT	Special Weather Statement	PIH	25 min
Jun 27, 3:31 PM MDT	Special Weather Statement	PIH	44 min
Jun 28, 8:55 PM MDT	Special Weather Statement	PIH	35 min
Jul 3, 1:17 PM MDT	Mesoscale Discussion	SPC	118 min
Jul 7, 5:39 PM MDT	Special Weather Statement	PIH	36 min
Jul 7, 6:14 PM MDT	Special Weather Statement	PIH	31 min
Jul 13, 12:56 PM MDT	Heat Advisory	PIH	3 days
Jul 19, 4:34 PM MDT	Special Weather Statement	PIH	26 min
Jul 20, 2:23 PM MDT	Heat Advisory	PIH	3 days
Jul 23, 4:10 PM MDT	Special Weather Statement	PIH	50 min
Jul 24, 3:33 PM MDT	Mesoscale Discussion	SPC	87 min
Jul 24, 6:29 PM MDT	Special Weather Statement	PIH	46 min
Jul 24, 7:00 PM MDT	Severe Thunderstorm Warning	PIH	60 min
Jul 26, 1:42 PM MDT	Red Flag Warning	PIH	31 hr
Jul 27, 1:59 PM MDT	Red Flag Warning	PIH	31 hr
Aug 1, 3:34 PM MDT	Special Weather Statement	PIH	41 min
Aug 4, 7:01 PM MDT	Special Weather Statement	PIH	59 min
Aug 4, 8:02 PM MDT	Special Weather Statement	PIH	58 min
Aug 4, 8:56 PM MDT	Special Weather Statement	PIH	49 min
Aug 5, 4:01 PM MDT	Special Weather Statement	PIH	59 min
Aug 5, 4:41 PM MDT	Special Weather Statement	PIH	49 min
Aug 5, 5:06 PM MDT	Areal Flood Advisory	PIH	113 min
Aug 6, 4:38 PM MDT	Special Weather Statement	PIH	52 min
Aug 17, 9:12 AM MDT	Red Flag Warning	PIH	12 hr
Aug 19, 1:20 PM MDT	High Wind Warning	PIH	51 hr
Aug 19, 1:20 PM MDT	Wind Advisory	PIH	56 hr
Aug 22, 11:15 PM MDT	Special Weather Statement	PIH	45 min
Aug 24, 2:08 PM MDT	Fire Weather Watch	PIH	15 hr
Aug 26, 4:14 PM MDT	Special Weather Statement	PIH	46 min
Aug 27, 6:54 PM MDT	Tornado Warning	PIH	36 min
Aug 28, 1:07 PM MDT	Red Flag Warning	PIH	32 hr
Sep 1, 2:35 AM MDT	Wind Advisory	PIH	18 hr
Sep 1, 4:20 PM MDT	Special Weather Statement	PIH	85 min
Sep 1, 4:35 PM MDT	Special Weather Statement	SLC	55 min
Sep 1, 6:04 PM MDT	Special Weather Statement	PIH	41 min
Sep 2, 12:17 PM MDT	Flood Watch	PIH	37 hr
Sep 3, 12:32 PM MDT	Mesoscale Discussion	SPC	2 hr
Sep 3, 1:33 PM MDT	Areal Flood Advisory	PIH	3 hr
Sep 3, 1:54 PM MDT	Severe Thunderstorm Watch	SPC	7 hr
Sep 5, 3:58 PM MDT	Special Weather Statement	PIH	32 min
Sep 5, 4:55 PM MDT	Special Weather Statement	PIH	50 min
Sep 6, 4:26 PM MDT	Special Weather Statement	PIH	49 min
Sep 20, 4:39 PM MDT	Special Weather Statement	PIH	66 min
Sep 22, 2:40 AM MDT	Frost Advisory	PIH	30 hr
Oct 26, 1:59 AM MDT	Wind Advisory	PIH	16 hr
Nov 18, 1:34 AM MST	Wind Advisory	PIH	45 hr
Nov 18, 2:17 PM MST	Winter Weather Advisory	PIH	33 hr
Nov 21, 2:35 AM MST	Winter Weather Advisory	PIH	3 days
Nov 23, 2:44 AM MST	Winter Storm Warning	PIH	30 hr
Nov 27, 11:37 AM MST	Air Stagnation Advisory	PIH	3 days
Nov 30, 3:39 AM MST	Winter Storm Watch	PIH	34 hr
Nov 30, 1:45 PM MST	Winter Weather Advisory	PIH	55 hr
Dec 1, 2:04 PM MST	Winter Storm Warning	PIH	60 hr
Dec 2, 3:31 AM MST	Wind Advisory	PIH	13 hr
Dec 6, 1:49 AM MST	Winter Weather Advisory	PIH	63 hr
Dec 7, 1:39 AM MST	Wind Advisory	PIH	39 hr
Dec 12, 12:47 AM MST	Freezing Fog Advisory	PIH	9 hr
Dec 13, 1:22 AM MST	Freezing Fog Advisory	PIH	12 hr
Dec 13, 12:56 PM MST	Freezing Fog Advisory	PIH	23 hr
Dec 14, 1:33 PM MST	Freezing Fog Advisory	PIH	24 hr
Dec 15, 1:37 PM MST	Freezing Fog Advisory	PIH	20 hr
Dec 23, 2:33 AM MST	Snow Squall Warning	PIH	57 min
Dec 23, 6:05 AM MST	Special Weather Statement	PIH	85 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	11
Tornado Warning	2
Severe Thunderstorm Watch	1
Mesoscale Discussion	6
Special Weather Statement	50
Flooding
Flash Flood Warning	13
River Flood Warning	1
Flood Watch	3
Areal Flood Advisory	4
Winter
Snow Squall Warning	3
Winter Storm Warning	2
Winter Storm Watch	2
Winter Weather Advisory	21
Heat
Heat Advisory	2
Cold
Wind Chill Warning	1
Frost Advisory	3
Wind and dust
High Wind Warning	3
Wind Advisory	20
Fire
Red Flag Warning	4
Fire Weather Watch	1
Fog and smoke
Air Stagnation Advisory	1
Freezing Fog Advisory	5

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record Forecast The radar archive 2022 2024

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.