Weather alerts in Elmore County, Idaho, 2008

88 weather alerts in 2008, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Elmore County and its neighbors

Each county as a circle sized by its count in 2008. Tap one for its archive.

Alerts: 88
Warnings: 25
Watches: 18
Advisories: 41
Busiest month: January22 alerts
Busiest day: January 30, 20083 alerts

Over time

By month

Warning verification

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

Elmore County, 2008

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	0			0
Severe thunderstorm warnings	2	2	0%	7	43%	27 min
Flash flood warnings	0			0

Each office's whole area, 2008

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Boise, ID: tornado warnings	1	1	0%	1	100%	37 min
NWS Boise, ID: severe thunderstorm warnings	21	9	57%	29	62%	16 min
NWS Boise, ID: flash flood warnings	2	1	50%	2	100%	55 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, 12:08 PM MST	High Wind Watch	BOI	26 hr
Jan 2, 2:15 PM MST	Winter Storm Watch	BOI	24 hr
Jan 3, 2:21 PM MST	Wind Advisory	BOI	30 hr
Jan 3, 2:39 PM MST	Winter Storm Warning	BOI	44 hr
Jan 6, 12:04 PM MST	Winter Storm Watch	BOI	34 hr
Jan 7, 3:16 PM MST	Winter Storm Warning	BOI	36 hr
Jan 7, 9:50 PM MST	Snow Advisory	BOI	25 hr
Jan 9, 3:44 AM MST	Winter Storm Watch	BOI	10 hr
Jan 9, 1:46 PM MST	Snow Advisory	BOI	19 hr
Jan 12, 8:59 PM MST	Dense Fog Advisory	BOI	17 hr
Jan 13, 9:09 PM MST	Dense Fog Advisory	BOI	10 hr
Jan 14, 1:05 PM MST	Wind Advisory	BOI	28 hr
Jan 20, 7:10 PM MST	Dense Fog Advisory	BOI	11 hr
Jan 23, 2:30 AM MST	Wind Chill Warning	BOI	33 hr
Jan 25, 3:30 PM MST	Snow Advisory	BOI	68 hr
Jan 25, 3:30 PM MST	Winter Storm Warning	BOI	68 hr
Jan 26, 5:32 AM MST	Winter Storm Watch	BOI	10 hr
Jan 28, 2:36 PM MST	Heavy Snow Warning	BOI	32 hr
Jan 28, 2:36 PM MST	Snow Advisory	BOI	32 hr
Jan 30, 4:08 AM MST	Winter Storm Watch	BOI	7 hr
Jan 30, 11:27 AM MST	Snow and Blowing Snow Advisory	BOI	36 hr
Jan 30, 11:27 AM MST	Winter Storm Warning	BOI	36 hr
Feb 1, 3:34 PM MST	Winter Storm Watch	BOI	6 hr
Feb 1, 9:32 PM MST	Snow and Blowing Snow Advisory	BOI	40 hr
Feb 1, 9:32 PM MST	Winter Storm Warning	BOI	40 hr
Feb 4, 2:54 PM MST	Winter Storm Watch	BOI	12 hr
Feb 5, 3:23 AM MST	Snow and Blowing Snow Advisory	BOI	29 hr
Feb 5, 3:23 AM MST	Winter Storm Warning	BOI	25 hr
Feb 6, 10:13 AM MST	Snow and Blowing Snow Advisory	BOI	23 hr
Feb 6, 10:13 AM MST	Snow Advisory	BOI	23 hr
Feb 6, 10:13 AM MST	Winter Storm Warning	BOI	28 hr
Feb 7, 2:56 PM MST	Blowing Snow Advisory	BOI	6 hr
Feb 13, 10:39 AM MST	Wind Advisory	BOI	7 hr
Feb 22, 3:07 PM MST	Winter Storm Watch	BOI	23 hr
Feb 23, 2:34 PM MST	Heavy Snow Warning	BOI	20 hr
Feb 29, 2:25 PM MST	Snow Advisory	BOI	22 hr
Mar 1, 3:31 AM MST	Wind Advisory	BOI	16 hr
Mar 12, 2:42 AM MDT	Snow Advisory	BOI	42 hr
Mar 25, 4:14 AM MDT	Snow Advisory	BOI	38 hr
Mar 27, 3:35 PM MDT	Snow and Blowing Snow Advisory	BOI	32 hr
Apr 4, 1:26 PM MDT	Wind Advisory	BOI	9 hr
Apr 13, 3:12 PM MDT	Wind Advisory	BOI	31 hr
Apr 14, 8:35 PM MDT	Dust Storm Warning	BOI	101 min
Apr 14, 8:35 PM MDT	High Wind Warning	BOI	101 min
Apr 14, 10:16 PM MDT	Wind Advisory	BOI	2 hr
Apr 25, 2:43 PM MDT	Freeze Warning	BOI	18 hr
Apr 28, 1:05 PM MDT	Wind Advisory	BOI	32 hr
Apr 29, 3:12 PM MDT	Freeze Watch	BOI	11 hr
Apr 30, 2:22 AM MDT	Freeze Warning	BOI	31 hr
Apr 30, 9:28 AM MDT	Wind Advisory	BOI	11 hr
May 1, 3:37 PM MDT	Freeze Warning	BOI	17 hr
May 13, 1:56 PM MDT	Wind Advisory	BOI	30 hr
May 20, 2:46 AM MDT	Wind Advisory	BOI	41 hr
May 20, 5:56 PM MDT	High Wind Warning	BOI	4 hr
May 22, 10:39 AM MDT	Wind Advisory	BOI	9 hr
May 28, 10:06 AM MDT	Flash Flood Watch	BOI	19 hr
Jun 9, 1:47 PM MDT	Wind Advisory	BOI	26 hr
Jun 21, 7:01 PM MDT	Severe Thunderstorm Warning	BOI	44 min
Jun 30, 3:05 PM MDT	Mesoscale Discussion	SPC	85 min
Jun 30, 3:12 PM MDT	Severe Thunderstorm Warning	BOI	63 min
Jul 21, 3:31 PM MDT	Flash Flood Watch	BOI	26 hr
Jul 22, 12:16 PM MDT	Mesoscale Discussion	SPC	89 min
Aug 8, 3:06 AM MDT	Flash Flood Watch	BOI	18 hr
Aug 8, 1:55 PM MDT	Mesoscale Discussion	SPC	95 min
Aug 25, 11:07 AM MDT	Wind Advisory	BOI	13 hr
Aug 25, 6:04 PM MDT	High Wind Warning	BOI	3 hr
Oct 7, 3:05 PM MDT	Freeze Watch	BOI	19 hr
Oct 8, 10:09 AM MDT	Freeze Warning	BOI	23 hr
Nov 3, 9:13 PM MST	Winter Weather Advisory	BOI	17 hr
Nov 22, 10:00 PM MST	Dense Fog Advisory	BOI	15 hr
Nov 30, 8:33 AM MST	Dense Fog Advisory	BOI	2 hr
Nov 30, 9:01 PM MST	Dense Fog Advisory	BOI	16 hr
Dec 11, 3:50 AM MST	Winter Storm Watch	BOI	24 hr
Dec 12, 3:38 AM MST	Wind Advisory	BOI	25 hr
Dec 12, 4:12 AM MST	Winter Storm Warning	BOI	25 hr
Dec 12, 4:12 AM MST	Winter Weather Advisory	BOI	25 hr
Dec 13, 2:44 PM MST	Winter Weather Advisory	BOI	20 hr
Dec 16, 2:40 PM MST	Winter Storm Watch	BOI	25 hr
Dec 17, 3:45 PM MST	Winter Storm Warning	BOI	36 hr
Dec 17, 3:45 PM MST	Winter Weather Advisory	BOI	42 hr
Dec 19, 1:32 PM MST	Winter Storm Watch	BOI	24 hr
Dec 20, 1:09 PM MST	Winter Storm Warning	BOI	46 hr
Dec 21, 4:47 PM MST	Mesoscale Discussion	SPC	4 hr
Dec 23, 3:46 AM MST	Winter Storm Watch	BOI	12 hr
Dec 23, 3:43 PM MST	Winter Storm Warning	BOI	46 hr
Dec 23, 3:43 PM MST	Winter Weather Advisory	BOI	36 hr
Dec 26, 2:43 AM MST	Winter Weather Advisory	BOI	62 hr
Dec 27, 3:18 AM MST	Winter Storm Warning	BOI	56 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	2
Mesoscale Discussion	4
Flooding
Flash Flood Watch	3
Winter
Heavy Snow Warning	2
Winter Storm Warning	12
Winter Storm Watch	12
Blowing Snow Advisory	1
Snow Advisory	8
Snow and Blowing Snow Advisory	5
Winter Weather Advisory	6
Cold
Freeze Warning	4
Wind Chill Warning	1
Freeze Watch	2
Wind and dust
Dust Storm Warning	1
High Wind Warning	3
High Wind Watch	1
Wind Advisory	15
Fog and smoke
Dense Fog Advisory	6

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record Forecast The radar archive 2007 2009

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.