Weather alerts in Latah County, Idaho, 2008

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

Latah County and its neighbors

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

Alerts: 85
Warnings: 24
Watches: 16
Advisories: 40
Busiest month: December25 alerts
Busiest day: January 14, 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.

Latah County, 2008

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	0			0
Severe thunderstorm warnings	3	1	67%	1	100%	42 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 Spokane, WA: tornado warnings	0			1	0%
NWS Spokane, WA: severe thunderstorm warnings	31	15	52%	27	85%	22 min
NWS Spokane, WA: flash flood warnings	4	1	75%	6	17%	52 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, Pacific Time. Each opens its own page with the text, the map, the radar and the sounding.

Issued	Product	Office	Lasted
Jan 5, 3:08 PM PST	Snow Advisory	OTX	21 hr
Jan 6, 2:43 PM PST	Snow Advisory	OTX	24 hr
Jan 6, 2:43 PM PST	Winter Storm Watch	OTX	24 hr
Jan 7, 2:44 PM PST	Heavy Snow Warning	OTX	43 hr
Jan 9, 2:46 PM PST	Heavy Snow Warning	OTX	43 hr
Jan 9, 2:46 PM PST	Snow Advisory	OTX	30 hr
Jan 13, 9:24 PM PST	Dense Fog Advisory	OTX	15 hr
Jan 14, 3:53 AM PST	Wind Advisory	OTX	26 hr
Jan 14, 1:34 PM PST	Snow and Blowing Snow Advisory	OTX	19 hr
Jan 18, 2:35 PM PST	Snow and Blowing Snow Advisory	OTX	44 hr
Jan 20, 10:05 AM PST	Snow Advisory	OTX	8 hr
Jan 25, 3:32 AM PST	Winter Storm Watch	OTX	19 hr
Jan 25, 10:04 PM PST	Heavy Snow Warning	OTX	54 hr
Jan 27, 4:51 AM PST	Mesoscale Discussion	SPC	5 hr
Jan 27, 5:35 AM PST	Snow Advisory	OTX	16 hr
Jan 28, 3:30 PM PST	Heavy Snow Warning	OTX	37 hr
Jan 28, 3:30 PM PST	Snow Advisory	OTX	24 hr
Jan 29, 3:18 PM PST	Winter Storm Watch	OTX	13 hr
Jan 30, 4:06 AM PST	Winter Storm Warning	OTX	3 days
Feb 3, 2:24 PM PST	Winter Storm Watch	OTX	31 hr
Feb 4, 2:24 PM PST	Winter Storm Warning	OTX	31 hr
Feb 6, 4:36 AM PST	Winter Storm Warning	OTX	3 days
Feb 6, 9:35 PM PST	Wind Advisory	OTX	21 hr
Mar 1, 2:48 PM PST	Areal Flood Advisory	OTX	8 hr
Mar 3, 7:59 AM PST	Snow Advisory	OTX	31 hr
Mar 14, 2:25 PM PDT	Snow Advisory	OTX	19 hr
Mar 21, 7:33 AM PDT	Snow Advisory	OTX	7 hr
Mar 23, 10:40 AM PDT	Wind Advisory	OTX	10 hr
Mar 26, 2:15 PM PDT	Snow Advisory	OTX	19 hr
Mar 26, 9:45 PM PDT	Winter Storm Warning	OTX	18 hr
Mar 27, 3:37 PM PDT	Winter Storm Watch	OTX	12 hr
Mar 27, 8:51 PM PDT	Snow Advisory	OTX	37 hr
Mar 28, 3:44 AM PDT	Heavy Snow Warning	OTX	37 hr
Mar 29, 2:51 PM PDT	Snow Advisory	OTX	43 hr
Apr 4, 2:48 PM PDT	Snow Advisory	OTX	20 hr
Apr 8, 3:43 PM PDT	Snow Advisory	OTX	19 hr
Apr 14, 10:13 AM PDT	Areal Flood Advisory	OTX	24 hr
Apr 18, 3:06 PM PDT	Winter Storm Watch	OTX	45 hr
Apr 19, 1:00 PM PDT	Snow Advisory	OTX	54 hr
May 28, 2:03 PM PDT	Severe Thunderstorm Warning	OTX	57 min
May 28, 4:27 PM PDT	Areal Flood Advisory	OTX	14 days
Jun 9, 2:44 PM PDT	Snow Advisory	OTX	44 hr
Jul 3, 1:24 PM PDT	Mesoscale Discussion	SPC	3 hr
Aug 5, 1:32 PM PDT	Fire Weather Watch	MSO	41 hr
Aug 7, 2:45 AM PDT	Red Flag Warning	MSO	29 hr
Aug 8, 6:30 PM PDT	Severe Thunderstorm Warning	OTX	20 min
Aug 16, 12:55 PM PDT	Fire Weather Watch	MSO	24 hr
Aug 17, 12:54 PM PDT	Red Flag Warning	MSO	54 hr
Aug 18, 4:09 PM PDT	Severe Thunderstorm Watch	SPC	7 hr
Aug 18, 8:01 PM PDT	Severe Thunderstorm Warning	OTX	44 min
Aug 18, 8:18 PM PDT	Mesoscale Discussion	SPC	87 min
Sep 22, 2:44 AM PDT	Freeze Watch	OTX	6 hr
Sep 22, 8:28 AM PDT	Freeze Warning	OTX	25 hr
Oct 6, 2:34 PM PDT	Wind Advisory	OTX	30 hr
Nov 8, 9:23 PM PST	Dense Fog Advisory	OTX	15 hr
Nov 11, 2:19 PM PST	Wind Advisory	OTX	32 hr
Nov 14, 2:26 PM PST	Air Stagnation Advisory	OTX	4 days
Nov 28, 11:07 AM PST	Air Stagnation Advisory	OTX	5 days
Nov 29, 3:53 AM PST	Dense Fog Advisory	OTX	7 hr
Nov 29, 5:58 PM PST	Dense Fog Advisory	OTX	42 hr
Dec 5, 6:12 PM PST	Freezing Rain Advisory	OTX	12 hr
Dec 6, 4:20 AM PST	Mesoscale Discussion	SPC	4 hr
Dec 7, 3:39 AM PST	Winter Storm Warning	OTX	15 hr
Dec 10, 3:31 PM PST	Winter Storm Watch	OTX	47 hr
Dec 11, 3:29 PM PST	Winter Storm Warning	OTX	71 hr
Dec 11, 3:29 PM PST	Winter Weather Advisory	OTX	71 hr
Dec 11, 4:58 PM PST	Dense Fog Advisory	OTX	17 hr
Dec 13, 2:41 PM PST	Wind Chill Warning	OTX	44 hr
Dec 15, 2:59 PM PST	Winter Storm Watch	OTX	24 hr
Dec 16, 2:51 PM PST	Winter Storm Warning	OTX	61 hr
Dec 19, 4:00 AM PST	Winter Storm Watch	OTX	35 hr
Dec 20, 3:16 AM PST	Winter Storm Warning	OTX	9 days
Dec 20, 9:49 AM PST	Winter Storm Warning	OTX	54 hr
Dec 20, 2:41 PM PST	Winter Weather Advisory	OTX	43 hr
Dec 22, 3:30 PM PST	Winter Storm Watch	OTX	23 hr
Dec 23, 2:11 PM PST	Winter Storm Warning	OTX	53 hr
Dec 23, 2:11 PM PST	Winter Weather Advisory	OTX	43 hr
Dec 25, 3:11 PM PST	Winter Storm Watch	OTX	14 hr
Dec 26, 5:13 AM PST	Winter Storm Warning	OTX	4 days
Dec 27, 12:26 PM PST	Mesoscale Discussion	SPC	3 hr
Dec 28, 3:35 PM PST	Winter Storm Warning	OTX	30 hr
Dec 29, 1:32 PM PST	Wind Advisory	OTX	8 hr
Dec 29, 2:47 PM PST	Winter Storm Watch	OTX	24 hr
Dec 30, 2:50 PM PST	Winter Weather Advisory	OTX	37 hr
Dec 30, 3:07 PM PST	Wind Advisory	OTX	20 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	3
Severe Thunderstorm Watch	1
Mesoscale Discussion	5
Flooding
Areal Flood Advisory	3
Winter
Heavy Snow Warning	5
Winter Storm Warning	12
Winter Storm Watch	12
Freezing Rain Advisory	1
Snow Advisory	16
Snow and Blowing Snow Advisory	2
Winter Weather Advisory	4
Cold
Freeze Warning	1
Wind Chill Warning	1
Freeze Watch	1
Wind and dust
Wind Advisory	7
Fire
Red Flag Warning	2
Fire Weather Watch	2
Fog and smoke
Air Stagnation Advisory	2
Dense 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 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.