Alert archive / Washington / Columbia County

Weather alerts in Columbia County, Washington, 2013

66 weather alerts in 2013, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Columbia County and its neighbors

Each county as a circle sized by its count in 2013. Tap one for its archive.

Alerts
66
Warnings
21
Watches
7
Advisories
29
Busiest month
April14 alerts
Busiest day
September 6, 20134 alerts

Over time

By month

Warning verification

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

Columbia County, 2013

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings330%4100%23 min
Flash flood warnings110%1100%18 min

Each office's whole area, 2013

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Pendleton, OR: tornado warnings10100%0
NWS Pendleton, OR: severe thunderstorm warnings453424%12679%25 min
NWS Pendleton, OR: flash flood warnings12467%1354%44 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.

IssuedProductOfficeLasted
Jan 6, 6:40 AM PSTWinter Storm WatchPDT8 hr
Jan 6, 2:40 PM PSTWinter Storm WarningPDT23 hr
Jan 8, 3:05 AM PSTWind AdvisoryPDT31 hr
Jan 14, 2:40 PM PSTAir Stagnation AdvisoryPDT9 days
Jan 16, 2:58 PM PSTFreezing Fog AdvisoryPDT21 hr
Jan 18, 8:15 PM PSTFreezing Fog AdvisoryPDT14 hr
Jan 23, 12:24 PM PSTFreezing Rain AdvisoryPDT7 hr
Jan 23, 5:32 PM PSTMesoscale DiscussionSPC4 hr
Jan 23, 10:44 PM PSTFreezing Rain AdvisoryPDT2 hr
Jan 24, 1:50 PM PSTFreezing Rain AdvisoryPDT20 hr
Jan 27, 3:20 PM PSTWinter Storm WarningPDT60 hr
Feb 20, 2:52 PM PSTWinter Storm WatchPDT28 hr
Feb 20, 9:49 PM PSTWinter Storm WarningPDT65 hr
Feb 21, 6:32 PM PSTHigh Wind WatchPDT9 hr
Feb 21, 6:32 PM PSTWind AdvisoryPDT40 hr
Mar 19, 2:33 PM PDTWind AdvisoryPDT30 hr
Apr 4, 6:35 PM PDTSevere Thunderstorm WarningPDT55 min
Apr 6, 1:25 PM PDTWind AdvisoryPDT30 hr
Apr 7, 2:09 AM PDTWinter Weather AdvisoryPDT26 hr
Apr 10, 3:33 AM PDTWind AdvisoryPDT16 hr
Apr 12, 2:07 PM PDTWind AdvisoryPDT30 hr
Apr 14, 2:31 PM PDTFreeze WarningPDT18 hr
Apr 15, 1:59 PM PDTFreeze WarningPDT20 hr
Apr 15, 1:59 PM PDTFreeze WarningPDT24 hr
Apr 16, 2:04 PM PDTHard Freeze WarningPDT19 hr
Apr 18, 2:35 PM PDTWind AdvisoryPDT32 hr
Apr 22, 3:00 AM PDTFreeze WarningPDT29 hr
Apr 23, 1:56 PM PDTFreeze WarningPDT18 hr
Apr 28, 12:58 PM PDTWind AdvisoryPDT28 hr
Apr 30, 2:19 AM PDTFreeze WarningPDT30 hr
May 12, 1:30 PM PDTWind AdvisoryPDT33 hr
May 21, 2:43 PM PDTWinter Weather AdvisoryPDT24 hr
Jun 28, 2:32 PM PDTHeat AdvisoryPDT4 days
Aug 11, 5:04 PM PDTSevere Thunderstorm WarningPDT56 min
Aug 12, 5:28 PM PDTSpecial Weather StatementPDT62 min
Aug 16, 12:40 PM PDTMesoscale DiscussionSPC3 hr
Sep 3, 1:57 PM PDTSpecial Weather StatementPDT63 min
Sep 4, 8:49 PM PDTMesoscale DiscussionSPC116 min
Sep 5, 12:35 PM PDTSevere Thunderstorm WatchSPC7 hr
Sep 5, 4:01 PM PDTMesoscale DiscussionSPC89 min
Sep 5, 5:44 PM PDTSevere Thunderstorm WarningPDT61 min
Sep 5, 6:24 PM PDTFlash Flood WarningPDT3 hr
Sep 5, 7:13 PM PDTMesoscale DiscussionSPC2 hr
Sep 5, 9:44 PM PDTMesoscale DiscussionSPC2 hr
Sep 15, 3:00 PM PDTMesoscale DiscussionSPC3 hr
Sep 27, 1:56 PM PDTWind AdvisoryPDT3 days
Sep 29, 5:42 PM PDTHigh Wind WarningPDT11 hr
Oct 13, 2:43 PM PDTFreeze WarningPDT18 hr
Oct 14, 11:55 AM PDTFreeze WarningPDT20 hr
Oct 28, 2:23 PM PDTFreeze WarningPDT43 hr
Nov 1, 1:48 PM PDTWind AdvisoryPDT31 hr
Nov 6, 1:44 PM PSTWind AdvisoryPDT29 hr
Nov 13, 2:50 PM PSTWinter Storm WatchPDT24 hr
Nov 14, 3:07 PM PSTWinter Storm WarningPDT61 hr
Nov 15, 2:37 AM PSTWind AdvisoryPDT37 hr
Nov 21, 1:59 PM PSTAir Stagnation AdvisoryPDT9 days
Nov 30, 2:43 PM PSTWind AdvisoryPDT52 hr
Dec 2, 10:33 AM PSTWinter Weather AdvisoryPDT29 hr
Dec 4, 9:07 PM PSTWind Chill WatchPDT30 hr
Dec 6, 3:30 AM PSTWind Chill WarningPDT55 hr
Dec 12, 2:13 PM PSTWinter Weather AdvisoryPDT7 hr
Dec 18, 2:58 PM PSTWinter Storm WatchPDT24 hr
Dec 19, 2:38 PM PSTWinter Storm WarningPDT43 hr
Dec 19, 2:38 PM PSTWinter Weather AdvisoryPDT31 hr
Dec 24, 9:24 AM PSTAir Stagnation AdvisoryPDT10 days
Dec 26, 2:53 PM PSTDense Fog AdvisoryPDT5 days

By product

Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force nowTornadoes on recordForecastThe radar archive20122014

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.