Alert archive / Oregon / Gilliam County

Weather alerts in Gilliam County, Oregon, 2012

72 weather alerts in 2012, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Gilliam County and its neighbors

Each county as a circle sized by its count in 2012. Tap one for its archive.

Alerts
72
Warnings
15
Watches
13
Advisories
38
Busiest month
December16 alerts
Busiest day
February 24, 20123 alerts

Over time

By month

Warning verification

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

Gilliam County, 2012

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings4250%0
Flash flood warnings10100%0

Each office's whole area, 2012

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Pendleton, OR: tornado warnings10100%0
NWS Pendleton, OR: severe thunderstorm warnings352529%7267%21 min
NWS Pendleton, OR: flash flood warnings60100%50%

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 15, 2:59 PM PSTWinter Storm WatchPDT30 hr
Jan 16, 4:05 AM PSTWinter Storm WarningPDT59 hr
Jan 18, 2:47 PM PSTWinter Storm WatchPDT5 hr
Jan 18, 7:58 PM PSTWinter Storm WarningPDT30 hr
Jan 18, 7:58 PM PSTWinter Weather AdvisoryPDT26 hr
Jan 20, 3:22 AM PSTFreezing Rain AdvisoryPDT22 hr
Jan 23, 2:37 PM PSTWinter Weather AdvisoryPDT32 hr
Jan 26, 9:40 AM PSTWind AdvisoryPDT6 hr
Feb 2, 9:25 AM PSTAir Stagnation AdvisoryPDT5 days
Feb 3, 6:26 AM PSTFreezing Fog AdvisoryPDT6 hr
Feb 4, 6:30 PM PSTFreezing Fog AdvisoryPDT17 hr
Feb 5, 11:27 AM PSTFreezing Fog AdvisoryPDT47 hr
Feb 9, 11:01 PM PSTDense Fog AdvisoryPDT13 hr
Feb 20, 2:38 PM PSTHigh Wind WatchPDT14 hr
Feb 21, 4:28 AM PSTHigh Wind WarningPDT39 hr
Feb 23, 7:01 PM PSTHigh Wind WatchPDT10 hr
Feb 24, 4:31 AM PSTHigh Wind WarningPDT40 hr
Feb 24, 4:53 AM PSTWinter Weather AdvisoryPDT42 hr
Mar 4, 10:15 PM PSTWind AdvisoryPDT21 hr
Mar 11, 2:32 PM PDTHigh Wind WarningPDT41 hr
Mar 11, 2:32 PM PDTWind AdvisoryPDT53 hr
Mar 14, 2:55 PM PDTWind AdvisoryPDT18 hr
Mar 19, 3:12 PM PDTWinter Weather AdvisoryPDT66 hr
Mar 29, 1:34 PM PDTFlood WatchPDT43 hr
Mar 29, 7:44 PM PDTWind AdvisoryPDT15 hr
Mar 30, 9:30 PM PDTWind AdvisoryPDT11 hr
Apr 1, 3:44 AM PDTWind AdvisoryPDT11 hr
Apr 2, 2:20 PM PDTWinter Weather AdvisoryPDT48 hr
Apr 23, 6:23 PM PDTSevere Thunderstorm WarningPDT65 min
Apr 23, 7:32 PM PDTSpecial Weather StatementPDT58 min
Jun 4, 12:54 PM PDTFlood WatchPDT25 hr
Jun 9, 3:47 AM PDTWind AdvisoryPDT18 hr
Jun 17, 3:38 AM PDTWind AdvisoryPDT19 hr
Jul 8, 3:21 PM PDTMesoscale DiscussionSPC54 min
Jul 9, 4:46 PM PDTMesoscale DiscussionSPC59 min
Jul 14, 5:23 PM PDTMesoscale DiscussionSPC67 min
Jul 14, 7:07 PM PDTSevere Thunderstorm WarningPDT34 min
Jul 15, 12:42 PM PDTWind AdvisoryPDT7 hr
Jul 15, 6:22 PM PDTFlash Flood WatchPDT5 days
Jul 17, 3:51 PM PDTMesoscale DiscussionSPC54 min
Jul 17, 4:42 PM PDTSevere Thunderstorm WarningPDT63 min
Jul 17, 5:43 PM PDTFlash Flood WarningPDT108 min
Jul 17, 5:48 PM PDTSevere Thunderstorm WarningPDT42 min
Jul 19, 4:11 PM PDTMesoscale DiscussionSPC94 min
Aug 17, 2:22 PM PDTHeat AdvisoryPDT20 hr
Oct 3, 1:15 PM PDTFreeze WarningPDT44 hr
Oct 15, 2:39 AM PDTWind AdvisoryPDT41 hr
Nov 11, 3:27 AM PSTWinter Weather AdvisoryPDT39 hr
Nov 14, 7:24 PM PSTDense Fog AdvisoryPDT16 hr
Nov 17, 6:22 AM PSTDense Fog AdvisoryPDT4 hr
Nov 17, 2:06 PM PSTHigh Wind WatchPDT24 hr
Nov 18, 2:10 PM PSTHigh Wind WarningPDT33 hr
Nov 20, 8:03 PM PSTWind AdvisoryPDT20 hr
Nov 26, 1:46 PM PSTFreezing Fog AdvisoryPDT49 hr
Nov 27, 3:11 PM PSTWinter Weather AdvisoryPDT26 hr
Nov 30, 1:59 PM PSTHigh Wind WatchPDT26 hr
Dec 1, 2:13 PM PSTWind AdvisoryPDT30 hr
Dec 3, 2:11 PM PSTWind AdvisoryPDT20 hr
Dec 5, 2:42 PM PSTWinter Weather AdvisoryPDT3 days
Dec 7, 8:54 AM PSTWind AdvisoryPDT13 hr
Dec 14, 3:15 PM PSTWinter Weather AdvisoryPDT32 hr
Dec 15, 2:45 PM PSTHigh Wind WatchPDT12 hr
Dec 15, 2:46 PM PSTBlizzard WatchPDT12 hr
Dec 16, 2:41 AM PSTWind AdvisoryPDT37 hr
Dec 16, 3:08 AM PSTBlizzard WarningPDT30 hr
Dec 18, 2:58 PM PSTHigh Wind WatchPDT5 hr
Dec 18, 3:48 PM PSTWinter Weather AdvisoryPDT47 hr
Dec 18, 8:01 PM PSTHigh Wind WarningPDT42 hr
Dec 22, 4:03 PM PSTWinter Weather AdvisoryPDT44 hr
Dec 23, 2:36 PM PSTWinter Storm WatchPDT24 hr
Dec 24, 2:55 PM PSTWinter Storm WarningPDT43 hr
Dec 24, 2:55 PM PSTWinter Weather AdvisoryPDT43 hr

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 archive20112013

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.