Alert archive / Oregon / Gilliam County

Weather alerts in Gilliam County, Oregon, 2023

66 weather alerts in 2023, 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 2023. Tap one for its archive.

Alerts
66
Warnings
7
Watches
6
Advisories
49
Busiest month
January12 alerts
Busiest day
January 6, 20233 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, 2023

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

Each office's whole area, 2023

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Pendleton, OR: tornado warnings010%
NWS Pendleton, OR: severe thunderstorm warnings20385%1030%16 min
NWS Pendleton, OR: flash flood warnings130100%20%

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 1, 2:06 PM PSTFreezing Fog AdvisoryPDT18 hr
Jan 4, 3:19 AM PSTWinter Weather AdvisoryPDT31 hr
Jan 6, 4:11 AM PSTWind AdvisoryPDT57 hr
Jan 6, 6:43 AM PSTDense Fog AdvisoryPDT5 hr
Jan 6, 12:11 PM PSTFreezing Fog AdvisoryPDT3 hr
Jan 8, 1:57 PM PSTWind AdvisoryPDT25 hr
Jan 10, 4:15 AM PSTDense Fog AdvisoryPDT3 hr
Jan 10, 6:59 AM PSTDense Fog AdvisoryPDT21 hr
Jan 10, 2:05 PM PSTWind AdvisoryPDT3 days
Jan 13, 6:12 AM PSTDense Fog AdvisoryPDT30 hr
Jan 23, 11:58 AM PSTAir Stagnation AdvisoryPDT4 days
Jan 26, 2:50 AM PSTWind AdvisoryPDT31 hr
Feb 3, 2:15 PM PSTWinter Weather AdvisoryPDT61 hr
Feb 4, 1:13 PM PSTWinter Storm WarningPDT39 hr
Feb 4, 1:20 PM PSTWind AdvisoryPDT42 hr
Feb 12, 5:38 PM PSTWind AdvisoryPDT31 hr
Feb 18, 4:09 AM PSTHigh Wind WatchPDT34 hr
Feb 18, 4:09 AM PSTWind AdvisoryPDT41 hr
Feb 19, 2:16 PM PSTHigh Wind WarningPDT43 hr
Feb 19, 9:25 PM PSTWind AdvisoryPDT13 hr
Feb 20, 3:42 AM PSTWind AdvisoryPDT30 hr
Feb 22, 7:53 PM PSTWind Chill AdvisoryPDT37 hr
Feb 28, 7:17 PM PSTWinter Weather AdvisoryPDT3 hr
Mar 5, 1:17 PM PSTWinter Weather AdvisoryPDT9 hr
Mar 8, 2:48 PM PSTWinter Weather AdvisoryPDT55 hr
Mar 12, 9:12 PM PDTWind AdvisoryPDT21 hr
Mar 14, 12:24 PM PDTWinter Weather AdvisoryPDT17 hr
Mar 23, 3:20 AM PDTWind AdvisoryPDT20 hr
Mar 27, 3:51 AM PDTWinter Weather AdvisoryPDT51 hr
Mar 30, 2:41 PM PDTWinter Weather AdvisoryPDT3 days
May 3, 5:52 PM PDTSpecial Weather StatementPDT23 min
May 15, 11:28 AM PDTFlood WatchPDT11 hr
May 15, 3:15 PM PDTSpecial Weather StatementPDT45 min
May 19, 2:57 PM PDTMesoscale DiscussionSPC2 hr
May 19, 7:31 PM PDTSpecial Weather StatementPDT44 min
May 20, 7:36 PM PDTSevere Thunderstorm WarningPDT39 min
May 31, 2:48 PM PDTWind AdvisoryPDT8 hr
Jun 12, 3:21 AM PDTWind AdvisoryPDT44 hr
Jul 13, 1:03 PM PDTHeat AdvisoryPDT3 days
Aug 11, 1:17 PM PDTExcessive Heat WatchPDT38 hr
Aug 12, 2:02 PM PDTHeat AdvisoryPDT5 days
Aug 13, 3:16 AM PDTExcessive Heat WarningPDT5 days
Aug 19, 1:19 PM PDTFlood WatchPDT3 days
Aug 28, 3:47 AM PDTWind AdvisoryPDT43 hr
Sep 29, 5:36 PM PDTDense Fog AdvisoryPDT15 hr
Oct 22, 12:32 PM PDTWind AdvisoryPDT31 hr
Oct 24, 1:58 AM PDTFreeze WatchPDT25 hr
Oct 25, 2:38 AM PDTFreeze WarningPDT30 hr
Oct 26, 3:21 AM PDTFreeze WatchPDT24 hr
Oct 27, 3:01 AM PDTFreeze WarningPDT30 hr
Nov 4, 10:25 PM PDTDense Fog AdvisoryPDT14 hr
Nov 10, 2:08 PM PSTWind AdvisoryPDT29 hr
Nov 18, 12:42 AM PSTDense Fog AdvisoryPDT11 hr
Nov 27, 12:28 PM PSTAir Stagnation AdvisoryPDT71 hr
Nov 29, 2:15 PM PSTWinter Weather AdvisoryPDT4 days
Dec 1, 3:55 AM PSTWind AdvisoryPDT32 hr
Dec 2, 12:55 AM PSTHigh Wind WarningPDT11 hr
Dec 8, 1:56 PM PSTWinter Weather AdvisoryPDT58 hr
Dec 10, 8:41 PM PSTDense Fog AdvisoryPDT15 hr
Dec 11, 6:58 PM PSTDense Fog AdvisoryPDT15 hr
Dec 12, 8:27 PM PSTDense Fog AdvisoryPDT11 hr
Dec 14, 1:27 PM PSTAir Stagnation AdvisoryPDT4 days
Dec 17, 2:51 PM PSTWinter Weather AdvisoryPDT46 hr
Dec 21, 3:33 PM PSTDense Fog AdvisoryPDT18 hr
Dec 24, 1:30 PM PSTWinter Weather AdvisoryPDT41 hr
Dec 27, 9:23 PM PSTDense Fog AdvisoryPDT4 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 archive20222024

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.