Alert archive / Washington / Grays Harbor County

Weather alerts in Grays Harbor County, Washington, 2014

15 weather alerts in 2014, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Grays Harbor County and its neighbors

Each county as a circle sized by its count in 2014. Tap one for its archive.

Alerts
15
Warnings
5
Watches
8
Advisories
0
Busiest month
January2 alerts
Busiest day
January 10, 20141 alerts

Over time

By month

Warning verification

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

Grays Harbor County, 2014

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

Each office's whole area, 2014

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Seattle, WA: tornado warnings10100%10%
NWS Seattle, WA: severe thunderstorm warnings20100%50%
NWS Seattle, WA: flash flood warnings030%

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 10, 2:34 AM PSTFlood WatchSEW32 hr
Jan 11, 9:27 AM PSTMesoscale DiscussionSPC2 hr
Feb 15, 4:27 AM PSTFlood WatchSEW4 days
Feb 17, 3:39 PM PSTRiver Flood WarningSEW4 days
Mar 4, 12:30 PM PSTFlood WatchSEW7 days
Mar 15, 3:51 AM PDTFlood WatchSEW36 hr
Aug 10, 2:07 PM PDTFire Weather WatchSEW17 hr
Aug 11, 7:36 AM PDTRed Flag WarningSEW39 hr
Sep 5, 8:06 AM PDTRed Flag WarningSEW12 hr
Sep 10, 10:43 AM PDTRed Flag WarningSEW4 days
Oct 21, 3:25 AM PDTFlood WatchSEW33 hr
Oct 23, 1:34 PM PDTSevere Thunderstorm WarningSEW26 min
Nov 23, 7:14 AM PSTSpecial Weather StatementSEW46 min
Dec 7, 3:14 PM PSTFlood WatchSEW4 days
Dec 19, 11:39 AM PSTFlood WatchSEW48 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 archive20132015

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.