Alert archive / Ohio / Guernsey County

Weather alerts in Guernsey County, Ohio, 2010

150 weather alerts in 2010, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Guernsey County and its neighbors

Each county as a circle sized by its count in 2010. Tap one for its archive.

Alerts
150
Warnings
45
Watches
30
Advisories
19
Busiest month
June54 alerts
Busiest day
June 5, 201013 alerts

Over time

By month

Warning verification

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

0 of 2 tornado warnings covering Guernsey County in 2010 had a tornado report inside them.

Guernsey County, 2010

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings20100%0
Severe thunderstorm warnings321844%5100%44 min
Flash flood warnings110%0

Each office's whole area, 2010

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Pittsburgh, PA: tornado warnings13192%425%4 min
NWS Pittsburgh, PA: severe thunderstorm warnings20412439%29082%26 min
NWS Pittsburgh, PA: flash flood warnings241538%2990%73 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, Eastern Time. Each opens its own page with the text, the map, the radar and the sounding.

IssuedProductOfficeLasted
Jan 6, 8:56 AM ESTWinter Weather AdvisoryPBZ3 hr
Jan 6, 3:27 PM ESTWinter Weather AdvisoryPBZ67 hr
Feb 3, 3:00 PM ESTWinter Storm WatchPBZ24 hr
Feb 4, 2:31 PM ESTWinter Storm WarningPBZ50 hr
Feb 5, 11:49 AM ESTMesoscale DiscussionSPC5 hr
Feb 7, 3:04 PM ESTWinter Storm WatchPBZ24 hr
Feb 8, 3:19 PM ESTWinter Storm WarningPBZ54 hr
Feb 14, 4:52 PM ESTWinter Weather AdvisoryPBZ4 days
Feb 14, 10:36 PM ESTWinter Storm WarningPBZ4 days
Feb 15, 1:41 PM ESTMesoscale DiscussionSPC5 hr
Feb 18, 12:05 PM ESTWinter Weather AdvisoryPBZ4 hr
Feb 24, 11:32 PM ESTWinter Weather AdvisoryPBZ9 hr
Feb 25, 2:54 AM ESTWinter Weather AdvisoryPBZ50 hr
Mar 10, 4:19 AM ESTFlood WatchPBZ4 days
Mar 13, 7:41 AM ESTRiver Flood WatchPBZ7 hr
Apr 3, 3:50 AM EDTFire Weather WatchPBZ12 hr
Apr 3, 10:18 AM EDTRed Flag WarningPBZ10 hr
Apr 16, 12:44 PM EDTMesoscale DiscussionSPC2 hr
Apr 16, 1:28 PM EDTSevere Thunderstorm WatchSPC7 hr
Apr 16, 3:35 PM EDTSevere Thunderstorm WarningPBZ55 min
Apr 16, 4:26 PM EDTSevere Thunderstorm WarningPBZ49 min
Apr 16, 4:34 PM EDTMesoscale DiscussionSPC86 min
Apr 16, 6:14 PM EDTMesoscale DiscussionSPC61 min
Apr 25, 10:56 AM EDTMesoscale DiscussionSPC2 hr
Apr 25, 11:54 AM EDTSevere Thunderstorm WatchSPC6 hr
Apr 25, 1:03 PM EDTSevere Thunderstorm WarningPBZ42 min
Apr 25, 1:25 PM EDTSevere Thunderstorm WarningPBZ50 min
Apr 25, 1:55 PM EDTSevere Thunderstorm WarningPBZ50 min
Apr 25, 2:26 PM EDTMesoscale DiscussionSPC94 min
Apr 25, 2:47 PM EDTSevere Thunderstorm WarningPBZ43 min
Apr 27, 3:17 AM EDTFreeze WatchPBZ11 hr
Apr 27, 2:31 PM EDTFreeze WarningPBZ18 hr
Apr 28, 3:09 PM EDTFrost AdvisoryPBZ18 hr
May 2, 2:04 PM EDTFlash Flood WatchPBZ13 hr
May 7, 7:25 PM EDTMesoscale DiscussionSPC95 min
May 7, 9:17 PM EDTMesoscale DiscussionSPC58 min
May 7, 9:31 PM EDTSevere Thunderstorm WatchSPC5 hr
May 8, 3:04 PM EDTFreeze WatchPBZ12 hr
May 9, 3:22 AM EDTFrost AdvisoryPBZ18 hr
May 9, 3:22 AM EDTFreeze WarningPBZ29 hr
May 13, 1:46 PM EDTTornado WatchSPC6 hr
May 23, 2:11 AM EDTDense Fog AdvisoryPBZ7 hr
May 27, 9:47 PM EDTSpecial Weather StatementPBZ58 min
Jun 2, 1:09 PM EDTMesoscale DiscussionSPC66 min
Jun 2, 1:39 PM EDTSevere Thunderstorm WatchSPC6 hr
Jun 2, 4:14 PM EDTMesoscale DiscussionSPC91 min
Jun 2, 8:50 PM EDTSevere Thunderstorm WarningPBZ40 min
Jun 2, 9:28 PM EDTSevere Thunderstorm WarningPBZ62 min
Jun 4, 12:15 PM EDTMesoscale DiscussionSPC60 min
Jun 4, 1:14 PM EDTSevere Thunderstorm WatchSPC9 hr
Jun 4, 4:29 PM EDTSpecial Weather StatementPBZ61 min
Jun 4, 4:45 PM EDTSevere Thunderstorm WarningPBZ60 min
Jun 4, 5:40 PM EDTSevere Thunderstorm WarningPBZ65 min
Jun 4, 7:18 PM EDTSevere Thunderstorm WarningPBZ57 min
Jun 4, 7:30 PM EDTMesoscale DiscussionSPC60 min
Jun 4, 8:16 PM EDTSevere Thunderstorm WarningPBZ59 min
Jun 4, 8:40 PM EDTAreal Flood WarningPBZ4 hr
Jun 5, 3:15 AM EDTFlash Flood WatchPBZ32 hr
Jun 5, 4:31 AM EDTSpecial Weather StatementPBZ59 min
Jun 5, 8:51 AM EDTMesoscale DiscussionSPC114 min
Jun 5, 9:52 AM EDTAreal Flood WarningPBZ8 hr
Jun 5, 1:35 PM EDTMesoscale DiscussionSPC85 min
Jun 5, 2:08 PM EDTSevere Thunderstorm WatchSPC6 hr
Jun 5, 2:32 PM EDTSevere Thunderstorm WarningPBZ43 min
Jun 5, 3:13 PM EDTTornado WatchSPC4 hr
Jun 5, 3:33 PM EDTSevere Thunderstorm WarningPBZ42 min
Jun 5, 4:22 PM EDTSevere Thunderstorm WarningPBZ23 min
Jun 5, 5:44 PM EDTFlash Flood WarningPBZ4 hr
Jun 5, 9:46 PM EDTAreal Flood WarningPBZ4 hr
Jun 6, 2:03 AM EDTTornado WatchSPC7 hr
Jun 6, 3:38 AM EDTMesoscale DiscussionSPC2 hr
Jun 6, 6:23 AM EDTSpecial Weather StatementPBZ37 min
Jun 6, 7:03 AM EDTSpecial Weather StatementPBZ42 min
Jun 6, 7:05 AM EDTMesoscale DiscussionSPC115 min
Jun 6, 7:36 AM EDTSevere Thunderstorm WarningPBZ24 min
Jun 6, 7:51 AM EDTTornado WatchSPC7 hr
Jun 6, 7:55 AM EDTSevere Thunderstorm WarningPBZ65 min
Jun 13, 1:00 AM EDTSpecial Weather StatementPBZ60 min
Jun 15, 2:10 AM EDTSpecial Weather StatementPBZ50 min
Jun 15, 9:21 PM EDTSevere Thunderstorm WatchSPC4 hr
Jun 15, 11:28 PM EDTMesoscale DiscussionSPC62 min
Jun 16, 1:39 PM EDTMesoscale DiscussionSPC96 min
Jun 22, 4:25 AM EDTSevere Thunderstorm WatchSPC4 hr
Jun 22, 5:56 AM EDTSevere Thunderstorm WarningPBZ64 min
Jun 23, 1:37 PM EDTSevere Thunderstorm WatchSPC7 hr
Jun 23, 1:44 PM EDTSpecial Weather StatementPBZ46 min
Jun 23, 2:21 PM EDTSevere Thunderstorm WarningPBZ39 min
Jun 23, 2:54 PM EDTSevere Thunderstorm WarningPBZ51 min
Jun 23, 3:13 PM EDTMesoscale DiscussionSPC92 min
Jun 23, 4:41 PM EDTSevere Thunderstorm WarningPBZ49 min
Jun 23, 5:08 PM EDTSevere Thunderstorm WarningPBZ37 min
Jun 23, 6:22 PM EDTAreal Flood AdvisoryPBZ3 hr
Jun 26, 8:37 PM EDTSpecial Weather StatementPBZ53 min
Jun 27, 12:52 PM EDTMesoscale DiscussionSPC2 hr
Jun 27, 9:05 PM EDTSevere Thunderstorm WarningPBZ55 min
Jun 27, 10:05 PM EDTSpecial Weather StatementPBZ55 min
Jun 28, 5:05 PM EDTSpecial Weather StatementPBZ55 min
Jul 13, 10:08 PM EDTFlash Flood WatchPBZ5 hr
Jul 13, 10:50 PM EDTAreal Flood AdvisoryPBZ3 hr
Jul 18, 4:59 AM EDTSpecial Weather StatementPBZ61 min
Jul 18, 7:10 PM EDTSpecial Weather StatementPBZ35 min
Jul 23, 3:30 AM EDTHeat AdvisoryPBZ40 hr
Jul 25, 10:19 AM EDTSpecial Weather StatementPBZ41 min
Jul 25, 4:31 PM EDTSpecial Weather StatementPBZ59 min
Jul 28, 8:36 PM EDTTornado WarningPBZ24 min
Aug 4, 1:58 PM EDTMesoscale DiscussionSPC62 min
Aug 4, 2:18 PM EDTSevere Thunderstorm WatchSPC7 hr
Aug 4, 2:20 PM EDTSevere Thunderstorm WarningPBZ55 min
Aug 4, 3:09 PM EDTSevere Thunderstorm WarningPBZ51 min
Aug 4, 3:52 PM EDTMesoscale DiscussionSPC53 min
Aug 4, 9:26 PM EDTMesoscale DiscussionSPC64 min
Aug 4, 10:08 PM EDTSevere Thunderstorm WatchSPC6 hr
Aug 4, 11:52 PM EDTMesoscale DiscussionSPC113 min
Aug 4, 11:54 PM EDTSpecial Weather StatementPBZ51 min
Aug 5, 12:05 AM EDTSevere Thunderstorm WarningPBZ40 min
Aug 14, 1:15 PM EDTMesoscale DiscussionSPC2 hr
Aug 14, 5:38 PM EDTSpecial Weather StatementPBZ37 min
Aug 21, 7:09 PM EDTSpecial Weather StatementPBZ51 min
Sep 16, 4:29 PM EDTMesoscale DiscussionSPC91 min
Sep 16, 4:59 PM EDTSpecial Weather StatementPBZ61 min
Sep 16, 5:02 PM EDTSevere Thunderstorm WatchSPC3 hr
Sep 16, 6:04 PM EDTMesoscale DiscussionSPC56 min
Sep 16, 7:43 PM EDTMesoscale DiscussionSPC62 min
Sep 22, 2:12 PM EDTSpecial Weather StatementPBZ48 min
Sep 22, 2:18 PM EDTSevere Thunderstorm WarningPBZ42 min
Sep 22, 2:32 PM EDTSevere Thunderstorm WarningPBZ43 min
Sep 22, 2:34 PM EDTSevere Thunderstorm WatchSPC6 hr
Sep 22, 2:55 PM EDTSevere Thunderstorm WarningPBZ50 min
Sep 22, 3:16 PM EDTSevere Thunderstorm WarningPBZ44 min
Sep 22, 4:03 PM EDTMesoscale DiscussionSPC57 min
Sep 22, 6:33 PM EDTSpecial Weather StatementPBZ57 min
Oct 19, 2:17 PM EDTFrost AdvisoryPBZ19 hr
Oct 21, 2:24 PM EDTFreeze WarningPBZ19 hr
Oct 26, 3:40 AM EDTWind AdvisoryPBZ15 hr
Oct 26, 1:09 PM EDTMesoscale DiscussionSPC66 min
Oct 26, 1:36 PM EDTTornado WatchSPC7 hr
Oct 26, 2:30 PM EDTSevere Thunderstorm WarningPBZ75 min
Oct 26, 2:46 PM EDTTornado WarningPBZ44 min
Oct 26, 3:41 PM EDTSevere Thunderstorm WarningPBZ64 min
Oct 26, 5:45 PM EDTMesoscale DiscussionSPC90 min
Nov 16, 5:34 PM ESTSpecial Weather StatementPBZ56 min
Nov 16, 11:30 PM ESTSpecial Weather StatementPBZ60 min
Nov 17, 1:10 AM ESTSpecial Weather StatementPBZ110 min
Nov 24, 3:13 PM ESTFlood WatchPBZ32 hr
Nov 29, 1:09 PM ESTFlood WatchPBZ39 hr
Nov 29, 1:09 PM ESTWind AdvisoryPBZ32 hr
Dec 12, 3:43 AM ESTWinter Weather AdvisoryPBZ63 hr
Dec 13, 3:08 AM ESTWind Chill AdvisoryPBZ55 hr
Dec 29, 2:58 PM ESTWinter Weather AdvisoryPBZ8 hr
Dec 29, 10:30 PM ESTFreezing Rain AdvisoryPBZ13 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 archive20092011

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.