Alert archive / Ohio / Guernsey County

Weather alerts in Guernsey County, Ohio, 2019

124 weather alerts in 2019, 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 2019. Tap one for its archive.

Alerts
124
Warnings
34
Watches
16
Advisories
28
Busiest month
July21 alerts
Busiest day
April 14, 20197 alerts

Over time

By month

Warning verification

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

1 of 2 tornado warnings covering Guernsey County in 2019 had a tornado report inside them.

Guernsey County, 2019

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings2150%0
Severe thunderstorm warnings201620%1182%20 min
Flash flood warnings10100%0

Each office's whole area, 2019

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Pittsburgh, PA: tornado warnings19763%1650%8 min
NWS Pittsburgh, PA: severe thunderstorm warnings31123126%61182%19 min
NWS Pittsburgh, PA: flash flood warnings1058024%28287%67 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 8, 1:54 PM ESTMesoscale DiscussionSPC2 hr
Jan 11, 2:08 PM ESTWinter Weather AdvisoryPBZ51 hr
Jan 16, 4:45 AM ESTWinter Weather AdvisoryPBZ6 hr
Jan 17, 2:54 PM ESTWinter Storm WatchPBZ22 hr
Jan 18, 1:10 PM ESTWinter Storm WarningPBZ48 hr
Jan 18, 1:10 PM ESTWinter Weather AdvisoryPBZ48 hr
Jan 19, 4:57 PM ESTWinter Weather AdvisoryPBZ17 hr
Jan 20, 10:03 AM ESTWind Chill AdvisoryPBZ27 hr
Jan 23, 9:14 PM ESTRiver Flood WarningPBZ49 hr
Jan 25, 1:57 AM ESTRiver Flood WarningPBZ30 hr
Jan 28, 11:52 PM ESTWinter Weather AdvisoryPBZ9 hr
Jan 29, 3:36 AM ESTWind Chill AdvisoryPBZ59 hr
Jan 30, 2:21 AM ESTSpecial Weather StatementPBZ54 min
Jan 30, 3:20 AM ESTSpecial Weather StatementPBZ55 min
Jan 31, 2:45 PM ESTWinter Weather AdvisoryPBZ24 hr
Feb 6, 11:10 AM ESTFlood WatchPBZ41 hr
Feb 6, 1:19 PM ESTAreal Flood WarningPBZ5 hr
Feb 6, 11:10 PM ESTDense Fog AdvisoryPBZ11 hr
Feb 7, 8:26 AM ESTAreal Flood AdvisoryPBZ13 hr
Feb 7, 4:59 PM ESTSpecial Weather StatementPBZ61 min
Feb 7, 10:54 PM ESTRiver Flood WarningPBZ60 hr
Feb 8, 5:34 AM ESTAreal Flood WarningPBZ12 hr
Feb 11, 9:54 AM ESTFlood WatchPBZ36 hr
Feb 11, 12:01 PM ESTRiver Flood WarningPBZ3 days
Feb 12, 2:19 PM ESTWind AdvisoryPBZ26 hr
Feb 12, 3:34 PM ESTAreal Flood WarningPBZ9 hr
Feb 13, 12:17 AM ESTAreal Flood WarningPBZ3 hr
Feb 17, 3:18 AM ESTWinter Weather AdvisoryPBZ22 hr
Feb 19, 3:05 AM ESTWinter Weather AdvisoryPBZ45 hr
Feb 19, 3:08 AM ESTFlood WatchPBZ40 hr
Feb 20, 3:25 AM ESTMesoscale DiscussionSPC6 hr
Feb 22, 3:35 AM ESTHigh Wind WatchPBZ35 hr
Feb 23, 2:34 PM ESTHigh Wind WarningPBZ43 hr
Feb 24, 7:45 PM ESTWind AdvisoryPBZ14 hr
Mar 2, 1:31 PM ESTWinter Weather AdvisoryPBZ35 hr
Mar 14, 8:26 PM EDTMesoscale DiscussionSPC94 min
Mar 14, 8:43 PM EDTSevere Thunderstorm WarningPBZ20 min
Mar 14, 11:51 PM EDTSpecial Weather StatementPBZ24 min
Apr 14, 4:11 PM EDTTornado WatchSPC4 hr
Apr 14, 4:49 PM EDTMesoscale DiscussionSPC116 min
Apr 14, 5:20 PM EDTSevere Thunderstorm WarningPBZ40 min
Apr 14, 5:23 PM EDTSevere Thunderstorm WarningPBZ52 min
Apr 14, 5:58 PM EDTSevere Thunderstorm WarningPBZ47 min
Apr 14, 6:24 PM EDTSpecial Weather StatementPBZ36 min
Apr 14, 6:36 PM EDTSevere Thunderstorm WarningPBZ39 min
May 17, 3:17 PM EDTMesoscale DiscussionSPC88 min
May 17, 4:58 PM EDTSpecial Weather StatementPBZ32 min
May 17, 7:37 PM EDTMesoscale DiscussionSPC113 min
May 22, 5:57 PM EDTMesoscale DiscussionSPC2 hr
May 23, 9:16 AM EDTSpecial Weather StatementPBZ29 min
May 23, 5:37 PM EDTSevere Thunderstorm WatchSPC5 hr
May 23, 5:44 PM EDTMesoscale DiscussionSPC61 min
May 23, 8:02 PM EDTMesoscale DiscussionSPC118 min
May 25, 1:07 PM EDTMesoscale DiscussionSPC83 min
May 25, 4:05 PM EDTSevere Thunderstorm WarningPBZ40 min
May 25, 4:10 PM EDTTornado WarningPBZ35 min
May 25, 4:43 PM EDTSevere Thunderstorm WarningPBZ47 min
May 25, 4:50 PM EDTSevere Thunderstorm WatchSPC5 hr
May 27, 11:32 PM EDTMesoscale DiscussionSPC88 min
May 28, 12:08 AM EDTTornado WatchSPC4 hr
May 28, 2:03 AM EDTMesoscale DiscussionSPC117 min
May 28, 12:16 PM EDTMesoscale DiscussionSPC119 min
May 29, 3:37 AM EDTFlash Flood WatchPBZ17 hr
May 29, 2:31 PM EDTSevere Thunderstorm WarningPBZ44 min
May 30, 7:09 AM EDTSpecial Weather StatementPBZ36 min
Jun 5, 5:28 PM EDTMesoscale DiscussionSPC62 min
Jun 5, 5:45 PM EDTSevere Thunderstorm WatchSPC4 hr
Jun 5, 7:02 PM EDTSevere Thunderstorm WarningPBZ20 min
Jun 5, 8:29 PM EDTSpecial Weather StatementPBZ31 min
Jun 5, 8:55 PM EDTMesoscale DiscussionSPC65 min
Jun 17, 3:38 AM EDTFlash Flood WatchPBZ4 days
Jun 24, 11:48 AM EDTMesoscale DiscussionSPC117 min
Jun 24, 3:37 PM EDTSevere Thunderstorm WatchSPC5 hr
Jun 24, 4:23 PM EDTSevere Thunderstorm WarningPBZ52 min
Jun 24, 4:42 PM EDTMesoscale DiscussionSPC93 min
Jun 24, 4:46 PM EDTTornado WarningPBZ29 min
Jun 24, 5:05 PM EDTSevere Thunderstorm WarningPBZ40 min
Jun 24, 5:22 PM EDTSevere Thunderstorm WarningPBZ53 min
Jul 2, 1:25 PM EDTMesoscale DiscussionSPC95 min
Jul 2, 1:51 PM EDTSpecial Weather StatementPBZ24 min
Jul 2, 3:10 PM EDTMesoscale DiscussionSPC95 min
Jul 2, 3:27 PM EDTSpecial Weather StatementPBZ33 min
Jul 2, 6:18 PM EDTMesoscale DiscussionSPC117 min
Jul 2, 7:23 PM EDTSevere Thunderstorm WarningPBZ67 min
Jul 3, 3:31 PM EDTFlash Flood WarningPBZ119 min
Jul 6, 2:36 PM EDTMesoscale DiscussionSPC2 hr
Jul 6, 6:11 PM EDTSpecial Weather StatementPBZ49 min
Jul 6, 7:58 PM EDTAreal Flood AdvisoryPBZ102 min
Jul 7, 12:05 PM EDTFlash Flood WatchPBZ9 hr
Jul 11, 10:45 AM EDTMesoscale DiscussionSPC90 min
Jul 11, 1:31 PM EDTMesoscale DiscussionSPC89 min
Jul 11, 5:43 PM EDTSpecial Weather StatementPBZ47 min
Jul 11, 5:47 PM EDTAreal Flood AdvisoryPBZ118 min
Jul 11, 6:15 PM EDTAreal Flood AdvisoryPBZ2 hr
Jul 15, 8:23 PM EDTSevere Thunderstorm WarningPBZ52 min
Jul 17, 3:21 PM EDTExcessive Heat WatchPBZ24 hr
Jul 18, 3:26 PM EDTExcessive Heat WarningPBZ53 hr
Jul 21, 12:00 PM EDTMesoscale DiscussionSPC3 hr
Jul 30, 7:38 PM EDTSevere Thunderstorm WarningPBZ22 min
Aug 6, 5:29 PM EDTSpecial Weather StatementPBZ46 min
Aug 7, 4:07 PM EDTAreal Flood AdvisoryPBZ44 min
Aug 8, 12:37 PM EDTSevere Thunderstorm WatchSPC7 hr
Aug 8, 3:46 PM EDTSevere Thunderstorm WarningPBZ28 min
Aug 15, 3:09 PM EDTSevere Thunderstorm WarningPBZ35 min
Aug 19, 12:54 AM EDTSevere Thunderstorm WarningPBZ36 min
Aug 19, 1:28 AM EDTSpecial Weather StatementPBZ47 min
Aug 20, 7:48 PM EDTSpecial Weather StatementPBZ27 min
Aug 20, 8:28 PM EDTSpecial Weather StatementPBZ32 min
Aug 20, 9:16 PM EDTAreal Flood AdvisoryPBZ114 min
Aug 20, 10:02 PM EDTSevere Thunderstorm WarningPBZ43 min
Sep 1, 3:03 PM EDTMesoscale DiscussionSPC117 min
Sep 1, 7:26 PM EDTMesoscale DiscussionSPC94 min
Sep 1, 10:26 PM EDTSpecial Weather StatementPBZ34 min
Sep 28, 5:01 PM EDTSpecial Weather StatementPBZ44 min
Sep 28, 5:25 PM EDTSevere Thunderstorm WarningPBZ50 min
Sep 28, 5:51 PM EDTMesoscale DiscussionSPC114 min
Oct 8, 12:13 AM EDTDense Fog AdvisoryPBZ10 hr
Oct 12, 3:26 AM EDTFrost AdvisoryPBZ31 hr
Oct 18, 2:30 PM EDTFrost AdvisoryPBZ20 hr
Oct 31, 3:17 AM EDTWind AdvisoryPBZ31 hr
Nov 26, 11:37 AM ESTWind AdvisoryPBZ39 hr
Dec 15, 4:09 AM ESTWinter Weather AdvisoryPBZ30 hr
Dec 16, 3:54 AM ESTWinter Weather AdvisoryPBZ31 hr
Dec 24, 5:10 PM ESTDense Fog AdvisoryPBZ17 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 archive20182020

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.