Alert archive / Ohio / Gallia County

Weather alerts in Gallia County, Ohio, 2010

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

Gallia County and its neighbors

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

Alerts
129
Warnings
32
Watches
28
Advisories
22
Busiest month
June27 alerts
Busiest day
August 5, 20108 alerts

Over time

By month

Warning verification

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

Gallia County, 2010

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings151220%1090%29 min
Flash flood warnings3233%0

Each office's whole area, 2010

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Charleston, WV: tornado warnings11464%1669%26 min
NWS Charleston, WV: severe thunderstorm warnings1358736%29279%25 min
NWS Charleston, WV: flash flood warnings583048%12086%100 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, 3:47 PM ESTWinter Weather AdvisoryRLX3 days
Jan 26, 3:11 PM ESTRiver Flood WarningRLX47 hr
Jan 29, 3:58 AM ESTWinter Weather AdvisoryRLX39 hr
Feb 4, 4:08 AM ESTWinter Storm WarningRLX61 hr
Feb 4, 4:41 PM ESTWinter Weather AdvisoryRLX22 hr
Feb 8, 3:50 PM ESTWinter Storm WarningRLX63 hr
Feb 13, 3:37 PM ESTWinter Storm WatchRLX23 hr
Feb 14, 3:05 PM ESTWinter Storm WarningRLX4 days
Feb 14, 3:05 PM ESTWinter Weather AdvisoryRLX5 days
Feb 24, 2:33 PM ESTWinter Weather AdvisoryRLX67 hr
Mar 11, 1:06 PM ESTFlood WatchRLX68 hr
Mar 12, 11:09 PM ESTAreal Flood WarningRLX8 hr
Mar 13, 6:17 AM ESTAreal Flood WarningRLX10 hr
Mar 13, 11:29 AM ESTRiver Flood WarningRLX4 days
Apr 2, 12:42 PM EDTFire Weather WatchRLX24 hr
Apr 3, 7:46 AM EDTRed Flag WarningRLX12 hr
Apr 5, 11:06 PM EDTSevere Thunderstorm WarningRLX54 min
Apr 5, 11:50 PM EDTSevere Thunderstorm WarningRLX40 min
Apr 9, 4:31 AM EDTFreeze WatchRLX10 hr
Apr 9, 2:23 PM EDTFreeze WarningRLX19 hr
Apr 16, 12:44 PM EDTMesoscale DiscussionSPC2 hr
Apr 16, 1:28 PM EDTSevere Thunderstorm WatchSPC7 hr
Apr 16, 4:34 PM EDTMesoscale DiscussionSPC86 min
Apr 16, 4:52 PM EDTSevere Thunderstorm WarningRLX24 min
Apr 16, 6:14 PM EDTMesoscale DiscussionSPC61 min
Apr 17, 3:29 AM EDTFrost AdvisoryRLX30 hr
Apr 18, 2:28 PM EDTFrost AdvisoryRLX19 hr
Apr 24, 6:45 PM EDTMesoscale DiscussionSPC60 min
Apr 25, 11:54 AM EDTSevere Thunderstorm WatchSPC6 hr
Apr 25, 2:26 PM EDTMesoscale DiscussionSPC94 min
Apr 27, 4:22 AM EDTFrost AdvisoryRLX29 hr
Apr 28, 2:51 PM EDTFrost AdvisoryRLX18 hr
Apr 30, 3:56 PM EDTFlash Flood WatchRLX61 hr
May 2, 2:18 PM EDTMesoscale DiscussionSPC57 min
May 2, 4:12 PM EDTAreal Flood WarningRLX2 hr
May 2, 6:17 PM EDTFlash Flood WarningRLX3 hr
May 2, 7:12 PM EDTMesoscale DiscussionSPC93 min
May 2, 8:29 PM EDTAreal Flood WarningRLX9 hr
May 2, 9:19 PM EDTAreal Flood WarningRLX12 hr
May 9, 3:11 AM EDTFrost AdvisoryRLX30 hr
May 12, 9:32 AM EDTFlash Flood WatchRLX13 hr
May 12, 10:16 AM EDTMesoscale DiscussionSPC119 min
May 13, 1:46 PM EDTTornado WatchSPC6 hr
May 13, 4:02 PM EDTMesoscale DiscussionSPC88 min
May 14, 2:29 PM EDTSevere Thunderstorm WatchSPC7 hr
May 14, 4:38 PM EDTSevere Thunderstorm WarningRLX43 min
May 16, 4:45 AM EDTFlash Flood WatchRLX69 hr
Jun 2, 1:09 PM EDTMesoscale DiscussionSPC66 min
Jun 2, 8:10 PM EDTSpecial Weather StatementRLX95 min
Jun 2, 9:49 PM EDTSevere Thunderstorm WarningRLX56 min
Jun 2, 10:00 PM EDTSevere Thunderstorm WarningRLX60 min
Jun 4, 2:42 PM EDTFlash Flood WatchRLX6 hr
Jun 5, 2:08 PM EDTSevere Thunderstorm WatchSPC6 hr
Jun 5, 4:21 PM EDTMesoscale DiscussionSPC54 min
Jun 5, 7:14 PM EDTMesoscale DiscussionSPC61 min
Jun 6, 7:51 AM EDTTornado WatchSPC7 hr
Jun 6, 10:00 AM EDTSpecial Weather StatementRLX60 min
Jun 6, 10:37 AM EDTSpecial Weather StatementRLX68 min
Jun 6, 11:02 AM EDTSpecial Weather StatementRLX73 min
Jun 9, 3:50 AM EDTFlash Flood WatchRLX16 hr
Jun 11, 1:38 PM EDTMesoscale DiscussionSPC2 hr
Jun 11, 3:34 PM EDTSpecial Weather StatementRLX71 min
Jun 12, 9:54 PM EDTFlash Flood WatchRLX4 days
Jun 15, 12:10 AM EDTSevere Thunderstorm WarningRLX65 min
Jun 15, 8:41 PM EDTMesoscale DiscussionSPC64 min
Jun 15, 9:21 PM EDTSevere Thunderstorm WatchSPC4 hr
Jun 15, 11:26 PM EDTSpecial Weather StatementRLX64 min
Jun 15, 11:28 PM EDTMesoscale DiscussionSPC62 min
Jun 16, 1:39 PM EDTMesoscale DiscussionSPC96 min
Jun 24, 11:28 AM EDTMesoscale DiscussionSPC62 min
Jun 24, 11:45 AM EDTSevere Thunderstorm WatchSPC6 hr
Jun 27, 12:52 PM EDTMesoscale DiscussionSPC2 hr
Jun 27, 3:43 PM EDTSpecial Weather StatementRLX47 min
Jun 27, 9:43 PM EDTFlash Flood WatchRLX21 hr
Jul 17, 6:14 AM EDTSpecial Weather StatementRLX46 min
Jul 17, 6:55 AM EDTMesoscale DiscussionSPC95 min
Jul 17, 7:15 AM EDTSpecial Weather StatementRLX60 min
Jul 20, 10:19 AM EDTFlash Flood WatchRLX34 hr
Jul 20, 6:13 PM EDTMesoscale DiscussionSPC92 min
Jul 20, 6:38 PM EDTSpecial Weather StatementRLX52 min
Jul 21, 12:02 AM EDTFlash Flood WarningRLX6 hr
Jul 21, 6:07 AM EDTAreal Flood WarningRLX6 hr
Jul 23, 8:49 AM EDTHeat AdvisoryRLX11 hr
Jul 25, 3:36 AM EDTFlash Flood WatchRLX19 hr
Jul 25, 12:11 PM EDTSpecial Weather StatementRLX49 min
Jul 25, 12:19 PM EDTSevere Thunderstorm WarningRLX56 min
Aug 4, 5:32 AM EDTSpecial Weather StatementRLX58 min
Aug 4, 1:58 PM EDTMesoscale DiscussionSPC62 min
Aug 4, 2:18 PM EDTSevere Thunderstorm WatchSPC7 hr
Aug 4, 3:38 PM EDTSevere Thunderstorm WarningRLX52 min
Aug 4, 3:52 PM EDTMesoscale DiscussionSPC53 min
Aug 4, 5:35 PM EDTSevere Thunderstorm WarningRLX55 min
Aug 4, 9:26 PM EDTMesoscale DiscussionSPC64 min
Aug 4, 10:08 PM EDTSevere Thunderstorm WatchSPC6 hr
Aug 4, 10:15 PM EDTFlash Flood WatchRLX19 hr
Aug 4, 11:52 PM EDTMesoscale DiscussionSPC113 min
Aug 5, 8:51 AM EDTMesoscale DiscussionSPC114 min
Aug 5, 10:38 AM EDTSevere Thunderstorm WatchSPC7 hr
Aug 5, 11:31 AM EDTSevere Thunderstorm WarningRLX89 min
Aug 5, 12:34 PM EDTSevere Thunderstorm WarningRLX71 min
Aug 11, 3:36 AM EDTHeat AdvisoryRLX15 hr
Aug 11, 12:39 PM EDTMesoscale DiscussionSPC2 hr
Aug 11, 2:20 PM EDTFlash Flood WarningRLX3 hr
Aug 11, 4:35 PM EDTSpecial Weather StatementRLX3 hr
Aug 12, 3:35 AM EDTHeat AdvisoryRLX15 hr
Aug 14, 1:15 PM EDTMesoscale DiscussionSPC2 hr
Aug 14, 4:23 PM EDTSevere Thunderstorm WatchSPC8 hr
Aug 14, 6:01 PM EDTFlash Flood WatchRLX10 hr
Aug 14, 7:04 PM EDTMesoscale DiscussionSPC86 min
Aug 21, 2:43 PM EDTSpecial Weather StatementRLX77 min
Sep 16, 4:29 PM EDTMesoscale DiscussionSPC91 min
Oct 16, 3:35 AM EDTFrost AdvisoryRLX29 hr
Oct 19, 2:45 PM EDTFrost AdvisoryRLX18 hr
Oct 21, 2:56 PM EDTFrost AdvisoryRLX18 hr
Oct 22, 2:39 PM EDTFrost AdvisoryRLX18 hr
Oct 26, 3:42 AM EDTWind AdvisoryRLX16 hr
Oct 26, 1:09 PM EDTMesoscale DiscussionSPC66 min
Oct 26, 1:36 PM EDTTornado WatchSPC7 hr
Oct 26, 3:12 PM EDTSevere Thunderstorm WarningRLX48 min
Oct 26, 3:35 PM EDTSevere Thunderstorm WarningRLX25 min
Oct 26, 4:02 PM EDTSevere Thunderstorm WarningRLX43 min
Oct 26, 5:45 PM EDTMesoscale DiscussionSPC90 min
Nov 16, 1:52 PM ESTWind AdvisoryRLX25 hr
Nov 16, 3:42 PM ESTSpecial Weather StatementRLX63 min
Dec 3, 2:07 PM ESTWinter Weather AdvisoryRLX38 hr
Dec 11, 4:05 PM ESTWinter Weather AdvisoryRLX54 hr
Dec 14, 3:40 PM ESTWinter Weather AdvisoryRLX50 hr
Dec 15, 4:32 PM ESTWinter Storm WarningRLX25 hr
Dec 16, 4:17 AM ESTMesoscale DiscussionSPC6 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.