Alert archive / Ohio / Miami County

Weather alerts in Miami County, Ohio, 2018

124 weather alerts in 2018, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Miami County and its neighbors

Each county as a circle sized by its count in 2018. Tap one for its archive.

Alerts
124
Warnings
20
Watches
13
Advisories
35
Busiest month
May21 alerts
Busiest day
April 3, 201813 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 1 tornado reports fell inside a warning.

Miami County, 2018

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings010%
Severe thunderstorm warnings11645%3100%15 min
Flash flood warnings110%0

Each office's whole area, 2018

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Wilmington, OH: tornado warnings18572%1080%8 min
NWS Wilmington, OH: severe thunderstorm warnings1579639%36152%16 min
NWS Wilmington, OH: flash flood warnings392341%6685%65 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 2, 2:33 PM ESTWind Chill AdvisoryILN19 hr
Jan 3, 2:36 PM ESTWind Chill AdvisoryILN17 hr
Jan 4, 7:48 AM ESTWind Chill AdvisoryILN51 hr
Jan 6, 3:47 PM ESTWind Chill AdvisoryILN18 hr
Jan 7, 3:57 AM ESTWinter Weather AdvisoryILN34 hr
Jan 8, 1:00 AM ESTMesoscale DiscussionSPC6 hr
Jan 10, 5:55 AM ESTWinter Weather AdvisoryILN3 hr
Jan 11, 4:11 AM ESTWinter Storm WatchILN11 hr
Jan 11, 3:23 PM ESTWinter Weather AdvisoryILN38 hr
Jan 12, 8:51 AM ESTMesoscale DiscussionSPC5 hr
Jan 12, 2:58 PM ESTMesoscale DiscussionSPC4 hr
Jan 14, 3:28 PM ESTWinter Weather AdvisoryILN48 hr
Jan 15, 4:07 AM ESTWind Chill AdvisoryILN32 hr
Jan 22, 8:51 PM ESTSpecial Weather StatementILN24 min
Jan 22, 8:59 PM ESTSevere Thunderstorm WarningILN18 min
Jan 27, 11:00 PM ESTDense Fog AdvisoryILN12 hr
Feb 4, 7:24 PM ESTWinter Weather AdvisoryILN5 hr
Feb 6, 3:07 AM ESTWinter Weather AdvisoryILN34 hr
Feb 10, 3:34 PM ESTWinter Weather AdvisoryILN24 hr
Feb 15, 3:44 AM ESTFlood WatchILN34 hr
Feb 15, 6:51 PM ESTMesoscale DiscussionSPC2 hr
Feb 21, 2:49 PM ESTFlood WatchILN4 days
Mar 1, 1:58 PM ESTSevere Thunderstorm WarningILN32 min
Mar 8, 1:13 AM ESTSpecial Weather StatementILN47 min
Mar 8, 6:54 AM ESTSpecial Weather StatementILN51 min
Mar 8, 7:43 AM ESTSpecial Weather StatementILN32 min
Mar 13, 5:11 PM EDTSpecial Weather StatementILN34 min
Mar 13, 6:39 PM EDTSpecial Weather StatementILN36 min
Mar 16, 4:03 AM EDTWinter Weather AdvisoryILN30 hr
Mar 17, 4:59 AM EDTMesoscale DiscussionSPC4 hr
Mar 19, 3:37 PM EDTWinter Weather AdvisoryILN46 hr
Mar 28, 8:40 PM EDTDense Fog AdvisoryILN10 hr
Apr 2, 9:02 PM EDTFlash Flood WatchILN29 hr
Apr 3, 5:27 AM EDTAreal Flood AdvisoryILN3 hr
Apr 3, 11:55 AM EDTAreal Flood AdvisoryILN3 hr
Apr 3, 12:41 PM EDTMesoscale DiscussionSPC3 hr
Apr 3, 1:16 PM EDTTornado WatchSPC6 hr
Apr 3, 2:57 PM EDTRiver Flood WarningILN36 hr
Apr 3, 2:57 PM EDTRiver Flood WarningILN50 hr
Apr 3, 3:38 PM EDTSpecial Weather StatementILN37 min
Apr 3, 3:54 PM EDTFlash Flood WarningILN3 hr
Apr 3, 4:18 PM EDTMesoscale DiscussionSPC117 min
Apr 3, 4:19 PM EDTSevere Thunderstorm WarningILN26 min
Apr 3, 6:44 PM EDTAreal Flood WarningILN12 hr
Apr 3, 7:30 PM EDTTornado WatchSPC5 hr
Apr 4, 3:42 AM EDTWind AdvisoryILN9 hr
Apr 11, 8:00 PM EDTWind AdvisoryILN22 hr
Apr 15, 10:20 AM EDTSpecial Weather StatementILN40 min
Apr 15, 10:59 AM EDTSpecial Weather StatementILN46 min
Apr 28, 3:38 AM EDTFreeze WarningILN29 hr
Apr 29, 9:38 AM EDTFrost AdvisoryILN23 hr
Apr 30, 8:22 PM EDTFire Weather WatchILN14 hr
May 1, 10:08 AM EDTRed Flag WarningILN10 hr
May 3, 10:48 AM EDTSpecial Weather StatementILN42 min
May 4, 2:53 PM EDTSevere Thunderstorm WarningILN37 min
May 12, 4:20 PM EDTMesoscale DiscussionSPC115 min
May 15, 4:40 PM EDTSpecial Weather StatementILN35 min
May 15, 4:50 PM EDTSevere Thunderstorm WarningILN25 min
May 21, 4:15 PM EDTMesoscale DiscussionSPC60 min
May 21, 4:59 PM EDTSevere Thunderstorm WatchSPC6 hr
May 21, 7:25 PM EDTSpecial Weather StatementILN50 min
May 21, 8:03 PM EDTMesoscale DiscussionSPC117 min
May 22, 12:57 PM EDTMesoscale DiscussionSPC3 hr
May 22, 1:42 PM EDTSevere Thunderstorm WatchSPC7 hr
May 22, 3:48 PM EDTMesoscale DiscussionSPC117 min
May 30, 3:38 PM EDTSevere Thunderstorm WarningILN20 min
May 30, 3:40 PM EDTSpecial Weather StatementILN50 min
May 30, 4:35 PM EDTMesoscale DiscussionSPC115 min
May 30, 8:55 PM EDTSpecial Weather StatementILN50 min
May 31, 2:30 PM EDTSevere Thunderstorm WatchSPC3 hr
May 31, 4:44 PM EDTMesoscale DiscussionSPC91 min
May 31, 4:57 PM EDTSevere Thunderstorm WarningILN33 min
Jun 8, 5:39 PM EDTSpecial Weather StatementILN36 min
Jun 8, 6:09 PM EDTSevere Thunderstorm WarningILN15 min
Jun 8, 6:39 PM EDTSpecial Weather StatementILN36 min
Jun 9, 4:13 PM EDTSevere Thunderstorm WarningILN47 min
Jun 9, 4:50 PM EDTSevere Thunderstorm WarningILN23 min
Jun 13, 3:28 PM EDTSpecial Weather StatementILN62 min
Jun 13, 4:14 PM EDTMesoscale DiscussionSPC2 hr
Jun 16, 4:52 PM EDTMesoscale DiscussionSPC53 min
Jun 18, 3:04 AM EDTHeat AdvisoryILN16 hr
Jun 19, 1:37 PM EDTMesoscale DiscussionSPC113 min
Jun 21, 12:15 PM EDTFlash Flood WatchILN12 hr
Jun 22, 11:02 AM EDTFlash Flood WatchILN12 hr
Jun 26, 1:10 PM EDTSpecial Weather StatementILN35 min
Jun 26, 1:18 PM EDTMesoscale DiscussionSPC87 min
Jul 1, 4:58 PM EDTSpecial Weather StatementILN32 min
Jul 3, 4:05 AM EDTHeat AdvisoryILN62 hr
Jul 3, 5:06 PM EDTSpecial Weather StatementILN24 min
Jul 3, 5:31 PM EDTSpecial Weather StatementILN29 min
Jul 31, 4:01 PM EDTMesoscale DiscussionSPC2 hr
Aug 2, 7:31 AM EDTDense Fog AdvisoryILN89 min
Aug 8, 6:08 PM EDTSpecial Weather StatementILN37 min
Aug 10, 5:48 PM EDTMesoscale DiscussionSPC117 min
Aug 10, 10:18 PM EDTSpecial Weather StatementILN27 min
Aug 12, 2:26 PM EDTSpecial Weather StatementILN34 min
Aug 25, 5:20 PM EDTSpecial Weather StatementILN25 min
Sep 1, 4:16 PM EDTSpecial Weather StatementILN29 min
Sep 4, 7:22 PM EDTSpecial Weather StatementILN8 min
Sep 5, 2:57 PM EDTSpecial Weather StatementILN33 min
Sep 5, 3:30 PM EDTSpecial Weather StatementILN30 min
Sep 5, 3:40 PM EDTSevere Thunderstorm WarningILN22 min
Sep 7, 3:38 AM EDTFlash Flood WatchILN68 hr
Sep 8, 3:50 AM EDTAreal Flood AdvisoryILN7 hr
Sep 8, 4:44 AM EDTAreal Flood AdvisoryILN8 hr
Sep 14, 1:12 AM EDTDense Fog AdvisoryILN10 hr
Sep 15, 6:12 AM EDTDense Fog AdvisoryILN4 hr
Oct 2, 2:55 PM EDTMesoscale DiscussionSPC2 hr
Oct 2, 3:54 PM EDTSpecial Weather StatementILN36 min
Oct 2, 4:26 PM EDTSpecial Weather StatementILN34 min
Oct 6, 2:04 PM EDTSpecial Weather StatementILN26 min
Oct 6, 3:26 PM EDTSpecial Weather StatementILN34 min
Oct 15, 3:14 AM EDTFrost AdvisoryILN30 hr
Oct 15, 9:20 AM EDTFreeze WarningILN24 hr
Oct 17, 3:20 AM EDTFreeze WarningILN31 hr
Oct 20, 4:01 AM EDTWind AdvisoryILN20 hr
Oct 28, 3:49 PM EDTMesoscale DiscussionSPC116 min
Nov 14, 3:55 AM ESTWinter Weather AdvisoryILN31 hr
Nov 15, 1:11 AM ESTMesoscale DiscussionSPC6 hr
Nov 15, 1:24 AM ESTIce Storm WarningILN10 hr
Nov 30, 3:38 AM ESTDense Fog AdvisoryILN8 hr
Dec 20, 9:10 PM ESTAreal Flood AdvisoryILN3 hr
Dec 27, 3:10 PM ESTWind AdvisoryILN9 hr
Dec 31, 3:52 AM ESTWind AdvisoryILN22 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 archive20172019

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.