Alert archive / Ohio / Cuyahoga County

Weather alerts in Cuyahoga County, Ohio, 2020

161 weather alerts in 2020, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Cuyahoga County and its neighbors

Each county as a circle sized by its count in 2020. Tap one for its archive.

Alerts
161
Warnings
43
Watches
12
Advisories
33
Busiest month
July23 alerts
Busiest day
August 28, 20209 alerts

Over time

By month

Warning verification

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

Cuyahoga County, 2020

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings211814%2882%26 min
Flash flood warnings9367%8100%86 min

Each office's whole area, 2020

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Cleveland, OH: tornado warnings8275%3100%15 min
NWS Cleveland, OH: severe thunderstorm warnings15711328%38487%24 min
NWS Cleveland, OH: flash flood warnings22673%1587%68 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, 1:33 AM ESTSpecial Weather StatementCLE87 min
Jan 8, 3:14 AM ESTSpecial Weather StatementCLE91 min
Jan 8, 6:10 AM ESTSpecial Weather StatementCLE80 min
Jan 10, 3:23 PM ESTWind AdvisoryCLE37 hr
Jan 11, 2:06 PM ESTHigh Wind WarningCLE19 hr
Jan 12, 1:06 AM ESTSpecial Weather StatementCLE24 min
Jan 17, 3:18 AM ESTWinter Weather AdvisoryCLE36 hr
Jan 18, 3:50 AM ESTWind AdvisoryCLE29 hr
Jan 18, 3:34 PM ESTLake Effect Snow WarningCLE42 hr
Jan 18, 3:34 PM ESTWinter Weather AdvisoryCLE32 hr
Feb 5, 3:42 AM ESTWinter Weather AdvisoryCLE33 hr
Feb 6, 2:59 PM ESTWinter Weather AdvisoryCLE37 hr
Feb 7, 10:45 PM ESTSpecial Weather StatementCLE60 min
Feb 7, 11:42 PM ESTSpecial Weather StatementCLE78 min
Feb 8, 4:37 PM ESTSpecial Weather StatementCLE53 min
Feb 11, 3:37 PM ESTWinter Weather AdvisoryCLE42 hr
Feb 13, 3:44 PM ESTSpecial Weather StatementCLE31 min
Feb 13, 4:17 PM ESTSpecial Weather StatementCLE58 min
Feb 25, 2:41 PM ESTWinter Storm WatchCLE23 hr
Feb 26, 1:40 PM ESTLake Effect Snow WarningCLE3 days
Feb 26, 10:39 PM ESTSpecial Weather StatementCLE96 min
Feb 27, 12:51 AM ESTSpecial Weather StatementCLE114 min
Feb 27, 5:09 PM ESTSpecial Weather StatementCLE51 min
Mar 3, 6:19 PM ESTSpecial Weather StatementCLE41 min
Mar 27, 12:07 PM EDTFlash Flood WatchCLE41 hr
Mar 28, 10:32 AM EDTMesoscale DiscussionSPC88 min
Mar 28, 11:46 AM EDTSevere Thunderstorm WarningCLE44 min
Mar 28, 12:12 PM EDTSevere Thunderstorm WarningCLE33 min
Mar 28, 3:55 PM EDTWind AdvisoryCLE28 hr
Mar 29, 1:29 AM EDTAreal Flood AdvisoryCLE4 hr
Mar 29, 1:58 AM EDTFlash Flood WarningCLE6 hr
Mar 29, 3:44 AM EDTRiver Flood WarningCLE21 hr
Mar 29, 6:54 AM EDTFlash Flood WarningCLE5 hr
Mar 29, 11:54 AM EDTAreal Flood AdvisoryCLE4 hr
Apr 7, 9:07 PM EDTSevere Thunderstorm WatchSPC6 hr
Apr 7, 10:04 PM EDTMesoscale DiscussionSPC86 min
Apr 7, 10:49 PM EDTSpecial Weather StatementCLE41 min
Apr 7, 10:57 PM EDTSevere Thunderstorm WarningCLE63 min
Apr 7, 11:01 PM EDTSevere Thunderstorm WarningCLE44 min
Apr 7, 11:12 PM EDTSevere Thunderstorm WarningCLE63 min
Apr 7, 11:38 PM EDTSevere Thunderstorm WarningCLE67 min
Apr 8, 12:08 PM EDTSpecial Weather StatementCLE112 min
Apr 9, 2:13 PM EDTSpecial Weather StatementCLE47 min
Apr 11, 3:18 PM EDTHigh Wind WatchCLE23 hr
Apr 12, 2:10 PM EDTHigh Wind WarningCLE28 hr
Apr 13, 6:03 PM EDTWind AdvisoryCLE3 hr
Apr 21, 2:47 AM EDTSpecial Weather StatementCLE43 min
May 7, 2:33 PM EDTFreeze WarningCLE43 hr
May 10, 12:20 PM EDTMesoscale DiscussionSPC2 hr
May 10, 5:43 PM EDTSpecial Weather StatementCLE32 min
May 10, 6:36 PM EDTMesoscale DiscussionSPC24 min
May 11, 3:50 AM EDTFrost AdvisoryCLE28 hr
May 11, 12:41 PM EDTFreeze WarningCLE20 hr
May 12, 12:22 PM EDTFrost AdvisoryCLE21 hr
May 14, 4:29 PM EDTMesoscale DiscussionSPC2 hr
May 14, 5:37 PM EDTSevere Thunderstorm WarningCLE68 min
May 14, 6:41 PM EDTSpecial Weather StatementCLE49 min
May 15, 4:31 PM EDTSpecial Weather StatementCLE89 min
May 15, 4:51 PM EDTAreal Flood AdvisoryCLE3 hr
May 15, 5:13 PM EDTFlash Flood WarningCLE5 hr
May 15, 8:05 PM EDTRiver Flood WarningCLE9 hr
May 15, 11:05 PM EDTDense Fog AdvisoryCLE11 hr
May 17, 2:38 PM EDTFlood WatchCLE45 hr
May 17, 7:10 PM EDTSpecial Weather StatementCLE35 min
Jun 10, 1:58 PM EDTMesoscale DiscussionSPC92 min
Jun 10, 2:48 PM EDTSevere Thunderstorm WatchSPC6 hr
Jun 10, 6:35 PM EDTMesoscale DiscussionSPC85 min
Jun 10, 7:23 PM EDTSevere Thunderstorm WarningCLE67 min
Jun 10, 7:55 PM EDTSevere Thunderstorm WarningCLE65 min
Jun 11, 4:47 AM EDTBeach Hazards StatementCLE15 hr
Jun 14, 4:04 AM EDTBeach Hazards StatementCLE36 hr
Jun 18, 7:48 PM EDTSpecial Weather StatementCLE42 min
Jun 18, 8:25 PM EDTSpecial Weather StatementCLE50 min
Jun 18, 8:27 PM EDTSpecial Weather StatementCLE48 min
Jun 23, 4:06 AM EDTBeach Hazards StatementCLE30 hr
Jun 26, 3:44 PM EDTBeach Hazards StatementCLE20 hr
Jun 26, 11:15 PM EDTSevere Thunderstorm WatchSPC5 hr
Jun 26, 11:23 PM EDTSevere Thunderstorm WarningCLE67 min
Jun 27, 12:23 AM EDTSevere Thunderstorm WarningCLE34 min
Jun 27, 12:35 AM EDTMesoscale DiscussionSPC115 min
Jun 27, 2:48 AM EDTMesoscale DiscussionSPC57 min
Jul 7, 1:32 PM EDTSpecial Weather StatementCLE43 min
Jul 7, 1:59 PM EDTFlash Flood WarningCLE3 hr
Jul 8, 3:22 PM EDTHeat AdvisoryCLE30 hr
Jul 8, 4:42 PM EDTSpecial Weather StatementCLE48 min
Jul 10, 11:54 AM EDTSpecial Weather StatementCLE36 min
Jul 10, 12:33 PM EDTMesoscale DiscussionSPC87 min
Jul 10, 4:11 PM EDTMesoscale DiscussionSPC94 min
Jul 10, 4:47 PM EDTSpecial Weather StatementCLE28 min
Jul 10, 9:58 PM EDTBeach Hazards StatementCLE24 hr
Jul 11, 2:48 AM EDTAreal Flood AdvisoryCLE3 hr
Jul 11, 6:53 AM EDTAreal Flood AdvisoryCLE4 hr
Jul 16, 12:18 PM EDTMesoscale DiscussionSPC117 min
Jul 16, 1:20 PM EDTSevere Thunderstorm WatchSPC8 hr
Jul 18, 2:52 PM EDTHeat AdvisoryCLE29 hr
Jul 19, 3:36 PM EDTMesoscale DiscussionSPC114 min
Jul 19, 4:16 PM EDTSevere Thunderstorm WatchSPC4 hr
Jul 19, 5:18 PM EDTSevere Thunderstorm WarningCLE57 min
Jul 23, 1:26 PM EDTAreal Flood AdvisoryCLE3 hr
Jul 27, 3:24 PM EDTSpecial Weather StatementCLE51 min
Jul 27, 3:55 PM EDTSevere Thunderstorm WarningCLE50 min
Jul 27, 4:39 PM EDTAreal Flood AdvisoryCLE3 hr
Jul 29, 1:36 PM EDTMesoscale DiscussionSPC84 min
Jul 30, 3:40 PM EDTBeach Hazards StatementCLE18 hr
Aug 1, 3:38 PM EDTBeach Hazards StatementCLE36 hr
Aug 1, 8:49 PM EDTAreal Flood AdvisoryCLE3 hr
Aug 3, 3:17 PM EDTAreal Flood AdvisoryCLE3 hr
Aug 13, 1:13 PM EDTBeach Hazards StatementCLE15 hr
Aug 14, 10:21 AM EDTBeach Hazards StatementCLE15 hr
Aug 26, 3:39 PM EDTBeach Hazards StatementCLE30 hr
Aug 28, 7:34 AM EDTSpecial Weather StatementCLE41 min
Aug 28, 9:02 AM EDTSpecial Weather StatementCLE43 min
Aug 28, 9:40 AM EDTAreal Flood AdvisoryCLE3 hr
Aug 28, 10:49 AM EDTFlash Flood WarningCLE4 hr
Aug 28, 1:32 PM EDTMesoscale DiscussionSPC88 min
Aug 28, 3:10 PM EDTSpecial Weather StatementCLE65 min
Aug 28, 3:26 PM EDTSevere Thunderstorm WarningCLE64 min
Aug 28, 3:55 PM EDTAreal Flood AdvisoryCLE6 hr
Aug 28, 4:35 PM EDTFlash Flood WarningCLE7 hr
Aug 29, 4:35 AM EDTBeach Hazards StatementCLE29 hr
Sep 3, 4:23 AM EDTBeach Hazards StatementCLE61 hr
Sep 7, 6:57 AM EDTSpecial Weather StatementCLE33 min
Sep 7, 7:52 AM EDTSpecial Weather StatementCLE83 min
Sep 7, 7:58 AM EDTAreal Flood AdvisoryCLE4 hr
Sep 7, 8:26 AM EDTFlash Flood WarningCLE6 hr
Sep 7, 11:33 AM EDTRiver Flood WarningCLE17 hr
Sep 7, 1:59 PM EDTFlash Flood Warning Considerable damage threatCLE4 hr
Sep 10, 3:15 AM EDTDense Fog AdvisoryCLE7 hr
Sep 10, 9:27 PM EDTBeach Hazards StatementCLE29 hr
Sep 13, 10:16 AM EDTBeach Hazards StatementCLE27 hr
Sep 16, 3:59 PM EDTBeach Hazards StatementCLE60 hr
Sep 28, 9:32 AM EDTBeach Hazards StatementCLE25 hr
Sep 28, 5:57 PM EDTSpecial Weather StatementCLE48 min
Sep 30, 5:10 AM EDTBeach Hazards StatementCLE41 hr
Oct 1, 1:47 PM EDTSpecial Weather StatementCLE43 min
Oct 16, 3:03 PM EDTFrost AdvisoryCLE18 hr
Oct 21, 3:27 AM EDTAreal Flood AdvisoryCLE4 hr
Oct 21, 5:11 AM EDTFlash Flood WarningCLE4 hr
Oct 23, 6:10 PM EDTSevere Thunderstorm WarningCLE35 min
Oct 23, 6:19 PM EDTSevere Thunderstorm WarningCLE26 min
Oct 23, 6:44 PM EDTSevere Thunderstorm WarningCLE15 min
Oct 23, 7:05 PM EDTSevere Thunderstorm WarningCLE40 min
Oct 23, 7:40 PM EDTSevere Thunderstorm WarningCLE32 min
Nov 1, 3:53 AM ESTWind AdvisoryCLE24 hr
Nov 14, 3:26 AM ESTWind AdvisoryCLE40 hr
Nov 15, 3:31 AM ESTHigh Wind WarningCLE19 hr
Nov 15, 9:58 AM ESTMesoscale DiscussionSPC92 min
Nov 15, 11:33 AM ESTMesoscale DiscussionSPC57 min
Nov 15, 11:51 AM ESTSevere Thunderstorm WatchSPC3 hr
Nov 15, 12:19 PM ESTSevere Thunderstorm WarningCLE54 min
Nov 15, 12:27 PM ESTMesoscale DiscussionSPC93 min
Nov 15, 12:51 PM ESTSevere Thunderstorm WarningCLE69 min
Nov 15, 10:55 PM ESTWind AdvisoryCLE5 hr
Nov 18, 2:11 PM ESTWind AdvisoryCLE27 hr
Nov 19, 1:41 PM ESTRed Flag WarningCLE5 hr
Nov 29, 3:18 PM ESTWinter Storm WatchCLE12 hr
Nov 30, 2:51 AM ESTWinter Storm WarningCLE52 hr
Dec 1, 5:47 PM ESTSpecial Weather StatementCLE73 min
Dec 22, 2:38 PM ESTWinter Storm WatchCLE24 hr
Dec 23, 2:54 PM ESTWinter Storm WarningCLE61 hr
Dec 29, 6:32 AM ESTSpecial Weather StatementCLE88 min

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 archive20192021

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.