Alert archive / Illinois / McDonough County

Weather alerts in McDonough County, Illinois, 2022

114 weather alerts in 2022, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

McDonough County and its neighbors

Each county as a circle sized by its count in 2022. Tap one for its archive.

Alerts
114
Warnings
27
Watches
11
Advisories
34
Busiest month
May20 alerts
Busiest day
June 1, 20226 alerts

Over time

By month

Warning verification

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

3 of 3 tornado warnings covering McDonough County in 2022 had a tornado report inside them; 2 of 3 tornado reports fell inside a warning, on average 15 minutes after it went out.

McDonough County, 2022

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings330%367%15 min
Severe thunderstorm warnings9367%967%18 min
Flash flood warnings20100%0

Each office's whole area, 2022

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Quad Cities, IA: tornado warnings301163%1974%16 min
NWS Quad Cities, IA: severe thunderstorm warnings1759148%23578%19 min
NWS Quad Cities, IA: flash flood warnings261350%2677%99 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, Central Time. Each opens its own page with the text, the map, the radar and the sounding.

IssuedProductOfficeLasted
Jan 4, 3:08 AM CSTWinter Weather AdvisoryDVN39 hr
Jan 6, 2:02 AM CSTWind Chill AdvisoryDVN31 hr
Jan 7, 2:05 PM CSTWinter Weather AdvisoryDVN34 hr
Jan 13, 2:47 PM CSTWinter Weather AdvisoryDVN44 hr
Jan 19, 2:13 AM CSTWind Chill AdvisoryDVN34 hr
Jan 25, 3:27 AM CSTWind Chill AdvisoryDVN30 hr
Jan 31, 2:51 AM CSTWinter Storm WatchDVN24 hr
Jan 31, 2:43 PM CSTWinter Storm WarningDVN51 hr
Feb 2, 1:13 AM CSTMesoscale DiscussionSPC6 hr
Feb 15, 3:06 PM CSTWinter Storm WatchDVN12 hr
Feb 16, 3:30 AM CSTWinter Storm WarningDVN39 hr
Feb 17, 10:17 AM CSTMesoscale DiscussionSPC5 hr
Feb 17, 3:17 PM CSTMesoscale DiscussionSPC118 min
Feb 22, 8:52 AM CSTSpecial Weather StatementDVN23 min
Feb 22, 9:20 AM CSTSpecial Weather StatementDVN40 min
Feb 23, 2:55 PM CSTWinter Weather AdvisoryDVN36 hr
Mar 5, 3:27 AM CSTWind AdvisoryDVN27 hr
Mar 5, 6:10 PM CSTTornado WatchSPC4 hr
Mar 5, 7:51 PM CSTMesoscale DiscussionSPC114 min
Mar 6, 3:05 PM CSTWinter Weather AdvisoryDVN21 hr
Mar 9, 2:38 PM CSTWinter Weather AdvisoryDVN39 hr
Mar 25, 3:10 AM CDTWind AdvisoryDVN19 hr
Apr 13, 5:47 AM CDTSpecial Weather StatementDVN58 min
Apr 13, 2:26 PM CDTWind AdvisoryDVN29 hr
Apr 25, 3:02 AM CDTFreeze WarningDVN29 hr
Apr 26, 2:39 PM CDTFrost AdvisoryDVN17 hr
May 11, 10:08 AM CDTHeat AdvisoryDVN11 hr
May 12, 2:48 AM CDTHeat AdvisoryDVN17 hr
May 13, 4:30 PM CDTSpecial Weather StatementDVN30 min
May 13, 4:50 PM CDTTornado Warning Tornado observedDVN25 min
May 13, 5:19 PM CDTSpecial Weather StatementDVN41 min
May 13, 5:22 PM CDTMesoscale DiscussionSPC2 hr
May 13, 5:40 PM CDTSevere Thunderstorm WarningDVN50 min
May 20, 6:34 AM CDTSpecial Weather StatementDVN41 min
May 20, 7:10 PM CDTMesoscale DiscussionSPC2 hr
May 20, 9:50 PM CDTSpecial Weather StatementDVN25 min
May 25, 6:32 PM CDTSevere Thunderstorm WarningDVN43 min
May 25, 6:46 PM CDTMesoscale DiscussionSPC119 min
May 25, 6:57 PM CDTSevere Thunderstorm WarningDVN34 min
May 26, 7:36 AM CDTSpecial Weather StatementDVN24 min
May 26, 8:16 AM CDTSpecial Weather StatementDVN29 min
May 26, 9:52 AM CDTMesoscale DiscussionSPC83 min
May 26, 11:29 AM CDTSpecial Weather StatementDVN31 min
May 26, 12:54 PM CDTFlash Flood WarningDVN3 hr
May 31, 3:40 PM CDTMesoscale DiscussionSPC2 hr
May 31, 6:22 PM CDTMesoscale DiscussionSPC83 min
May 31, 9:37 PM CDTSpecial Weather StatementDVN38 min
May 31, 10:00 PM CDTTornado WarningDVN30 min
May 31, 10:25 PM CDTTornado WarningDVN50 min
May 31, 11:32 PM CDTFlash Flood WarningDVN5 hr
Jun 1, 2:29 AM CDTRiver Flood WarningDVN36 hr
Jun 1, 4:43 AM CDTAreal Flood WarningDVN7 hr
Jun 6, 3:45 PM CDTMesoscale DiscussionSPC2 hr
Jun 12, 2:40 PM CDTHeat AdvisoryDVN3 days
Jun 14, 2:58 AM CDTExcessive Heat WarningDVN41 hr
Jun 15, 6:21 PM CDTSevere Thunderstorm WatchSPC6 hr
Jun 15, 7:53 PM CDTMesoscale DiscussionSPC97 min
Jun 20, 2:16 PM CDTHeat AdvisoryDVN29 hr
Jun 21, 11:14 PM CDTSpecial Weather StatementDVN31 min
Jun 21, 11:39 PM CDTSpecial Weather StatementDVN36 min
Jun 25, 2:17 PM CDTMesoscale DiscussionSPC118 min
Jun 25, 5:02 PM CDTSevere Thunderstorm WatchSPC7 hr
Jun 25, 7:16 PM CDTMesoscale DiscussionSPC89 min
Jul 3, 2:32 PM CDTHeat AdvisoryDVN47 hr
Jul 5, 1:09 PM CDTExcessive Heat WarningDVN7 hr
Jul 5, 10:31 PM CDTSevere Thunderstorm WarningDVN59 min
Jul 6, 8:02 PM CDTFlood WatchDVN33 hr
Jul 8, 2:46 AM CDTSpecial Weather StatementDVN29 min
Jul 8, 3:22 PM CDTSpecial Weather StatementDVN113 min
Jul 22, 3:26 AM CDTHeat AdvisoryDVN41 hr
Jul 25, 2:49 AM CDTFlood WatchDVN24 hr
Aug 1, 4:28 AM CDTSpecial Weather StatementDVN47 min
Aug 1, 5:01 AM CDTSevere Thunderstorm WarningDVN44 min
Aug 2, 2:44 AM CDTHeat AdvisoryDVN17 hr
Aug 2, 7:20 AM CDTSpecial Weather StatementDVN55 min
Aug 5, 2:46 AM CDTHeat AdvisoryDVN42 hr
Aug 6, 12:22 PM CDTExcessive Heat WarningDVN9 hr
Aug 19, 11:36 PM CDTSpecial Weather StatementDVN24 min
Aug 20, 12:51 PM CDTMesoscale DiscussionSPC2 hr
Aug 21, 1:27 AM CDTDense Fog AdvisoryDVN7 hr
Aug 29, 4:20 PM CDTSevere Thunderstorm WarningDVN40 min
Aug 29, 4:23 PM CDTMesoscale DiscussionSPC2 hr
Aug 29, 4:40 PM CDTSevere Thunderstorm WatchSPC5 hr
Aug 29, 4:49 PM CDTSevere Thunderstorm WarningDVN41 min
Aug 29, 5:04 PM CDTSevere Thunderstorm WarningDVN41 min
Aug 29, 6:41 PM CDTMesoscale DiscussionSPC2 hr
Sep 6, 2:31 AM CDTDense Fog AdvisoryDVN6 hr
Sep 18, 6:11 PM CDTTornado WatchSPC6 hr
Sep 18, 8:41 PM CDTMesoscale DiscussionSPC3 hr
Sep 18, 11:28 PM CDTMesoscale DiscussionSPC2 hr
Sep 19, 1:58 AM CDTMesoscale DiscussionSPC92 min
Sep 19, 2:23 AM CDTSevere Thunderstorm WarningDVN52 min
Sep 21, 11:25 AM CDTSpecial Weather StatementDVN35 min
Sep 24, 3:02 AM CDTDense Fog AdvisoryDVN7 hr
Sep 27, 1:53 PM CDTFrost AdvisoryDVN18 hr
Oct 6, 2:32 PM CDTFreeze WatchDVN12 hr
Oct 6, 3:45 PM CDTSpecial Weather StatementDVN30 min
Oct 7, 2:19 AM CDTFreeze WarningDVN31 hr
Oct 13, 2:52 AM CDTRed Flag WarningDVN16 hr
Oct 22, 10:31 AM CDTRed Flag WarningDVN8 hr
Nov 4, 2:51 AM CDTWind AdvisoryDVN40 hr
Nov 4, 2:05 PM CDTMesoscale DiscussionSPC115 min
Nov 14, 2:24 PM CSTWinter Weather AdvisoryDVN30 hr
Dec 2, 2:52 AM CSTWind AdvisoryDVN26 hr
Dec 7, 3:36 AM CSTDense Fog AdvisoryDVN8 hr
Dec 7, 10:06 PM CSTDense Fog AdvisoryDVN8 hr
Dec 12, 2:25 PM CSTWind AdvisoryDVN31 hr
Dec 19, 2:42 PM CSTWinter Storm WatchDVN37 hr
Dec 20, 2:34 PM CSTWinter Storm WarningDVN4 days
Dec 22, 10:59 AM CSTMesoscale DiscussionSPC4 hr
Dec 23, 2:32 PM CSTWind Chill WarningDVN13 hr
Dec 24, 3:10 AM CSTWind Chill AdvisoryDVN7 hr
Dec 24, 2:01 PM CSTWind Chill AdvisoryDVN20 hr
Dec 25, 12:16 PM CSTWinter Weather AdvisoryDVN24 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 archive20212023

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.