Alert archive / Illinois / Adams County

Weather alerts in Adams County, Illinois, 2024

102 weather alerts in 2024, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Adams County and its neighbors

Each county as a circle sized by its count in 2024. Tap one for its archive.

Alerts
102
Warnings
29
Watches
16
Advisories
28
Busiest month
July22 alerts
Busiest day
July 31, 20247 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.

Adams County, 2024

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings010%
Severe thunderstorm warnings17853%1989%18 min
Flash flood warnings00

Each office's whole area, 2024

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS St. Louis, MO: tornado warnings802569%5756%14 min
NWS St. Louis, MO: severe thunderstorm warnings37817853%98564%24 min
NWS St. Louis, MO: flash flood warnings593246%12385%86 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 7, 3:06 AM CSTWinter Storm WatchLSX24 hr
Jan 8, 2:41 AM CSTWinter Storm WarningLSX40 hr
Jan 11, 3:06 AM CSTWinter Weather AdvisoryLSX45 hr
Jan 11, 12:56 PM CSTWind AdvisoryLSX38 hr
Jan 12, 2:57 AM CSTWind Chill WarningLSX4 days
Jan 12, 2:07 PM CSTWind Chill AdvisoryLSX5 days
Jan 18, 2:48 AM CSTWind Chill AdvisoryLSX57 hr
Jan 18, 1:32 PM CSTWind Chill WarningLSX46 hr
Jan 20, 11:53 AM CSTWind Chill AdvisoryLSX18 hr
Jan 21, 1:53 AM CSTWinter Weather AdvisoryLSX43 hr
Jan 22, 3:27 AM CSTMesoscale DiscussionSPC5 hr
Jan 23, 4:12 PM CSTDense Fog AdvisoryLSX67 hr
Jan 26, 9:21 PM CSTDense Fog AdvisoryLSX15 hr
Jan 28, 9:04 PM CSTDense Fog AdvisoryLSX13 hr
Feb 7, 2:15 PM CSTWind AdvisoryLSX28 hr
Feb 15, 1:06 PM CSTWinter Weather AdvisoryLSX28 hr
Feb 25, 1:35 PM CSTRed Flag WarningLSX28 hr
Mar 4, 1:25 PM CSTMesoscale DiscussionSPC2 hr
Mar 13, 11:00 PM CDTSevere Thunderstorm WatchSPC7 hr
Mar 14, 2:30 AM CDTMesoscale DiscussionSPC90 min
Mar 14, 2:40 AM CDTSevere Thunderstorm WarningLSX50 min
Mar 14, 1:33 PM CDTTornado WatchSPC7 hr
Mar 24, 2:18 PM CDTWind AdvisoryLSX29 hr
Mar 26, 2:28 PM CDTFreeze WarningLSX19 hr
Mar 31, 5:26 PM CDTMesoscale DiscussionSPC2 hr
Apr 1, 12:35 PM CDTMesoscale DiscussionSPC115 min
Apr 3, 2:59 AM CDTWind AdvisoryLSX16 hr
Apr 5, 2:33 AM CDTFreeze WarningLSX29 hr
Apr 16, 11:04 AM CDTMesoscale DiscussionSPC2 hr
Apr 16, 12:06 PM CDTTornado WatchSPC10 hr
Apr 16, 1:56 PM CDTMesoscale DiscussionSPC64 min
Apr 16, 2:48 PM CDTWind AdvisoryLSX6 hr
Apr 16, 6:23 PM CDTMesoscale DiscussionSPC2 hr
Apr 16, 7:33 PM CDTSevere Thunderstorm WarningLSX23 min
Apr 20, 2:24 PM CDTFrost AdvisoryLSX18 hr
Apr 21, 1:54 PM CDTFrost AdvisoryLSX18 hr
Apr 27, 1:18 PM CDTFlood WatchLSX12 hr
Apr 27, 9:15 PM CDTMesoscale DiscussionSPC60 min
Apr 27, 9:41 PM CDTTornado WatchSPC6 hr
May 2, 3:36 PM CDTSevere Thunderstorm WarningLSX39 min
May 2, 3:51 PM CDTSevere Thunderstorm WarningLSX41 min
May 4, 1:56 PM CDTMesoscale DiscussionSPC94 min
May 6, 11:56 PM CDTMesoscale DiscussionSPC94 min
May 7, 12:53 AM CDTTornado WatchSPC7 hr
May 7, 2:29 AM CDTMesoscale DiscussionSPC2 hr
May 14, 8:45 AM CDTAreal Flood AdvisoryLSX4 hr
May 21, 3:54 PM CDTMesoscale DiscussionSPC2 hr
May 21, 5:33 PM CDTMesoscale DiscussionSPC117 min
May 21, 5:56 PM CDTTornado WatchSPC6 hr
May 21, 7:55 PM CDTMesoscale DiscussionSPC2 hr
May 24, 11:57 AM CDTMesoscale DiscussionSPC2 hr
May 24, 2:39 PM CDTSevere Thunderstorm WatchSPC10 hr
May 27, 5:10 PM CDTMesoscale DiscussionSPC2 hr
May 28, 12:02 PM CDTRiver Flood WarningLSX9 days
Jun 1, 11:39 PM CDTDense Fog AdvisoryLSX8 hr
Jun 13, 2:02 PM CDTMesoscale DiscussionSPC118 min
Jun 13, 2:59 PM CDTSevere Thunderstorm WatchSPC10 hr
Jun 13, 5:18 PM CDTMesoscale DiscussionSPC87 min
Jun 13, 5:33 PM CDTSevere Thunderstorm Warning Considerable damage threatLSX57 min
Jun 13, 6:12 PM CDTSevere Thunderstorm WarningLSX49 min
Jun 13, 7:48 PM CDTMesoscale DiscussionSPC87 min
Jun 22, 7:36 PM CDTSevere Thunderstorm WatchSPC5 hr
Jun 25, 12:10 PM CDTSevere Thunderstorm WatchSPC5 hr
Jun 25, 2:38 PM CDTSevere Thunderstorm WarningLSX52 min
Jun 25, 3:08 PM CDTSevere Thunderstorm WarningLSX52 min
Jun 26, 12:15 PM CDTRiver Flood WarningLSX30 days
Jun 26, 12:17 PM CDTRiver Flood WarningLSX28 days
Jun 26, 12:27 PM CDTRiver Flood WarningLSX28 days
Jun 26, 12:27 PM CDTRiver Flood WarningLSX29 days
Jul 2, 2:26 PM CDTFlood WatchLSX12 hr
Jul 2, 4:45 PM CDTSevere Thunderstorm WatchSPC7 hr
Jul 2, 8:54 PM CDTSevere Thunderstorm WarningLSX51 min
Jul 7, 3:51 PM CDTSevere Thunderstorm WarningLSX16 min
Jul 7, 4:31 PM CDTSevere Thunderstorm WarningLSX44 min
Jul 7, 5:08 PM CDTSevere Thunderstorm WarningLSX52 min
Jul 8, 9:17 PM CDTAreal Flood AdvisoryLSX3 hr
Jul 13, 2:29 PM CDTHeat AdvisoryLSX68 hr
Jul 28, 3:27 AM CDTHeat AdvisoryLSX5 days
Jul 30, 5:43 AM CDTMesoscale DiscussionSPC92 min
Jul 30, 6:20 AM CDTSevere Thunderstorm WarningLSX40 min
Jul 30, 9:30 AM CDTSevere Thunderstorm WatchSPC8 hr
Jul 30, 12:49 PM CDTMesoscale DiscussionSPC116 min
Jul 30, 1:56 PM CDTMesoscale DiscussionSPC2 hr
Jul 30, 3:36 PM CDTMesoscale DiscussionSPC84 min
Jul 31, 2:31 AM CDTMesoscale DiscussionSPC119 min
Jul 31, 3:46 AM CDTSevere Thunderstorm WatchSPC5 hr
Jul 31, 5:30 AM CDTMesoscale DiscussionSPC2 hr
Jul 31, 5:35 AM CDTSevere Thunderstorm WarningLSX40 min
Jul 31, 6:12 AM CDTSevere Thunderstorm WarningLSX48 min
Jul 31, 11:01 AM CDTMesoscale DiscussionSPC89 min
Jul 31, 1:12 PM CDTSevere Thunderstorm WarningLSX33 min
Aug 16, 1:19 AM CDTMesoscale DiscussionSPC116 min
Aug 25, 2:39 AM CDTHeat AdvisoryLSX65 hr
Aug 27, 5:16 PM CDTMesoscale DiscussionSPC119 min
Oct 14, 2:13 PM CDTFreeze WarningLSX43 hr
Oct 30, 11:25 PM CDTSevere Thunderstorm WarningLSX65 min
Nov 14, 12:39 PM CSTDense Fog AdvisoryLSX20 hr
Dec 14, 1:18 AM CSTWinter Weather AdvisoryLSX6 hr
Dec 14, 9:31 PM CSTDense Fog AdvisoryLSX7 hr
Dec 25, 1:34 PM CSTDense Fog AdvisoryLSX22 hr
Dec 28, 2:15 AM CSTDense Fog AdvisoryLSX11 hr
Dec 28, 7:27 PM CSTDense Fog AdvisoryLSX17 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 archive20232025

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.