Alert archive / Illinois / Richland County

Weather alerts in Richland County, Illinois, 2020

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

Richland County and its neighbors

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

Alerts
84
Warnings
25
Watches
14
Advisories
23
Busiest month
March15 alerts
Busiest day
March 27, 20204 alerts

Over time

By month

Warning verification

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

Richland County, 2020

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings8188%2100%17 min
Flash flood warnings00

Each office's whole area, 2020

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Lincoln, IL: tornado warnings21671%2065%5 min
NWS Lincoln, IL: severe thunderstorm warnings1376453%36873%23 min
NWS Lincoln, IL: flash flood warnings351751%4065%75 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 8, 2:58 PM CSTFlood WatchILX69 hr
Jan 9, 10:08 AM CSTRiver Flood WarningILX16 days
Jan 14, 7:53 PM CSTDense Fog AdvisoryILX13 hr
Jan 16, 3:10 PM CSTWinter Weather AdvisoryILX39 hr
Jan 16, 3:21 PM CSTFlood WatchILX43 hr
Feb 4, 3:28 PM CSTWinter Weather AdvisoryILX45 hr
Feb 10, 5:54 AM CSTRiver Flood WarningILX6 days
Feb 26, 5:24 AM CSTRiver Flood WarningILX58 hr
Mar 3, 12:54 AM CSTRiver Flood WarningILX3 days
Mar 3, 1:18 AM CSTSpecial Weather StatementILX42 min
Mar 11, 5:24 AM CDTRiver Flood WarningILX5 days
Mar 12, 6:39 AM CDTDense Fog AdvisoryILX5 hr
Mar 17, 10:13 AM CDTRiver Flood WarningILX9 days
Mar 19, 3:47 AM CDTFlash Flood WatchILX45 hr
Mar 25, 1:51 AM CDTDense Fog AdvisoryILX9 hr
Mar 25, 11:02 AM CDTDense Fog AdvisoryILX58 min
Mar 27, 3:30 AM CDTSevere Thunderstorm WarningILX45 min
Mar 27, 3:43 AM CDTMesoscale DiscussionSPC92 min
Mar 27, 4:02 AM CDTSevere Thunderstorm WarningILX43 min
Mar 27, 10:00 AM CDTRiver Flood WarningILX65 hr
Mar 27, 8:02 PM CDTMesoscale DiscussionSPC88 min
Mar 28, 1:17 PM CDTMesoscale DiscussionSPC88 min
Mar 28, 3:53 PM CDTTornado WatchSPC5 hr
Apr 8, 3:08 PM CDTSevere Thunderstorm WatchSPC6 hr
Apr 8, 7:13 PM CDTSevere Thunderstorm WarningILX47 min
Apr 8, 7:46 PM CDTMesoscale DiscussionSPC119 min
Apr 8, 7:57 PM CDTSevere Thunderstorm WarningILX33 min
Apr 10, 3:14 AM CDTFrost AdvisoryILX24 hr
Apr 12, 3:39 AM CDTWind AdvisoryILX35 hr
Apr 14, 3:21 PM CDTFreeze WarningILX17 hr
Apr 17, 12:41 PM CDTFrost AdvisoryILX20 hr
Apr 24, 2:13 AM CDTDense Fog AdvisoryILX7 hr
Apr 26, 12:02 PM CDTRiver Flood WarningILX9 days
Apr 28, 6:41 PM CDTMesoscale DiscussionSPC64 min
Apr 28, 10:23 PM CDTSpecial Weather StatementILX82 min
May 7, 3:12 AM CDTFreeze WatchILX24 hr
May 8, 3:01 AM CDTFreeze WarningILX29 hr
May 16, 3:38 PM CDTMesoscale DiscussionSPC3 hr
May 17, 1:44 PM CDTMesoscale DiscussionSPC2 hr
May 17, 4:18 PM CDTSevere Thunderstorm WatchSPC5 hr
May 17, 4:54 PM CDTSpecial Weather StatementILX51 min
May 18, 12:53 PM CDTRiver Flood WarningILX31 hr
May 20, 5:50 AM CDTRiver Flood WarningILX64 hr
May 24, 3:28 PM CDTSpecial Weather StatementILX47 min
Jun 3, 1:45 PM CDTMesoscale DiscussionSPC2 hr
Jun 4, 2:42 PM CDTMesoscale DiscussionSPC2 hr
Jun 9, 2:20 AM CDTWind AdvisoryILX18 hr
Jun 9, 3:54 PM CDTMesoscale DiscussionSPC66 min
Jun 29, 3:21 AM CDTFlash Flood WatchILX58 hr
Jul 8, 4:40 PM CDTSevere Thunderstorm WarningILX50 min
Jul 15, 5:35 PM CDTMesoscale DiscussionSPC85 min
Jul 15, 6:12 PM CDTTornado WatchSPC5 hr
Jul 15, 7:04 PM CDTSevere Thunderstorm WarningILX56 min
Jul 15, 8:01 PM CDTSevere Thunderstorm WarningILX44 min
Jul 15, 9:26 PM CDTSevere Thunderstorm WarningILX49 min
Jul 17, 3:39 AM CDTHeat AdvisoryILX40 hr
Jul 18, 7:55 PM CDTHeat AdvisoryILX23 hr
Jul 19, 11:03 PM CDTFlash Flood WatchILX5 hr
Jul 20, 5:31 AM CDTRiver Flood WarningILX8 days
Jul 21, 5:04 PM CDTMesoscale DiscussionSPC56 min
Jul 21, 8:49 PM CDTSpecial Weather StatementILX41 min
Jul 27, 12:14 PM CDTMesoscale DiscussionSPC91 min
Jul 30, 2:58 AM CDTFlash Flood WatchILX17 hr
Jul 31, 4:14 AM CDTRiver Flood WarningILX9 days
Aug 10, 2:58 PM CDTSevere Thunderstorm WatchSPC6 hr
Aug 10, 5:17 PM CDTMesoscale DiscussionSPC118 min
Aug 10, 6:10 PM CDTSpecial Weather StatementILX50 min
Aug 10, 7:29 PM CDTMesoscale DiscussionSPC91 min
Aug 26, 3:04 AM CDTDense Fog AdvisoryILX5 hr
Sep 1, 4:35 AM CDTDense Fog AdvisoryILX4 hr
Sep 10, 7:12 AM CDTDense Fog AdvisoryILX108 min
Oct 4, 2:19 AM CDTFrost AdvisoryILX30 hr
Oct 11, 6:33 AM CDTDense Fog AdvisoryILX3 hr
Oct 15, 3:15 AM CDTFreeze WarningILX30 hr
Oct 16, 3:43 AM CDTFrost AdvisoryILX28 hr
Oct 16, 3:52 AM CDTFire Weather WatchILX11 hr
Oct 16, 2:29 PM CDTRed Flag WarningILX30 hr
Oct 22, 12:58 AM CDTDense Fog AdvisoryILX6 hr
Oct 28, 2:45 PM CDTFlood WatchILX19 hr
Nov 10, 5:01 PM CSTMesoscale DiscussionSPC119 min
Nov 14, 3:20 AM CSTWind AdvisoryILX38 hr
Nov 18, 2:43 PM CSTWind AdvisoryILX27 hr
Nov 22, 7:47 AM CSTRiver Flood WarningILX8 days
Dec 23, 3:05 AM CSTWind AdvisoryILX24 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 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.