Alert archive / Illinois / Ford County

Weather alerts in Ford County, Illinois, 2023

91 weather alerts in 2023, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Ford County and its neighbors

Each county as a circle sized by its count in 2023. Tap one for its archive.

Alerts
91
Warnings
17
Watches
13
Advisories
33
Busiest month
April17 alerts
Busiest day
March 31, 20235 alerts

Over time

By month

Warning verification

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

2 of 3 tornado warnings covering Ford County in 2023 had a tornado report inside them; 2 of 3 tornado reports fell inside a warning, on average 12 minutes after it went out.

Ford County, 2023

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings3233%367%12 min
Severe thunderstorm warnings4325%683%51 min
Flash flood warnings110%1100%34 min

Each office's whole area, 2023

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Chicago, IL: tornado warnings321747%6856%11 min
NWS Chicago, IL: severe thunderstorm warnings16410635%54484%27 min
NWS Chicago, IL: flash flood warnings191047%4290%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 1, 5:16 PM CSTDense Fog AdvisoryLOT16 hr
Jan 2, 9:04 AM CSTDense Fog AdvisoryLOT19 hr
Jan 3, 5:46 PM CSTTornado WarningLOT44 min
Jan 3, 6:19 PM CSTTornado WarningLOT22 min
Jan 19, 8:26 AM CSTDense Fog AdvisoryLOT2 hr
Jan 24, 1:57 AM CSTWinter Weather AdvisoryLOT52 hr
Jan 30, 12:03 AM CSTWinter Weather AdvisoryLOT8 hr
Feb 7, 2:42 PM CSTHigh Wind WatchLOT23 hr
Feb 8, 2:01 PM CSTWind AdvisoryLOT28 hr
Feb 9, 6:01 AM CSTSpecial Weather StatementLOT29 min
Feb 14, 4:03 AM CSTWind AdvisoryLOT34 hr
Feb 22, 1:27 PM CSTAreal Flood AdvisoryLOT11 hr
Feb 23, 4:19 AM CSTDense Fog AdvisoryLOT5 hr
Feb 27, 8:46 AM CSTMesoscale DiscussionSPC89 min
Feb 27, 9:14 AM CSTWind AdvisoryLOT3 hr
Mar 2, 2:39 AM CSTWinter Storm WatchLOT18 hr
Mar 2, 8:38 PM CSTWinter Weather AdvisoryLOT22 hr
Mar 3, 12:29 PM CSTHigh Wind WarningLOT4 hr
Mar 4, 10:24 PM CSTDense Fog AdvisoryLOT11 hr
Mar 26, 1:41 PM CDTMesoscale DiscussionSPC2 hr
Mar 31, 3:06 AM CDTWind AdvisoryLOT37 hr
Mar 31, 2:07 PM CDTMesoscale DiscussionSPC83 min
Mar 31, 2:36 PM CDTTornado WatchSPC7 hr
Mar 31, 3:50 PM CDTMesoscale DiscussionSPC55 min
Mar 31, 6:20 PM CDTMesoscale DiscussionSPC115 min
Mar 31, 7:38 PM CDTSevere Thunderstorm WarningLOT22 min
Mar 31, 7:42 PM CDTTornado WarningLOT48 min
Mar 31, 7:54 PM CDTMesoscale DiscussionSPC2 hr
Apr 4, 5:45 AM CDTSpecial Weather StatementLOT30 min
Apr 4, 3:42 PM CDTWind AdvisoryLOT24 hr
Apr 5, 3:27 AM CDTMesoscale DiscussionSPC93 min
Apr 5, 3:57 AM CDTSevere Thunderstorm WatchSPC8 hr
Apr 11, 3:19 AM CDTFire Weather WatchLOT23 hr
Apr 12, 2:40 AM CDTRed Flag WarningLOT16 hr
Apr 16, 3:14 PM CDTWind AdvisoryLOT23 hr
Apr 17, 2:43 PM CDTFreeze WarningLOT17 hr
Apr 20, 3:53 AM CDTWind AdvisoryLOT14 hr
Apr 20, 5:23 PM CDTMesoscale DiscussionSPC97 min
Apr 22, 1:56 PM CDTFreeze WatchLOT13 hr
Apr 23, 2:56 AM CDTFreeze WarningLOT29 hr
Apr 25, 1:41 PM CDTFrost AdvisoryLOT18 hr
Apr 26, 2:28 PM CDTFrost AdvisoryLOT17 hr
May 7, 12:55 AM CDTSpecial Weather StatementLOT35 min
May 7, 6:36 PM CDTFlood WatchLOT8 hr
May 7, 6:40 PM CDTMesoscale DiscussionSPC65 min
May 7, 6:58 PM CDTSevere Thunderstorm WatchSPC5 hr
May 7, 8:45 PM CDTMesoscale DiscussionSPC90 min
May 7, 9:06 PM CDTDust Storm WarningLOT84 min
May 7, 9:16 PM CDTSevere Thunderstorm WarningLOT89 min
May 7, 10:43 PM CDTSevere Thunderstorm WarningLOT15 min
May 8, 5:34 AM CDTSpecial Weather StatementLOT41 min
Jun 1, 1:33 PM CDTSpecial Weather StatementLOT27 min
Jun 29, 3:08 AM CDTSevere Thunderstorm WatchSPC6 hr
Jun 29, 6:06 AM CDTMesoscale DiscussionSPC84 min
Jun 29, 10:34 AM CDTSevere Thunderstorm WatchSPC6 hr
Jun 29, 12:27 PM CDTSevere Thunderstorm Warning Considerable damage threatLOT78 min
Jun 29, 12:41 PM CDTMesoscale DiscussionSPC2 hr
Jun 30, 4:27 AM CDTDense Fog AdvisoryLOT5 hr
Jul 5, 12:49 PM CDTMesoscale DiscussionSPC116 min
Jul 23, 4:15 PM CDTSpecial Weather StatementLOT30 min
Jul 23, 4:36 PM CDTSpecial Weather StatementLOT39 min
Jul 26, 3:50 AM CDTHeat AdvisoryLOT65 hr
Jul 27, 3:05 AM CDTExcessive Heat WarningLOT42 hr
Jul 27, 4:06 AM CDTDense Fog AdvisoryLOT4 hr
Jul 28, 2:52 AM CDTMesoscale DiscussionSPC113 min
Jul 28, 7:21 PM CDTMesoscale DiscussionSPC2 hr
Jul 28, 7:30 PM CDTSevere Thunderstorm WatchSPC7 hr
Aug 4, 5:17 AM CDTDense Fog AdvisoryLOT3 hr
Aug 5, 2:11 AM CDTFlood WatchLOT18 hr
Aug 5, 1:26 PM CDTFlash Flood WarningLOT3 hr
Aug 5, 4:40 PM CDTAreal Flood AdvisoryLOT110 min
Aug 7, 4:11 AM CDTAreal Flood AdvisoryLOT5 hr
Aug 9, 12:18 PM CDTMesoscale DiscussionSPC2 hr
Aug 12, 3:18 AM CDTSpecial Weather StatementLOT27 min
Aug 12, 5:30 AM CDTSpecial Weather StatementLOT30 min
Aug 14, 11:13 AM CDTMesoscale DiscussionSPC2 hr
Aug 19, 2:47 AM CDTHeat AdvisoryLOT41 hr
Aug 20, 4:12 PM CDTHeat AdvisoryLOT52 hr
Aug 21, 2:47 AM CDTExcessive Heat WatchLOT48 hr
Aug 22, 2:59 AM CDTExcessive Heat WarningLOT65 hr
Sep 26, 1:20 PM CDTMesoscale DiscussionSPC85 min
Sep 26, 2:02 PM CDTMesoscale DiscussionSPC88 min
Sep 29, 1:34 AM CDTDense Fog AdvisoryLOT7 hr
Oct 9, 2:04 PM CDTFrost AdvisoryLOT18 hr
Oct 10, 2:18 PM CDTFrost AdvisoryLOT18 hr
Oct 29, 3:24 AM CDTFreeze WarningLOT30 hr
Oct 30, 8:34 AM CDTFreeze WarningLOT24 hr
Nov 5, 12:33 AM CDTDense Fog AdvisoryLOT10 hr
Dec 22, 11:35 PM CSTDense Fog AdvisoryLOT12 hr
Dec 23, 3:29 PM CSTDense Fog AdvisoryLOT21 hr
Dec 30, 6:15 PM CSTWinter Weather AdvisoryLOT17 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 archive20222024

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.