Alert archive / Illinois / McHenry County

Weather alerts in McHenry County, Illinois, 2004

80 weather alerts in 2004, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

McHenry County and its neighbors

Each county as a circle sized by its count in 2004. Tap one for its archive.

Alerts
80
Warnings
17
Watches
21
Advisories
0
Busiest month
May36 alerts
Busiest day
May 23, 20046 alerts

Over time

By month

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, 9:27 AM CSTMesoscale DiscussionSPC4 hr
Jan 16, 9:00 PM CSTMesoscale DiscussionSPC6 hr
Mar 1, 11:30 AM CSTSevere Thunderstorm WatchSPC6 hr
Mar 1, 1:30 PM CSTMesoscale DiscussionSPC60 min
Mar 1, 2:05 PM CSTSevere Thunderstorm WarningLOT25 min
Apr 17, 1:25 AM CDTMesoscale DiscussionSPC65 min
Apr 20, 8:55 PM CDTMesoscale DiscussionSPC65 min
May 7, 4:24 AM CDTMesoscale DiscussionSPC96 min
May 7, 4:33 PM CDTMesoscale DiscussionSPC87 min
May 7, 5:25 PM CDTSevere Thunderstorm WatchSPC6 hr
May 7, 8:20 PM CDTMesoscale DiscussionSPC85 min
May 8, 4:00 PM CDTMesoscale DiscussionSPC3 hr
May 8, 9:55 PM CDTMesoscale DiscussionSPC2 hr
May 9, 11:48 AM CDTMesoscale DiscussionSPC2 hr
May 9, 4:46 PM CDTMesoscale DiscussionSPC59 min
May 9, 6:09 PM CDTSevere Thunderstorm WarningLOT21 min
May 10, 11:05 AM CDTMesoscale DiscussionSPC115 min
May 12, 4:13 PM CDTSevere Thunderstorm WarningLOT47 min
May 12, 4:53 PM CDTSevere Thunderstorm WarningLOT52 min
May 17, 6:44 PM CDTMesoscale DiscussionSPC61 min
May 17, 7:15 PM CDTSevere Thunderstorm WatchSPC5 hr
May 17, 11:43 PM CDTFlash Flood WarningLOT6 hr
May 20, 3:35 PM CDTSevere Thunderstorm WatchSPC6 hr
May 20, 7:20 PM CDTFlash Flood WarningLOT3 hr
May 20, 7:32 PM CDTMesoscale DiscussionSPC88 min
May 20, 9:02 PM CDTSevere Thunderstorm WarningLOT43 min
May 21, 5:35 PM CDTTornado WatchSPC5 hr
May 21, 7:09 PM CDTFlash Flood WarningLOT3 hr
May 22, 12:05 AM CDTSevere Thunderstorm WatchSPC6 hr
May 22, 12:36 AM CDTSevere Thunderstorm WarningLOT54 min
May 22, 2:41 AM CDTMesoscale DiscussionSPC94 min
May 22, 6:15 PM CDTTornado WatchSPC6 hr
May 22, 8:58 PM CDTMesoscale DiscussionSPC92 min
May 23, 12:24 AM CDTMesoscale DiscussionSPC66 min
May 23, 12:40 AM CDTSevere Thunderstorm WatchSPC5 hr
May 23, 4:30 AM CDTMesoscale DiscussionSPC60 min
May 23, 2:05 PM CDTTornado WatchSPC8 hr
May 23, 5:10 PM CDTMesoscale DiscussionSPC95 min
May 30, 3:16 PM CDTMesoscale DiscussionSPC119 min
May 30, 4:25 PM CDTTornado WatchSPC6 hr
May 30, 5:36 PM CDTMesoscale DiscussionSPC54 min
May 30, 7:16 PM CDTFlash Flood WarningLOT119 min
May 30, 7:16 PM CDTSevere Thunderstorm WarningLOT44 min
Jun 8, 7:23 PM CDTSevere Thunderstorm WarningLOT67 min
Jun 11, 5:56 PM CDTMesoscale DiscussionSPC94 min
Jun 11, 6:20 PM CDTTornado WatchSPC5 hr
Jun 11, 10:04 PM CDTMesoscale DiscussionSPC56 min
Jun 12, 1:48 AM CDTMesoscale DiscussionSPC87 min
Jun 12, 3:08 AM CDTMesoscale DiscussionSPC97 min
Jun 14, 6:50 AM CDTSevere Thunderstorm WatchSPC6 hr
Jun 14, 10:03 AM CDTMesoscale DiscussionSPC57 min
Jun 23, 11:23 AM CDTMesoscale DiscussionSPC2 hr
Jun 23, 3:45 PM CDTMesoscale DiscussionSPC90 min
Jun 23, 5:00 PM CDTSevere Thunderstorm WatchSPC6 hr
Jun 23, 5:30 PM CDTSevere Thunderstorm WarningLOT45 min
Jul 13, 10:55 AM CDTTornado WatchSPC6 hr
Jul 13, 1:39 PM CDTMesoscale DiscussionSPC66 min
Jul 16, 10:51 AM CDTMesoscale DiscussionSPC2 hr
Jul 16, 12:10 PM CDTSevere Thunderstorm WatchSPC5 hr
Jul 16, 2:45 PM CDTMesoscale DiscussionSPC90 min
Jul 20, 5:35 PM CDTMesoscale DiscussionSPC55 min
Jul 20, 6:00 PM CDTSevere Thunderstorm WatchSPC4 hr
Jul 20, 6:08 PM CDTMesoscale DiscussionSPC2 hr
Jul 21, 7:53 AM CDTMesoscale DiscussionSPC2 hr
Jul 21, 9:03 AM CDTMesoscale DiscussionSPC117 min
Jul 21, 9:35 AM CDTSevere Thunderstorm WatchSPC5 hr
Jul 21, 1:01 PM CDTMesoscale DiscussionSPC89 min
Jul 21, 2:35 PM CDTSevere Thunderstorm WatchSPC6 hr
Aug 3, 7:55 PM CDTSevere Thunderstorm WatchSPC5 hr
Aug 24, 6:24 PM CDTTornado WarningLOT36 min
Aug 24, 7:13 PM CDTSevere Thunderstorm WarningLOT47 min
Aug 25, 1:22 PM CDTMesoscale DiscussionSPC113 min
Aug 26, 11:53 PM CDTMesoscale DiscussionSPC97 min
Aug 27, 1:25 AM CDTSevere Thunderstorm WatchSPC6 hr
Aug 27, 1:56 AM CDTSevere Thunderstorm WarningLOT49 min
Oct 29, 8:57 PM CDTSevere Thunderstorm WarningLOT48 min
Oct 29, 10:45 PM CDTMesoscale DiscussionSPC60 min
Oct 29, 10:55 PM CDTSevere Thunderstorm WatchSPC4 hr
Oct 30, 1:02 AM CDTMesoscale DiscussionSPC88 min
Nov 30, 5:50 PM CSTMesoscale DiscussionSPC6 hr

By product

Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.

ProductAlerts
Severe storms
Severe Thunderstorm Warning12
Tornado Warning1
Severe Thunderstorm Watch15
Tornado Watch6
Mesoscale Discussion42
Flooding
Flash Flood Warning4

The busiest days

Days with the most alerts issued, by UTC date.

  1. May 23, 20046alerts
  2. May 22, 20045alerts
  3. July 21, 20045alerts
  4. May 9, 20044alerts
  5. May 21, 20044alerts
  6. June 23, 20044alerts
  7. October 30, 20044alerts
  8. March 1, 20043alerts
  9. May 7, 20043alerts
  10. May 30, 20043alerts

Nearby

Alerts in force nowTornadoes on recordForecastThe radar archive20032005

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. Rebuilt daily.