Alert archive / Illinois / Stephenson County

Weather alerts in Stephenson County, Illinois, 2009

121 weather alerts in 2009, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Stephenson County and its neighbors

Each county as a circle sized by its count in 2009. Tap one for its archive.

Alerts
121
Warnings
26
Watches
25
Advisories
30
Busiest month
June22 alerts
Busiest day
June 19, 200911 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 3, 3:24 AM CSTWinter Weather AdvisoryDVN26 hr
Jan 8, 3:11 PM CSTWinter Weather AdvisoryDVN48 hr
Jan 10, 3:04 AM CSTWinter Storm WarningDVN9 hr
Jan 11, 3:24 PM CSTWinter Storm WatchDVN12 hr
Jan 12, 3:24 AM CSTBlizzard WatchDVN10 hr
Jan 12, 3:24 AM CSTWinter Weather AdvisoryDVN23 hr
Jan 12, 1:06 PM CSTBlizzard WarningDVN11 hr
Jan 12, 6:27 PM CSTMesoscale DiscussionSPC4 hr
Jan 13, 2:45 AM CSTWind Chill AdvisoryDVN12 hr
Jan 13, 3:15 AM CSTWinter Weather AdvisoryDVN36 hr
Jan 13, 11:38 PM CSTMesoscale DiscussionSPC4 hr
Jan 14, 3:45 AM CSTWind Chill WarningDVN56 hr
Jan 16, 3:09 PM CSTWind Chill AdvisoryDVN9 hr
Jan 17, 4:48 PM CSTWinter Weather AdvisoryDVN7 hr
Jan 23, 4:04 AM CSTWind Chill AdvisoryDVN32 hr
Feb 19, 2:47 PM CSTWinter Storm WatchDVN14 hr
Feb 20, 4:17 AM CSTWinter Storm WarningDVN35 hr
Feb 20, 11:57 PM CSTMesoscale DiscussionSPC5 hr
Feb 26, 12:27 PM CSTSevere Thunderstorm WarningDVN33 min
Mar 6, 11:21 AM CSTFlash Flood WatchDVN51 hr
Mar 7, 7:55 PM CSTRiver Flood WarningDVN9 days
Mar 8, 5:38 AM CDTAreal Flood WarningDVN15 hr
Mar 9, 4:19 AM CDTFlash Flood WatchDVN32 hr
Mar 10, 4:22 AM CDTWind AdvisoryDVN27 hr
Mar 10, 9:25 AM CDTDense Fog AdvisoryDVN4 hr
Mar 25, 4:49 AM CDTRiver Flood WarningDVN52 hr
Mar 27, 11:32 AM CDTWinter Storm WatchDVN16 hr
Mar 28, 3:33 AM CDTWinter Storm WarningDVN24 hr
Mar 29, 3:35 AM CDTWinter Weather AdvisoryDVN5 hr
Apr 4, 4:00 AM CDTWinter Storm WatchDVN12 hr
Apr 4, 3:43 PM CDTWinter Storm WarningDVN28 hr
Apr 4, 3:43 PM CDTWinter Weather AdvisoryDVN28 hr
Apr 23, 11:42 PM CDTDense Fog AdvisoryDVN8 hr
Apr 25, 5:32 PM CDTMesoscale DiscussionSPC73 min
Apr 25, 11:29 PM CDTSpecial Weather StatementDVN61 min
Apr 26, 2:00 PM CDTMesoscale DiscussionSPC60 min
Apr 26, 5:02 PM CDTTornado WatchSPC6 hr
Apr 26, 5:14 PM CDTMesoscale DiscussionSPC61 min
May 6, 6:40 PM CDTSpecial Weather StatementDVN95 min
May 8, 5:47 PM CDTMesoscale DiscussionSPC58 min
May 8, 6:10 PM CDTSevere Thunderstorm WatchSPC4 hr
May 8, 8:35 PM CDTMesoscale DiscussionSPC85 min
May 13, 5:47 PM CDTMesoscale DiscussionSPC88 min
May 13, 6:53 PM CDTSpecial Weather StatementDVN52 min
May 13, 7:51 PM CDTSpecial Weather StatementDVN54 min
May 13, 8:35 PM CDTMesoscale DiscussionSPC85 min
May 13, 9:06 PM CDTFlash Flood WarningDVN5 hr
May 14, 3:19 PM CDTFlash Flood WatchDVN31 hr
May 16, 3:53 AM CDTFrost AdvisoryDVN28 hr
Jun 18, 8:23 PM CDTMesoscale DiscussionSPC97 min
Jun 18, 11:07 PM CDTMesoscale DiscussionSPC53 min
Jun 18, 11:30 PM CDTSevere Thunderstorm WatchSPC7 hr
Jun 19, 1:48 AM CDTSpecial Weather StatementDVN57 min
Jun 19, 2:38 AM CDTMesoscale DiscussionSPC97 min
Jun 19, 6:58 AM CDTMesoscale DiscussionSPC62 min
Jun 19, 7:14 AM CDTSevere Thunderstorm WatchSPC7 hr
Jun 19, 9:02 AM CDTSevere Thunderstorm WarningDVN58 min
Jun 19, 1:54 PM CDTMesoscale DiscussionSPC96 min
Jun 19, 2:24 PM CDTSevere Thunderstorm WatchSPC8 hr
Jun 19, 5:09 PM CDTFlash Flood WarningDVN3 hr
Jun 22, 3:25 PM CDTHeat AdvisoryDVN29 hr
Jun 24, 3:57 AM CDTHeat AdvisoryDVN11 hr
Jun 25, 10:40 AM CDTHeat AdvisoryDVN9 hr
Jun 25, 12:48 PM CDTSevere Thunderstorm WatchSPC6 hr
Jun 25, 2:56 PM CDTMesoscale DiscussionSPC64 min
Jun 25, 3:40 PM CDTSevere Thunderstorm WarningDVN24 min
Jun 25, 3:50 PM CDTSevere Thunderstorm WarningDVN14 min
Jun 27, 1:19 PM CDTMesoscale DiscussionSPC56 min
Jun 27, 2:41 PM CDTSevere Thunderstorm WatchSPC7 hr
Jun 27, 4:55 PM CDTSevere Thunderstorm WarningDVN44 min
Jun 27, 6:22 PM CDTMesoscale DiscussionSPC113 min
Jul 11, 2:31 AM CDTMesoscale DiscussionSPC29 min
Jul 24, 3:52 PM CDTMesoscale DiscussionSPC83 min
Jul 24, 5:02 PM CDTTornado WatchSPC6 hr
Jul 24, 5:16 PM CDTSevere Thunderstorm WarningDVN59 min
Jul 24, 6:07 PM CDTSevere Thunderstorm WarningDVN53 min
Jul 24, 6:53 PM CDTSevere Thunderstorm WarningDVN82 min
Jul 24, 7:20 PM CDTMesoscale DiscussionSPC85 min
Jul 27, 8:27 PM CDTSevere Thunderstorm WarningDVN93 min
Jul 27, 9:49 PM CDTFlash Flood WarningDVN6 hr
Jul 30, 4:51 PM CDTMesoscale DiscussionSPC114 min
Aug 8, 2:43 AM CDTHeat AdvisoryDVN40 hr
Aug 8, 7:46 AM CDTSpecial Weather StatementDVN89 min
Aug 9, 9:55 AM CDTMesoscale DiscussionSPC35 min
Aug 9, 10:21 AM CDTSevere Thunderstorm WatchSPC8 hr
Aug 9, 1:29 PM CDTSevere Thunderstorm WarningDVN61 min
Aug 9, 3:41 PM CDTFlash Flood WatchDVN11 hr
Aug 9, 5:52 PM CDTSevere Thunderstorm WatchSPC8 hr
Aug 9, 8:30 PM CDTMesoscale DiscussionSPC90 min
Aug 9, 9:36 PM CDTFlash Flood WarningDVN3 hr
Aug 9, 9:53 PM CDTSpecial Weather StatementDVN67 min
Aug 9, 10:55 PM CDTMesoscale DiscussionSPC95 min
Aug 19, 4:49 PM CDTTornado WatchSPC5 hr
Aug 19, 7:45 PM CDTMesoscale DiscussionSPC90 min
Aug 26, 9:10 AM CDTFlash Flood WatchDVN42 hr
Sep 9, 9:22 PM CDTDense Fog AdvisoryDVN13 hr
Sep 10, 3:10 PM CDTDense Fog AdvisoryDVN18 hr
Sep 26, 12:59 AM CDTDense Fog AdvisoryDVN6 hr
Sep 26, 7:11 AM CDTDense Fog AdvisoryDVN3 hr
Sep 27, 5:32 PM CDTMesoscale DiscussionSPC88 min
Sep 27, 6:12 PM CDTSpecial Weather StatementDVN63 min
Sep 29, 3:17 AM CDTFrost AdvisoryDVN24 hr
Oct 9, 4:02 AM CDTFreeze WarningDVN29 hr
Nov 20, 9:28 PM CSTDense Fog AdvisoryDVN13 hr
Nov 24, 3:56 AM CSTDense Fog AdvisoryDVN5 hr
Dec 6, 3:14 PM CSTWinter Storm WatchDVN25 hr
Dec 7, 3:46 AM CSTBlizzard WatchDVN34 hr
Dec 7, 3:45 PM CSTWinter Storm WarningDVN50 hr
Dec 8, 11:22 AM CSTMesoscale DiscussionSPC5 hr
Dec 8, 1:55 PM CSTBlizzard WarningDVN28 hr
Dec 8, 6:00 PM CSTMesoscale DiscussionSPC5 hr
Dec 9, 10:22 AM CSTMesoscale DiscussionSPC4 hr
Dec 9, 3:41 PM CSTWinter Weather AdvisoryDVN12 hr
Dec 10, 3:16 AM CSTWind Chill AdvisoryDVN9 hr
Dec 12, 2:52 PM CSTFreezing Rain AdvisoryDVN17 hr
Dec 14, 3:32 AM CSTDense Fog AdvisoryDVN8 hr
Dec 21, 3:18 PM CSTWinter Storm WatchDVN3 days
Dec 22, 3:47 PM CSTFlood WatchDVN62 hr
Dec 22, 4:07 PM CSTWinter Weather AdvisoryDVN36 hr
Dec 23, 12:21 PM CSTMesoscale DiscussionSPC4 hr
Dec 23, 6:41 PM CSTMesoscale DiscussionSPC4 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 Warning10
Severe Thunderstorm Watch8
Tornado Watch3
Mesoscale Discussion32
Special Weather Statement8
Flooding
Areal Flood Warning1
Flash Flood Warning4
River Flood Warning2
Flash Flood Watch5
Flood Watch1
Winter
Blizzard Warning2
Winter Storm Warning5
Blizzard Watch2
Winter Storm Watch6
Freezing Rain Advisory1
Winter Weather Advisory9
Heat
Heat Advisory4
Cold
Freeze Warning1
Wind Chill Warning1
Frost Advisory2
Wind Chill Advisory4
Wind and dust
Wind Advisory1
Fog and smoke
Dense Fog Advisory9

The busiest days

Days with the most alerts issued, by UTC date.

  1. June 19, 200911alerts
  2. June 25, 20095alerts
  3. July 24, 20095alerts
  4. August 9, 20095alerts
  5. April 26, 20094alerts
  6. May 14, 20094alerts
  7. June 27, 20094alerts
  8. August 10, 20094alerts
  9. January 12, 20093alerts
  10. January 13, 20093alerts

Nearby

Alerts in force nowTornadoes on recordForecastThe radar archive20082010

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.