Alert archive / Illinois / Jo Daviess County

Weather alerts in Jo Daviess County, Illinois, 2019

187 weather alerts in 2019, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Jo Daviess County and its neighbors

Each county as a circle sized by its count in 2019. Tap one for its archive.

Alerts
187
Warnings
46
Watches
34
Advisories
42
Busiest month
September31 alerts
Busiest day
June 30, 201911 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 warnings covering Jo Daviess County in 2019 had a tornado report inside them.

Jo Daviess County, 2019

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings10100%0
Severe thunderstorm warnings141029%1155%18 min
Flash flood warnings9633%2100%178 min

Each office's whole area, 2019

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Quad Cities, IA: tornado warnings331458%2767%18 min
NWS Quad Cities, IA: severe thunderstorm warnings16710338%31483%25 min
NWS Quad Cities, IA: flash flood warnings673745%6884%95 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 2, 6:39 AM CSTWinter Weather AdvisoryDVN6 hr
Jan 7, 2:50 PM CSTWind AdvisoryDVN30 hr
Jan 14, 1:06 PM CSTWinter Weather AdvisoryDVN41 hr
Jan 17, 10:05 AM CSTWinter Storm WatchDVN17 hr
Jan 17, 1:56 PM CSTWinter Storm WarningDVN44 hr
Jan 18, 6:58 PM CSTMesoscale DiscussionSPC6 hr
Jan 21, 4:27 AM CSTWinter Storm WatchDVN7 hr
Jan 21, 11:55 AM CSTWinter Weather AdvisoryDVN48 hr
Jan 22, 3:32 AM CSTWinter Storm WarningDVN32 hr
Jan 22, 2:36 PM CSTMesoscale DiscussionSPC4 hr
Jan 23, 2:40 PM CSTWind Chill WatchDVN12 hr
Jan 23, 2:40 PM CSTWinter Weather AdvisoryDVN30 hr
Jan 24, 2:52 AM CSTWind Chill AdvisoryDVN32 hr
Jan 24, 2:41 PM CSTWind Chill WarningDVN21 hr
Jan 26, 3:10 AM CSTWinter Storm WatchDVN12 hr
Jan 26, 3:26 PM CSTWinter Storm WarningDVN42 hr
Jan 26, 3:26 PM CSTWinter Weather AdvisoryDVN51 hr
Jan 26, 10:46 PM CSTWind Chill AdvisoryDVN10 hr
Jan 27, 2:27 PM CSTWind Chill WatchDVN24 hr
Jan 28, 3:01 AM CSTWind Chill AdvisoryDVN39 hr
Jan 28, 2:19 PM CSTWind Chill WarningDVN70 hr
Feb 2, 2:49 PM CSTDense Fog AdvisoryDVN33 hr
Feb 4, 2:15 PM CSTWinter Weather AdvisoryDVN37 hr
Feb 5, 1:37 PM CSTMesoscale DiscussionSPC5 hr
Feb 6, 3:08 AM CSTWinter Weather AdvisoryDVN48 hr
Feb 6, 3:49 AM CSTWinter Weather AdvisoryDVN47 hr
Feb 7, 6:26 AM CSTMesoscale DiscussionSPC4 hr
Feb 8, 3:13 AM CSTWind Chill AdvisoryDVN9 hr
Feb 10, 3:09 PM CSTWinter Storm WatchDVN12 hr
Feb 11, 3:08 AM CSTWinter Storm WarningDVN45 hr
Feb 15, 2:18 AM CSTWind Chill AdvisoryDVN7 hr
Feb 15, 3:08 PM CSTWinter Weather AdvisoryDVN57 hr
Feb 19, 3:46 AM CSTWinter Weather AdvisoryDVN36 hr
Feb 22, 4:16 AM CSTWinter Weather AdvisoryDVN30 hr
Feb 22, 2:53 PM CSTHigh Wind WatchDVN13 hr
Feb 23, 3:30 AM CSTWind AdvisoryDVN39 hr
Feb 23, 6:23 AM CSTFlash Flood WatchDVN15 hr
Feb 23, 6:21 PM CSTDense Fog AdvisoryDVN5 hr
Feb 23, 7:31 PM CSTSpecial Weather StatementDVN119 min
Feb 23, 9:46 PM CSTHigh Wind WarningDVN23 hr
Feb 24, 9:18 PM CSTWind Chill AdvisoryDVN12 hr
Feb 26, 8:23 PM CSTWinter Weather AdvisoryDVN13 hr
Mar 3, 3:42 AM CSTWind Chill AdvisoryDVN31 hr
Mar 9, 3:06 PM CSTWind AdvisoryDVN17 hr
Mar 11, 3:16 PM CDTFlood WatchDVN56 hr
Mar 13, 11:15 AM CDTRiver Flood WarningDVN93 days
Mar 14, 12:16 PM CDTRiver Flood WatchDVN26 hr
Mar 20, 10:38 AM CDTRiver Flood WarningDVN53 days
Mar 22, 11:12 AM CDTRiver Flood WarningDVN49 days
Apr 10, 3:13 AM CDTWind AdvisoryDVN40 hr
Apr 12, 3:52 AM CDTWind AdvisoryDVN16 hr
Apr 17, 5:16 PM CDTMesoscale DiscussionSPC89 min
Apr 22, 10:36 AM CDTSpecial Weather StatementDVN24 min
Apr 22, 2:42 PM CDTMesoscale DiscussionSPC2 hr
Apr 22, 5:09 PM CDTSevere Thunderstorm WarningDVN40 min
Apr 26, 2:48 PM CDTWinter Storm WatchDVN13 hr
Apr 27, 3:30 AM CDTWinter Storm WarningDVN10 hr
Apr 27, 3:30 AM CDTWinter Weather AdvisoryDVN17 hr
Apr 27, 11:32 AM CDTMesoscale DiscussionSPC6 hr
Apr 27, 3:39 PM CDTFreeze WarningDVN17 hr
May 3, 5:55 AM CDTDense Fog AdvisoryDVN3 hr
May 8, 5:06 PM CDTSpecial Weather StatementDVN54 min
May 16, 9:33 AM CDTSpecial Weather StatementDVN57 min
May 16, 7:14 PM CDTMesoscale DiscussionSPC2 hr
May 18, 2:40 AM CDTFlash Flood WatchDVN24 hr
May 18, 10:23 AM CDTRiver Flood WarningDVN25 days
May 19, 10:18 AM CDTSpecial Weather StatementDVN42 min
May 21, 10:34 PM CDTHigh Wind WarningDVN2 hr
May 22, 10:43 AM CDTRiver Flood WarningDVN21 days
May 24, 3:46 AM CDTFlash Flood WatchDVN23 hr
May 24, 9:14 AM CDTSpecial Weather StatementDVN46 min
May 24, 9:57 AM CDTSpecial Weather StatementDVN48 min
May 24, 3:25 PM CDTMesoscale DiscussionSPC65 min
May 24, 6:23 PM CDTTornado WatchSPC4 hr
May 24, 8:54 PM CDTSpecial Weather StatementDVN36 min
May 24, 8:57 PM CDTMesoscale DiscussionSPC2 hr
May 27, 12:50 PM CDTMesoscale DiscussionSPC85 min
May 28, 3:45 AM CDTFlash Flood WatchDVN25 hr
May 30, 12:00 AM CDTSpecial Weather StatementDVN90 min
Jun 1, 5:08 PM CDTSpecial Weather StatementDVN22 min
Jun 5, 1:56 AM CDTSpecial Weather StatementDVN94 min
Jun 6, 4:04 PM CDTSpecial Weather StatementDVN56 min
Jun 6, 4:35 PM CDTSpecial Weather StatementDVN25 min
Jun 12, 1:19 PM CDTSpecial Weather StatementDVN56 min
Jun 15, 9:17 PM CDTSpecial Weather StatementDVN88 min
Jun 24, 12:35 PM CDTMesoscale DiscussionSPC85 min
Jun 24, 7:09 PM CDTSpecial Weather StatementDVN36 min
Jun 27, 12:23 PM CDTSevere Thunderstorm WatchSPC6 hr
Jun 27, 1:55 PM CDTMesoscale DiscussionSPC95 min
Jun 27, 3:27 PM CDTMesoscale DiscussionSPC93 min
Jun 27, 3:29 PM CDTSpecial Weather StatementDVN31 min
Jun 30, 3:18 AM CDTHeat AdvisoryDVN18 hr
Jun 30, 11:43 AM CDTSevere Thunderstorm WatchSPC6 hr
Jun 30, 12:24 PM CDTSpecial Weather StatementDVN36 min
Jun 30, 12:47 PM CDTSpecial Weather StatementDVN28 min
Jun 30, 1:13 PM CDTSpecial Weather StatementDVN32 min
Jun 30, 3:20 PM CDTSevere Thunderstorm WatchSPC4 hr
Jun 30, 4:54 PM CDTSevere Thunderstorm WarningDVN51 min
Jun 30, 5:20 PM CDTMesoscale DiscussionSPC115 min
Jun 30, 5:31 PM CDTSevere Thunderstorm WarningDVN44 min
Jun 30, 5:35 PM CDTTornado WarningDVN25 min
Jun 30, 5:54 PM CDTSevere Thunderstorm WarningDVN66 min
Jul 2, 8:52 PM CDTSevere Thunderstorm WarningDVN38 min
Jul 9, 5:30 PM CDTMesoscale DiscussionSPC2 hr
Jul 14, 4:22 PM CDTSpecial Weather StatementDVN53 min
Jul 14, 5:09 PM CDTSpecial Weather StatementDVN66 min
Jul 14, 5:31 PM CDTSevere Thunderstorm WarningDVN25 min
Jul 15, 3:13 PM CDTExcessive Heat WatchDVN37 hr
Jul 16, 3:29 PM CDTExcessive Heat WarningDVN4 days
Jul 17, 4:00 AM CDTFlash Flood WatchDVN30 hr
Jul 20, 1:59 PM CDTMesoscale DiscussionSPC2 hr
Jul 20, 2:08 PM CDTSpecial Weather StatementDVN52 min
Jul 20, 2:44 PM CDTSevere Thunderstorm WarningDVN46 min
Jul 20, 2:47 PM CDTSevere Thunderstorm WatchSPC4 hr
Jul 23, 6:36 PM CDTSpecial Weather StatementDVN54 min
Jul 23, 7:28 PM CDTSpecial Weather StatementDVN32 min
Aug 5, 10:18 PM CDTSpecial Weather StatementDVN57 min
Aug 11, 5:08 AM CDTSpecial Weather StatementDVN67 min
Aug 12, 4:29 AM CDTDense Fog AdvisoryDVN5 hr
Aug 14, 12:09 AM CDTSpecial Weather StatementDVN51 min
Aug 18, 5:05 AM CDTSpecial Weather StatementDVN40 min
Aug 18, 5:44 AM CDTMesoscale DiscussionSPC91 min
Aug 18, 5:52 AM CDTSpecial Weather StatementDVN53 min
Aug 18, 6:06 AM CDTSevere Thunderstorm WatchSPC6 hr
Aug 18, 7:40 AM CDTMesoscale DiscussionSPC2 hr
Sep 2, 6:37 PM CDTMesoscale DiscussionSPC83 min
Sep 3, 5:41 AM CDTSevere Thunderstorm WarningDVN34 min
Sep 3, 6:10 AM CDTSevere Thunderstorm WarningDVN35 min
Sep 10, 1:20 AM CDTSevere Thunderstorm WarningDVN27 min
Sep 10, 1:46 AM CDTSevere Thunderstorm WarningDVN44 min
Sep 10, 1:52 AM CDTSevere Thunderstorm WarningDVN41 min
Sep 11, 3:33 PM CDTMesoscale DiscussionSPC117 min
Sep 11, 7:50 PM CDTSpecial Weather StatementDVN40 min
Sep 11, 10:08 PM CDTFlash Flood WarningDVN6 hr
Sep 12, 1:46 AM CDTFlash Flood WatchDVN23 hr
Sep 12, 1:12 PM CDTMesoscale DiscussionSPC2 hr
Sep 12, 6:04 PM CDTMesoscale DiscussionSPC116 min
Sep 12, 6:40 PM CDTSevere Thunderstorm WatchSPC7 hr
Sep 12, 7:16 PM CDTFlash Flood WarningDVN5 hr
Sep 12, 7:31 PM CDTSpecial Weather StatementDVN14 min
Sep 12, 8:28 PM CDTSpecial Weather StatementDVN47 min
Sep 12, 9:12 PM CDTFlash Flood WarningDVN6 hr
Sep 14, 3:01 AM CDTFlash Flood WatchDVN30 hr
Sep 15, 2:22 AM CDTSpecial Weather StatementDVN83 min
Sep 15, 3:19 AM CDTFlash Flood WarningDVN4 hr
Sep 15, 4:23 AM CDTFlash Flood WarningDVN3 hr
Sep 15, 9:07 PM CDTDense Fog AdvisoryDVN13 hr
Sep 19, 6:32 AM CDTSpecial Weather StatementDVN43 min
Sep 19, 8:13 AM CDTSpecial Weather StatementDVN62 min
Sep 19, 8:17 AM CDTFlash Flood WatchDVN7 hr
Sep 19, 8:50 AM CDTFlash Flood WarningDVN6 hr
Sep 19, 9:34 AM CDTFlash Flood WarningDVN6 hr
Sep 20, 4:07 AM CDTFlash Flood WatchDVN63 hr
Sep 27, 3:49 PM CDTSevere Thunderstorm WatchSPC7 hr
Sep 30, 11:29 AM CDTRiver Flood WatchDVN45 hr
Sep 30, 2:39 PM CDTFlash Flood WatchDVN39 hr
Oct 1, 9:19 AM CDTSpecial Weather StatementDVN41 min
Oct 1, 5:03 PM CDTMesoscale DiscussionSPC117 min
Oct 1, 6:05 PM CDTSevere Thunderstorm WatchSPC6 hr
Oct 1, 7:56 PM CDTSpecial Weather StatementDVN49 min
Oct 1, 8:08 PM CDTSevere Thunderstorm WarningDVN30 min
Oct 1, 8:09 PM CDTSevere Thunderstorm WarningDVN34 min
Oct 1, 8:54 PM CDTMesoscale DiscussionSPC96 min
Oct 1, 9:08 PM CDTFlash Flood WarningDVN6 hr
Oct 1, 9:39 PM CDTFlash Flood WarningDVN6 hr
Oct 1, 9:49 PM CDTSpecial Weather StatementDVN41 min
Oct 2, 8:46 AM CDTRiver Flood WarningDVN5 days
Oct 2, 8:46 AM CDTRiver Flood WarningDVN21 days
Oct 8, 10:25 AM CDTRiver Flood WarningDVN8 days
Oct 10, 4:08 AM CDTFreeze WatchDVN23 hr
Oct 11, 3:36 AM CDTFreeze WarningDVN29 hr
Oct 12, 9:16 AM CDTWind AdvisoryDVN9 hr
Oct 13, 1:52 PM CDTFrost AdvisoryDVN19 hr
Oct 19, 8:19 PM CDTDense Fog AdvisoryDVN15 hr
Oct 21, 10:48 AM CDTWind AdvisoryDVN28 hr
Oct 22, 11:03 AM CDTRiver Flood WatchDVN11 hr
Oct 30, 12:30 PM CDTWinter Weather AdvisoryDVN28 hr
Nov 10, 12:49 PM CSTWinter Weather AdvisoryDVN24 hr
Nov 20, 12:18 AM CSTDense Fog AdvisoryDVN10 hr
Nov 25, 2:47 PM CSTHigh Wind WatchDVN21 hr
Nov 26, 11:21 AM CSTHigh Wind WarningDVN31 hr
Dec 9, 2:02 AM CSTDense Fog AdvisoryDVN7 hr
Dec 9, 11:31 AM CSTWinter Weather AdvisoryDVN4 hr
Dec 9, 12:57 PM CSTSnow Squall WarningDVN48 min
Dec 24, 3:27 AM CSTDense Fog AdvisoryDVN7 hr
Dec 28, 9:46 AM CSTDense Fog AdvisoryDVN10 hr
Dec 30, 6:24 AM CSTSpecial Weather StatementDVN111 min

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 archive20182020

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.