Alert archive / California / Riverside County

Weather alerts in Riverside County, California, 2013

288 weather alerts in 2013, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Riverside County and its neighbors

Each county as a circle sized by its count in 2013. Tap one for its archive.

Alerts
288
Warnings
100
Watches
42
Advisories
136
Busiest month
September54 alerts
Busiest day
September 7, 201315 alerts

Over time

By month

Warning verification

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

Riverside County, 2013

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings10370%757%25 min
Flash flood warnings472155%4470%46 min

Each office's whole area, 2013

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Phoenix, AZ: severe thunderstorm warnings592656%6568%18 min
NWS Phoenix, AZ: flash flood warnings441957%3884%55 min
NWS San Diego, CA: tornado warnings010%
NWS San Diego, CA: severe thunderstorm warnings24675%2236%18 min
NWS San Diego, CA: flash flood warnings903759%7571%61 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, Pacific Time. Each opens its own page with the text, the map, the radar and the sounding.

IssuedProductOfficeLasted
Dec 31, 4:08 PM PSTFrost AdvisorySGX17 hr
Dec 31, 8:33 PM PSTWind AdvisorySGX72 hr
Jan 6, 6:41 PM PSTWind AdvisorySGX26 hr
Jan 8, 2:20 AM PSTHigh Wind WatchSGX25 hr
Jan 9, 2:57 AM PSTHigh Wind WarningSGX48 hr
Jan 9, 3:19 AM PSTWinter Weather AdvisorySGX39 hr
Jan 9, 2:09 PM PSTWinter Storm WarningSGX32 hr
Jan 9, 2:18 PM PSTWind AdvisorySGX32 hr
Jan 10, 10:07 AM PSTFrost AdvisorySGX22 hr
Jan 10, 10:07 AM PSTFreeze WatchSGX18 hr
Jan 11, 4:29 AM PSTFrost AdvisorySGX53 hr
Jan 11, 4:29 AM PSTFreeze WatchSGX13 hr
Jan 11, 1:40 PM PSTFreeze WarningSGX43 hr
Jan 12, 12:59 PM PSTHigh Wind WatchSGX25 hr
Jan 13, 1:51 AM PSTWind Chill AdvisorySGX32 hr
Jan 13, 2:56 AM PSTFreeze WarningSGX29 hr
Jan 13, 1:30 PM PSTHigh Wind WarningSGX50 hr
Jan 14, 2:22 AM PSTRed Flag WarningPSR16 hr
Jan 14, 8:10 PM PSTWind Chill AdvisorySGX13 hr
Jan 15, 2:49 AM PSTHigh Wind WatchSGX8 hr
Jan 15, 10:34 AM PSTWind AdvisorySGX59 hr
Jan 15, 12:45 PM PSTFrost AdvisorySGX20 hr
Jan 16, 9:43 PM PSTHigh Wind WarningSGX12 hr
Jan 16, 9:43 PM PSTWind AdvisorySGX24 hr
Jan 18, 7:37 AM PSTWind AdvisorySGX10 hr
Jan 26, 11:54 PM PSTDense Fog AdvisorySGX21 hr
Jan 27, 8:53 PM PSTWinter Weather AdvisorySGX9 hr
Jan 28, 3:04 AM PSTFrost AdvisorySGX30 hr
Feb 4, 2:07 PM PSTDense Fog AdvisorySGX19 hr
Feb 7, 2:40 AM PSTWind AdvisorySGX42 hr
Feb 7, 2:40 AM PSTWinter Weather AdvisorySGX9 hr
Feb 7, 5:20 AM PSTDense Fog AdvisorySGX4 hr
Feb 7, 11:58 AM PSTWinter Storm WarningSGX39 hr
Feb 8, 3:05 AM PSTWinter Weather AdvisorySGX24 hr
Feb 9, 10:44 AM PSTFrost AdvisorySGX21 hr
Feb 11, 8:51 AM PSTFrost AdvisorySGX23 hr
Feb 12, 8:33 AM PSTFrost AdvisorySGX23 hr
Feb 13, 9:06 PM PSTWind AdvisorySGX63 hr
Feb 15, 5:30 AM PSTHigh Wind WarningSGX8 hr
Feb 15, 5:30 AM PSTWind AdvisorySGX31 hr
Feb 16, 1:35 PM PSTWinter Storm WatchSGX38 hr
Feb 16, 8:19 PM PSTHigh Wind WatchSGX31 hr
Feb 18, 3:20 AM PSTWinter Storm WarningSGX57 hr
Feb 18, 3:20 AM PSTWinter Weather AdvisorySGX55 hr
Feb 18, 3:29 AM PSTHigh Wind WarningSGX58 hr
Feb 18, 3:29 AM PSTWind AdvisorySGX63 hr
Feb 21, 1:35 PM PSTFrost AdvisorySGX18 hr
Feb 22, 1:09 PM PSTHigh Wind WatchSGX14 hr
Feb 22, 1:09 PM PSTWind AdvisorySGX31 hr
Feb 23, 3:21 AM PSTHigh Wind WarningSGX37 hr
Feb 23, 3:21 AM PSTWind AdvisorySGX33 hr
Feb 23, 3:21 AM PSTWind AdvisorySGX41 hr
Feb 26, 1:02 PM PSTFrost AdvisorySGX13 hr
Feb 27, 8:10 AM PSTWind AdvisorySGX5 hr
Feb 27, 7:34 PM PSTWind AdvisorySGX62 hr
Feb 28, 12:34 PM PSTWind AdvisorySGX25 hr
Mar 2, 1:40 PM PSTWind AdvisorySGX42 hr
Mar 5, 2:55 AM PSTWind AdvisorySGX48 hr
Mar 5, 8:39 PM PSTWinter Storm WatchSGX17 hr
Mar 6, 1:39 PM PSTWinter Storm WarningSGX61 hr
Mar 7, 1:47 PM PSTWind AdvisorySGX38 hr
Mar 7, 1:47 PM PSTWinter Weather AdvisorySGX14 hr
Mar 8, 8:27 AM PSTAreal Flood AdvisorySGX6 hr
Mar 8, 9:56 PM PSTWinter Weather AdvisorySGX11 hr
Mar 9, 3:55 AM PSTWind AdvisorySGX32 hr
Mar 15, 12:51 PM PDTWind AdvisorySGX15 hr
Mar 16, 6:43 PM PDTWind AdvisorySGX7 hr
Mar 19, 7:16 PM PDTWind AdvisorySGX37 hr
Mar 20, 1:31 PM PDTHigh Wind WarningSGX18 hr
Mar 26, 1:35 PM PDTDense Fog AdvisorySGX19 hr
Mar 26, 1:35 PM PDTWind AdvisorySGX12 hr
Mar 27, 1:10 PM PDTWind AdvisorySGX12 hr
Mar 31, 8:35 AM PDTWind AdvisorySGX43 hr
Apr 4, 9:51 AM PDTWind AdvisorySGX65 hr
Apr 6, 3:13 AM PDTHigh Wind WatchSGX23 hr
Apr 6, 4:51 AM PDTFire Weather WatchPSR32 hr
Apr 7, 2:38 AM PDTHigh Wind WarningSGX42 hr
Apr 7, 2:38 AM PDTWind AdvisorySGX39 hr
Apr 7, 12:31 PM PDTRed Flag WarningPSR31 hr
Apr 8, 1:35 PM PDTWind AdvisorySGX48 hr
Apr 9, 3:25 AM PDTWind AdvisorySGX11 hr
Apr 9, 2:04 PM PDTWind AdvisorySGX23 hr
Apr 10, 10:09 AM PDTRed Flag WarningPSR9 hr
Apr 12, 1:21 PM PDTWind AdvisorySGX53 hr
Apr 13, 3:15 AM PDTHigh Wind WatchSGX24 hr
Apr 14, 3:42 AM PDTHigh Wind WarningSGX47 hr
Apr 15, 3:45 AM PDTWind AdvisorySGX40 hr
Apr 16, 3:31 AM PDTFire Weather WatchPSR23 hr
Apr 16, 9:00 PM PDTHigh Wind WatchSGX21 hr
Apr 17, 2:21 AM PDTRed Flag WarningPSR17 hr
Apr 17, 9:34 AM PDTFire Weather WatchSGX7 hr
Apr 17, 1:17 PM PDTWind AdvisorySGX24 hr
Apr 17, 4:45 PM PDTRed Flag WarningSGX48 hr
Apr 25, 9:17 AM PDTWind AdvisorySGX13 hr
Apr 29, 9:30 AM PDTFire Weather WatchSGX49 hr
Apr 29, 9:36 AM PDTWind AdvisorySGX17 hr
Apr 30, 7:30 AM PDTWind AdvisorySGX19 hr
Apr 30, 10:18 AM PDTRed Flag WarningSGX3 days
May 1, 3:34 AM PDTWind AdvisorySGX17 hr
May 1, 1:32 PM PDTHigh Wind WarningSGX24 hr
May 1, 2:18 PM PDTRed Flag WarningPSR21 hr
May 2, 1:35 PM PDTWind AdvisorySGX18 hr
May 4, 5:18 AM PDTWind AdvisorySGX69 hr
May 7, 1:38 PM PDTWind AdvisorySGX8 hr
May 9, 3:52 PM PDTAreal Flood AdvisorySGX3 hr
May 9, 6:59 PM PDTAreal Flood AdvisorySGX2 hr
May 14, 3:24 AM PDTWind AdvisorySGX24 hr
May 17, 6:44 AM PDTWind AdvisorySGX22 hr
May 21, 1:05 PM PDTWind AdvisorySGX12 hr
May 22, 2:17 AM PDTWind AdvisorySGX24 hr
May 23, 3:18 AM PDTWind AdvisorySGX24 hr
May 25, 1:45 PM PDTWind AdvisorySGX13 hr
May 26, 3:21 AM PDTWind AdvisorySGX72 hr
Jun 7, 4:00 AM PDTHeat AdvisorySGX16 hr
Jun 10, 9:57 AM PDTWind AdvisorySGX12 hr
Jun 12, 2:55 AM PDTWind AdvisorySGX24 hr
Jun 18, 3:01 AM PDTWind AdvisorySGX24 hr
Jun 19, 8:00 AM PDTWind AdvisorySGX19 hr
Jun 22, 9:15 AM PDTWind AdvisorySGX18 hr
Jun 23, 9:35 AM PDTWind AdvisorySGX17 hr
Jun 24, 8:05 AM PDTWind AdvisorySGX19 hr
Jun 25, 1:42 PM PDTExcessive Heat WatchSGX23 hr
Jun 26, 12:24 PM PDTExcessive Heat WarningSGX5 days
Jul 2, 3:38 AM PDTExcessive Heat WarningSGX23 hr
Jul 12, 11:55 AM PDTSpecial Weather StatementPSR65 min
Jul 12, 12:07 PM PDTAreal Flood AdvisoryPSR3 hr
Jul 20, 1:34 AM PDTFlash Flood WatchSGX67 hr
Jul 20, 2:52 AM PDTAreal Flood AdvisoryPSR3 hr
Jul 20, 1:16 PM PDTAreal Flood AdvisorySGX3 hr
Jul 21, 3:43 AM PDTFlash Flood WarningSGX2 hr
Jul 21, 5:47 AM PDTFlash Flood WarningSGX58 min
Jul 21, 9:41 AM PDTFlash Flood WarningSGX3 hr
Jul 21, 1:04 PM PDTFlash Flood WarningSGX3 hr
Jul 22, 11:33 AM PDTFlash Flood WarningSGX3 hr
Jul 22, 1:36 PM PDTFlash Flood WarningSGX3 hr
Jul 26, 2:50 AM PDTFlash Flood WatchSGX17 hr
Jul 26, 12:28 PM PDTAreal Flood AdvisoryPSR2 hr
Jul 26, 2:59 PM PDTAreal Flood AdvisorySGX3 hr
Aug 18, 2:03 PM PDTFlash Flood WarningSGX3 hr
Aug 18, 3:28 PM PDTFlash Flood WarningSGX3 hr
Aug 22, 7:10 PM PDTBlowing Dust AdvisorySGX5 hr
Aug 22, 8:13 PM PDTFlash Flood WarningSGX3 hr
Aug 23, 2:17 PM PDTAreal Flood AdvisorySGX118 min
Aug 23, 2:25 PM PDTFlash Flood WatchSGX4 days
Aug 23, 3:07 PM PDTAreal Flood AdvisorySGX113 min
Aug 23, 3:58 PM PDTFlash Flood WarningSGX3 hr
Aug 24, 12:43 PM PDTSevere Thunderstorm WarningPSR62 min
Aug 24, 12:57 PM PDTSpecial Weather StatementPSR48 min
Aug 24, 1:07 PM PDTFlash Flood WarningPSR113 min
Aug 24, 1:16 PM PDTSevere Thunderstorm WarningSGX74 min
Aug 24, 1:27 PM PDTFlash Flood WarningPSR2 hr
Aug 24, 2:06 PM PDTSevere Thunderstorm WarningPSR54 min
Aug 24, 2:38 PM PDTMesoscale DiscussionSPC67 min
Aug 24, 3:17 PM PDTFlash Flood WarningPSR3 hr
Aug 25, 1:42 PM PDTFlash Flood WarningSGX3 hr
Aug 25, 2:40 PM PDTAreal Flood AdvisoryPSR110 min
Aug 25, 2:40 PM PDTFlash Flood WarningSGX3 hr
Aug 25, 4:29 PM PDTFlash Flood WarningPSR5 hr
Aug 25, 5:06 PM PDTFlash Flood WarningSGX3 hr
Aug 26, 1:24 AM PDTFlash Flood WatchSGX17 hr
Aug 28, 1:10 PM PDTFlash Flood WatchSGX33 hr
Aug 28, 4:20 PM PDTSevere Thunderstorm WarningPSR40 min
Aug 29, 1:29 PM PDTFlash Flood WarningSGX5 hr
Aug 29, 1:38 PM PDTFlash Flood WarningSGX3 hr
Aug 29, 2:38 PM PDTAreal Flood AdvisorySGX3 hr
Aug 29, 2:51 PM PDTSevere Thunderstorm WarningSGX24 min
Aug 29, 2:56 PM PDTFlash Flood WarningSGX3 hr
Aug 29, 2:59 PM PDTSpecial Weather StatementPSR46 min
Aug 30, 3:59 AM PDTFlash Flood WatchSGX17 hr
Aug 30, 1:49 PM PDTFlash Flood WarningSGX4 hr
Aug 30, 2:13 PM PDTFlash Flood WarningSGX3 hr
Aug 30, 3:10 PM PDTAreal Flood AdvisorySGX3 hr
Aug 30, 3:53 PM PDTFlash Flood WarningSGX3 hr
Aug 30, 3:58 PM PDTAreal Flood AdvisorySGX3 hr
Aug 30, 4:24 PM PDTFlash Flood WarningSGX3 hr
Aug 30, 4:31 PM PDTSevere Thunderstorm WarningSGX44 min
Aug 31, 4:33 AM PDTFlash Flood WatchSGX13 hr
Aug 31, 11:45 AM PDTAreal Flood AdvisoryPSR2 hr
Aug 31, 12:17 PM PDTSevere Thunderstorm WarningPSR28 min
Aug 31, 1:33 PM PDTFlash Flood WarningSGX3 hr
Sep 1, 1:58 AM PDTFlash Flood WatchSGX16 hr
Sep 2, 3:32 PM PDTFlash Flood WarningSGX3 hr
Sep 2, 5:10 PM PDTAreal Flood AdvisoryPSR110 min
Sep 2, 6:21 PM PDTSevere Thunderstorm WarningPSR54 min
Sep 2, 6:44 PM PDTFlash Flood WarningPSR3 hr
Sep 3, 2:17 PM PDTFlash Flood WarningSGX3 hr
Sep 3, 2:56 PM PDTAreal Flood AdvisorySGX3 hr
Sep 3, 4:28 PM PDTFlash Flood WarningSGX2 hr
Sep 4, 11:24 AM PDTFlash Flood WatchSGX8 hr
Sep 4, 12:31 PM PDTFlash Flood WarningSGX4 hr
Sep 4, 1:26 PM PDTFlash Flood WarningSGX3 hr
Sep 4, 1:58 PM PDTFlash Flood WarningSGX3 hr
Sep 5, 12:51 PM PDTHeat AdvisorySGX30 hr
Sep 5, 2:08 PM PDTFlash Flood WarningSGX3 hr
Sep 5, 2:34 PM PDTFlash Flood WarningSGX3 hr
Sep 5, 2:51 PM PDTFlash Flood WarningSGX3 hr
Sep 5, 3:10 PM PDTFlash Flood WarningSGX3 hr
Sep 5, 4:29 PM PDTSpecial Weather StatementPSR46 min
Sep 5, 5:22 PM PDTSpecial Weather StatementPSR38 min
Sep 6, 2:35 AM PDTFlash Flood WatchSGX16 hr
Sep 6, 1:15 PM PDTFlash Flood WarningSGX2 hr
Sep 6, 1:39 PM PDTFlash Flood WarningSGX111 min
Sep 6, 2:33 PM PDTSevere Thunderstorm WarningSGX27 min
Sep 6, 2:39 PM PDTFlash Flood WarningSGX2 hr
Sep 6, 3:29 PM PDTSpecial Weather StatementPSR46 min
Sep 6, 4:18 PM PDTAreal Flood AdvisoryPSR3 hr
Sep 7, 5:26 AM PDTFlash Flood WatchSGX15 hr
Sep 7, 12:27 PM PDTFlash Flood WarningSGX3 hr
Sep 7, 12:34 PM PDTAreal Flood AdvisoryPSR116 min
Sep 7, 1:06 PM PDTFlash Flood WarningPSR84 min
Sep 7, 1:29 PM PDTFlash Flood WarningSGX3 hr
Sep 7, 2:07 PM PDTAreal Flood AdvisorySGX3 hr
Sep 7, 2:33 PM PDTFlash Flood WarningPSR117 min
Sep 7, 2:49 PM PDTFlash Flood WarningSGX3 hr
Sep 7, 3:00 PM PDTSpecial Weather StatementPSR45 min
Sep 7, 3:30 PM PDTAreal Flood AdvisoryPSR3 hr
Sep 7, 3:38 PM PDTAreal Flood AdvisorySGX3 hr
Sep 7, 3:46 PM PDTFlash Flood WarningSGX3 hr
Sep 7, 4:32 PM PDTAreal Flood WarningPSR4 hr
Sep 7, 4:33 PM PDTFlash Flood WarningPSR3 hr
Sep 7, 4:44 PM PDTAreal Flood AdvisorySGX91 min
Sep 8, 2:35 PM PDTSevere Thunderstorm WarningPSR55 min
Sep 8, 2:47 PM PDTAreal Flood AdvisoryPSR3 hr
Sep 8, 2:57 PM PDTFlash Flood WarningPSR93 min
Sep 8, 2:59 PM PDTSpecial Weather StatementPSR61 min
Sep 8, 4:38 PM PDTAreal Flood AdvisorySGX112 min
Sep 9, 1:02 AM PDTSpecial Weather StatementSGX58 min
Sep 9, 5:42 PM PDTAreal Flood AdvisorySGX3 hr
Sep 21, 1:10 PM PDTWind AdvisorySGX19 hr
Sep 23, 1:12 PM PDTHigh Wind WatchSGX24 hr
Sep 24, 12:57 PM PDTHigh Wind WarningSGX43 hr
Sep 26, 8:02 AM PDTWind AdvisorySGX9 hr
Sep 26, 1:36 PM PDTWind AdvisorySGX22 hr
Sep 27, 12:00 PM PDTRed Flag WarningSGX30 hr
Oct 1, 9:00 AM PDTFire Weather WatchSGX29 hr
Oct 2, 3:06 AM PDTFire Weather WatchPSR34 hr
Oct 2, 1:41 PM PDTHigh Wind WatchSGX24 hr
Oct 2, 2:05 PM PDTRed Flag WarningSGX4 days
Oct 3, 12:38 PM PDTRed Flag WarningPSR30 hr
Oct 3, 1:41 PM PDTHigh Wind WarningSGX48 hr
Oct 4, 3:27 AM PDTRed Flag WarningSGX63 hr
Oct 5, 3:25 AM PDTWind AdvisorySGX33 hr
Oct 8, 3:29 AM PDTHigh Wind WatchSGX10 hr
Oct 8, 3:29 AM PDTWind AdvisorySGX23 hr
Oct 8, 3:29 AM PDTWinter Weather AdvisorySGX47 hr
Oct 8, 1:06 PM PDTHigh Wind WarningSGX37 hr
Oct 9, 7:51 PM PDTAreal Flood AdvisorySGX3 hr
Oct 15, 1:55 PM PDTWind AdvisorySGX22 hr
Oct 22, 1:30 PM PDTDense Fog AdvisorySGX20 hr
Oct 26, 2:39 AM PDTHigh Wind WatchSGX24 hr
Oct 27, 2:36 AM PDTHigh Wind WarningSGX48 hr
Oct 27, 2:04 PM PDTWinter Weather AdvisorySGX43 hr
Nov 4, 12:30 PM PSTRed Flag WarningSGX30 hr
Nov 4, 11:20 PM PSTWind AdvisorySGX19 hr
Nov 13, 1:17 PM PSTWind AdvisorySGX4 days
Nov 20, 4:21 AM PSTWinter Storm WatchSGX10 hr
Nov 20, 2:11 PM PSTWinter Storm WarningSGX69 hr
Nov 21, 3:13 AM PSTWind AdvisorySGX43 hr
Nov 21, 1:38 PM PSTFlash Flood WatchSGX32 hr
Nov 21, 3:03 PM PSTAreal Flood AdvisorySGX3 hr
Nov 21, 6:15 PM PSTAreal Flood AdvisorySGX3 hr
Nov 26, 9:46 PM PSTWind AdvisorySGX3 hr
Dec 1, 12:00 PM PSTHigh Wind WatchSGX24 hr
Dec 2, 12:05 PM PSTHigh Wind WarningSGX44 hr
Dec 4, 1:35 PM PSTFrost AdvisorySGX19 hr
Dec 5, 12:49 PM PSTHigh Wind WatchSGX20 hr
Dec 5, 1:31 PM PSTWinter Storm WatchSGX24 hr
Dec 5, 5:24 PM PSTFrost AdvisorySGX16 hr
Dec 6, 9:08 AM PSTHigh Wind WarningSGX40 hr
Dec 6, 1:09 PM PSTWinter Storm WarningSGX32 hr
Dec 8, 2:39 AM PSTFrost AdvisorySGX30 hr
Dec 8, 2:39 AM PSTHigh Wind WatchSGX11 hr
Dec 8, 2:06 PM PSTHigh Wind WarningSGX44 hr
Dec 8, 2:06 PM PSTWind AdvisorySGX44 hr
Dec 9, 9:11 AM PSTFrost AdvisorySGX24 hr
Dec 10, 10:02 AM PSTWind AdvisorySGX4 hr
Dec 10, 9:28 PM PSTFrost AdvisorySGX12 hr
Dec 12, 1:53 PM PSTFire Weather WatchSGX24 hr
Dec 13, 3:02 AM PSTWind AdvisorySGX3 days
Dec 13, 1:30 PM PSTRed Flag WarningSGX53 hr
Dec 14, 3:03 AM PSTHigh Wind WarningSGX30 hr
Dec 18, 2:15 AM PSTWinter Weather AdvisorySGX47 hr
Dec 18, 2:16 AM PSTWind AdvisorySGX35 hr
Dec 19, 3:08 PM PSTAreal Flood AdvisorySGX5 hr
Dec 24, 1:10 PM PSTWind AdvisorySGX71 hr
Dec 27, 1:00 PM PSTHigh Wind WatchSGX24 hr
Dec 28, 12:44 PM PSTHigh Wind WarningSGX29 hr
Dec 28, 12:44 PM PSTWind AdvisorySGX29 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 archive20122014

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.