Alert archive / South Dakota / Jerauld County

Weather alerts in Jerauld County, South Dakota, 2019

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

Jerauld County and its neighbors

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

Alerts
123
Warnings
31
Watches
22
Advisories
40
Busiest month
July35 alerts
Busiest day
July 20, 20196 alerts

Over time

By month

Warning verification

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

Jerauld County, 2019

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings151127%1100%18 min
Flash flood warnings110%0

Each office's whole area, 2019

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Sioux Falls, SD: tornado warnings371073%2650%7 min
NWS Sioux Falls, SD: severe thunderstorm warnings17210738%25188%18 min
NWS Sioux Falls, SD: flash flood warnings321941%2681%73 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 7, 2:44 PM CSTWind AdvisoryFSD30 hr
Jan 16, 3:00 PM CSTWinter Weather AdvisoryFSD57 hr
Jan 17, 2:29 PM CSTWinter Storm WarningFSD34 hr
Jan 18, 2:50 PM CSTWind Chill AdvisoryFSD19 hr
Jan 23, 2:27 PM CSTWind Chill AdvisoryFSD43 hr
Jan 23, 2:27 PM CSTWinter Weather AdvisoryFSD20 hr
Jan 26, 2:21 PM CSTHigh Wind WatchFSD13 hr
Jan 27, 3:34 AM CSTWind Chill WatchFSD24 hr
Jan 27, 3:48 AM CSTHigh Wind WarningFSD26 hr
Jan 27, 3:48 AM CSTWind AdvisoryFSD32 hr
Jan 28, 3:34 AM CSTWind Chill WarningFSD3 days
Jan 28, 3:34 AM CSTWind Chill AdvisoryFSD35 hr
Jan 28, 3:34 AM CSTWind Chill AdvisoryFSD3 days
Feb 4, 3:22 AM CSTWind Chill AdvisoryFSD27 hr
Feb 5, 3:25 PM CSTWinter Weather AdvisoryFSD57 hr
Feb 7, 3:19 AM CSTWind Chill AdvisoryFSD54 hr
Feb 14, 3:40 AM CSTWind Chill AdvisoryFSD29 hr
Feb 15, 2:55 PM CSTWinter Weather AdvisoryFSD51 hr
Feb 21, 3:52 AM CSTWinter Weather AdvisoryFSD3 days
Feb 24, 2:53 PM CSTWind Chill AdvisoryFSD17 hr
Mar 2, 3:59 AM CSTWind Chill AdvisoryFSD56 hr
Mar 2, 3:19 PM CSTWind Chill WarningFSD21 hr
Mar 3, 3:10 PM CSTWinter Weather AdvisoryFSD27 hr
Mar 7, 3:38 AM CSTWinter Storm WatchFSD36 hr
Mar 8, 3:10 AM CSTWinter Storm WarningFSD45 hr
Mar 8, 3:16 PM CSTWinter Weather AdvisoryFSD38 hr
Mar 11, 3:03 PM CDTWinter Storm WatchFSD49 hr
Mar 11, 3:13 PM CDTFlood WatchFSD72 hr
Mar 12, 3:21 PM CDTWinter Storm WarningFSD42 hr
Mar 13, 4:03 PM CDTWinter Weather AdvisoryFSD27 hr
Mar 13, 4:06 PM CDTWind AdvisoryFSD36 hr
Mar 14, 8:51 AM CDTBlizzard WarningFSD6 hr
Apr 8, 3:46 AM CDTWinter Storm WatchFSD57 hr
Apr 9, 3:52 AM CDTBlizzard WarningFSD3 days
Apr 11, 2:34 AM CDTMesoscale DiscussionSPC6 hr
Apr 11, 9:38 AM CDTMesoscale DiscussionSPC6 hr
Apr 11, 8:28 PM CDTWinter Weather AdvisoryFSD17 hr
Apr 26, 2:44 PM CDTWinter Weather AdvisoryFSD22 hr
Apr 27, 5:14 AM CDTMesoscale DiscussionSPC6 hr
May 9, 3:38 AM CDTFrost AdvisoryFSD28 hr
May 17, 4:38 PM CDTSevere Thunderstorm WatchSPC7 hr
May 17, 7:53 PM CDTMesoscale DiscussionSPC2 hr
May 19, 3:22 AM CDTFrost AdvisoryFSD29 hr
May 20, 2:58 PM CDTWind AdvisoryFSD32 hr
May 31, 3:45 PM CDTMesoscale DiscussionSPC2 hr
Jun 8, 3:47 PM CDTMesoscale DiscussionSPC88 min
Jun 21, 2:06 PM CDTMesoscale DiscussionSPC84 min
Jun 27, 12:00 AM CDTSevere Thunderstorm WatchSPC7 hr
Jun 27, 2:15 AM CDTMesoscale DiscussionSPC2 hr
Jun 27, 3:15 PM CDTHeat AdvisoryFSD29 hr
Jun 28, 2:02 PM CDTHeat AdvisoryFSD31 hr
Jun 29, 11:59 AM CDTExcessive Heat WarningFSD9 hr
Jun 30, 5:19 PM CDTSevere Thunderstorm WatchSPC6 hr
Jun 30, 7:30 PM CDTMesoscale DiscussionSPC90 min
Jun 30, 9:40 PM CDTMesoscale DiscussionSPC65 min
Jul 3, 3:45 PM CDTFlash Flood WarningFSD2 hr
Jul 3, 3:47 PM CDTSevere Thunderstorm WarningFSD28 min
Jul 3, 4:13 PM CDTSevere Thunderstorm WarningFSD32 min
Jul 3, 5:10 PM CDTMesoscale DiscussionSPC2 hr
Jul 3, 7:09 PM CDTSevere Thunderstorm WatchSPC7 hr
Jul 3, 10:13 PM CDTMesoscale DiscussionSPC92 min
Jul 4, 11:32 PM CDTSevere Thunderstorm WatchSPC4 hr
Jul 5, 1:43 AM CDTMesoscale DiscussionSPC2 hr
Jul 12, 9:48 AM CDTSevere Thunderstorm WarningFSD27 min
Jul 12, 10:05 AM CDTMesoscale DiscussionSPC85 min
Jul 13, 7:21 AM CDTSevere Thunderstorm WarningFSD39 min
Jul 13, 7:56 AM CDTSevere Thunderstorm WarningFSD34 min
Jul 13, 8:21 AM CDTSevere Thunderstorm WarningFSD39 min
Jul 13, 2:12 PM CDTMesoscale DiscussionSPC2 hr
Jul 13, 7:15 PM CDTMesoscale DiscussionSPC90 min
Jul 14, 2:56 AM CDTHeat AdvisoryFSD18 hr
Jul 14, 3:33 PM CDTHeat AdvisoryFSD29 hr
Jul 15, 3:12 PM CDTMesoscale DiscussionSPC93 min
Jul 16, 11:34 PM CDTMesoscale DiscussionSPC86 min
Jul 17, 4:14 AM CDTMesoscale DiscussionSPC91 min
Jul 17, 5:19 PM CDTHeat AdvisoryFSD28 hr
Jul 18, 4:09 PM CDTHeat AdvisoryFSD28 hr
Jul 20, 5:02 AM CDTMesoscale DiscussionSPC88 min
Jul 20, 5:23 AM CDTSevere Thunderstorm WarningFSD37 min
Jul 20, 5:36 AM CDTSevere Thunderstorm WarningFSD24 min
Jul 20, 5:51 AM CDTSevere Thunderstorm WatchSPC5 hr
Jul 20, 5:55 AM CDTSevere Thunderstorm WarningFSD50 min
Jul 20, 6:52 AM CDTSevere Thunderstorm WarningFSD38 min
Jul 28, 4:46 PM CDTMesoscale DiscussionSPC59 min
Jul 28, 6:40 PM CDTSevere Thunderstorm WarningFSD35 min
Jul 28, 7:13 PM CDTSevere Thunderstorm WarningFSD47 min
Jul 28, 7:27 PM CDTSevere Thunderstorm WatchSPC4 hr
Jul 28, 7:31 PM CDTSevere Thunderstorm WarningFSD44 min
Aug 2, 11:59 AM CDTAreal Flood WarningFSD3 hr
Aug 2, 2:44 PM CDTAreal Flood WarningFSD2 hr
Aug 6, 6:19 PM CDTMesoscale DiscussionSPC116 min
Aug 6, 8:19 PM CDTSevere Thunderstorm WatchSPC9 hr
Aug 9, 12:22 PM CDTFlood WatchFSD12 hr
Aug 9, 2:09 PM CDTTornado WatchSPC7 hr
Aug 9, 3:43 PM CDTMesoscale DiscussionSPC92 min
Aug 9, 6:03 PM CDTMesoscale DiscussionSPC57 min
Aug 9, 6:59 PM CDTMesoscale DiscussionSPC2 hr
Aug 15, 1:18 PM CDTMesoscale DiscussionSPC87 min
Aug 15, 3:09 PM CDTSevere Thunderstorm WatchSPC6 hr
Aug 17, 5:12 PM CDTMesoscale DiscussionSPC2 hr
Aug 17, 6:14 PM CDTSevere Thunderstorm WatchSPC8 hr
Aug 17, 7:43 PM CDTSevere Thunderstorm WarningFSD47 min
Aug 17, 8:06 PM CDTSevere Thunderstorm WarningFSD39 min
Aug 17, 8:26 PM CDTMesoscale DiscussionSPC94 min
Sep 11, 4:07 AM CDTFlash Flood WatchFSD26 hr
Sep 11, 5:43 PM CDTMesoscale DiscussionSPC2 hr
Sep 11, 8:03 PM CDTSevere Thunderstorm WatchSPC7 hr
Sep 21, 1:22 AM CDTMesoscale DiscussionSPC83 min
Oct 3, 3:19 PM CDTFrost AdvisoryFSD18 hr
Oct 4, 3:31 PM CDTWind AdvisoryFSD27 hr
Oct 10, 3:22 AM CDTWinter Weather AdvisoryFSD67 hr
Oct 20, 9:20 PM CDTWind AdvisoryFSD43 hr
Nov 25, 2:45 PM CSTWinter Weather AdvisoryFSD36 hr
Nov 27, 5:56 PM CSTWinter Weather AdvisoryFSD4 days
Nov 28, 3:20 AM CSTWinter Storm WatchFSD35 hr
Nov 29, 11:52 AM CSTWinter Storm WarningFSD48 hr
Dec 13, 9:07 AM CSTDense Fog AdvisoryFSD7 hr
Dec 24, 2:24 PM CSTDense Fog AdvisoryFSD34 hr
Dec 26, 3:10 PM CSTWinter Storm WatchFSD24 hr
Dec 27, 3:18 PM CSTWinter Storm WarningFSD63 hr
Dec 27, 3:18 PM CSTWinter Weather AdvisoryFSD3 days
Dec 29, 12:02 PM CSTBlizzard WarningFSD12 hr
Dec 29, 12:02 PM CSTWinter Storm WarningFSD18 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 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.