Alert archive / South Dakota / Jerauld County

Weather alerts in Jerauld County, South Dakota, 2023

93 weather alerts in 2023, 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 2023. Tap one for its archive.

Alerts
93
Warnings
19
Watches
14
Advisories
37
Busiest month
July24 alerts
Busiest day
July 26, 20238 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 Jerauld County in 2023 had a tornado report inside them.

Jerauld County, 2023

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings10100%0
Severe thunderstorm warnings8538%3100%23 min
Flash flood warnings00

Each office's whole area, 2023

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Sioux Falls, SD: tornado warnings23674%1650%13 min
NWS Sioux Falls, SD: severe thunderstorm warnings22812645%28282%18 min
NWS Sioux Falls, SD: flash flood warnings9367%1275%47 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 1, 2:10 PM CSTWinter Storm WarningFSD61 hr
Jan 3, 6:09 AM CSTMesoscale DiscussionSPC6 hr
Jan 6, 10:05 PM CSTDense Fog AdvisoryFSD14 hr
Jan 8, 5:04 AM CSTDense Fog AdvisoryFSD4 hr
Jan 12, 6:49 PM CSTDense Fog AdvisoryFSD17 hr
Jan 20, 10:08 PM CSTDense Fog AdvisoryFSD5 hr
Jan 21, 5:56 PM CSTDense Fog AdvisoryFSD18 hr
Jan 26, 3:40 AM CSTWind AdvisoryFSD29 hr
Jan 27, 3:12 AM CSTWinter Weather AdvisoryFSD39 hr
Jan 28, 1:41 PM CSTWind Chill AdvisoryFSD20 hr
Jan 29, 1:48 PM CSTWind Chill AdvisoryFSD22 hr
Jan 30, 2:28 PM CSTWind Chill AdvisoryFSD20 hr
Feb 9, 2:50 AM CSTWind AdvisoryFSD14 hr
Feb 14, 2:51 AM CSTWinter Weather AdvisoryFSD30 hr
Feb 19, 2:50 PM CSTWinter Storm WatchFSD36 hr
Feb 20, 3:01 PM CSTWinter Weather AdvisoryFSD38 hr
Feb 21, 2:52 AM CSTBlizzard WarningFSD57 hr
Feb 23, 2:25 PM CSTWind Chill AdvisoryFSD20 hr
Feb 27, 2:19 AM CSTDense Fog AdvisoryFSD10 hr
Feb 28, 3:00 PM CSTWind AdvisoryFSD21 hr
Mar 8, 3:30 AM CSTWinter Weather AdvisoryFSD45 hr
Mar 11, 2:41 PM CSTWind AdvisoryFSD18 hr
Mar 15, 3:26 PM CDTWinter Weather AdvisoryFSD40 hr
Mar 29, 2:39 PM CDTWinter Storm WatchFSD24 hr
Mar 30, 3:01 PM CDTBlizzard WarningFSD38 hr
Mar 30, 3:01 PM CDTWinter Weather AdvisoryFSD38 hr
Mar 31, 9:06 AM CDTMesoscale DiscussionSPC6 hr
Apr 2, 3:03 AM CDTWinter Storm WatchFSD36 hr
Apr 3, 2:42 PM CDTBlizzard WarningFSD31 hr
Apr 3, 2:42 PM CDTWinter Weather AdvisoryFSD45 hr
Apr 10, 3:30 AM CDTFire Weather WatchFSD10 hr
Apr 10, 1:44 PM CDTRed Flag WarningFSD31 hr
Apr 18, 1:09 PM CDTFire Weather WatchFSD4 min
Apr 18, 1:13 PM CDTRed Flag WarningFSD8 hr
May 6, 5:32 PM CDTMesoscale DiscussionSPC88 min
Jun 22, 1:32 PM CDTMesoscale DiscussionSPC3 hr
Jun 23, 9:07 PM CDTMesoscale DiscussionSPC53 min
Jun 23, 9:24 PM CDTSevere Thunderstorm WatchSPC8 hr
Jun 23, 11:18 PM CDTMesoscale DiscussionSPC117 min
Jun 24, 1:33 AM CDTSevere Thunderstorm WarningFSD27 min
Jun 24, 2:06 AM CDTSevere Thunderstorm WarningFSD39 min
Jun 27, 7:26 PM CDTMesoscale DiscussionSPC2 hr
Jul 3, 11:29 PM CDTMesoscale DiscussionSPC91 min
Jul 4, 1:25 AM CDTMesoscale DiscussionSPC95 min
Jul 11, 11:34 PM CDTMesoscale DiscussionSPC56 min
Jul 12, 12:10 AM CDTSevere Thunderstorm WatchSPC7 hr
Jul 12, 2:17 AM CDTSevere Thunderstorm WarningFSD43 min
Jul 13, 1:58 PM CDTMesoscale DiscussionSPC2 hr
Jul 13, 4:02 PM CDTSevere Thunderstorm WatchSPC5 hr
Jul 18, 5:42 PM CDTMesoscale DiscussionSPC2 hr
Jul 18, 6:20 PM CDTSevere Thunderstorm WatchSPC8 hr
Jul 18, 11:27 PM CDTMesoscale DiscussionSPC93 min
Jul 24, 1:28 AM CDTMesoscale DiscussionSPC3 hr
Jul 25, 6:43 PM CDTMesoscale DiscussionSPC92 min
Jul 25, 7:14 PM CDTSevere Thunderstorm WatchSPC6 hr
Jul 25, 8:45 PM CDTSevere Thunderstorm Warning Considerable damage threatFSD45 min
Jul 25, 8:52 PM CDTTornado WarningFSD38 min
Jul 25, 9:02 PM CDTMesoscale DiscussionSPC88 min
Jul 25, 9:28 PM CDTSevere Thunderstorm Warning Considerable damage threatFSD47 min
Jul 26, 4:14 AM CDTHeat AdvisoryFSD16 hr
Jul 26, 2:50 PM CDTHeat AdvisoryFSD29 hr
Jul 26, 4:31 PM CDTMesoscale DiscussionSPC89 min
Jul 30, 11:15 AM CDTMesoscale DiscussionSPC2 hr
Jul 30, 11:34 AM CDTSevere Thunderstorm WarningFSD41 min
Jul 30, 12:06 PM CDTSevere Thunderstorm WarningFSD24 min
Jul 30, 1:03 PM CDTSevere Thunderstorm WarningFSD42 min
Aug 10, 3:50 PM CDTMesoscale DiscussionSPC55 min
Aug 10, 4:56 PM CDTSevere Thunderstorm WatchSPC5 hr
Aug 10, 6:25 PM CDTMesoscale DiscussionSPC2 hr
Aug 19, 2:45 PM CDTExcessive Heat WatchFSD24 hr
Aug 20, 2:41 PM CDTExcessive Heat WarningFSD4 days
Aug 20, 2:41 PM CDTHeat AdvisoryFSD20 hr
Aug 24, 2:19 AM CDTDense Fog AdvisoryFSD8 hr
Sep 1, 2:09 PM CDTHeat AdvisoryFSD53 hr
Sep 26, 6:12 AM CDTDense Fog AdvisoryFSD4 hr
Sep 27, 4:19 AM CDTDense Fog AdvisoryFSD7 hr
Sep 30, 4:27 AM CDTDense Fog AdvisoryFSD5 hr
Oct 5, 3:08 AM CDTFreeze WatchFSD24 hr
Oct 5, 2:26 PM CDTWind AdvisoryFSD23 hr
Oct 6, 2:48 AM CDTFreeze WarningFSD30 hr
Oct 9, 3:04 PM CDTFrost AdvisoryFSD18 hr
Oct 11, 3:38 PM CDTWind AdvisoryFSD47 hr
Oct 17, 8:25 PM CDTWind AdvisoryFSD20 hr
Oct 30, 2:37 PM CDTWind AdvisoryFSD19 hr
Nov 13, 2:28 PM CSTRed Flag WarningFSD4 hr
Nov 25, 1:22 PM CSTWind AdvisoryFSD24 hr
Dec 8, 1:57 PM CSTWind AdvisoryFSD28 hr
Dec 23, 2:51 PM CSTWinter Storm WatchFSD13 hr
Dec 24, 3:27 AM CSTBlizzard WarningFSD47 hr
Dec 25, 3:41 AM CSTWinter Weather AdvisoryFSD50 hr
Dec 25, 7:00 AM CSTMesoscale DiscussionSPC6 hr
Dec 25, 3:31 PM CSTMesoscale DiscussionSPC4 hr
Dec 25, 7:56 PM CSTMesoscale DiscussionSPC5 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 archive20222024

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.