Alert archive / Nebraska / Greeley County

Weather alerts in Greeley County, Nebraska, 2010

188 weather alerts in 2010, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Greeley County and its neighbors

Each county as a circle sized by its count in 2010. Tap one for its archive.

Alerts
188
Warnings
27
Watches
36
Advisories
51
Busiest month
June75 alerts
Busiest day
June 10, 201010 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 Greeley County in 2010 had a tornado report inside them.

Greeley County, 2010

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings10100%0
Severe thunderstorm warnings181044%3100%26 min
Flash flood warnings2150%1100%93 min

Each office's whole area, 2010

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Hastings, NE: tornado warnings26581%6100%12 min
NWS Hastings, NE: severe thunderstorm warnings30815749%32886%20 min
NWS Hastings, NE: flash flood warnings20860%1173%78 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, 9:27 PM CSTWind Chill AdvisoryGID13 hr
Jan 5, 3:42 AM CSTWinter Weather AdvisoryGID62 hr
Jan 6, 3:45 AM CSTWind Chill WatchGID12 hr
Jan 6, 3:24 PM CSTWind Chill WarningGID45 hr
Jan 8, 3:05 AM CSTWind Chill AdvisoryGID32 hr
Jan 11, 7:57 PM CSTFreezing Fog AdvisoryGID14 hr
Jan 16, 7:12 PM CSTDense Fog AdvisoryGID15 hr
Jan 17, 5:16 PM CSTDense Fog AdvisoryGID30 hr
Jan 18, 11:25 PM CSTFreezing Fog AdvisoryGID13 hr
Jan 19, 4:23 AM CSTWinter Weather AdvisoryGID28 hr
Jan 19, 7:28 PM CSTMesoscale DiscussionSPC5 hr
Jan 20, 10:25 AM CSTDense Fog AdvisoryGID24 hr
Jan 21, 7:24 AM CSTFreezing Fog AdvisoryGID3 hr
Jan 21, 5:53 PM CSTFreezing Fog AdvisoryGID19 hr
Jan 22, 9:41 AM CSTDense Fog AdvisoryGID12 hr
Jan 24, 4:04 AM CSTWind AdvisoryGID14 hr
Jan 24, 9:48 PM CSTWind AdvisoryGID20 hr
Feb 3, 3:50 PM CSTWinter Weather AdvisoryGID44 hr
Feb 14, 4:07 AM CSTWind AdvisoryGID14 hr
Feb 28, 12:29 AM CSTFreezing Fog AdvisoryGID9 hr
Mar 7, 3:30 PM CSTFlood WatchGID61 hr
Mar 8, 8:47 AM CSTDense Fog AdvisoryGID3 hr
Mar 31, 3:32 PM CDTFire Weather WatchGID12 hr
Apr 1, 3:32 AM CDTRed Flag WarningGID16 hr
Apr 1, 11:31 PM CDTMesoscale DiscussionSPC89 min
Apr 7, 4:01 AM CDTWind AdvisoryGID14 hr
Apr 12, 2:50 PM CDTWind AdvisoryGID33 hr
Apr 23, 11:43 AM CDTMesoscale DiscussionSPC62 min
Apr 23, 1:18 PM CDTTornado WatchSPC7 hr
Apr 23, 4:10 PM CDTMesoscale DiscussionSPC95 min
Apr 23, 7:02 PM CDTMesoscale DiscussionSPC88 min
Apr 23, 9:22 PM CDTMesoscale DiscussionSPC53 min
Apr 28, 10:30 AM CDTWind AdvisoryGID9 hr
May 6, 3:26 PM CDTFreeze WatchGID24 hr
May 7, 4:13 AM CDTWind AdvisoryGID15 hr
May 7, 3:16 PM CDTFreeze WarningGID17 hr
May 10, 2:32 AM CDTMesoscale DiscussionSPC88 min
May 18, 5:14 AM CDTDense Fog AdvisoryGID4 hr
May 22, 3:57 AM CDTWind AdvisoryGID17 hr
May 23, 3:36 PM CDTWind AdvisoryGID29 hr
May 24, 6:03 PM CDTMesoscale DiscussionSPC87 min
May 24, 7:17 PM CDTSevere Thunderstorm WatchSPC6 hr
May 24, 9:11 PM CDTMesoscale DiscussionSPC64 min
May 24, 9:33 PM CDTSpecial Weather StatementGID27 min
May 24, 9:57 PM CDTSpecial Weather StatementGID48 min
May 24, 10:06 PM CDTSevere Thunderstorm WarningGID21 min
Jun 1, 5:53 AM CDTMesoscale DiscussionSPC97 min
Jun 1, 8:46 AM CDTSevere Thunderstorm WatchSPC7 hr
Jun 1, 10:21 AM CDTMesoscale DiscussionSPC54 min
Jun 1, 12:37 PM CDTMesoscale DiscussionSPC53 min
Jun 1, 1:53 PM CDTTornado WatchSPC9 hr
Jun 1, 5:39 PM CDTMesoscale DiscussionSPC96 min
Jun 3, 5:57 PM CDTSevere Thunderstorm WatchSPC6 hr
Jun 3, 6:15 PM CDTSevere Thunderstorm WarningGID30 min
Jun 3, 6:24 PM CDTSpecial Weather StatementGID36 min
Jun 3, 6:28 PM CDTTornado WarningGID32 min
Jun 3, 7:50 PM CDTSevere Thunderstorm WarningGID40 min
Jun 3, 8:30 PM CDTSevere Thunderstorm WarningGID45 min
Jun 3, 9:15 PM CDTMesoscale DiscussionSPC60 min
Jun 5, 12:26 AM CDTSevere Thunderstorm WarningGID49 min
Jun 5, 12:31 AM CDTMesoscale DiscussionSPC29 min
Jun 5, 12:45 AM CDTSevere Thunderstorm WatchSPC7 hr
Jun 5, 1:06 AM CDTSevere Thunderstorm WarningGID39 min
Jun 5, 1:19 AM CDTMesoscale DiscussionSPC3 hr
Jun 5, 2:29 AM CDTMesoscale DiscussionSPC2 hr
Jun 6, 9:03 PM CDTMesoscale DiscussionSPC87 min
Jun 7, 7:23 PM CDTMesoscale DiscussionSPC2 hr
Jun 7, 9:42 PM CDTMesoscale DiscussionSPC2 hr
Jun 7, 10:31 PM CDTSevere Thunderstorm WatchSPC7 hr
Jun 7, 11:37 PM CDTMesoscale DiscussionSPC113 min
Jun 8, 12:42 AM CDTSevere Thunderstorm WarningGID48 min
Jun 8, 1:21 AM CDTSevere Thunderstorm WarningGID39 min
Jun 10, 1:41 AM CDTMesoscale DiscussionSPC2 hr
Jun 10, 3:16 AM CDTSevere Thunderstorm WatchSPC7 hr
Jun 10, 3:49 AM CDTSevere Thunderstorm WarningGID41 min
Jun 10, 3:56 AM CDTAreal Flood AdvisoryGID6 hr
Jun 10, 4:34 AM CDTSpecial Weather StatementGID41 min
Jun 10, 5:36 AM CDTMesoscale DiscussionSPC114 min
Jun 10, 7:03 AM CDTSpecial Weather StatementGID27 min
Jun 10, 9:29 AM CDTAreal Flood AdvisoryGID6 hr
Jun 10, 10:02 AM CDTMesoscale DiscussionSPC88 min
Jun 10, 4:08 PM CDTFlash Flood WatchGID13 hr
Jun 10, 11:47 PM CDTSevere Thunderstorm WatchSPC4 hr
Jun 10, 11:51 PM CDTSevere Thunderstorm WarningGID54 min
Jun 11, 1:45 AM CDTMesoscale DiscussionSPC60 min
Jun 11, 4:10 AM CDTFlood WatchGID26 hr
Jun 11, 4:11 AM CDTMesoscale DiscussionSPC64 min
Jun 11, 10:34 PM CDTMesoscale DiscussionSPC86 min
Jun 12, 1:00 AM CDTSevere Thunderstorm WatchSPC6 hr
Jun 12, 1:11 AM CDTSpecial Weather StatementGID34 min
Jun 12, 3:16 AM CDTMesoscale DiscussionSPC59 min
Jun 12, 4:48 AM CDTFlood WatchGID47 hr
Jun 12, 1:47 PM CDTAreal Flood WarningGID24 hr
Jun 12, 3:31 PM CDTFlash Flood WarningGID6 hr
Jun 13, 8:12 PM CDTFlash Flood WarningGID24 hr
Jun 14, 7:53 PM CDTAreal Flood WarningGID24 hr
Jun 18, 3:19 AM CDTMesoscale DiscussionSPC86 min
Jun 18, 5:14 AM CDTSpecial Weather StatementGID31 min
Jun 20, 4:26 AM CDTMesoscale DiscussionSPC94 min
Jun 20, 4:46 AM CDTMesoscale DiscussionSPC89 min
Jun 20, 10:27 AM CDTFlash Flood WatchGID21 hr
Jun 20, 7:40 PM CDTSevere Thunderstorm WarningGID50 min
Jun 20, 8:07 PM CDTSevere Thunderstorm WatchSPC6 hr
Jun 20, 8:35 PM CDTSpecial Weather StatementGID40 min
Jun 20, 9:10 PM CDTAreal Flood AdvisoryGID9 hr
Jun 20, 10:18 PM CDTMesoscale DiscussionSPC87 min
Jun 20, 11:43 PM CDTSevere Thunderstorm WatchSPC6 hr
Jun 21, 10:32 PM CDTSevere Thunderstorm WatchSPC6 hr
Jun 22, 12:21 AM CDTSpecial Weather StatementGID39 min
Jun 22, 12:26 AM CDTSevere Thunderstorm WarningGID64 min
Jun 22, 1:01 AM CDTSevere Thunderstorm WatchSPC6 hr
Jun 22, 1:32 AM CDTAreal Flood AdvisoryGID4 hr
Jun 22, 3:28 PM CDTFlash Flood WatchGID12 hr
Jun 22, 3:37 PM CDTMesoscale DiscussionSPC23 min
Jun 22, 6:30 PM CDTTornado WatchSPC6 hr
Jun 22, 7:08 PM CDTMesoscale DiscussionSPC2 hr
Jun 22, 9:13 PM CDTSpecial Weather StatementGID47 min
Jun 23, 1:05 AM CDTMesoscale DiscussionSPC85 min
Jun 25, 5:32 PM CDTMesoscale DiscussionSPC118 min
Jun 26, 3:58 PM CDTMesoscale DiscussionSPC2 hr
Jun 26, 4:50 PM CDTTornado WatchSPC7 hr
Jul 2, 3:53 AM CDTWind AdvisoryGID15 hr
Jul 10, 1:55 PM CDTSevere Thunderstorm WatchSPC8 hr
Jul 10, 5:17 PM CDTMesoscale DiscussionSPC58 min
Jul 10, 8:11 PM CDTSevere Thunderstorm WarningGID28 min
Jul 10, 9:16 PM CDTMesoscale DiscussionSPC59 min
Jul 10, 10:18 PM CDTSpecial Weather StatementGID42 min
Jul 11, 6:13 PM CDTSevere Thunderstorm WatchSPC5 hr
Jul 11, 7:38 PM CDTMesoscale DiscussionSPC67 min
Jul 14, 2:30 PM CDTMesoscale DiscussionSPC90 min
Jul 16, 3:49 PM CDTHeat AdvisoryGID27 hr
Jul 17, 5:56 PM CDTMesoscale DiscussionSPC64 min
Jul 17, 6:13 PM CDTSevere Thunderstorm WatchSPC7 hr
Jul 17, 10:25 PM CDTMesoscale DiscussionSPC95 min
Jul 18, 8:08 PM CDTSevere Thunderstorm WatchSPC7 hr
Jul 19, 5:42 PM CDTMesoscale DiscussionSPC63 min
Jul 19, 11:23 PM CDTSevere Thunderstorm WatchSPC6 hr
Jul 19, 11:59 PM CDTSevere Thunderstorm WarningGID46 min
Jul 21, 7:22 PM CDTMesoscale DiscussionSPC83 min
Jul 22, 2:06 PM CDTMesoscale DiscussionSPC114 min
Jul 22, 10:19 PM CDTMesoscale DiscussionSPC86 min
Aug 7, 4:14 AM CDTHeat AdvisoryGID64 hr
Aug 8, 2:19 PM CDTMesoscale DiscussionSPC86 min
Aug 8, 5:47 PM CDTMesoscale DiscussionSPC58 min
Aug 8, 7:05 PM CDTSevere Thunderstorm WatchSPC7 hr
Aug 8, 8:57 PM CDTMesoscale DiscussionSPC63 min
Aug 12, 2:05 PM CDTMesoscale DiscussionSPC115 min
Aug 16, 2:50 PM CDTMesoscale DiscussionSPC85 min
Aug 16, 5:32 PM CDTMesoscale DiscussionSPC28 min
Aug 19, 5:30 PM CDTSevere Thunderstorm WatchSPC5 hr
Aug 19, 8:11 PM CDTMesoscale DiscussionSPC64 min
Aug 23, 3:48 PM CDTMesoscale DiscussionSPC2 hr
Aug 30, 2:45 PM CDTMesoscale DiscussionSPC30 min
Aug 30, 3:23 PM CDTSevere Thunderstorm WatchSPC6 hr
Sep 2, 3:15 AM CDTMesoscale DiscussionSPC90 min
Sep 6, 4:04 AM CDTWind AdvisoryGID14 hr
Sep 13, 2:38 PM CDTTornado WatchSPC7 hr
Sep 15, 3:42 PM CDTMesoscale DiscussionSPC93 min
Sep 17, 11:11 PM CDTSevere Thunderstorm WarningGID49 min
Sep 17, 11:12 PM CDTSevere Thunderstorm WatchSPC7 hr
Sep 17, 11:59 PM CDTSevere Thunderstorm WarningGID46 min
Sep 18, 12:22 AM CDTAreal Flood AdvisoryGID5 hr
Sep 18, 12:45 AM CDTSevere Thunderstorm WarningGID45 min
Sep 18, 1:00 AM CDTMesoscale DiscussionSPC60 min
Sep 18, 1:29 AM CDTSevere Thunderstorm WarningGID46 min
Sep 20, 1:30 AM CDTDense Fog AdvisoryGID7 hr
Sep 20, 2:10 AM CDTWind AdvisoryGID17 hr
Sep 20, 8:34 PM CDTMesoscale DiscussionSPC86 min
Sep 22, 3:24 PM CDTMesoscale DiscussionSPC96 min
Sep 22, 4:00 PM CDTTornado WatchSPC7 hr
Sep 22, 7:41 PM CDTMesoscale DiscussionSPC2 hr
Sep 23, 1:39 PM CDTMesoscale DiscussionSPC2 hr
Oct 2, 3:50 AM CDTFrost AdvisoryGID29 hr
Oct 25, 11:17 AM CDTWind AdvisoryGID10 hr
Oct 25, 3:00 PM CDTWind AdvisoryGID28 hr
Oct 26, 3:38 AM CDTWind AdvisoryGID39 hr
Nov 20, 8:45 PM CSTWinter Weather AdvisoryGID14 hr
Nov 22, 1:21 AM CSTFreezing Rain AdvisoryGID8 hr
Nov 23, 3:31 PM CSTFreezing Rain AdvisoryGID12 hr
Nov 29, 3:46 AM CSTWind AdvisoryGID26 hr
Dec 10, 3:39 PM CSTWind AdvisoryGID32 hr
Dec 11, 3:18 PM CSTWind Chill AdvisoryGID19 hr
Dec 15, 3:23 PM CSTWinter Weather AdvisoryGID8 hr
Dec 19, 9:06 PM CSTDense Fog AdvisoryGID9 hr
Dec 23, 5:10 PM CSTWinter Weather AdvisoryGID13 hr
Dec 29, 1:12 PM CSTWinter Weather AdvisoryGID47 hr
Dec 30, 12:29 PM CSTWinter Storm WarningGID23 hr
Dec 31, 11:45 AM CSTWind Chill AdvisoryGID24 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 archive20092011

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.