Alert archive / Minnesota / Roseau County

Weather alerts in Roseau County, Minnesota, 2008

100 weather alerts in 2008, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Roseau County and its neighbors

Each county as a circle sized by its count in 2008. Tap one for its archive.

Alerts
100
Warnings
25
Watches
15
Advisories
45
Busiest month
July25 alerts
Busiest day
July 11, 200812 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 3 tornado warnings covering Roseau County in 2008 had a tornado report inside them.

Roseau County, 2008

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings30100%0
Severe thunderstorm warnings11282%250%56 min
Flash flood warnings00

Each office's whole area, 2008

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Grand Forks, ND: tornado warnings582655%5375%21 min
NWS Grand Forks, ND: severe thunderstorm warnings2179158%19676%26 min
NWS Grand Forks, ND: flash flood warnings9722%1782%112 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, 10:40 PM CSTWind AdvisoryFGF7 hr
Jan 13, 9:14 PM CSTWind Chill AdvisoryFGF7 hr
Jan 14, 4:27 AM CSTWind Chill AdvisoryFGF4 hr
Jan 14, 9:46 PM CSTWind Chill AdvisoryFGF10 hr
Jan 16, 1:04 AM CSTWinter Weather AdvisoryFGF11 hr
Jan 17, 3:46 AM CSTWind Chill AdvisoryFGF56 hr
Jan 17, 3:18 PM CSTWind Chill WarningFGF21 hr
Jan 27, 2:54 PM CSTWinter Storm WatchFGF24 hr
Jan 28, 4:19 AM CSTWinter Weather AdvisoryFGF35 hr
Jan 28, 3:20 PM CSTWind Chill WarningFGF45 hr
Jan 30, 11:54 AM CSTWind Chill AdvisoryFGF8 hr
Feb 7, 3:47 AM CSTBlizzard WatchFGF42 hr
Feb 8, 3:37 PM CSTWinter Weather AdvisoryFGF26 hr
Feb 9, 3:12 PM CSTWind Chill WarningFGF21 hr
Feb 10, 3:41 PM CSTWind Chill AdvisoryFGF20 hr
Feb 13, 3:24 PM CSTWind Chill AdvisoryFGF21 hr
Feb 13, 4:09 PM CSTMesoscale DiscussionSPC6 hr
Feb 16, 4:11 AM CSTWinter Weather AdvisoryFGF17 hr
Feb 17, 9:47 AM CSTSnow and Blowing Snow AdvisoryFGF10 hr
Feb 17, 7:40 PM CSTWind Chill AdvisoryFGF19 hr
Feb 19, 3:56 AM CSTWind Chill AdvisoryFGF6 hr
Feb 19, 10:13 AM CSTWind Chill WarningFGF18 hr
Feb 20, 3:26 PM CSTWind Chill AdvisoryFGF19 hr
Mar 2, 9:16 AM CSTWinter Weather AdvisoryFGF12 hr
Mar 4, 3:56 AM CSTWinter Weather AdvisoryFGF15 hr
Mar 29, 11:12 PM CDTWind AdvisoryFGF11 hr
Apr 14, 10:30 AM CDTWind AdvisoryFGF11 hr
Apr 25, 4:54 AM CDTSnow AdvisoryFGF7 hr
Apr 25, 4:54 AM CDTWinter Storm WarningFGF38 hr
Apr 25, 11:53 AM CDTWinter Weather AdvisoryFGF24 hr
May 16, 4:19 AM CDTWind AdvisoryFGF17 hr
May 17, 3:44 AM CDTWind AdvisoryFGF17 hr
May 17, 2:56 PM CDTFrost AdvisoryFGF17 hr
May 20, 3:04 PM CDTFreeze WarningFGF16 hr
May 24, 8:07 PM CDTTornado WatchSPC3 hr
May 24, 9:26 PM CDTMesoscale DiscussionSPC2 hr
May 26, 3:12 PM CDTFreeze WarningFGF16 hr
May 27, 2:52 PM CDTFrost AdvisoryFGF16 hr
May 31, 2:07 PM CDTMesoscale DiscussionSPC53 min
Jun 5, 5:12 AM CDTFlash Flood WatchFGF22 hr
Jun 6, 10:09 AM CDTMesoscale DiscussionSPC96 min
Jun 6, 10:28 AM CDTTornado WatchSPC5 hr
Jun 11, 11:24 AM CDTWind AdvisoryFGF8 hr
Jun 11, 7:10 PM CDTWind AdvisoryFGF110 min
Jun 12, 3:33 PM CDTSevere Thunderstorm WatchSPC6 hr
Jun 12, 6:48 PM CDTSevere Thunderstorm WarningFGF57 min
Jun 12, 7:22 PM CDTMesoscale DiscussionSPC83 min
Jun 12, 7:46 PM CDTSevere Thunderstorm WarningFGF59 min
Jun 12, 8:27 PM CDTSevere Thunderstorm WarningFGF49 min
Jun 28, 3:57 AM CDTWind AdvisoryFGF16 hr
Jul 1, 3:51 PM CDTMesoscale DiscussionSPC114 min
Jul 1, 4:50 PM CDTSevere Thunderstorm WatchSPC8 hr
Jul 1, 5:11 PM CDTSevere Thunderstorm WarningFGF64 min
Jul 1, 5:54 PM CDTSevere Thunderstorm WarningFGF66 min
Jul 1, 6:13 PM CDTSevere Thunderstorm WarningFGF62 min
Jul 5, 5:08 PM CDTTornado WatchSPC7 hr
Jul 5, 8:15 PM CDTMesoscale DiscussionSPC60 min
Jul 5, 10:51 PM CDTMesoscale DiscussionSPC54 min
Jul 5, 11:42 PM CDTSevere Thunderstorm WarningFGF33 min
Jul 7, 6:30 PM CDTSevere Thunderstorm WarningFGF60 min
Jul 9, 3:34 PM CDTMesoscale DiscussionSPC86 min
Jul 10, 11:19 PM CDTSevere Thunderstorm WatchSPC8 hr
Jul 11, 4:11 AM CDTMesoscale DiscussionSPC94 min
Jul 11, 5:01 AM CDTSevere Thunderstorm WarningFGF59 min
Jul 11, 6:36 AM CDTMesoscale DiscussionSPC24 min
Jul 11, 6:40 AM CDTSevere Thunderstorm WarningFGF63 min
Jul 11, 12:37 PM CDTMesoscale DiscussionSPC83 min
Jul 11, 2:26 PM CDTTornado WatchSPC6 hr
Jul 11, 3:22 PM CDTSevere Thunderstorm WarningFGF53 min
Jul 11, 3:41 PM CDTTornado WarningFGF64 min
Jul 11, 4:16 PM CDTTornado WarningFGF59 min
Jul 11, 4:44 PM CDTTornado WarningFGF61 min
Jul 11, 5:50 PM CDTMesoscale DiscussionSPC85 min
Jul 12, 4:20 AM CDTWind AdvisoryFGF18 hr
Jul 29, 12:56 AM CDTSevere Thunderstorm WatchSPC5 hr
Aug 21, 3:48 AM CDTWind AdvisoryFGF17 hr
Aug 26, 4:12 AM CDTWind AdvisoryFGF16 hr
Sep 1, 5:58 PM CDTAreal Flood AdvisoryFGF13 hr
Sep 22, 7:35 PM CDTSevere Thunderstorm WatchSPC8 hr
Sep 22, 10:21 PM CDTMesoscale DiscussionSPC54 min
Sep 23, 1:37 AM CDTMesoscale DiscussionSPC23 min
Oct 2, 3:33 PM CDTFrost AdvisoryFGF18 hr
Oct 13, 3:20 PM CDTFrost AdvisoryFGF18 hr
Oct 25, 4:13 AM CDTWind AdvisoryFGF39 hr
Oct 25, 3:37 PM CDTWinter Weather AdvisoryFGF24 hr
Nov 4, 1:38 PM CSTFlood WatchFGF52 hr
Nov 12, 2:00 AM CSTWinter Weather AdvisoryFGF8 hr
Dec 12, 3:39 AM CSTBlizzard WatchFGF25 hr
Dec 13, 4:03 AM CSTBlizzard WarningFGF48 hr
Dec 15, 12:04 AM CSTWind Chill WarningFGF12 hr
Dec 15, 11:28 AM CSTWind Chill AdvisoryFGF6 hr
Dec 18, 2:48 PM CSTWinter Storm WatchFGF24 hr
Dec 19, 4:01 AM CSTWinter Storm WarningFGF38 hr
Dec 20, 3:18 PM CSTWind Chill WarningFGF20 hr
Dec 20, 3:18 PM CSTWinter Weather AdvisoryFGF20 hr
Dec 21, 11:04 AM CSTWind Chill AdvisoryFGF10 hr
Dec 22, 3:25 PM CSTWinter Weather AdvisoryFGF24 hr
Dec 26, 2:48 PM CSTWinter Weather AdvisoryFGF20 hr
Dec 28, 2:53 PM CSTWinter Weather AdvisoryFGF17 hr
Dec 30, 2:40 PM CSTWind Chill AdvisoryFGF4 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 archive20072009

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.