Alert archive / Indiana / Dearborn County

Weather alerts in Dearborn County, Indiana, 2008

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

Dearborn County and its neighbors

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

Alerts: 158
Warnings: 37
Watches: 31
Advisories: 46
Busiest month: June43 alerts
Busiest day: June 4, 200816 alerts

Over time

By month

Warning verification

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

1 of 2 tornado warnings covering Dearborn County in 2008 had a tornado report inside them; 1 of 1 tornado reports fell inside a warning, on average 1 minutes after it went out.

Dearborn County, 2008

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	2	1	50%	1	100%	1 min
Severe thunderstorm warnings	14	12	14%	5	60%	16 min
Flash flood warnings	5	2	60%	2	100%	145 min

Each office's whole area, 2008

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Wilmington, OH: tornado warnings	35	6	83%	10	60%	20 min
NWS Wilmington, OH: severe thunderstorm warnings	263	155	41%	368	76%	20 min
NWS Wilmington, OH: flash flood warnings	29	12	59%	34	94%	60 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, Eastern Time. Each opens its own page with the text, the map, the radar and the sounding.

Issued	Product	Office	Lasted
Jan 8, 4:13 AM EST	Wind Advisory	ILN	26 hr
Jan 8, 9:01 PM EST	Mesoscale Discussion	SPC	89 min
Jan 8, 9:50 PM EST	Areal Flood Advisory	ILN	3 hr
Jan 8, 10:07 PM EST	Tornado Watch	SPC	4 hr
Jan 9, 8:30 AM EST	River Flood Advisory	ILN	202 days
Jan 18, 3:52 PM EST	Wind Chill Advisory	ILN	42 hr
Jan 29, 4:02 AM EST	Wind Advisory	ILN	29 hr
Jan 29, 5:40 PM EST	Severe Thunderstorm Watch	SPC	3 hr
Jan 29, 7:55 PM EST	Severe Thunderstorm Warning	ILN	50 min
Jan 31, 4:01 AM EST	Winter Storm Warning	ILN	30 hr
Jan 31, 4:01 AM EST	Winter Weather Advisory	ILN	26 hr
Jan 31, 7:23 PM EST	Mesoscale Discussion	SPC	3 hr
Feb 4, 4:11 PM EST	Flood Watch	ILN	41 hr
Feb 5, 11:07 AM EST	Areal Flood Warning	ILN	6 hr
Feb 5, 7:15 PM EST	Mesoscale Discussion	SPC	90 min
Feb 5, 8:08 PM EST	Tornado Watch	SPC	6 hr
Feb 5, 10:19 PM EST	Mesoscale Discussion	SPC	86 min
Feb 6, 12:28 AM EST	Severe Thunderstorm Warning	ILN	47 min
Feb 6, 12:57 AM EST	Flash Flood Warning	ILN	2 hr
Feb 6, 1:03 AM EST	Severe Thunderstorm Warning	ILN	42 min
Feb 9, 3:54 AM EST	Wind Advisory	ILN	36 hr
Feb 10, 4:07 PM EST	Winter Storm Watch	ILN	13 hr
Feb 11, 5:13 AM EST	Winter Storm Warning	ILN	40 hr
Feb 12, 12:51 AM EST	Mesoscale Discussion	SPC	5 hr
Feb 12, 7:54 AM EST	Mesoscale Discussion	SPC	4 hr
Feb 12, 12:49 PM EST	Winter Weather Advisory	ILN	15 hr
Feb 12, 1:44 PM EST	Mesoscale Discussion	SPC	6 hr
Feb 17, 4:02 AM EST	Wind Advisory	ILN	19 hr
Feb 19, 3:50 PM EST	Snow Advisory	ILN	20 hr
Feb 21, 4:13 AM EST	Winter Weather Advisory	ILN	48 hr
Feb 21, 2:45 PM EST	Winter Storm Warning	ILN	19 hr
Feb 21, 6:42 PM EST	Mesoscale Discussion	SPC	4 hr
Feb 22, 1:33 AM EST	Mesoscale Discussion	SPC	6 hr
Feb 22, 2:54 PM EST	Freezing Rain Advisory	ILN	13 hr
Mar 2, 3:16 PM EST	Flood Watch	ILN	53 hr
Mar 4, 4:32 AM EST	Areal Flood Advisory	ILN	3 hr
Mar 4, 9:41 AM EST	Areal Flood Advisory	ILN	4 hr
Mar 4, 10:32 AM EST	Areal Flood Warning	ILN	6 hr
Mar 4, 4:25 PM EST	Areal Flood Warning	ILN	6 hr
Mar 4, 10:21 PM EST	Areal Flood Advisory	ILN	6 hr
Mar 5, 3:38 AM EST	River Flood Advisory	ILN	5 hr
Mar 6, 3:53 AM EST	Winter Storm Watch	ILN	25 hr
Mar 7, 4:36 AM EST	Winter Storm Warning	ILN	35 hr
Mar 7, 8:19 AM EST	Mesoscale Discussion	SPC	4 hr
Mar 7, 3:25 PM EST	Blizzard Warning	ILN	25 hr
Mar 7, 10:05 PM EST	Mesoscale Discussion	SPC	5 hr
Mar 14, 10:41 PM EDT	Dense Fog Advisory	ILN	13 hr
Mar 17, 3:40 PM EDT	Flood Watch	ILN	50 hr
Mar 18, 5:14 PM EDT	Areal Flood Advisory	ILN	4 hr
Mar 18, 7:04 PM EDT	Areal Flood Warning	ILN	6 hr
Mar 18, 10:17 PM EDT	Flash Flood Warning	ILN	6 hr
Mar 19, 12:13 AM EDT	River Flood Advisory	ILN	25 hr
Mar 19, 3:58 AM EDT	Flash Flood Warning	ILN	15 hr
Mar 19, 6:54 PM EDT	Areal Flood Advisory	ILN	66 min
Mar 19, 8:22 PM EDT	Areal Flood Advisory	ILN	6 hr
Mar 20, 8:22 AM EDT	River Flood Warning	ILN	14 hr
Mar 28, 1:42 AM EDT	Areal Flood Advisory	ILN	2 hr
Apr 3, 3:41 AM EDT	Flood Watch	ILN	31 hr
Apr 4, 4:14 AM EDT	Areal Flood Advisory	ILN	6 hr
Apr 4, 9:56 AM EDT	Areal Flood Advisory	ILN	42 days
Apr 11, 12:26 PM EDT	Mesoscale Discussion	SPC	2 hr
Apr 13, 4:13 AM EDT	Freeze Watch	ILN	11 hr
Apr 13, 3:23 PM EDT	Freeze Warning	ILN	12 hr
Apr 14, 3:35 AM EDT	Freeze Watch	ILN	12 hr
Apr 14, 3:46 PM EDT	Freeze Warning	ILN	17 hr
Apr 15, 3:38 AM EDT	Frost Advisory	ILN	29 hr
Apr 21, 5:03 AM EDT	Dense Fog Advisory	ILN	5 hr
Apr 29, 3:43 AM EDT	Freeze Watch	ILN	13 hr
Apr 29, 3:10 PM EDT	Frost Advisory	ILN	13 hr
May 8, 6:27 PM EDT	Mesoscale Discussion	SPC	63 min
May 11, 6:35 AM EDT	Mesoscale Discussion	SPC	115 min
May 13, 8:11 PM EDT	Mesoscale Discussion	SPC	2 hr
May 15, 10:27 PM EDT	Areal Flood Warning	ILN	3 hr
May 30, 10:16 PM EDT	Mesoscale Discussion	SPC	29 min
May 30, 10:58 PM EDT	Severe Thunderstorm Watch	SPC	5 hr
May 31, 12:35 AM EDT	Mesoscale Discussion	SPC	55 min
May 31, 12:55 AM EDT	Severe Thunderstorm Warning	ILN	50 min
Jun 3, 6:44 AM EDT	Mesoscale Discussion	SPC	3 hr
Jun 3, 12:08 PM EDT	Tornado Watch	SPC	5 hr
Jun 3, 2:52 PM EDT	Severe Thunderstorm Warning	ILN	53 min
Jun 3, 3:03 PM EDT	Mesoscale Discussion	SPC	117 min
Jun 3, 3:05 PM EDT	Tornado Warning	ILN	29 min
Jun 3, 8:42 PM EDT	Tornado Watch	SPC	6 hr
Jun 3, 10:47 PM EDT	Mesoscale Discussion	SPC	88 min
Jun 4, 12:34 AM EDT	Mesoscale Discussion	SPC	86 min
Jun 4, 3:00 AM EDT	Tornado Watch	SPC	6 hr
Jun 4, 3:48 AM EDT	Flood Watch	ILN	20 hr
Jun 4, 7:09 AM EDT	Mesoscale Discussion	SPC	2 hr
Jun 4, 8:03 AM EDT	Areal Flood Advisory	ILN	15 min
Jun 4, 8:16 AM EDT	Flash Flood Warning	ILN	3 hr
Jun 4, 9:18 AM EDT	Tornado Watch	SPC	7 hr
Jun 4, 11:44 AM EDT	Areal Flood Advisory	ILN	2 hr
Jun 4, 12:25 PM EDT	Mesoscale Discussion	SPC	95 min
Jun 4, 2:39 PM EDT	Mesoscale Discussion	SPC	96 min
Jun 4, 4:36 PM EDT	Severe Thunderstorm Watch	SPC	4 hr
Jun 4, 5:16 PM EDT	Flash Flood Warning	ILN	3 hr
Jun 4, 5:49 PM EDT	Severe Thunderstorm Warning	ILN	45 min
Jun 4, 5:59 PM EDT	Tornado Warning	ILN	46 min
Jun 13, 12:51 PM EDT	Mesoscale Discussion	SPC	84 min
Jun 13, 1:48 PM EDT	Severe Thunderstorm Watch	SPC	7 hr
Jun 13, 3:48 PM EDT	Mesoscale Discussion	SPC	117 min
Jun 15, 4:21 PM EDT	Severe Thunderstorm Watch	SPC	7 hr
Jun 15, 6:00 PM EDT	Mesoscale Discussion	SPC	90 min
Jun 15, 9:30 PM EDT	Severe Thunderstorm Warning	ILN	45 min
Jun 16, 9:09 AM EDT	Severe Thunderstorm Watch	SPC	12 hr
Jun 21, 4:36 PM EDT	Severe Thunderstorm Watch	SPC	4 hr
Jun 21, 7:04 PM EDT	Mesoscale Discussion	SPC	116 min
Jun 22, 1:07 PM EDT	Severe Thunderstorm Watch	SPC	7 hr
Jun 22, 3:24 PM EDT	Mesoscale Discussion	SPC	96 min
Jun 26, 6:00 PM EDT	Severe Thunderstorm Warning	ILN	60 min
Jun 27, 7:46 PM EDT	Mesoscale Discussion	SPC	89 min
Jun 27, 8:10 PM EDT	Severe Thunderstorm Watch	SPC	4 hr
Jun 27, 8:39 PM EDT	Mesoscale Discussion	SPC	66 min
Jun 27, 11:17 PM EDT	Mesoscale Discussion	SPC	88 min
Jun 28, 10:39 AM EDT	Mesoscale Discussion	SPC	66 min
Jun 28, 12:02 PM EDT	Mesoscale Discussion	SPC	88 min
Jun 28, 12:59 PM EDT	Severe Thunderstorm Watch	SPC	7 hr
Jun 28, 3:33 PM EDT	Areal Flood Advisory	ILN	3 hr
Jun 28, 3:52 PM EDT	Mesoscale Discussion	SPC	113 min
Jun 28, 6:47 PM EDT	Mesoscale Discussion	SPC	58 min
Jul 8, 7:02 PM EDT	Mesoscale Discussion	SPC	58 min
Jul 8, 10:10 PM EDT	Mesoscale Discussion	SPC	65 min
Jul 12, 8:27 PM EDT	Mesoscale Discussion	SPC	93 min
Jul 20, 3:10 PM EDT	Severe Thunderstorm Watch	SPC	8 hr
Jul 20, 6:14 PM EDT	Severe Thunderstorm Warning	ILN	46 min
Jul 20, 6:33 PM EDT	Mesoscale Discussion	SPC	87 min
Jul 20, 6:40 PM EDT	Severe Thunderstorm Warning	ILN	50 min
Jul 20, 7:00 PM EDT	Severe Thunderstorm Warning	ILN	30 min
Jul 21, 11:37 AM EDT	Severe Thunderstorm Watch	SPC	6 hr
Jul 21, 11:38 PM EDT	Mesoscale Discussion	SPC	97 min
Jul 22, 12:06 AM EDT	Severe Thunderstorm Watch	SPC	6 hr
Jul 22, 12:31 AM EDT	Severe Thunderstorm Warning	ILN	59 min
Jul 22, 1:28 AM EDT	Severe Thunderstorm Warning	ILN	62 min
Jul 22, 2:21 AM EDT	Mesoscale Discussion	SPC	54 min
Jul 22, 2:34 AM EDT	Severe Thunderstorm Warning	ILN	41 min
Jul 22, 3:25 AM EDT	Areal Flood Advisory	ILN	65 min
Aug 1, 10:17 PM EDT	Severe Thunderstorm Watch	SPC	3 hr
Sep 14, 4:23 AM EDT	Wind Advisory	ILN	17 hr
Sep 14, 12:49 PM EDT	High Wind Warning	ILN	8 hr
Sep 28, 5:53 AM EDT	Dense Fog Advisory	ILN	4 hr
Oct 9, 3:58 AM EDT	Dense Fog Advisory	ILN	6 hr
Oct 18, 4:36 AM EDT	Frost Advisory	ILN	28 hr
Oct 19, 3:09 PM EDT	Frost Advisory	ILN	18 hr
Oct 21, 3:36 AM EDT	Frost Advisory	ILN	12 hr
Oct 21, 3:26 PM EDT	Freeze Warning	ILN	19 hr
Dec 14, 3:50 AM EST	Wind Advisory	ILN	15 hr
Dec 15, 3:51 AM EST	Winter Storm Watch	ILN	25 hr
Dec 15, 3:51 AM EST	Winter Weather Advisory	ILN	54 hr
Dec 16, 11:56 AM EST	Mesoscale Discussion	SPC	6 hr
Dec 18, 4:13 AM EST	Winter Weather Advisory	ILN	28 hr
Dec 19, 9:13 AM EST	Wind Advisory	ILN	10 hr
Dec 21, 4:05 AM EST	Wind Chill Advisory	ILN	32 hr
Dec 23, 4:06 AM EST	Winter Weather Advisory	ILN	23 hr
Dec 23, 1:08 PM EST	Mesoscale Discussion	SPC	4 hr
Dec 26, 3:36 PM EST	Dense Fog Advisory	ILN	8 hr
Dec 27, 4:37 AM EST	Wind Advisory	ILN	29 hr
Dec 28, 2:15 AM EST	High Wind Warning	ILN	111 min
Dec 30, 3:34 PM EST	Wind Advisory	ILN	16 hr

By product

Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.

Product	Alerts
Severe storms
Severe Thunderstorm Warning	14
Tornado Warning	2
Severe Thunderstorm Watch	14
Tornado Watch	6
Mesoscale Discussion	44
Flooding
Areal Flood Warning	5
Flash Flood Warning	5
River Flood Warning	1
Flood Watch	5
Areal Flood Advisory	14
River Flood Advisory	3
Winter
Blizzard Warning	1
Winter Storm Warning	4
Winter Storm Watch	3
Freezing Rain Advisory	1
Snow Advisory	1
Winter Weather Advisory	6
Cold
Freeze Warning	3
Freeze Watch	3
Frost Advisory	5
Wind Chill Advisory	2
Wind and dust
High Wind Warning	2
Wind Advisory	9
Fog and smoke
Dense Fog Advisory	5

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record Forecast The radar archive 2007 2009

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.