Alert archive / Indiana / Blackford County

Weather alerts in Blackford County, Indiana, 2011

178 weather alerts in 2011, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Blackford County and its neighbors

Each county as a circle sized by its count in 2011. Tap one for its archive.

Alerts: 178
Warnings: 33
Watches: 34
Advisories: 36
Busiest month: May45 alerts
Busiest day: May 25, 20119 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 2 tornado warnings covering Blackford County in 2011 had a tornado report inside them.

Blackford County, 2011

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	2	0	100%	0
Severe thunderstorm warnings	16	11	31%	11	73%	9 min
Flash flood warnings	2	1	50%	0

Each office's whole area, 2011

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Northern Indiana: tornado warnings	29	2	93%	19	32%	11 min
NWS Northern Indiana: severe thunderstorm warnings	245	134	45%	428	76%	24 min
NWS Northern Indiana: flash flood warnings	24	11	54%	17	82%	70 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 10, 3:32 PM EST	Winter Weather Advisory	IWX	30 hr
Jan 17, 1:22 PM EST	Winter Weather Advisory	IWX	15 hr
Jan 19, 3:40 AM EST	Freezing Rain Advisory	IWX	5 hr
Jan 20, 4:10 AM EST	Wind Chill Advisory	IWX	32 hr
Jan 24, 4:03 AM EST	Winter Weather Advisory	IWX	11 hr
Jan 30, 4:53 AM EST	Winter Storm Watch	IWX	34 hr
Jan 31, 2:36 PM EST	Winter Storm Warning	IWX	38 hr
Jan 31, 3:45 PM EST	Mesoscale Discussion	SPC	5 hr
Jan 31, 7:56 PM EST	Mesoscale Discussion	SPC	5 hr
Feb 1, 12:42 PM EST	Mesoscale Discussion	SPC	5 hr
Feb 1, 4:54 PM EST	Mesoscale Discussion	SPC	5 hr
Feb 2, 4:37 AM EST	Winter Weather Advisory	IWX	17 hr
Feb 3, 3:57 PM EST	Wind Chill Advisory	IWX	17 hr
Feb 5, 9:47 AM EST	Winter Weather Advisory	IWX	8 hr
Feb 8, 11:22 PM EST	Wind Chill Advisory	IWX	11 hr
Feb 9, 3:14 PM EST	Wind Chill Advisory	IWX	21 hr
Feb 18, 8:59 AM EST	River Flood Warning	IWX	24 hr
Feb 20, 5:02 AM EST	Winter Weather Advisory	IWX	53 hr
Feb 21, 6:00 AM EST	Winter Weather Advisory	IWX	22 hr
Feb 21, 10:20 AM EST	Mesoscale Discussion	SPC	5 hr
Feb 23, 3:57 PM EST	Winter Storm Watch	IWX	20 hr
Feb 24, 4:48 AM EST	Winter Storm Warning	IWX	29 hr
Feb 24, 10:41 PM EST	Mesoscale Discussion	SPC	6 hr
Feb 26, 4:43 PM EST	Flash Flood Watch	IWX	12 hr
Feb 27, 4:53 AM EST	Flood Watch	IWX	24 hr
Feb 27, 11:54 PM EST	Areal Flood Advisory	IWX	6 hr
Feb 28, 1:08 AM EST	Areal Flood Warning	IWX	12 hr
Feb 28, 9:20 AM EST	River Flood Warning	IWX	4 days
Mar 3, 4:41 AM EST	Flood Watch	IWX	58 hr
Mar 5, 4:12 AM EST	Areal Flood Warning	IWX	6 hr
Mar 23, 2:02 PM EDT	Special Weather Statement	IWX	28 min
Mar 23, 2:32 PM EDT	Special Weather Statement	IWX	58 min
Mar 23, 4:20 PM EDT	Mesoscale Discussion	SPC	85 min
Mar 23, 6:19 PM EDT	Special Weather Statement	IWX	56 min
Apr 4, 5:20 AM EDT	Mesoscale Discussion	SPC	25 min
Apr 4, 5:30 AM EDT	Severe Thunderstorm Warning	IWX	45 min
Apr 4, 5:30 AM EDT	Severe Thunderstorm Watch	SPC	8 hr
Apr 15, 10:52 AM EDT	Wind Advisory	IWX	9 hr
Apr 19, 9:07 PM EDT	Mesoscale Discussion	SPC	83 min
Apr 19, 9:37 PM EDT	Severe Thunderstorm Watch	SPC	3 hr
Apr 19, 10:46 PM EDT	Severe Thunderstorm Warning	IWX	59 min
Apr 22, 8:31 PM EDT	Mesoscale Discussion	SPC	59 min
Apr 23, 12:11 AM EDT	Severe Thunderstorm Warning	IWX	49 min
Apr 25, 4:27 PM EDT	River Flood Watch	IWX	4 days
Apr 25, 9:02 PM EDT	Flash Flood Watch	IWX	7 hr
Apr 26, 1:26 PM EDT	Mesoscale Discussion	SPC	94 min
Apr 26, 3:02 PM EDT	Tornado Watch	SPC	7 hr
Apr 26, 3:22 PM EDT	Flash Flood Watch	IWX	37 hr
Apr 26, 8:33 PM EDT	Mesoscale Discussion	SPC	57 min
Apr 27, 2:51 AM EDT	Special Weather Statement	IWX	54 min
Apr 27, 6:27 PM EDT	Mesoscale Discussion	SPC	63 min
Apr 27, 7:22 PM EDT	Tornado Watch	SPC	8 hr
Apr 27, 9:22 PM EDT	Mesoscale Discussion	SPC	53 min
Apr 28, 1:28 AM EDT	Wind Advisory	IWX	10 hr
May 4, 4:14 AM EDT	Frost Advisory	IWX	28 hr
May 7, 3:54 PM EDT	Special Weather Statement	IWX	21 min
May 10, 2:46 PM EDT	Severe Thunderstorm Warning	IWX	44 min
May 10, 2:46 PM EDT	Severe Thunderstorm Warning	IWX	33 min
May 10, 3:22 PM EDT	Severe Thunderstorm Warning	IWX	38 min
May 10, 3:31 PM EDT	Severe Thunderstorm Watch	SPC	4 hr
May 10, 3:50 PM EDT	Areal Flood Warning	IWX	2 hr
May 10, 3:56 PM EDT	Severe Thunderstorm Warning	IWX	41 min
May 10, 4:32 PM EDT	Mesoscale Discussion	SPC	88 min
May 13, 1:59 PM EDT	Special Weather Statement	IWX	16 min
May 14, 9:03 PM EDT	Areal Flood Advisory	IWX	36 min
May 14, 9:31 PM EDT	Areal Flood Warning	IWX	12 hr
May 22, 2:51 PM EDT	Mesoscale Discussion	SPC	54 min
May 22, 5:32 PM EDT	Severe Thunderstorm Watch	SPC	7 hr
May 22, 8:20 PM EDT	Mesoscale Discussion	SPC	115 min
May 22, 9:06 PM EDT	Special Weather Statement	IWX	24 min
May 23, 8:25 AM EDT	Mesoscale Discussion	SPC	65 min
May 23, 12:35 PM EDT	Mesoscale Discussion	SPC	85 min
May 23, 2:15 PM EDT	Severe Thunderstorm Watch	SPC	8 hr
May 23, 6:40 PM EDT	Mesoscale Discussion	SPC	65 min
May 24, 2:11 PM EDT	Mesoscale Discussion	SPC	94 min
May 24, 3:36 PM EDT	Special Weather Statement	IWX	24 min
May 24, 6:54 PM EDT	Special Weather Statement	IWX	66 min
May 25, 9:33 AM EDT	Mesoscale Discussion	SPC	87 min
May 25, 9:50 AM EDT	Tornado Watch	SPC	9 hr
May 25, 10:06 AM EDT	Special Weather Statement	IWX	24 min
May 25, 1:26 PM EDT	Mesoscale Discussion	SPC	94 min
May 25, 1:54 PM EDT	Flash Flood Watch	IWX	14 hr
May 25, 5:30 PM EDT	Severe Thunderstorm Warning	IWX	45 min
May 25, 6:19 PM EDT	Mesoscale Discussion	SPC	86 min
May 25, 6:44 PM EDT	Tornado Watch PDS	SPC	6 hr
May 25, 7:25 PM EDT	Severe Thunderstorm Warning	IWX	65 min
May 25, 11:38 PM EDT	Severe Thunderstorm Warning	IWX	37 min
May 25, 11:53 PM EDT	Tornado Warning	IWX	16 min
May 26, 12:16 AM EDT	Areal Flood Warning	IWX	11 hr
May 26, 12:23 AM EDT	Mesoscale Discussion	SPC	2 hr
May 26, 2:02 PM EDT	Flash Flood Warning	IWX	3 hr
May 28, 6:08 PM EDT	Special Weather Statement	IWX	22 min
May 28, 6:35 PM EDT	Special Weather Statement	IWX	25 min
May 28, 6:39 PM EDT	Mesoscale Discussion	SPC	66 min
May 28, 7:27 PM EDT	Special Weather Statement	IWX	33 min
May 28, 7:43 PM EDT	Areal Flood Advisory	IWX	3 hr
May 28, 8:24 PM EDT	Severe Thunderstorm Warning	IWX	51 min
May 29, 1:29 PM EDT	Tornado Watch	SPC	7 hr
May 29, 1:56 PM EDT	Flash Flood Watch	IWX	5 hr
Jun 4, 3:08 PM EDT	Severe Thunderstorm Watch	SPC	7 hr
Jun 4, 4:32 PM EDT	Special Weather Statement	IWX	43 min
Jun 4, 6:38 PM EDT	Severe Thunderstorm Warning	IWX	67 min
Jun 4, 8:13 PM EDT	Special Weather Statement	IWX	62 min
Jun 4, 8:55 PM EDT	Mesoscale Discussion	SPC	65 min
Jun 8, 3:46 AM EDT	Heat Advisory	IWX	15 hr
Jun 10, 1:10 PM EDT	Mesoscale Discussion	SPC	95 min
Jun 10, 2:02 PM EDT	Severe Thunderstorm Watch	SPC	7 hr
Jun 10, 4:48 PM EDT	Mesoscale Discussion	SPC	87 min
Jun 11, 2:19 AM EDT	Special Weather Statement	IWX	41 min
Jun 11, 2:42 AM EDT	Severe Thunderstorm Warning	IWX	25 min
Jun 15, 9:03 AM EDT	Special Weather Statement	IWX	57 min
Jun 20, 2:04 PM EDT	Mesoscale Discussion	SPC	56 min
Jun 21, 5:56 PM EDT	Mesoscale Discussion	SPC	94 min
Jun 22, 11:46 AM EDT	Mesoscale Discussion	SPC	119 min
Jun 22, 1:14 PM EDT	Severe Thunderstorm Watch	SPC	6 hr
Jun 22, 4:35 PM EDT	Mesoscale Discussion	SPC	55 min
Jul 11, 4:25 AM EDT	Heat Advisory	IWX	16 hr
Jul 11, 6:37 AM EDT	Severe Thunderstorm Watch	SPC	6 hr
Jul 11, 8:50 AM EDT	Mesoscale Discussion	SPC	55 min
Jul 11, 10:55 AM EDT	Mesoscale Discussion	SPC	65 min
Jul 11, 12:34 PM EDT	Mesoscale Discussion	SPC	56 min
Jul 11, 6:12 PM EDT	Special Weather Statement	IWX	63 min
Jul 11, 6:16 PM EDT	Mesoscale Discussion	SPC	59 min
Jul 11, 7:18 PM EDT	Severe Thunderstorm Watch	SPC	3 hr
Jul 16, 3:51 PM EDT	Excessive Heat Watch	IWX	66 hr
Jul 16, 3:51 PM EDT	Heat Advisory	IWX	28 hr
Jul 18, 3:59 AM EDT	Heat Advisory	IWX	16 hr
Jul 19, 4:06 AM EDT	Heat Advisory	IWX	5 hr
Jul 19, 9:23 AM EDT	Excessive Heat Warning	IWX	5 days
Jul 20, 6:26 PM EDT	Mesoscale Discussion	SPC	94 min
Jul 22, 11:20 AM EDT	Mesoscale Discussion	SPC	55 min
Jul 22, 12:50 PM EDT	Mesoscale Discussion	SPC	55 min
Jul 22, 1:14 PM EDT	Severe Thunderstorm Watch	SPC	7 hr
Jul 23, 3:18 PM EDT	Mesoscale Discussion	SPC	87 min
Jul 24, 12:56 AM EDT	Areal Flood Advisory	IWX	3 hr
Jul 24, 1:24 AM EDT	Flash Flood Warning	IWX	6 hr
Jul 28, 11:43 AM EDT	Heat Advisory	IWX	8 hr
Jul 29, 4:51 PM EDT	Mesoscale Discussion	SPC	84 min
Aug 2, 4:19 AM EDT	Heat Advisory	IWX	16 hr
Aug 2, 6:22 PM EDT	Severe Thunderstorm Watch	SPC	9 hr
Aug 7, 4:12 AM EDT	Dense Fog Advisory	IWX	5 hr
Aug 7, 12:14 PM EDT	Mesoscale Discussion	SPC	2 hr
Aug 7, 1:11 PM EDT	Severe Thunderstorm Watch	SPC	6 hr
Aug 7, 2:32 PM EDT	Severe Thunderstorm Warning	IWX	58 min
Aug 8, 6:00 PM EDT	Mesoscale Discussion	SPC	2 hr
Aug 9, 1:17 PM EDT	Mesoscale Discussion	SPC	58 min
Aug 9, 3:28 PM EDT	Severe Thunderstorm Watch	SPC	7 hr
Aug 9, 6:35 PM EDT	Mesoscale Discussion	SPC	85 min
Aug 13, 1:12 PM EDT	Severe Thunderstorm Watch	SPC	9 hr
Aug 13, 7:10 PM EDT	Mesoscale Discussion	SPC	95 min
Aug 13, 9:13 PM EDT	Severe Thunderstorm Warning	IWX	46 min
Aug 24, 4:46 PM EDT	Mesoscale Discussion	SPC	89 min
Aug 24, 7:08 PM EDT	Severe Thunderstorm Watch	SPC	6 hr
Aug 24, 9:56 PM EDT	Mesoscale Discussion	SPC	94 min
Sep 2, 4:22 AM EDT	Heat Advisory	IWX	16 hr
Sep 20, 12:18 AM EDT	Dense Fog Advisory	IWX	10 hr
Sep 26, 1:45 AM EDT	Mesoscale Discussion	SPC	3 hr
Sep 26, 1:56 AM EDT	Special Weather Statement	IWX	34 min
Sep 29, 4:28 PM EDT	Mesoscale Discussion	SPC	92 min
Sep 29, 5:15 PM EDT	Special Weather Statement	IWX	30 min
Oct 1, 3:27 AM EDT	Frost Advisory	IWX	30 hr
Oct 15, 4:20 AM EDT	Wind Advisory	IWX	14 hr
Oct 18, 9:45 PM EDT	Wind Advisory	IWX	42 hr
Oct 21, 4:04 AM EDT	Frost Advisory	IWX	28 hr
Nov 9, 3:42 AM EST	Wind Advisory	IWX	16 hr
Nov 12, 4:05 PM EST	Wind Advisory	IWX	27 hr
Nov 14, 12:24 PM EST	Mesoscale Discussion	SPC	96 min
Nov 14, 12:41 PM EST	Tornado Watch	SPC	7 hr
Nov 14, 4:16 PM EST	Tornado Warning	IWX	29 min
Nov 14, 4:38 PM EST	Mesoscale Discussion	SPC	2 hr
Nov 14, 4:44 PM EST	Severe Thunderstorm Warning	IWX	31 min
Nov 14, 5:35 PM EST	Special Weather Statement	IWX	25 min
Nov 14, 6:32 PM EST	Mesoscale Discussion	SPC	88 min
Nov 28, 2:48 PM EST	Flood Watch	IWX	19 hr
Nov 29, 9:20 AM EST	Areal Flood Warning	IWX	12 hr
Nov 29, 11:41 AM EST	River Flood Warning	IWX	11 hr
Nov 29, 12:05 PM EST	Winter Storm Warning	IWX	16 hr
Nov 29, 12:05 PM EST	Winter Weather Advisory	IWX	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	16
Tornado Warning	2
Severe Thunderstorm Watch	16
Tornado Watch	6
Mesoscale Discussion	54
Special Weather Statement	21
Flooding
Areal Flood Warning	6
Flash Flood Warning	2
River Flood Warning	3
Flash Flood Watch	5
Flood Watch	3
River Flood Watch	1
Areal Flood Advisory	4
Winter
Winter Storm Warning	3
Winter Storm Watch	2
Freezing Rain Advisory	1
Winter Weather Advisory	8
Heat
Excessive Heat Warning	1
Excessive Heat Watch	1
Heat Advisory	8
Cold
Frost Advisory	3
Wind Chill Advisory	4
Wind and dust
Wind Advisory	6
Fog and smoke
Dense Fog Advisory	2

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record Forecast The radar archive 2010 2012

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.