Alert archive / Indiana / Delaware County

Weather alerts in Delaware County, Indiana, 2010

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

Delaware County and its neighbors

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

Alerts: 164
Warnings: 29
Watches: 40
Advisories: 38
Busiest month: June55 alerts
Busiest day: June 22, 20107 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 Delaware County in 2010 had a tornado report inside them; 0 of 1 tornado reports fell inside a warning.

Delaware County, 2010

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	3	0	100%	1	0%
Severe thunderstorm warnings	7	6	14%	5	60%	21 min
Flash flood warnings	4	2	50%	0

Each office's whole area, 2010

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Indianapolis, IN: tornado warnings	59	2	97%	8	50%	11 min
NWS Indianapolis, IN: severe thunderstorm warnings	197	91	54%	269	73%	27 min
NWS Indianapolis, IN: flash flood warnings	45	17	62%	35	60%	90 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 5, 2:36 PM EST	Winter Storm Watch	IND	25 hr
Jan 6, 3:28 PM EST	Winter Weather Advisory	IND	50 hr
Jan 16, 4:14 AM EST	Freezing Fog Advisory	IND	6 hr
Jan 16, 8:20 PM EST	Dense Fog Advisory	IND	13 hr
Jan 17, 3:44 PM EST	Freezing Fog Advisory	IND	18 hr
Jan 19, 2:30 AM EST	Freezing Fog Advisory	IND	8 hr
Jan 20, 10:16 PM EST	Freezing Rain Advisory	IND	14 hr
Jan 25, 8:43 AM EST	Areal Flood Advisory	IND	12 hr
Jan 25, 11:43 PM EST	Winter Weather Advisory	IND	12 hr
Feb 3, 3:23 PM EST	Winter Storm Watch	IND	23 hr
Feb 4, 2:31 PM EST	Winter Storm Warning	IND	38 hr
Feb 4, 2:31 PM EST	Winter Weather Advisory	IND	49 hr
Feb 6, 3:49 PM EST	Winter Storm Watch	IND	45 hr
Feb 8, 12:46 PM EST	Winter Storm Warning	IND	50 hr
Feb 14, 1:13 PM EST	Winter Weather Advisory	IND	50 hr
Feb 22, 10:10 AM EST	Dense Fog Advisory	IND	3 hr
Feb 26, 3:04 PM EST	Winter Weather Advisory	IND	15 hr
Mar 8, 3:44 AM EST	Dense Fog Advisory	IND	9 hr
Apr 1, 2:48 PM EDT	Fire Weather Watch	IND	13 hr
Apr 2, 3:53 AM EDT	Red Flag Warning	IND	16 hr
Apr 7, 10:02 PM EDT	Special Weather Statement	IND	43 min
Apr 9, 3:31 PM EDT	Frost Advisory	IND	17 hr
Apr 15, 8:53 AM EDT	Red Flag Warning	IND	11 hr
Apr 17, 4:12 AM EDT	Freeze Watch	IND	8 hr
Apr 17, 12:08 PM EDT	Freeze Warning	IND	21 hr
Apr 18, 9:09 PM EDT	Frost Advisory	IND	11 hr
Apr 24, 8:33 PM EDT	Mesoscale Discussion	SPC	57 min
Apr 25, 5:03 AM EDT	Special Weather Statement	IND	42 min
Apr 25, 5:26 AM EDT	Special Weather Statement	IND	49 min
Apr 27, 2:16 PM EDT	Frost Advisory	IND	18 hr
May 1, 3:54 AM EDT	Mesoscale Discussion	SPC	2 hr
May 1, 11:14 PM EDT	Tornado Watch	SPC	7 hr
May 2, 3:09 AM EDT	Mesoscale Discussion	SPC	2 hr
May 3, 2:45 PM EDT	Severe Thunderstorm Watch	SPC	6 hr
May 3, 6:12 PM EDT	Mesoscale Discussion	SPC	93 min
May 5, 2:52 PM EDT	Mesoscale Discussion	SPC	113 min
May 5, 3:48 PM EDT	Severe Thunderstorm Watch	SPC	6 hr
May 5, 7:09 PM EDT	Mesoscale Discussion	SPC	96 min
May 5, 9:42 PM EDT	Mesoscale Discussion	SPC	63 min
May 7, 3:30 PM EDT	Tornado Watch	SPC	9 hr
May 8, 3:32 PM EDT	Frost Advisory	IND	16 hr
May 9, 3:12 PM EDT	Frost Advisory	IND	17 hr
May 13, 12:02 PM EDT	Mesoscale Discussion	SPC	118 min
May 13, 1:46 PM EDT	Tornado Watch	SPC	6 hr
May 21, 11:26 AM EDT	Mesoscale Discussion	SPC	64 min
May 21, 1:33 PM EDT	Severe Thunderstorm Watch	SPC	7 hr
May 21, 4:08 PM EDT	Mesoscale Discussion	SPC	67 min
May 27, 8:41 PM EDT	Areal Flood Advisory	IND	3 hr
May 31, 5:13 PM EDT	Special Weather Statement	IND	47 min
May 31, 7:01 PM EDT	Areal Flood Advisory	IND	3 hr
Jun 2, 2:52 AM EDT	Flash Flood Watch	IND	9 hr
Jun 2, 11:55 AM EDT	Flash Flood Watch	IND	21 hr
Jun 4, 1:14 PM EDT	Severe Thunderstorm Watch	SPC	9 hr
Jun 4, 3:45 PM EDT	Mesoscale Discussion	SPC	60 min
Jun 4, 10:53 PM EDT	Mesoscale Discussion	SPC	67 min
Jun 5, 8:51 AM EDT	Mesoscale Discussion	SPC	114 min
Jun 5, 10:11 PM EDT	Tornado Watch	SPC	7 hr
Jun 6, 12:17 AM EDT	Mesoscale Discussion	SPC	118 min
Jun 6, 3:38 AM EDT	Mesoscale Discussion	SPC	2 hr
Jun 6, 7:03 PM EDT	Tornado Warning	IND	16 min
Jun 6, 7:14 PM EDT	Tornado Warning	IND	32 min
Jun 11, 1:38 PM EDT	Mesoscale Discussion	SPC	2 hr
Jun 11, 3:26 PM EDT	Flash Flood Watch	IND	13 hr
Jun 12, 1:24 PM EDT	Mesoscale Discussion	SPC	96 min
Jun 12, 1:50 PM EDT	Severe Thunderstorm Watch	SPC	7 hr
Jun 12, 5:47 PM EDT	Mesoscale Discussion	SPC	88 min
Jun 12, 8:34 PM EDT	Mesoscale Discussion	SPC	26 min
Jun 13, 7:13 PM EDT	Mesoscale Discussion	SPC	62 min
Jun 14, 11:04 AM EDT	Flash Flood Watch	IND	44 hr
Jun 14, 2:45 PM EDT	Mesoscale Discussion	SPC	60 min
Jun 14, 3:17 PM EDT	Severe Thunderstorm Watch	SPC	8 hr
Jun 15, 1:29 PM EDT	Severe Thunderstorm Watch	SPC	9 hr
Jun 15, 6:58 PM EDT	Mesoscale Discussion	SPC	62 min
Jun 15, 7:56 PM EDT	Severe Thunderstorm Warning	IND	49 min
Jun 15, 8:19 PM EDT	Severe Thunderstorm Warning	IND	56 min
Jun 15, 8:41 PM EDT	Mesoscale Discussion	SPC	64 min
Jun 15, 11:33 PM EDT	River Flood Warning	IND	13 hr
Jun 18, 6:06 PM EDT	Mesoscale Discussion	SPC	54 min
Jun 18, 6:30 PM EDT	Severe Thunderstorm Watch	SPC	6 hr
Jun 18, 7:56 PM EDT	Mesoscale Discussion	SPC	94 min
Jun 18, 8:09 PM EDT	Severe Thunderstorm Warning	IND	66 min
Jun 18, 8:43 PM EDT	Severe Thunderstorm Warning	IND	77 min
Jun 19, 12:38 AM EDT	Severe Thunderstorm Watch	SPC	5 hr
Jun 21, 8:21 AM EDT	Flash Flood Warning	IND	3 hr
Jun 21, 9:51 AM EDT	Areal Flood Warning	IND	6 hr
Jun 21, 10:17 AM EDT	Special Weather Statement	IND	58 min
Jun 21, 4:08 PM EDT	Flash Flood Watch	IND	24 hr
Jun 21, 10:51 PM EDT	Severe Thunderstorm Watch	SPC	7 hr
Jun 22, 2:14 AM EDT	Flash Flood Warning	IND	6 hr
Jun 22, 3:27 AM EDT	Mesoscale Discussion	SPC	93 min
Jun 22, 6:24 AM EDT	Flash Flood Warning	IND	6 hr
Jun 22, 6:29 AM EDT	Flash Flood Warning	IND	6 hr
Jun 22, 7:29 AM EDT	River Flood Warning	IND	29 hr
Jun 22, 12:02 PM EDT	Areal Flood Warning	IND	24 hr
Jun 23, 2:14 PM EDT	Flash Flood Watch	IND	16 hr
Jun 23, 9:00 PM EDT	Severe Thunderstorm Watch	SPC	4 hr
Jun 23, 10:48 PM EDT	Special Weather Statement	IND	27 min
Jun 23, 10:55 PM EDT	Areal Flood Advisory	IND	3 hr
Jun 24, 12:13 AM EDT	Mesoscale Discussion	SPC	62 min
Jun 26, 2:53 PM EDT	Flash Flood Watch	IND	44 hr
Jun 27, 11:02 AM EDT	Mesoscale Discussion	SPC	118 min
Jun 27, 11:38 AM EDT	Severe Thunderstorm Watch	SPC	7 hr
Jun 27, 2:43 PM EDT	Mesoscale Discussion	SPC	2 hr
Jun 28, 4:14 AM EDT	Special Weather Statement	IND	46 min
Jun 28, 6:17 AM EDT	Areal Flood Advisory	IND	3 hr
Jul 14, 3:08 PM EDT	Heat Advisory	IND	29 hr
Jul 15, 12:57 PM EDT	Severe Thunderstorm Watch	SPC	8 hr
Jul 15, 3:47 PM EDT	Mesoscale Discussion	SPC	118 min
Jul 15, 4:53 PM EDT	Special Weather Statement	IND	67 min
Jul 15, 5:28 PM EDT	Areal Flood Advisory	IND	3 hr
Jul 15, 6:56 PM EDT	Mesoscale Discussion	SPC	94 min
Jul 19, 3:21 PM EDT	Mesoscale Discussion	SPC	54 min
Jul 20, 12:02 AM EDT	Mesoscale Discussion	SPC	88 min
Jul 20, 6:13 PM EDT	Mesoscale Discussion	SPC	92 min
Jul 22, 3:32 PM EDT	Heat Advisory	IND	27 hr
Jul 23, 3:52 PM EDT	Heat Advisory	IND	28 hr
Jul 24, 2:53 PM EDT	Severe Thunderstorm Watch	SPC	7 hr
Jul 24, 9:36 PM EDT	Mesoscale Discussion	SPC	54 min
Jul 28, 3:49 AM EDT	Heat Advisory	IND	15 hr
Aug 3, 9:20 AM EDT	Special Weather Statement	IND	55 min
Aug 3, 3:16 PM EDT	Heat Advisory	IND	29 hr
Aug 3, 11:36 PM EDT	Mesoscale Discussion	SPC	114 min
Aug 4, 10:11 AM EDT	Mesoscale Discussion	SPC	34 min
Aug 4, 11:16 AM EDT	Special Weather Statement	IND	59 min
Aug 4, 11:49 AM EDT	Severe Thunderstorm Warning	IND	41 min
Aug 4, 6:25 PM EDT	Mesoscale Discussion	SPC	65 min
Aug 4, 7:02 PM EDT	Severe Thunderstorm Watch	SPC	7 hr
Aug 4, 8:28 PM EDT	Special Weather Statement	IND	47 min
Aug 4, 8:55 PM EDT	Mesoscale Discussion	SPC	65 min
Aug 8, 3:25 PM EDT	Excessive Heat Watch	IND	36 hr
Aug 11, 3:12 AM EDT	Heat Advisory	IND	4 days
Aug 11, 7:23 AM EDT	Special Weather Statement	IND	22 min
Aug 11, 8:21 AM EDT	Special Weather Statement	IND	54 min
Aug 11, 10:37 AM EDT	Special Weather Statement	IND	38 min
Sep 16, 1:35 PM EDT	Mesoscale Discussion	SPC	85 min
Sep 22, 3:32 PM EDT	Fire Weather Watch	IND	28 hr
Sep 29, 3:08 PM EDT	Fire Weather Watch	IND	29 hr
Oct 4, 2:34 PM EDT	Frost Advisory	IND	17 hr
Oct 10, 3:59 PM EDT	Fire Weather Watch	IND	15 hr
Oct 19, 2:18 AM EDT	Dense Fog Advisory	IND	7 hr
Oct 20, 6:51 AM EDT	Fire Weather Watch	IND	20 hr
Oct 20, 6:51 AM EDT	Red Flag Warning	IND	13 hr
Oct 21, 3:08 AM EDT	Red Flag Warning	IND	17 hr
Oct 21, 3:14 PM EDT	Frost Advisory	IND	18 hr
Oct 22, 3:27 PM EDT	Fire Weather Watch	IND	13 hr
Oct 25, 3:58 AM EDT	High Wind Watch	IND	11 hr
Oct 25, 2:58 PM EDT	Wind Advisory	IND	28 hr
Oct 26, 3:47 AM EDT	High Wind Warning	IND	12 hr
Oct 26, 7:00 AM EDT	Mesoscale Discussion	SPC	2 hr
Oct 26, 8:55 AM EDT	Tornado Watch	SPC	7 hr
Oct 26, 9:45 AM EDT	Severe Thunderstorm Warning	IND	45 min
Oct 26, 10:14 AM EDT	Severe Thunderstorm Warning	IND	76 min
Oct 26, 10:15 AM EDT	Tornado Warning	IND	30 min
Oct 28, 3:17 AM EDT	Freeze Warning	IND	31 hr
Oct 29, 3:10 PM EDT	Freeze Warning	IND	18 hr
Oct 30, 3:32 AM EDT	Red Flag Warning	IND	15 hr
Nov 20, 4:36 AM EST	Dense Fog Advisory	IND	5 hr
Nov 22, 11:54 PM EST	Special Weather Statement	IND	51 min
Nov 24, 3:19 AM EST	Flood Watch	IND	43 hr
Nov 24, 12:35 PM EST	Mesoscale Discussion	SPC	5 hr
Dec 3, 2:47 PM EST	Winter Weather Advisory	IND	28 hr
Dec 11, 4:05 PM EST	Winter Weather Advisory	IND	45 hr
Dec 20, 3:04 PM EST	Winter Weather Advisory	IND	20 hr
Dec 29, 2:48 PM EST	Dense Fog Advisory	IND	12 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	7
Tornado Warning	3
Severe Thunderstorm Watch	15
Tornado Watch	5
Mesoscale Discussion	42
Special Weather Statement	15
Flooding
Areal Flood Warning	2
Flash Flood Warning	4
River Flood Warning	2
Flash Flood Watch	7
Flood Watch	1
Areal Flood Advisory	6
Winter
Winter Storm Warning	2
Winter Storm Watch	3
Freezing Rain Advisory	1
Winter Weather Advisory	8
Heat
Excessive Heat Watch	1
Heat Advisory	6
Cold
Freeze Warning	3
Freeze Watch	1
Frost Advisory	7
Wind and dust
High Wind Warning	1
High Wind Watch	1
Wind Advisory	1
Fire
Red Flag Warning	5
Fire Weather Watch	6
Fog and smoke
Dense Fog Advisory	6
Freezing Fog Advisory	3

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record Forecast The radar archive 2009 2011

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.