Alert archive / Indiana / Washington County

Weather alerts in Washington County, Indiana, 2011

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

Washington County and its neighbors

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

Alerts: 207
Warnings: 73
Watches: 31
Advisories: 31
Busiest month: April68 alerts
Busiest day: April 23, 201111 alerts

Over time

By month

Warning verification

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

3 of 4 tornado warnings covering Washington County in 2011 had a tornado report inside them; 2 of 2 tornado reports fell inside a warning, on average 23 minutes after it went out.

Washington County, 2011

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	4	3	25%	2	100%	23 min
Severe thunderstorm warnings	19	8	58%	8	50%	12 min
Flash flood warnings	6	4	33%	5	80%	69 min

Each office's whole area, 2011

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Louisville, KY: tornado warnings	117	25	79%	64	69%	17 min
NWS Louisville, KY: severe thunderstorm warnings	473	205	57%	631	65%	16 min
NWS Louisville, KY: flash flood warnings	66	30	55%	72	71%	91 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
Dec 31, 11:45 PM EST	Special Weather Statement	LMK	15 min
Jan 8, 12:03 AM EST	Winter Weather Advisory	LMK	10 hr
Jan 10, 5:08 AM EST	Winter Weather Advisory	LMK	52 hr
Jan 18, 4:02 PM EST	Winter Storm Watch	LMK	22 hr
Jan 19, 2:04 PM EST	Winter Storm Warning	LMK	32 hr
Jan 19, 2:04 PM EST	Winter Weather Advisory	LMK	42 hr
Jan 25, 2:54 PM EST	Winter Weather Advisory	LMK	24 hr
Jan 30, 3:51 PM EST	Winter Storm Watch	LMK	24 hr
Jan 31, 4:04 PM EST	Winter Storm Warning	LMK	13 hr
Feb 1, 4:53 AM EST	Wind Advisory	LMK	32 hr
Feb 4, 3:27 AM EST	Winter Weather Advisory	LMK	35 hr
Feb 6, 2:45 PM EST	Winter Weather Advisory	LMK	31 hr
Feb 20, 11:43 AM EST	River Flood Warning	IND	21 days
Feb 22, 11:49 AM EST	River Flood Warning	IND	24 days
Feb 24, 10:36 PM EST	Areal Flood Advisory	LMK	3 hr
Feb 25, 12:24 PM EST	River Flood Warning	LMK	6 hr
Feb 27, 3:43 AM EST	Flood Watch	LMK	36 hr
Feb 27, 5:00 PM EST	Special Weather Statement	LMK	15 min
Feb 28, 2:05 AM EST	Mesoscale Discussion	SPC	25 min
Feb 28, 2:33 AM EST	Tornado Watch	SPC	7 hr
Feb 28, 3:09 AM EST	Severe Thunderstorm Warning	LMK	51 min
Feb 28, 3:31 AM EST	Tornado Warning	LMK	29 min
Feb 28, 4:01 AM EST	Severe Thunderstorm Warning	LMK	30 min
Mar 4, 3:28 AM EST	Flood Watch	LMK	40 hr
Mar 18, 6:36 PM EDT	Special Weather Statement	LMK	24 min
Mar 23, 12:02 PM EDT	Mesoscale Discussion	SPC	88 min
Mar 23, 1:13 PM EDT	Tornado Watch	SPC	7 hr
Mar 23, 1:56 PM EDT	Severe Thunderstorm Warning	LMK	34 min
Mar 23, 2:20 PM EDT	Severe Thunderstorm Warning	LMK	25 min
Mar 23, 2:29 PM EDT	Severe Thunderstorm Warning	LMK	29 min
Apr 1, 11:50 PM EDT	Special Weather Statement	LMK	25 min
Apr 2, 3:37 PM EDT	Wind Advisory	LMK	28 hr
Apr 3, 9:25 AM EDT	Red Flag Warning	LMK	10 hr
Apr 3, 9:04 PM EDT	Wind Advisory	LMK	18 hr
Apr 4, 7:53 AM EDT	Mesoscale Discussion	SPC	2 hr
Apr 4, 8:22 AM EDT	Tornado Watch	SPC	7 hr
Apr 4, 12:21 PM EDT	Special Weather Statement	LMK	24 min
Apr 4, 12:34 PM EDT	Tornado Watch	SPC	5 hr
Apr 4, 12:47 PM EDT	Special Weather Statement	LMK	28 min
Apr 4, 6:14 PM EDT	River Flood Warning	IND	5 days
Apr 5, 12:10 PM EDT	River Flood Warning	IND	38 days
Apr 6, 1:45 PM EDT	Red Flag Warning	LMK	5 hr
Apr 8, 1:02 PM EDT	Mesoscale Discussion	SPC	118 min
Apr 9, 7:41 AM EDT	Mesoscale Discussion	SPC	2 hr
Apr 9, 8:25 AM EDT	Severe Thunderstorm Watch	SPC	6 hr
Apr 9, 10:22 AM EDT	Severe Thunderstorm Warning	LMK	23 min
Apr 9, 10:43 AM EDT	Special Weather Statement	LMK	47 min
Apr 9, 9:23 PM EDT	River Flood Warning	IND	7 days
Apr 12, 8:00 AM EDT	Areal Flood Advisory	LMK	3 hr
Apr 15, 11:43 PM EDT	Special Weather Statement	LMK	32 min
Apr 16, 12:14 AM EDT	Special Weather Statement	LMK	31 min
Apr 19, 11:27 AM EDT	River Flood Warning	IND	20 days
Apr 19, 10:13 PM EDT	Tornado Watch	SPC	6 hr
Apr 19, 11:34 PM EDT	Tornado Warning	LMK	41 min
Apr 20, 12:17 AM EDT	Tornado Warning	LMK	43 min
Apr 20, 12:19 AM EDT	Severe Thunderstorm Warning	LMK	11 min
Apr 21, 11:34 AM EDT	River Flood Warning	IND	26 hr
Apr 21, 3:27 PM EDT	Flash Flood Watch	LMK	6 days
Apr 22, 2:14 PM EDT	Mesoscale Discussion	SPC	61 min
Apr 22, 2:31 PM EDT	Severe Thunderstorm Watch	SPC	4 hr
Apr 22, 4:12 PM EDT	Special Weather Statement	LMK	33 min
Apr 22, 6:49 PM EDT	Tornado Watch	SPC	7 hr
Apr 22, 10:20 PM EDT	Mesoscale Discussion	SPC	55 min
Apr 23, 12:13 AM EDT	Special Weather Statement	LMK	62 min
Apr 23, 2:04 AM EDT	Tornado Watch	SPC	4 hr
Apr 23, 4:41 AM EDT	Mesoscale Discussion	SPC	94 min
Apr 23, 4:59 AM EDT	Areal Flood Advisory	LMK	3 hr
Apr 23, 11:15 AM EDT	Special Weather Statement	LMK	30 min
Apr 23, 11:51 AM EDT	Mesoscale Discussion	SPC	84 min
Apr 23, 1:10 PM EDT	Flash Flood Warning	LMK	3 hr
Apr 23, 1:21 PM EDT	Special Weather Statement	LMK	39 min
Apr 23, 3:16 PM EDT	Flash Flood Warning	LMK	15 hr
Apr 23, 5:06 PM EDT	River Flood Warning	LMK	44 hr
Apr 24, 6:16 AM EDT	Areal Flood Warning	LMK	12 hr
Apr 24, 5:48 PM EDT	Areal Flood Warning	LMK	12 hr
Apr 25, 5:42 AM EDT	Areal Flood Warning	LMK	5 hr
Apr 25, 10:28 AM EDT	Areal Flood Warning	LMK	36 hr
Apr 26, 12:23 PM EDT	River Flood Warning	IND	38 hr
Apr 26, 5:38 PM EDT	Mesoscale Discussion	SPC	37 min
Apr 26, 5:50 PM EDT	Tornado Watch	SPC	5 hr
Apr 26, 7:19 PM EDT	Severe Thunderstorm Warning	LMK	41 min
Apr 26, 9:35 PM EDT	Mesoscale Discussion	SPC	55 min
Apr 26, 10:58 PM EDT	Tornado Watch	SPC	7 hr
Apr 26, 11:39 PM EDT	Areal Flood Warning	LMK	10 hr
Apr 27, 1:34 AM EDT	Flash Flood Warning	LMK	3 hr
Apr 27, 4:15 AM EDT	Special Weather Statement	LMK	60 min
Apr 27, 4:24 AM EDT	Flash Flood Warning	LMK	5 hr
Apr 27, 7:56 AM EDT	River Flood Warning	LMK	16 hr
Apr 27, 9:23 AM EDT	Areal Flood Warning	LMK	12 hr
Apr 27, 5:38 PM EDT	Mesoscale Discussion	SPC	37 min
Apr 27, 5:44 PM EDT	Tornado Watch	SPC	7 hr
Apr 27, 6:27 PM EDT	Mesoscale Discussion	SPC	63 min
Apr 27, 9:10 PM EDT	Areal Flood Warning	LMK	24 hr
Apr 27, 9:22 PM EDT	Mesoscale Discussion	SPC	53 min
Apr 27, 10:56 PM EDT	Special Weather Statement	LMK	49 min
Apr 28, 1:38 PM EDT	Mesoscale Discussion	SPC	97 min
Apr 28, 5:41 PM EDT	Special Weather Statement	LMK	64 min
Apr 30, 3:36 AM EDT	Flood Watch	LMK	3 days
May 2, 1:13 AM EDT	Areal Flood Advisory	LMK	6 hr
May 2, 4:12 AM EDT	Flash Flood Warning	LMK	3 hr
May 2, 6:51 AM EDT	Areal Flood Warning	LMK	3 hr
May 2, 9:40 AM EDT	Areal Flood Warning	LMK	4 hr
May 2, 11:03 AM EDT	River Flood Warning	LMK	24 hr
May 2, 2:02 PM EDT	Areal Flood Warning	LMK	27 hr
May 3, 6:07 AM EDT	River Flood Warning	LMK	16 hr
May 3, 4:43 PM EDT	Areal Flood Warning	LMK	24 hr
May 4, 3:37 PM EDT	Frost Advisory	LMK	17 hr
May 4, 4:48 PM EDT	Areal Flood Warning	LMK	24 hr
May 5, 4:45 PM EDT	Areal Flood Warning	LMK	24 hr
May 7, 8:15 PM EDT	Mesoscale Discussion	SPC	90 min
May 8, 7:05 AM EDT	Dense Fog Advisory	LMK	115 min
May 10, 1:10 PM EDT	Severe Thunderstorm Watch	SPC	7 hr
May 14, 3:14 PM EDT	Special Weather Statement	LMK	31 min
May 22, 3:44 AM EDT	Dense Fog Advisory	LMK	6 hr
May 22, 2:18 PM EDT	Severe Thunderstorm Watch	SPC	7 hr
May 22, 4:01 PM EDT	Severe Thunderstorm Warning	LMK	29 min
May 23, 1:11 AM EDT	Special Weather Statement	LMK	19 min
May 23, 2:05 AM EDT	Special Weather Statement	LMK	25 min
May 23, 4:03 AM EDT	Special Weather Statement	LMK	27 min
May 23, 4:19 AM EDT	Severe Thunderstorm Warning	LMK	26 min
May 23, 3:52 PM EDT	Mesoscale Discussion	SPC	53 min
May 23, 4:28 PM EDT	Severe Thunderstorm Watch	SPC	6 hr
May 23, 5:28 PM EDT	Severe Thunderstorm Warning	LMK	32 min
May 23, 5:51 PM EDT	Severe Thunderstorm Warning	LMK	24 min
May 23, 6:20 PM EDT	Mesoscale Discussion	SPC	55 min
May 25, 11:18 AM EDT	Mesoscale Discussion	SPC	57 min
May 25, 12:09 PM EDT	Tornado Watch PDS	SPC	10 hr
May 25, 6:19 PM EDT	Mesoscale Discussion	SPC	86 min
May 25, 7:25 PM EDT	Mesoscale Discussion	SPC	2 hr
May 25, 8:40 PM EDT	Mesoscale Discussion	SPC	2 hr
May 25, 9:33 PM EDT	Tornado Watch	SPC	7 hr
May 25, 10:25 PM EDT	Tornado Warning	LMK	35 min
May 26, 12:50 PM EDT	River Flood Warning	IND	5 days
May 26, 3:02 PM EDT	River Flood Warning	IND	7 days
Jun 9, 6:31 PM EDT	Mesoscale Discussion	SPC	89 min
Jun 10, 4:48 PM EDT	Mesoscale Discussion	SPC	87 min
Jun 10, 8:34 PM EDT	Mesoscale Discussion	SPC	56 min
Jun 11, 1:40 AM EDT	Mesoscale Discussion	SPC	2 hr
Jun 11, 4:13 AM EDT	Severe Thunderstorm Warning	LMK	32 min
Jun 11, 4:21 AM EDT	Areal Flood Advisory	LMK	3 hr
Jun 15, 6:00 AM EDT	Special Weather Statement	LMK	45 min
Jun 15, 6:58 AM EDT	Special Weather Statement	LMK	32 min
Jun 15, 6:04 PM EDT	Severe Thunderstorm Watch	SPC	4 hr
Jun 15, 8:16 PM EDT	Mesoscale Discussion	SPC	59 min
Jun 17, 2:34 PM EDT	Mesoscale Discussion	SPC	26 min
Jun 19, 3:55 AM EDT	Tornado Watch	SPC	6 hr
Jun 19, 6:46 AM EDT	Mesoscale Discussion	SPC	59 min
Jun 19, 8:06 AM EDT	Special Weather Statement	LMK	24 min
Jun 20, 11:21 AM EDT	River Flood Warning	IND	4 days
Jun 21, 3:33 PM EDT	Special Weather Statement	LMK	27 min
Jun 21, 3:36 PM EDT	Severe Thunderstorm Warning	LMK	24 min
Jun 22, 9:11 AM EDT	River Flood Warning	IND	10 days
Jun 22, 4:43 PM EDT	Mesoscale Discussion	SPC	92 min
Jun 26, 2:21 AM EDT	Mesoscale Discussion	SPC	84 min
Jun 26, 2:58 AM EDT	Severe Thunderstorm Watch	SPC	4 hr
Jun 26, 3:08 AM EDT	Special Weather Statement	LMK	52 min
Jun 26, 3:52 AM EDT	Flash Flood Warning	LMK	3 hr
Jun 26, 3:57 AM EDT	Special Weather Statement	LMK	48 min
Jun 26, 4:03 AM EDT	Severe Thunderstorm Warning	LMK	27 min
Jun 26, 6:46 AM EDT	Areal Flood Advisory	LMK	3 hr
Jun 27, 4:14 AM EDT	Mesoscale Discussion	SPC	91 min
Jun 27, 8:08 AM EDT	Areal Flood Advisory	LMK	3 hr
Jul 3, 8:23 PM EDT	Special Weather Statement	LMK	22 min
Jul 3, 8:58 PM EDT	Special Weather Statement	LMK	32 min
Jul 10, 3:50 AM EDT	Heat Advisory	LMK	40 hr
Jul 11, 3:41 AM EDT	Excessive Heat Warning	LMK	16 hr
Jul 11, 2:57 PM EDT	Heat Advisory	LMK	29 hr
Jul 12, 3:13 AM EDT	Excessive Heat Warning	LMK	16 hr
Jul 17, 3:53 PM EDT	Excessive Heat Watch	LMK	48 hr
Jul 18, 3:46 PM EDT	Heat Advisory	LMK	29 hr
Jul 19, 3:54 PM EDT	Excessive Heat Warning	LMK	5 days
Jul 19, 7:57 PM EDT	Special Weather Statement	LMK	48 min
Jul 19, 11:51 PM EDT	Special Weather Statement	LMK	24 min
Jul 20, 6:26 PM EDT	Mesoscale Discussion	SPC	94 min
Jul 24, 1:42 PM EDT	Mesoscale Discussion	SPC	2 hr
Jul 24, 1:42 PM EDT	Mesoscale Discussion	SPC	2 hr
Jul 27, 3:11 PM EDT	Heat Advisory	LMK	29 hr
Jul 29, 3:31 AM EDT	Heat Advisory	LMK	15 hr
Aug 7, 4:34 AM EDT	Areal Flood Advisory	LMK	3 hr
Aug 10, 12:09 AM EDT	Special Weather Statement	LMK	51 min
Aug 18, 5:49 PM EDT	Special Weather Statement	LMK	26 min
Aug 18, 6:18 PM EDT	Areal Flood Advisory	LMK	91 min
Aug 20, 6:59 AM EDT	Dense Fog Advisory	LMK	2 hr
Aug 24, 9:56 PM EDT	Mesoscale Discussion	SPC	94 min
Sep 2, 5:43 PM EDT	Severe Thunderstorm Warning	LMK	17 min
Sep 3, 4:15 AM EDT	Heat Advisory	LMK	15 hr
Sep 4, 5:00 AM EDT	Special Weather Statement	LMK	30 min
Sep 11, 5:26 PM EDT	Special Weather Statement	LMK	49 min
Sep 25, 8:49 PM EDT	Mesoscale Discussion	SPC	2 hr
Oct 1, 3:11 PM EDT	Frost Advisory	LMK	18 hr
Oct 15, 3:58 PM EDT	Fire Weather Watch	LMK	11 hr
Oct 21, 3:36 AM EDT	Frost Advisory	LMK	29 hr
Nov 12, 2:40 PM EST	Wind Advisory	LMK	26 hr
Nov 14, 6:32 PM EST	Mesoscale Discussion	SPC	88 min
Nov 14, 7:26 PM EST	Severe Thunderstorm Warning	LMK	34 min
Nov 14, 7:49 PM EST	Severe Thunderstorm Watch	SPC	3 hr
Nov 14, 7:54 PM EST	Severe Thunderstorm Warning	LMK	36 min
Nov 14, 8:21 PM EST	Severe Thunderstorm Warning	LMK	24 min
Nov 27, 10:22 AM EST	Flood Watch	LMK	41 hr
Nov 29, 11:38 AM EST	River Flood Warning	IND	11 days
Nov 29, 11:38 AM EST	River Flood Warning	IND	15 days
Dec 3, 3:41 PM EST	Flood Watch	LMK	53 hr
Dec 5, 12:07 AM EST	River Flood Warning	LMK	36 hr
Dec 5, 8:40 PM EST	River Flood Warning	IND	14 hr
Dec 15, 12:24 PM EST	River Flood Warning	IND	3 days
Dec 16, 10:17 AM EST	River Flood Warning	IND	6 days
Dec 21, 11:17 AM EST	River Flood Warning	IND	3 days

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	19
Tornado Warning	4
Severe Thunderstorm Watch	8
Tornado Watch	13
Mesoscale Discussion	38
Special Weather Statement	34
Flooding
Areal Flood Warning	13
Flash Flood Warning	6
River Flood Warning	24
Flash Flood Watch	1
Flood Watch	5
Areal Flood Advisory	9
Winter
Winter Storm Warning	2
Winter Storm Watch	2
Winter Weather Advisory	6
Heat
Excessive Heat Warning	3
Excessive Heat Watch	1
Heat Advisory	6
Cold
Frost Advisory	3
Wind and dust
Wind Advisory	4
Fire
Red Flag Warning	2
Fire Weather Watch	1
Fog and smoke
Dense 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 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.