Alert archive / North Carolina / Alamance County
Weather alerts in Alamance County, North Carolina, 2014
125 weather alerts in 2014, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Alamance County and its neighbors
Each county as a circle sized by its count in 2014. Tap one for its archive.
- Alerts
- 125
- Warnings
- 30
- Watches
- 15
- Advisories
- 26
- Busiest month
- March22 alerts
- Busiest day
- April 25, 201410 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 1 tornado warnings covering Alamance County in 2014 had a tornado report inside them.
Alamance County, 2014
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 1 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 18 | 16 | 11% | 12 | 67% | 19 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2014
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Raleigh, NC: tornado warnings | 34 | 9 | 74% | 15 | 100% | 17 min |
| NWS Raleigh, NC: severe thunderstorm warnings | 197 | 144 | 27% | 375 | 88% | 23 min |
| NWS Raleigh, NC: flash flood warnings | 35 | 25 | 29% | 54 | 93% | 87 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 6, 2:49 AM EST | Wind Chill Advisory | RAH | 32 hr |
| Jan 11, 8:26 AM EST | Special Weather Statement | RAH | 49 min |
| Jan 11, 9:38 AM EST | Special Weather Statement | RAH | 52 min |
| Jan 11, 11:12 AM EST | Mesoscale Discussion | SPC | 63 min |
| Jan 11, 11:50 AM EST | Tornado Watch | SPC | 6 hr |
| Jan 11, 12:11 PM EST | Areal Flood Advisory | RAH | 3 hr |
| Jan 11, 12:50 PM EST | Severe Thunderstorm Warning | RAH | 55 min |
| Jan 11, 1:23 PM EST | Tornado Warning | RAH | 37 min |
| Jan 11, 4:55 PM EST | River Flood Warning | RAH | 23 hr |
| Jan 15, 1:46 AM EST | Dense Fog Advisory | RAH | 8 hr |
| Jan 21, 4:49 AM EST | Winter Weather Advisory | RAH | 31 hr |
| Jan 23, 3:09 PM EST | Wind Chill Advisory | RAH | 18 hr |
| Jan 24, 3:33 PM EST | Fire Weather Watch | RAH | 13 hr |
| Jan 25, 4:11 AM EST | Red Flag Warning | RAH | 13 hr |
| Jan 27, 3:17 PM EST | Winter Weather Advisory | RAH | 69 hr |
| Feb 10, 4:38 AM EST | Winter Storm Watch | RAH | 32 hr |
| Feb 11, 7:13 AM EST | Winter Storm Warning | RAH | 59 hr |
| Feb 12, 11:13 AM EST | Mesoscale Discussion | SPC | 6 hr |
| Feb 12, 7:40 PM EST | Mesoscale Discussion | SPC | 6 hr |
| Feb 13, 8:51 AM EST | Mesoscale Discussion | SPC | 5 hr |
| Feb 13, 1:43 PM EST | Mesoscale Discussion | SPC | 5 hr |
| Feb 13, 6:07 PM EST | Winter Weather Advisory | RAH | 16 hr |
| Feb 21, 8:57 AM EST | Mesoscale Discussion | SPC | 63 min |
| Feb 21, 9:28 AM EST | Severe Thunderstorm Warning | RAH | 47 min |
| Feb 21, 9:52 AM EST | Severe Thunderstorm Warning | RAH | 53 min |
| Feb 21, 10:02 AM EST | Tornado Watch | SPC | 6 hr |
| Feb 21, 12:19 PM EST | Special Weather Statement | RAH | 86 min |
| Mar 2, 4:09 PM EST | Winter Weather Advisory | RAH | 44 hr |
| Mar 6, 4:41 AM EST | Winter Weather Advisory | RAH | 34 hr |
| Mar 6, 2:51 PM EST | Winter Storm Warning | RAH | 24 hr |
| Mar 6, 8:04 PM EST | Mesoscale Discussion | SPC | 4 hr |
| Mar 7, 12:37 AM EST | Mesoscale Discussion | SPC | 4 hr |
| Mar 7, 4:21 AM EST | Wind Advisory | RAH | 8 hr |
| Mar 7, 7:11 AM EST | Areal Flood Warning | RAH | 6 hr |
| Mar 7, 9:17 AM EST | Special Weather Statement | RAH | 43 min |
| Mar 7, 12:05 PM EST | Areal Flood Warning | RAH | 6 hr |
| Mar 7, 2:45 PM EST | Winter Weather Advisory | RAH | 18 hr |
| Mar 7, 5:06 PM EST | River Flood Warning | RAH | 40 hr |
| Mar 12, 4:07 AM EDT | Wind Advisory | RAH | 20 hr |
| Mar 12, 2:48 PM EDT | Fire Weather Watch | RAH | 13 hr |
| Mar 12, 4:21 PM EDT | Mesoscale Discussion | SPC | 114 min |
| Mar 12, 4:58 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Mar 12, 5:13 PM EDT | Severe Thunderstorm Warning | RAH | 62 min |
| Mar 12, 5:53 PM EDT | Severe Thunderstorm Warning | RAH | 52 min |
| Mar 13, 3:36 AM EDT | Red Flag Warning | RAH | 14 hr |
| Mar 13, 3:24 PM EDT | Fire Weather Watch | RAH | 12 hr |
| Mar 16, 3:47 AM EDT | Winter Weather Advisory | RAH | 56 hr |
| Mar 29, 3:17 AM EDT | Dense Fog Advisory | RAH | 7 hr |
| Mar 30, 3:38 AM EDT | Wind Advisory | RAH | 17 hr |
| Apr 7, 9:17 AM EDT | Areal Flood Advisory | RAH | 4 hr |
| Apr 14, 3:37 PM EDT | Freeze Watch | RAH | 12 hr |
| Apr 15, 4:00 AM EDT | Freeze Warning | RAH | 29 hr |
| Apr 15, 4:43 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 15, 3:42 PM EDT | Special Weather Statement | RAH | 93 min |
| Apr 15, 4:02 PM EDT | Freeze Watch | RAH | 24 hr |
| Apr 16, 4:14 AM EDT | Freeze Warning | RAH | 29 hr |
| Apr 17, 3:24 PM EDT | Frost Advisory | RAH | 7 hr |
| Apr 25, 12:46 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 25, 1:04 PM EDT | Special Weather Statement | RAH | 41 min |
| Apr 25, 1:19 PM EDT | Tornado Watch | SPC | 10 hr |
| Apr 25, 1:21 PM EDT | Severe Thunderstorm Warning | RAH | 39 min |
| Apr 25, 1:53 PM EDT | Severe Thunderstorm Warning | RAH | 52 min |
| Apr 25, 3:22 PM EDT | Mesoscale Discussion | SPC | 83 min |
| Apr 25, 3:35 PM EDT | Special Weather Statement | RAH | 40 min |
| Apr 25, 4:18 PM EDT | Severe Thunderstorm Warning | RAH | 57 min |
| Apr 25, 4:45 PM EDT | Mesoscale Discussion | SPC | 90 min |
| Apr 25, 5:20 PM EDT | Special Weather Statement | RAH | 55 min |
| Apr 28, 4:01 PM EDT | Flash Flood Watch | RAH | 50 hr |
| Apr 29, 12:39 PM EDT | Special Weather Statement | RAH | 51 min |
| Apr 29, 1:26 PM EDT | Mesoscale Discussion | SPC | 94 min |
| May 9, 7:34 PM EDT | Special Weather Statement | RAH | 56 min |
| May 10, 3:03 PM EDT | Special Weather Statement | RAH | 57 min |
| May 10, 4:22 PM EDT | Special Weather Statement | RAH | 53 min |
| May 15, 3:55 AM EDT | Flash Flood Watch | RAH | 25 hr |
| May 15, 8:29 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 15, 11:14 AM EDT | Special Weather Statement | RAH | 46 min |
| May 15, 11:56 AM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| May 15, 6:24 PM EDT | Mesoscale Discussion | SPC | 96 min |
| May 27, 3:23 PM EDT | Special Weather Statement | RAH | 52 min |
| May 27, 3:35 PM EDT | Severe Thunderstorm Warning | RAH | 40 min |
| Jun 4, 2:37 PM EDT | Special Weather Statement | RAH | 53 min |
| Jun 9, 8:59 PM EDT | Severe Thunderstorm Warning | RAH | 46 min |
| Jun 11, 12:21 AM EDT | Special Weather Statement | RAH | 24 min |
| Jun 11, 12:43 AM EDT | Special Weather Statement | RAH | 62 min |
| Jun 11, 2:25 PM EDT | Mesoscale Discussion | SPC | 95 min |
| Jun 11, 2:31 PM EDT | Special Weather Statement | RAH | 59 min |
| Jun 11, 2:42 PM EDT | Severe Thunderstorm Warning | RAH | 48 min |
| Jun 11, 5:54 PM EDT | Severe Thunderstorm Warning | RAH | 66 min |
| Jun 11, 6:23 PM EDT | Areal Flood Advisory | RAH | 3 hr |
| Jun 11, 9:25 PM EDT | Special Weather Statement | RAH | 50 min |
| Jun 11, 10:45 PM EDT | Special Weather Statement | RAH | 60 min |
| Jun 16, 6:45 PM EDT | Severe Thunderstorm Warning | RAH | 45 min |
| Jun 19, 2:28 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 19, 3:54 PM EDT | Special Weather Statement | RAH | 66 min |
| Jun 19, 4:05 PM EDT | Severe Thunderstorm Warning | RAH | 40 min |
| Jun 19, 4:30 PM EDT | Areal Flood Advisory | RAH | 2 hr |
| Jun 19, 4:41 PM EDT | Severe Thunderstorm Warning | RAH | 49 min |
| Jun 19, 6:16 PM EDT | Mesoscale Discussion | SPC | 59 min |
| Jun 20, 3:47 PM EDT | Special Weather Statement | RAH | 73 min |
| Jun 20, 4:57 PM EDT | Special Weather Statement | RAH | 63 min |
| Jun 27, 2:54 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 2, 12:05 PM EDT | Mesoscale Discussion | SPC | 55 min |
| Jul 3, 2:12 PM EDT | Special Weather Statement | RAH | 63 min |
| Jul 9, 1:51 PM EDT | Mesoscale Discussion | SPC | 84 min |
| Jul 14, 12:50 PM EDT | Mesoscale Discussion | SPC | 85 min |
| Jul 15, 4:27 PM EDT | Areal Flood Advisory | RAH | 3 hr |
| Jul 20, 11:36 PM EDT | Areal Flood Advisory | RAH | 3 hr |
| Jul 23, 5:35 AM EDT | Dense Fog Advisory | RAH | 3 hr |
| Jul 27, 11:28 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 3, 6:16 AM EDT | Dense Fog Advisory | RAH | 3 hr |
| Aug 12, 5:05 PM EDT | Special Weather Statement | RAH | 55 min |
| Aug 12, 5:27 PM EDT | Severe Thunderstorm Warning | RAH | 48 min |
| Aug 12, 6:20 PM EDT | Special Weather Statement | RAH | 55 min |
| Aug 18, 4:38 PM EDT | Severe Thunderstorm Warning | RAH | 44 min |
| Aug 18, 5:49 PM EDT | Mesoscale Discussion | SPC | 56 min |
| Aug 18, 6:04 PM EDT | Severe Thunderstorm Warning | RAH | 56 min |
| Aug 22, 4:50 PM EDT | Mesoscale Discussion | SPC | 85 min |
| Sep 4, 1:01 AM EDT | Special Weather Statement | RAH | 44 min |
| Sep 11, 8:44 PM EDT | Special Weather Statement | RAH | 61 min |
| Sep 30, 3:25 AM EDT | Dense Fog Advisory | RAH | 6 hr |
| Oct 1, 3:36 AM EDT | Dense Fog Advisory | RAH | 6 hr |
| Oct 11, 2:57 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Nov 1, 2:58 PM EDT | Freeze Watch | RAH | 13 hr |
| Nov 2, 3:14 AM EST | Freeze Warning | RAH | 29 hr |
| Dec 24, 4:23 PM EST | Dense Fog Advisory | RAH | 4 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 | 18 |
| Tornado Warning | 1 |
| Severe Thunderstorm Watch | 3 |
| Tornado Watch | 3 |
| Mesoscale Discussion | 26 |
| Special Weather Statement | 28 |
| Flooding | |
| Areal Flood Warning | 2 |
| River Flood Warning | 2 |
| Flash Flood Watch | 2 |
| Areal Flood Advisory | 6 |
| Winter | |
| Winter Storm Warning | 2 |
| Winter Storm Watch | 1 |
| Winter Weather Advisory | 7 |
| Cold | |
| Freeze Warning | 3 |
| Freeze Watch | 3 |
| Frost Advisory | 1 |
| Wind Chill Advisory | 2 |
| Wind and dust | |
| Wind Advisory | 3 |
| Fire | |
| Red Flag Warning | 2 |
| Fire Weather Watch | 3 |
| Fog and smoke | |
| Dense Fog Advisory | 7 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20132015
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.