Alert archive / North Carolina / Tornado Warnings
Tornado Warnings in North Carolina, 2013
37 tornado warnings in 2013. An alert counts here when it covered any part of the state, so the counties below add up to more than the state. The archive of tornado warnings reaches back to 1986.
Tornado Warnings by county
Each county as a circle sized by its count in 2013. Tap one for its archive.
- Tornado Warnings
- 37
- Busiest month
- June21 tornado warnings
- Busiest day
- June 7, 20139 tornado warnings
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
8 of 37 tornado warnings covering North Carolina in 2013 had a tornado report inside them; 10 of 13 tornado reports fell inside a warning, on average 14 minutes after it went out.
North Carolina, 2013
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 37 | 8 | 78% | 13 | 77% | 14 min |
Each office's whole area, 2013
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Blacksburg, VA: tornado warnings | 3 | 0 | 100% | 1 | 0% | |
| NWS Morristown, TN: tornado warnings | 8 | 2 | 75% | 2 | 50% | 38 min |
| NWS Greenville-Spartanburg, SC: tornado warnings | 11 | 3 | 73% | 6 | 83% | 14 min |
| NWS Raleigh, NC: tornado warnings | 11 | 4 | 64% | 6 | 83% | 10 min |
| NWS Wilmington, NC: tornado warnings | 7 | 1 | 86% | 1 | 100% | 5 min |
| NWS Newport/Morehead City, NC: tornado warnings | 11 | 2 | 82% | 4 | 75% | 25 min |
| NWS Wakefield, VA: tornado warnings | 18 | 2 | 89% | 3 | 100% | 16 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 | Counties | Lasted |
|---|---|---|---|---|
| Jan 30, 12:08 PM EST | Tornado Warning | MRX | Cherokee, Clay | 37 min |
| Jan 30, 12:45 PM EST | Tornado Warning | MRX | Cherokee, Clay | 30 min |
| Jan 30, 3:54 PM EST | Tornado Warning | GSP | Transylvania | 36 min |
| Jan 30, 5:28 PM EST | Tornado Warning | GSP | Polk, Rutherford | 32 min |
| Apr 19, 3:30 PM EDT | Tornado Warning | RAH | Alamance, Orange | 30 min |
| Apr 19, 3:39 PM EDT | Tornado Warning | RAH | Guilford | 36 min |
| Apr 19, 3:53 PM EDT | Tornado Warning | RAH | Durham, Orange, Person | 37 min |
| Apr 19, 4:21 PM EDT | Tornado Warning | RAH | Granville | 24 min |
| Apr 19, 5:28 PM EDT | Tornado Warning | RAH | Chatham, Moore, Randolph | 32 min |
| Jun 7, 1:17 AM EDT | Tornado Warning | ILM | Brunswick, Columbus | 28 min |
| Jun 7, 3:01 AM EDT | Tornado Warning | MHX | Jones, Onslow | 29 min |
| Jun 7, 3:11 AM EDT | Tornado Warning | MHX | Carteret, Jones, Onslow | 34 min |
| Jun 7, 4:09 AM EDT | Tornado Warning | MHX | Jones, Onslow | 51 min |
| Jun 7, 4:21 AM EDT | Tornado Warning | MHX | Onslow | 24 min |
| Jun 7, 4:49 AM EDT | Tornado Warning | ILM | Pender | 26 min |
| Jun 7, 4:57 AM EDT | Tornado Warning | MHX | Carteret, Craven, Jones, Onslow | 48 min |
| Jun 7, 5:51 AM EDT | Tornado Warning | MHX | Carteret | 39 min |
| Jun 7, 8:06 AM EDT | Tornado Warning | MHX | Dare, Hyde | 39 min |
| Jun 10, 6:04 PM EDT | Tornado Warning | RAH | Franklin | 11 min |
| Jun 10, 6:14 PM EDT | Tornado Warning | RAH | Franklin, Warren | 31 min |
| Jun 10, 6:19 PM EDT | Tornado Warning | AKQ | Camden, Gates | 26 min |
| Jun 13, 3:56 PM EDT | Tornado Warning | GSP | Buncombe, Haywood, Jackson, Swain | 49 min |
| Jun 17, 7:04 PM EDT | Tornado Warning | MHX | Hyde | 41 min |
| Jun 18, 6:14 PM EDT | Tornado Warning | RAH | Franklin, Wake | 31 min |
| Jun 18, 6:42 PM EDT | Tornado Warning | RAH | Franklin, Nash | 48 min |
| Jun 18, 7:35 PM EDT | Tornado Warning | RAH | Edgecombe, Nash | 40 min |
| Jun 18, 9:32 PM EDT | Tornado Warning | AKQ | Bertie, Chowan, Hertford, Perquimans | 28 min |
| Jun 29, 4:48 PM EDT | Tornado Warning | ILM | Brunswick, Columbus | 27 min |
| Jun 29, 6:38 PM EDT | Tornado Warning | ILM | Brunswick, Columbus | 37 min |
| Jun 30, 1:10 PM EDT | Tornado Warning | ILM | Bladen, Columbus | 50 min |
| Jul 2, 12:19 PM EDT | Tornado Warning | RAH | Person | 26 min |
| Oct 7, 9:10 AM EDT | Tornado Warning | RNK | Caswell, Rockingham | 35 min |
| Nov 26, 9:45 PM EST | Tornado Warning | ILM | Brunswick, Columbus, New Hanover, Pender | 45 min |
| Nov 26, 10:16 PM EST | Tornado Warning | MHX | Carteret, Craven | 29 min |
| Nov 26, 10:21 PM EST | Tornado Warning | MHX | Craven | 39 min |
| Nov 26, 11:42 PM EST | Tornado Warning | ILM | Pender | 33 min |
| Nov 27, 12:08 AM EST | Tornado Warning | MHX | Duplin, Jones, Onslow | 37 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Onslow County6
- Columbus County5
- Jones County5
- Brunswick County4
- Carteret County4
- Franklin County4
- Pender County3
- Craven County3
- Cherokee County2
- Clay County2
- Orange County2
- Person County2
- Hyde County2
- Nash County2
- Transylvania County1
- Polk County1
- Rutherford County1
- Alamance County1
- Guilford County1
- Durham County1
- Granville County1
- Chatham County1
- Moore County1
- Randolph County1
- Dare County1
- Warren County1
- Camden County1
- Gates County1
- Buncombe County1
- Haywood County1
- Jackson County1
- Swain County1
- Wake County1
- Edgecombe County1
- Bertie County1
- Chowan County1
- Hertford County1
- Perquimans County1
- Bladen County1
- Caswell County1
3 more counties
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20122014
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.