Alert archive / Pennsylvania / Northampton County
Weather alerts in Northampton County, Pennsylvania, 2014
167 weather alerts in 2014, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Northampton County and its neighbors
Each county as a circle sized by its count in 2014. Tap one for its archive.
- Alerts
- 167
- Warnings
- 38
- Watches
- 26
- Advisories
- 39
- Busiest month
- July57 alerts
- Busiest day
- July 14, 201413 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 Northampton County in 2014 had a tornado report inside them.
Northampton 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 | 20 | 17 | 15% | 8 | 88% | 26 min |
| Flash flood warnings | 3 | 3 | 0% | 3 | 100% | 82 min |
Each office's whole area, 2014
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Philadelphia/Mount Holly: tornado warnings | 6 | 1 | 83% | 1 | 100% | 20 min |
| NWS Philadelphia/Mount Holly: severe thunderstorm warnings | 167 | 91 | 46% | 267 | 80% | 24 min |
| NWS Philadelphia/Mount Holly: flash flood warnings | 57 | 32 | 44% | 70 | 96% | 60 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 1, 3:53 AM EST | Winter Storm Watch | PHI | 11 hr |
| Jan 1, 2:35 PM EST | Winter Storm Warning | PHI | 46 hr |
| Jan 4, 2:30 PM EST | Freezing Rain Advisory | PHI | 22 hr |
| Jan 5, 12:07 PM EST | Mesoscale Discussion | SPC | 6 hr |
| Jan 5, 12:39 PM EST | Freezing Rain Advisory | PHI | 12 hr |
| Jan 5, 9:10 PM EST | Dense Fog Advisory | PHI | 9 hr |
| Jan 6, 3:30 AM EST | Wind Chill Advisory | PHI | 42 hr |
| Jan 8, 5:04 PM EST | Areal Flood Warning | PHI | 42 hr |
| Jan 9, 3:26 PM EST | Freezing Rain Advisory | PHI | 21 hr |
| Jan 10, 3:17 AM EST | Flood Watch | PHI | 42 hr |
| Jan 10, 7:07 PM EST | Freezing Rain Advisory | PHI | 9 hr |
| Jan 11, 12:56 PM EST | Areal Flood Advisory | PHI | 8 hr |
| Jan 11, 1:53 PM EST | Special Weather Statement | PHI | 97 min |
| Jan 11, 2:42 PM EST | Areal Flood Advisory | PHI | 6 hr |
| Jan 14, 10:40 PM EST | Dense Fog Advisory | PHI | 13 hr |
| Jan 20, 2:58 PM EST | Winter Storm Warning | PHI | 37 hr |
| Jan 20, 2:58 PM EST | Winter Weather Advisory | PHI | 31 hr |
| Jan 21, 4:02 AM EST | Wind Chill Advisory | PHI | 50 hr |
| Jan 21, 9:19 AM EST | Special Weather Statement | PHI | 3 hr |
| Jan 21, 11:03 AM EST | Mesoscale Discussion | SPC | 6 hr |
| Jan 21, 4:28 PM EST | Mesoscale Discussion | SPC | 6 hr |
| Jan 24, 2:10 PM EST | Winter Weather Advisory | PHI | 30 hr |
| Jan 25, 10:54 PM EST | Special Weather Statement | PHI | 51 min |
| Jan 26, 3:07 PM EST | Wind Chill Advisory | PHI | 44 hr |
| Feb 2, 3:37 PM EST | Winter Storm Warning | PHI | 24 hr |
| Feb 2, 3:37 PM EST | Winter Weather Advisory | PHI | 24 hr |
| Feb 3, 4:44 AM EST | Mesoscale Discussion | SPC | 4 hr |
| Feb 3, 3:11 PM EST | Winter Storm Watch | PHI | 13 hr |
| Feb 4, 3:45 AM EST | Winter Storm Warning | PHI | 36 hr |
| Feb 11, 3:43 PM EST | Winter Storm Watch | PHI | 12 hr |
| Feb 11, 3:43 PM EST | Winter Storm Warning | PHI | 61 hr |
| Feb 13, 8:00 AM EST | Mesoscale Discussion | SPC | 5 hr |
| Feb 13, 9:07 PM EST | Mesoscale Discussion | SPC | 6 hr |
| Feb 14, 3:36 PM EST | Winter Weather Advisory | PHI | 28 hr |
| Feb 17, 2:40 PM EST | Winter Weather Advisory | PHI | 18 hr |
| Feb 18, 2:52 PM EST | Freezing Rain Advisory | PHI | 22 hr |
| Feb 19, 5:57 AM EST | Mesoscale Discussion | SPC | 3 hr |
| Feb 21, 4:27 AM EST | Dense Fog Advisory | PHI | 11 hr |
| Mar 1, 4:02 AM EST | Winter Storm Watch | PHI | 24 hr |
| Mar 2, 3:56 AM EST | Winter Weather Advisory | PHI | 29 hr |
| Mar 12, 4:05 AM EDT | Wind Advisory | PHI | 35 hr |
| Mar 12, 5:20 PM EDT | Special Weather Statement | PHI | 55 min |
| Mar 12, 6:17 PM EDT | Special Weather Statement | PHI | 88 min |
| Mar 28, 3:21 PM EDT | Flood Watch | PHI | 59 hr |
| Mar 29, 10:12 PM EDT | Areal Flood Advisory | PHI | 4 hr |
| Mar 30, 3:50 AM EDT | Winter Weather Advisory | PHI | 24 hr |
| Apr 22, 3:23 PM EDT | Fire Weather Watch | PHI | 13 hr |
| Apr 22, 6:54 PM EDT | Special Weather Statement | PHI | 51 min |
| Apr 22, 7:07 PM EDT | Mesoscale Discussion | SPC | 113 min |
| Apr 23, 4:03 AM EDT | Fire Weather Watch | PHI | 15 hr |
| Apr 23, 4:03 AM EDT | Red Flag Warning | PHI | 15 hr |
| Apr 23, 7:27 PM EDT | Red Flag Warning | PHI | 26 hr |
| Apr 24, 3:24 PM EDT | Freeze Warning | PHI | 17 hr |
| Apr 28, 3:04 PM EDT | Flood Watch | PHI | 61 hr |
| Apr 30, 11:06 AM EDT | Areal Flood Advisory | PHI | 3 hr |
| Apr 30, 1:35 PM EDT | Areal Flood Warning | PHI | 16 hr |
| May 1, 5:31 AM EDT | Areal Flood Advisory | PHI | 4 hr |
| May 10, 2:23 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 15, 3:56 AM EDT | Flash Flood Watch | PHI | 45 hr |
| May 16, 9:56 AM EDT | Areal Flood Advisory | PHI | 7 hr |
| May 16, 2:51 PM EDT | Areal Flood Warning | PHI | 6 hr |
| May 16, 3:58 PM EDT | Areal Flood Warning | PHI | 8 hr |
| May 19, 5:59 PM EDT | Special Weather Statement | PHI | 31 min |
| May 19, 7:17 PM EDT | Special Weather Statement | PHI | 43 min |
| May 22, 11:49 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 22, 12:39 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 22, 1:19 PM EDT | Mesoscale Discussion | SPC | 116 min |
| May 22, 2:40 PM EDT | Severe Thunderstorm Warning | PHI | 50 min |
| May 22, 3:21 PM EDT | Special Weather Statement | PHI | 24 min |
| May 22, 3:27 PM EDT | Severe Thunderstorm Warning | PHI | 33 min |
| May 27, 1:43 PM EDT | Mesoscale Discussion | SPC | 62 min |
| May 27, 2:13 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 13, 4:28 AM EDT | Special Weather Statement | PHI | 62 min |
| Jun 13, 11:54 AM EDT | Flash Flood Watch | PHI | 11 hr |
| Jun 13, 1:25 PM EDT | Flash Flood Warning | PHI | 4 hr |
| Jun 13, 2:16 PM EDT | Special Weather Statement | PHI | 119 min |
| Jun 13, 2:42 PM EDT | Severe Thunderstorm Warning | PHI | 63 min |
| Jun 13, 2:52 PM EDT | Areal Flood Advisory | PHI | 4 hr |
| Jun 13, 3:14 PM EDT | Special Weather Statement | PHI | 2 hr |
| Jun 13, 3:38 PM EDT | Severe Thunderstorm Warning | PHI | 52 min |
| Jun 13, 9:47 PM EDT | Special Weather Statement | PHI | 88 min |
| Jun 25, 1:49 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 25, 5:44 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Jun 25, 6:53 PM EDT | Areal Flood Advisory | PHI | 4 hr |
| Jun 25, 8:10 PM EDT | Severe Thunderstorm Warning | PHI | 50 min |
| Jun 25, 8:29 PM EDT | Areal Flood Advisory | PHI | 4 hr |
| Jul 2, 10:28 AM EDT | Mesoscale Discussion | SPC | 62 min |
| Jul 2, 11:14 AM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 2, 3:36 PM EDT | Flash Flood Watch | PHI | 46 hr |
| Jul 2, 3:58 PM EDT | Areal Flood Advisory | PHI | 4 hr |
| Jul 2, 4:03 PM EDT | Severe Thunderstorm Warning | PHI | 57 min |
| Jul 2, 4:27 PM EDT | Mesoscale Discussion | SPC | 93 min |
| Jul 2, 5:56 PM EDT | Special Weather Statement | PHI | 49 min |
| Jul 3, 11:57 AM EDT | Mesoscale Discussion | SPC | 63 min |
| Jul 3, 1:22 PM EDT | Special Weather Statement | PHI | 38 min |
| Jul 3, 1:30 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 3, 1:57 PM EDT | Tornado Warning | PHI | 24 min |
| Jul 3, 2:12 PM EDT | Severe Thunderstorm Watch | SPC | 10 hr |
| Jul 3, 4:55 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 3, 6:47 PM EDT | Severe Thunderstorm Warning | PHI | 58 min |
| Jul 3, 7:02 PM EDT | Areal Flood Advisory | PHI | 4 hr |
| Jul 3, 7:25 PM EDT | Severe Thunderstorm Warning | PHI | 65 min |
| Jul 3, 7:59 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 7, 10:45 PM EDT | Special Weather Statement | PHI | 60 min |
| Jul 8, 4:42 PM EDT | Mesoscale Discussion | SPC | 63 min |
| Jul 8, 5:05 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jul 8, 7:44 PM EDT | Mesoscale Discussion | SPC | 61 min |
| Jul 8, 8:25 PM EDT | Severe Thunderstorm Warning | PHI | 59 min |
| Jul 9, 4:12 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 9, 4:43 PM EDT | Special Weather Statement | PHI | 62 min |
| Jul 9, 5:07 PM EDT | Severe Thunderstorm Warning | PHI | 53 min |
| Jul 9, 5:28 PM EDT | Special Weather Statement | PHI | 92 min |
| Jul 9, 5:42 PM EDT | Severe Thunderstorm Warning | PHI | 48 min |
| Jul 9, 7:59 PM EDT | Mesoscale Discussion | SPC | 91 min |
| Jul 13, 3:10 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 13, 5:49 PM EDT | Mesoscale Discussion | SPC | 86 min |
| Jul 13, 7:06 PM EDT | Mesoscale Discussion | SPC | 84 min |
| Jul 13, 7:49 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jul 13, 8:33 PM EDT | Severe Thunderstorm Warning | PHI | 57 min |
| Jul 13, 8:46 PM EDT | Mesoscale Discussion | SPC | 89 min |
| Jul 13, 9:16 PM EDT | Special Weather Statement | PHI | 89 min |
| Jul 13, 9:33 PM EDT | Severe Thunderstorm Warning | PHI | 57 min |
| Jul 13, 9:44 PM EDT | Severe Thunderstorm Warning | PHI | 46 min |
| Jul 13, 10:41 PM EDT | Areal Flood Advisory | PHI | 2 hr |
| Jul 14, 3:54 AM EDT | Flash Flood Watch | PHI | 45 hr |
| Jul 14, 1:06 PM EDT | Mesoscale Discussion | SPC | 84 min |
| Jul 14, 1:24 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 14, 4:39 PM EDT | Mesoscale Discussion | SPC | 96 min |
| Jul 14, 4:50 PM EDT | Areal Flood Advisory | PHI | 4 hr |
| Jul 14, 5:16 PM EDT | Special Weather Statement | PHI | 59 min |
| Jul 14, 5:31 PM EDT | Flash Flood Warning | PHI | 3 hr |
| Jul 15, 1:43 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 15, 4:41 PM EDT | Mesoscale Discussion | SPC | 94 min |
| Jul 15, 8:58 PM EDT | Areal Flood Advisory | PHI | 4 hr |
| Jul 23, 5:17 PM EDT | Severe Thunderstorm Warning | PHI | 58 min |
| Jul 23, 6:14 PM EDT | Severe Thunderstorm Warning | PHI | 61 min |
| Jul 23, 6:16 PM EDT | Mesoscale Discussion | SPC | 89 min |
| Jul 23, 7:25 PM EDT | Special Weather Statement | PHI | 65 min |
| Jul 23, 7:49 PM EDT | Severe Thunderstorm Warning | PHI | 38 min |
| Jul 27, 6:09 PM EDT | Mesoscale Discussion | SPC | 66 min |
| Jul 27, 6:52 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 27, 9:39 PM EDT | Mesoscale Discussion | SPC | 66 min |
| Jul 27, 10:26 PM EDT | Areal Flood Advisory | PHI | 3 hr |
| Aug 1, 4:34 PM EDT | Special Weather Statement | PHI | 56 min |
| Aug 21, 10:39 PM EDT | Areal Flood Advisory | PHI | 4 hr |
| Aug 21, 11:59 PM EDT | Flash Flood Warning | PHI | 4 hr |
| Aug 27, 3:41 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 31, 1:30 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Sep 2, 6:29 PM EDT | Mesoscale Discussion | SPC | 91 min |
| Sep 6, 12:31 PM EDT | Mesoscale Discussion | SPC | 89 min |
| Sep 6, 1:37 PM EDT | Special Weather Statement | PHI | 53 min |
| Sep 6, 2:07 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Sep 6, 4:20 PM EDT | Mesoscale Discussion | SPC | 85 min |
| Sep 6, 6:58 PM EDT | Mesoscale Discussion | SPC | 92 min |
| Sep 6, 7:36 PM EDT | Severe Thunderstorm Warning | PHI | 54 min |
| Sep 6, 8:27 PM EDT | Severe Thunderstorm Warning | PHI | 63 min |
| Sep 6, 9:04 PM EDT | Severe Thunderstorm Warning | PHI | 42 min |
| Oct 16, 3:37 AM EDT | Areal Flood Advisory | PHI | 4 hr |
| Oct 19, 3:40 AM EDT | Freeze Warning | PHI | 28 hr |
| Nov 24, 3:15 AM EST | Winter Storm Watch | PHI | 36 hr |
| Nov 25, 9:56 AM EST | Winter Storm Warning | PHI | 36 hr |
| Nov 26, 11:50 AM EST | Mesoscale Discussion | SPC | 4 hr |
| Dec 2, 3:36 AM EST | Winter Weather Advisory | PHI | 21 hr |
| Dec 8, 3:50 PM EST | Winter Weather Advisory | PHI | 18 hr |
| Dec 8, 4:08 PM EST | Flood Watch | PHI | 23 hr |
| Dec 9, 6:10 AM EST | Areal Flood Advisory | PHI | 10 hr |
| Dec 11, 2:46 PM EST | Special Weather Statement | PHI | 59 min |
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 | 20 |
| Tornado Warning | 1 |
| Severe Thunderstorm Watch | 11 |
| Mesoscale Discussion | 40 |
| Special Weather Statement | 24 |
| Flooding | |
| Areal Flood Warning | 4 |
| Flash Flood Warning | 3 |
| Flash Flood Watch | 4 |
| Flood Watch | 4 |
| Areal Flood Advisory | 18 |
| Winter | |
| Winter Storm Warning | 6 |
| Winter Storm Watch | 5 |
| Freezing Rain Advisory | 5 |
| Winter Weather Advisory | 9 |
| Cold | |
| Freeze Warning | 2 |
| Wind Chill Advisory | 3 |
| Wind and dust | |
| Wind Advisory | 1 |
| Fire | |
| Red Flag Warning | 2 |
| Fire Weather Watch | 2 |
| Fog and smoke | |
| Dense Fog Advisory | 3 |
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.