Event Summaries

The following summaries cover selected significant meteorological events occurring in the National Weather Service Philadelphia/Mount Holly county warning area (CWA). Event reviews are completed based on event significance and resource availability. The information provided on these pages should be considered preliminary.

2021

• 1 September 2021: Remnants of Ida


• 19 August 2021: Remnants of Fred


• 29 July 2021 Tornado Outbreak


• 21 July 2021 Severe Weather


• 17 July 2021 Severe Weather and Flooding


• 12 July 2021: Flash Flood Emergency in Bucks County


• 8-9 July 2021: Tropical Storm Elsa


• 1 July 2021 Severe Weather Including Two Tornadoes in Delaware


• 26 May 2021 Multi-Round Severe Weather


• 21 April 2021 Severe Weather


• 28 March 2021 Squall Line

2020

• 25 December 2020 Flooding


• 16-17 December 2020 Winter Storm


• 30 November 2020 Squall Line with Wind Damage


• 15 November 2020 Severe Weather


• 7 August 2020 Severe Weather and Flash Flooding


• 4 August 2020 Tropical Storm Isaias


• 10 July 2020 Tropical Storm Fay


• 6 July 2020 Severe Weather and Flash Flooding


• 3 June 2020 Derecho


• 7 February 2020 Squall Line

2019

• 31 October 2019 Severe Weather and Flash Flooding


• 29 June 2019 Widespread Severe Weather


• 19-20 June 2019 Significant Flash Flooding in Southeast Pennsylvania and Southern New Jersey


• 13 June 2019 Tornadoes/Wind Damage from Cecil to Camden County


• 2 June 2019 Severe Wind/Hail Event


• 30 May 2019 Delmarva Severe Storms and E PA/NJ Flooding


• 29 May 2019 Severe Weather Outbreak and Flash Flooding


• 28 May 2019 Severe Weather Outbreak


• 19 May 2019 E PA/N NJ Severe Storms


• 26 April 2019 Severe Weather


• 14-15 April 2019 Severe Weather


• 24 January 2019 Flooding

2018

• 5 December 2018 - Southern NJ Snow Event


• 24-25 November 2018 - Thanksgiving Weekend Flood Event


• 15-16 November 2018 - Winter Storm


• 2-3 November 2018 - Montgomery/Chester County Downbursts and Flooding in E PA and N NJ


• 11-12 October 2018 - Remnants of Michael Flooding NJ/Delmarva


• 2 October 2018 - Severe Thunderstorms and Flooding in E PA/N NJ


• 3-4 August 2018 - Flooding in Lehigh Valley and N NJ


• 15 May 2018 - Widespread Thunderstorm Wind Damage in E PA/N NJ


• 2 April 2018 Snow Reports


• 20-22 March 2018 Winter Storm Snow Reports


• 7 March 2018 Winter Storm Snow Reports


• 2 March 2018 Winter Storm Snow Reports


• 16-18 January Snow Reports

2017

• 7-8 January 2017 Winter Storm Snow Reports


• 22-24 January 2017 - Storm with High Winds and Mixed Precipitation


• 8-9 February 2017 Snow and Wind Reports


• 13-14 March 2017 Winter Storm Reports


• 9-10 December 2017 Snow Reports

2016

• 22-24 January 2016 Major Winter Storm Summary


• 23-24 February 2016 - Storm with Highs Winds and Mixed Precipitation


• 19-20 November 2016 Snow and Wind Reports


• 29 November - 1 December 2016 Heavy Rain Reports

2015

• 27 January 2015 Winter Storm Snow Reports


• 2 February 2015 Wind and Mixed Precipitation Reports


• 17 February 2015 Snow Reports


• 21-22 February 2015 Snow and Ice Reports


• 1 March 2015 Snow and Ice Reports


• 5 March 2015 Winter Storm Snow Reports


• 20 March 2015 Snow Reports


• 23 June 2015 Severe Thunderstorms

2014

• 2-3 January 2014 Winter Storm Snow and Wind Reports


• 21-22 January 2014 Winter Storm with Heavy Snow Band in Urban Corridor


• 28-29 January 2014 Snow Reports


• 3 February 2014 Winter Storm Snow Reports


• 4-5 February 2014 Winter Storm with Snow and Ice


• 13-14 February 2014 Major Winter Storm Summary


• 16-17 March 2014 Winter Storm Snow Reports


• 22 May 2014 Brief Tornado in Kent County, DE


• 26 November 2014 Winter Storm Snow Reports

2013

• 8-9 February 2013 Winter Storm Summary


• 8-9 December 2013 Winter Storm Summary


• 10 December 2013 Winter Storm Summary


• 14-15 December 2013 Winter Storm Snow and Ice Reports

2012

• 21 January 2012 Snow and Ice


• 29-30 June 2012: Historic Derecho


• 3-4 September 2012: Heavy Rain and a Couple of Tornadoes


• 29 October 2012: Hurricane Sandy


• 7-8 November 2012: Early Season Winter Storm Following Sandy

2011

• 11-12 January 2011 Winter Storm


• 21 January 2011 Snow Reports


• 26-27 January 2011: Major Winter Storm


• 21 February 2011 Winter Storm


• 10-13 March 2011: Heavy Rainfall


• July 29 2011: Vernon Twp Microburst


• 28 August 2011: Hurricane Irene


• 29 October 2011: Rare Early Season Winter Storm

2010

• 30 January 2010 Winter Storm


• 5-6 February 2010 Winter Storm: One of Area's Greatest Snow Events on Record


• 9-10 February 2010: Second Major Winter Storm Inside of a Week


• 25-26 February 2010: Major Winter Storm


• 12-15 March 2010: Heavy Rain, High Winds, and Flooding


• 24 June 2010: 75 mph Wind Gust at PHL


• 22 August 2010: Weak Tornado in Delaware County


• 26-27 December 2010: Major Winter Storm

2009

• 3 February 2009 Winter Storm


• 1-2 March 2009 Winter Storm


• 13 June 2009: Strong Microburst in Delaware


• 29 July 2009: A Pair of EF-2 Tornadoes in the Region


• 12-13 November 2009: Remnants of Ida


• Additional Presentation on the Remnants of Ida


• 5 December 2009 Winter Storm


• 8-9 December 2009 Mixed Precipitation


• 19-20 December 2009: Major Winter Storm

2008

• 12-13 February 2008 Winter Storm


• 22-23 February 2008 Winter Storm


• 11-13 May 2008 Late Season Nor'easter: The Mother's Day Storm


• 6 September 2008: Tornado Near Allentown

2007

• 25 January 2007 Snow Squalls


• 7 February 2007 Light Snow


• 13-14 February 2007: Major Winter Storm with Mixed Precipitation


• 25 February 2007 Snow and Ice


• 16 March 2007: Major Winter Storm with Mixed Precipitation


• 15-16 April 2007: Nor'easter with Heavy Rain and Flooding

2006

• 14-15 January 2006: Snow and High Winds


• 11-12 February 2006: Major Winter Storm


• 2 March 2006 Snow and Ice


• 5 April 2006: Snow and High Winds


• 24 April 2006 Hail Event


• 23-29 June 2006: Several Days of Very Heavy Rainfall


• 1-3 September 2006: Remnants of Ernesto


• 1 December 2006 High Wind Event

2005

• 5-6 January 2005: Winter Storm


• 22-23 January 2005: Winter Storm


• 29-30 January 2005: Winter Storm


• 20-21 February 2005: Winter Storm


• 24-25 February 2005: Winter Storm


• 28 February - 1 March 2005: Winter Storm


• 23-24 March 2005 Snow Reports


• Early April 2005: Delaware River Flooding


• 28 May 2005: Severe Storms with 69 mph Wind Gust at PHL


• 5-6 December 2005: Winter Storm


• 9 December 2005: Winter Storm

2004

• 15 January 2004: Winter Storm


• 27-28 January 2004: Winter Storm


• 17-18 February 2004: Winter Storm


• 28 September 2004: Remnants of Jeanne

2003

• 14 December 2003: Winter Storm

2002

• 6-7 January 2002: Winter Storm


• 5 December 2002: Winter Storm

2001

• 21 January 2001: Winter Storm


• 5 February 2001: Winter Storm


• 22 February 2001: Winter Storm


• 5 March 2001: Winter Storm


• 27 May 2001: F2 Tornado in Monmouth County


• 7 July 2001: F1 Tornado in Atlantic County

2000

• 30 December 2000: Major Winter Storm