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Some more "big storm" stats (PHL/ABE/ACY)


famartin

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These are based on the individual stats threads I made so all caveats I had listed in those apply here.

 

Total 6"+ storms from 1944 to present:

ABE 103, PHL 62, ACY 52

 

Interesting that PHL's total and ACY's total is so close while ABE is way way above, just goes to show that PHL is really more in the "South and East" category than the "North and West" category most of the time.

 

Average of storms of 6" or greater from 1944 to present:

ABE 9.7", PHL 10.4", ACY 9.6"

 

As someone else mentioned, there is definitely a tendency towards having a whopper when PHL exceeds that crucial 6" mark.

 

Total number of storms by site and month from 1944 to present:

ABE:  1 October, 3 November, 17 December, 31 January, 30 February, 20 March, 1 April

PHL:  0 October, 1 November, 13 December, 15 January, 21 February, 12 March, 0 April

ACY:  0 October, 2 November, 9 December, 15 January, 18 February, 7 March, 1 April

 

Interesting that there have been more 6" events in Allentown in January than February.  Perhaps the tendency to shift the storm track to the favorable "benchmark" in February while in January its a bit closer.  Just guessing.

 

Here's the master list of all storms which hit 6" or greater at one of the three sites, 1944 to present:

Date		ABE	PHL	ACY																																																			Winter 43-44																											3/11-12/1944	7.2	0	0																								3/19-20/1944	6	3	1.1																																																			Winter 44-45																											1/15-16/1945	10.4	7.7	0.1																																																			Winter 45-46																											12/19-20/1945	9.2	9.2	6.8																								2/19-20/1946	8.7	2.8	0																																																			Winter 46-47																											2/20-21/1947	12.3	10.6	5.8																																																			Winter 47-48																											12/26/1947	5.7	7.4	6.5																								1/12-13/1948	6.7	1.8	T																								1/24-25/1948	8.4	3.4	4.5																								2/4-5/1948	5.6	8.1	3.1																								2/22/1948	8.6	3.2	4																																																			Winter 48-49																											12/19/1948	8.4	7.4	0.6																																																			Winter 49-50																																																						Winter 50-51																																																						Winter 51-52																											3/1/1952	3	6	7.7																																																			Winter 52-53																											3/8/1953	3.1	7.1	3.5																																																			Winter 53-54																											11/6-7/1953	6.3	8.8	T																								1/11-12/1954	7.8	10	2.9																								1/22-23/1954	T	0.3	7.9																																																			Winter 54-55																																																						Winter 55-56																											3/18-19/1956	10	8.7	9.8																																																			Winter 56-57																											1/31-2/1/1957	7.8	0.8	0.3																																																			Winter 57-58																											12/3-4/1957	5.9	7	4																								1/7/1958	1.1	2.6	11.3																								2/1/1958	1.8	3.6	9																								2/15-16/1958	15.8	13	3.6																								3/13-14/1958	10.2	2	T																								3/19-20/1958	19.9	11	2.8																																																			Winter 58-59																											3/11-12/1959	8.1	1.4	T																																																			Winter 59-60																											3/3-4/1960	14.2	8.2	9.6																																																			Winter 60-61																											12/11-12/1960	10.3	14.6	7.5																								1/19-20/1961	16	13.2	10.7																								2/3-4/1961	17.3	10.3	4.9																																																			Winter 61-62																											12/23-24/1961	8.1	3.2	0.4																								1/1-2/1962	T	T	6.4																								3/6/1962	3.3	6.8	3.6																																																			Winter 62-63																											1/26-27/1963	7.4	4.4	1.8																																																			Winter 63-64																											12/23/1963	5.9	5.2	6																								1/12-13/1964	13.4	7.2	14.7																								2/18-19/1964	13.2	2.2	0.5																																																			Winter 64-65																											1/10/1965	6.3	6.6	2																																																			Winter 65-66																											1/22-23/1966	9.6	3.5	0.7																								1/26-27/1966	2.8	4.2	7.5																								1/29-30/1966	11.5	8.3	6.8																								2/24-25/1966	9.8	5.6	3.6																																																			Winter 66-67																											12/13-14/1966	7.6	1.9	T																								12/20-21/1966	6.5	3.9	1.9																								12/24-25/1966	13.3	12.7	6.6																								2/6-7/1967	13	9.9	8.3																								2/9-10/1967	0.9	3	13.1																								2/17-18/1967	2.5	2.6	10.7																								3/5-6/1967	6.1	0.4	T																																																			Winter 67-68																											11/30/1967	5.4	4.9	7.8																																																			Winter 68-69																											11/12/1968	6.4	0.4	T																								3/1-2/1969	7.1	4.4	11.6																								3/7/1969	1.3	4	6																																																			Winter 69-70																											12/25-26/1969	13	5.1	0.3																								3/29/1970	10.2	1.4	T																																																			Winter 70-71																											1/1/1971	7.8	5.5	4.2																								3/3-4/1971	6.5	4.3	T																																																			Winter 71-72																											11/24-25/1971	6.1	T	0																								2/18-19/1972	8.9	3.7	2.4																																																			Winter 72-73																																																						Winter 73-74																											12/16-17/1973	6.2	3.8	T																								1/9-10/1974	6	3.7	0.4																								2/8/1974	2.4	6	8.3																																																			Winter 74-75																																																						Winter 75-76																											3/9/1976	6.6	6.9	3.3																																																			Winter 76-77																																																						Winter 77-78																											1/19-20/1978	11.4	13.2	1.2																								2/6-7/1978	13.4	13.6	12.6																								3/3/1978	4.5	6.5	4																																																			Winter 78-79																											1/6/1979	4.9	3	8.3																								2/7-8/1979	6.3	7.6	4.6																								2/18-19/1979	12.1	14.3	17.1																																																			Winter 79-80																											3/13-14/1980	6.2	3.6	T																																																			Winter 80-81																											3/5/1981	6.1	8.8	T																																																			Winter 81-82																											12/14-15/1981	6.2	2.3	0.3																								1/13-14/1982	5	9.1	4.9																								4/6/1982	11.4	3.5	2																																																			Winter 82-83																											12/12/1982	0.4	6.8	6.7																								1/15-16/1983	8.6	0.2	T																								2/11-12/1983	25.2	21.3	11.8																																																			Winter 83-84																											1/18-19/1984	3.6	6	2.6																								3/8-9/1984	8.1	7.3	3.3																																																			Winter 84-85																											2/1-2/1985	6.6	2.4	2.2																																																			Winter 85-86																																																						Winter 86-87																											1/1-2/1987	6.1	0.7	T																								1/22/1987	11.1	8.8	3.6																								1/25-26/1987	0.5	4.1	16.3																								2/22-23/1987	6.6	6.8	6.6																																																			Winter 87-88																											1/8-9/1988	6.9	3.9	6.7																								1/25-26/1988	11.8	3.9	T																								2/11-12/1988	8.6	1.5	0.2																																																			Winter 88-89																											2/24/1989	0	T	12.3																																																			Winter 89-90																											11/22-23/1989	3	4.6	6																																																			Winter 90-91																											12/27-28/1990	8.8	6.4	3.1																																																			Winter 91-92																											3/18-19/1992	7.1	0.4	T																																																			Winter 92-93																											3/13-14/1993	17.6	12	3.7																																																			Winter 93-94																											1/12/1994	7.4	T	0																								1/17-18/1994	12	1.3	0.3																								1/25-26/1994	7.1	1.7	T																								2/8-9/1994	9.2	5.6	2.5																								2/11/1994	9.8	4.7	1.9																								3/2-3/1994	8.7	3.8	0.2																																																			Winter 94-95																											2/3-4/1995	8.4	8.8	0.4																																																			Winter 95-96																											12/19-20/1995	10.4	2.3	0.8*																								1/7-8/1996	25.6	30.7	14.6*																								1/12-13/1996	6	2.7	T*																								2/2-3/1996	6.2	5.1	10.8*																								2/16-17/1996	1.2	7.5	6.5*																								3/2/1996	1	3.7	6*																								4/9-10/1996	0.2	2.4	8.4*																																																			Winter 96-97																																																						Winter 97-98																																																						Winter 98-99																											3/14-15/1999	7*	4.8	T*																																																			Winter 99-00																											1/25/2000	10*	8.5	9.9*																								1/30-31/2000	6	2.2	T*																																																			Winter 00-01																											12/30/2000	5.7	9	7																								1/20-21/2001	7.3	2.7	0.4																								2/5/2001	13	3	T																								2/22/2001	7	7	8																																																			Winter 01-02																																																						Winter 02-03																											12/5/2002	8	7	5																								12/24-25/2002	7.2	1.4	0.5																								2/6-7/2003	7.5	7.1	7.2																								2/16-17/2003	20	18.7	20																																																			Winter 03-04																											12/5-6/2003	9	4.8	5																								1/26-27/2004	6.6	4	4.7																																																			Winter 04-05																											1/22-23/2005	10.6	12.6	3.4																								2/28-3/1/2005	10.1	5.8	1.3																																																			Winter 05-06																											12/9/2005	9.1	2.2	0																								2/11-12/2006	15.2	12	4.2																																																			Winter 06-07																											2/13-14/2007	7.6	4.3	0.8																								3/16-17/2007	8.5	3	T																																																			Winter 07-08																																																						Winter 08-09																											2/3-4/2009	3.1	8.4	3.2																								3/1-2/2009	4.1	9	6.8																																																			Winter 09-10																											12/19-20/2009	5.6	23.2	12.1																								1/30-31/2010	0	2.1	7.7																								2/5-6/2010	7.7	28.5	18.2																								2/9-10/2010	17.8	15.8	7.1																								2/25-26/2010	12.4	5.6	7.7																																																			Winter 10-11																											12/26-27/2010	2.8	12.4	20																								1/7-8/2011	2.3	3.2	8																								1/26-27/2011	11.6	15.1	3.4																								2/21-22/2011	2.3	6	3.5																																																			Winter 11-12																											10/29/2011	6.8	0.3	T																																																			Winter 12-13																																																						Winter 13-14																											12/8/2013	1.3	8.6	2.1																								12/14-15/2013	6.8	0.3	0																								1/2-3/2014	7.2	9	6.5																								Average		7.9	6.2	4.6																								* = Unofficial																											
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These are based on the individual stats threads I made so all caveats I had listed in those apply here.

 

Total 6"+ storms from 1944 to present:

ABE 103, PHL 62, ACY 52

 

Interesting that PHL's total and ACY's total is so close while ABE is way way above, just goes to show that PHL is really more in the "South and East" category than the "North and West" category most of the time.

 

Average of storms of 6" or greater from 1944 to present:

ABE 9.7", PHL 10.4", ACY 9.6"

 

As someone else mentioned, there is definitely a tendency towards having a whopper when PHL exceeds that crucial 6" mark.

 

Total number of storms by site and month from 1944 to present:

ABE:  1 October, 3 November, 17 December, 31 January, 30 February, 20 March, 1 April

PHL:  0 October, 1 November, 13 December, 15 January, 21 February, 12 March, 0 April

ACY:  0 October, 2 November, 9 December, 15 January, 18 February, 7 March, 1 April

 

Interesting that there have been more 6" events in Allentown in January than February.  Perhaps the tendency to shift the storm track to the favorable "benchmark" in February while in January its a bit closer.  Just guessing.

 

Here's the master list of all storms which hit 6" or greater at one of the three sites, 1944 to present:

Date		ABE	PHL	ACY																																																			Winter 43-44																											3/11-12/1944	7.2	0	0																								3/19-20/1944	6	3	1.1																																																			Winter 44-45																											1/15-16/1945	10.4	7.7	0.1																																																			Winter 45-46																											12/19-20/1945	9.2	9.2	6.8																								2/19-20/1946	8.7	2.8	0																																																			Winter 46-47																											2/20-21/1947	12.3	10.6	5.8																																																			Winter 47-48																											12/26/1947	5.7	7.4	6.5																								1/12-13/1948	6.7	1.8	T																								1/24-25/1948	8.4	3.4	4.5																								2/4-5/1948	5.6	8.1	3.1																								2/22/1948	8.6	3.2	4																																																			Winter 48-49																											12/19/1948	8.4	7.4	0.6																																																			Winter 49-50																																																						Winter 50-51																																																						Winter 51-52																											3/1/1952	3	6	7.7																																																			Winter 52-53																											3/8/1953	3.1	7.1	3.5																																																			Winter 53-54																											11/6-7/1953	6.3	8.8	T																								1/11-12/1954	7.8	10	2.9																								1/22-23/1954	T	0.3	7.9																																																			Winter 54-55																																																						Winter 55-56																											3/18-19/1956	10	8.7	9.8																																																			Winter 56-57																											1/31-2/1/1957	7.8	0.8	0.3																																																			Winter 57-58																											12/3-4/1957	5.9	7	4																								1/7/1958	1.1	2.6	11.3																								2/1/1958	1.8	3.6	9																								2/15-16/1958	15.8	13	3.6																								3/13-14/1958	10.2	2	T																								3/19-20/1958	19.9	11	2.8																																																			Winter 58-59																											3/11-12/1959	8.1	1.4	T																																																			Winter 59-60																											3/3-4/1960	14.2	8.2	9.6																																																			Winter 60-61																											12/11-12/1960	10.3	14.6	7.5																								1/19-20/1961	16	13.2	10.7																								2/3-4/1961	17.3	10.3	4.9																																																			Winter 61-62																											12/23-24/1961	8.1	3.2	0.4																								1/1-2/1962	T	T	6.4																								3/6/1962	3.3	6.8	3.6																																																			Winter 62-63																											1/26-27/1963	7.4	4.4	1.8																																																			Winter 63-64																											12/23/1963	5.9	5.2	6																								1/12-13/1964	13.4	7.2	14.7																								2/18-19/1964	13.2	2.2	0.5																																																			Winter 64-65																											1/10/1965	6.3	6.6	2																																																			Winter 65-66																											1/22-23/1966	9.6	3.5	0.7																								1/26-27/1966	2.8	4.2	7.5																								1/29-30/1966	11.5	8.3	6.8																								2/24-25/1966	9.8	5.6	3.6																																																			Winter 66-67																											12/13-14/1966	7.6	1.9	T																								12/20-21/1966	6.5	3.9	1.9																								12/24-25/1966	13.3	12.7	6.6																								2/6-7/1967	13	9.9	8.3																								2/9-10/1967	0.9	3	13.1																								2/17-18/1967	2.5	2.6	10.7																								3/5-6/1967	6.1	0.4	T																																																			Winter 67-68																											11/30/1967	5.4	4.9	7.8																																																			Winter 68-69																											11/12/1968	6.4	0.4	T																								3/1-2/1969	7.1	4.4	11.6																								3/7/1969	1.3	4	6																																																			Winter 69-70																											12/25-26/1969	13	5.1	0.3																								3/29/1970	10.2	1.4	T																																																			Winter 70-71																											1/1/1971	7.8	5.5	4.2																								3/3-4/1971	6.5	4.3	T																																																			Winter 71-72																											11/24-25/1971	6.1	T	0																								2/18-19/1972	8.9	3.7	2.4																																																			Winter 72-73																																																						Winter 73-74																											12/16-17/1973	6.2	3.8	T																								1/9-10/1974	6	3.7	0.4																								2/8/1974	2.4	6	8.3																																																			Winter 74-75																																																						Winter 75-76																											3/9/1976	6.6	6.9	3.3																																																			Winter 76-77																																																						Winter 77-78																											1/19-20/1978	11.4	13.2	1.2																								2/6-7/1978	13.4	13.6	12.6																								3/3/1978	4.5	6.5	4																																																			Winter 78-79																											1/6/1979	4.9	3	8.3																								2/7-8/1979	6.3	7.6	4.6																								2/18-19/1979	12.1	14.3	17.1																																																			Winter 79-80																											3/13-14/1980	6.2	3.6	T																																																			Winter 80-81																											3/5/1981	6.1	8.8	T																																																			Winter 81-82																											12/14-15/1981	6.2	2.3	0.3																								1/13-14/1982	5	9.1	4.9																								4/6/1982	11.4	3.5	2																																																			Winter 82-83																											12/12/1982	0.4	6.8	6.7																								1/15-16/1983	8.6	0.2	T																								2/11-12/1983	25.2	21.3	11.8																																																			Winter 83-84																											1/18-19/1984	3.6	6	2.6																								3/8-9/1984	8.1	7.3	3.3																																																			Winter 84-85																											2/1-2/1985	6.6	2.4	2.2																																																			Winter 85-86																																																						Winter 86-87																											1/1-2/1987	6.1	0.7	T																								1/22/1987	11.1	8.8	3.6																								1/25-26/1987	0.5	4.1	16.3																								2/22-23/1987	6.6	6.8	6.6																																																			Winter 87-88																											1/8-9/1988	6.9	3.9	6.7																								1/25-26/1988	11.8	3.9	T																								2/11-12/1988	8.6	1.5	0.2																																																			Winter 88-89																											2/24/1989	0	T	12.3																																																			Winter 89-90																											11/22-23/1989	3	4.6	6																																																			Winter 90-91																											12/27-28/1990	8.8	6.4	3.1																																																			Winter 91-92																											3/18-19/1992	7.1	0.4	T																																																			Winter 92-93																											3/13-14/1993	17.6	12	3.7																																																			Winter 93-94																											1/12/1994	7.4	T	0																								1/17-18/1994	12	1.3	0.3																								1/25-26/1994	7.1	1.7	T																								2/8-9/1994	9.2	5.6	2.5																								2/11/1994	9.8	4.7	1.9																								3/2-3/1994	8.7	3.8	0.2																																																			Winter 94-95																											2/3-4/1995	8.4	8.8	0.4																																																			Winter 95-96																											12/19-20/1995	10.4	2.3	0.8*																								1/7-8/1996	25.6	30.7	14.6*																								1/12-13/1996	6	2.7	T*																								2/2-3/1996	6.2	5.1	10.8*																								2/16-17/1996	1.2	7.5	6.5*																								3/2/1996	1	3.7	6*																								4/9-10/1996	0.2	2.4	8.4*																																																			Winter 96-97																																																						Winter 97-98																																																						Winter 98-99																											3/14-15/1999	7*	4.8	T*																																																			Winter 99-00																											1/25/2000	10*	8.5	9.9*																								1/30-31/2000	6	2.2	T*																																																			Winter 00-01																											12/30/2000	5.7	9	7																								1/20-21/2001	7.3	2.7	0.4																								2/5/2001	13	3	T																								2/22/2001	7	7	8																																																			Winter 01-02																																																						Winter 02-03																											12/5/2002	8	7	5																								12/24-25/2002	7.2	1.4	0.5																								2/6-7/2003	7.5	7.1	7.2																								2/16-17/2003	20	18.7	20																																																			Winter 03-04																											12/5-6/2003	9	4.8	5																								1/26-27/2004	6.6	4	4.7																																																			Winter 04-05																											1/22-23/2005	10.6	12.6	3.4																								2/28-3/1/2005	10.1	5.8	1.3																																																			Winter 05-06																											12/9/2005	9.1	2.2	0																								2/11-12/2006	15.2	12	4.2																																																			Winter 06-07																											2/13-14/2007	7.6	4.3	0.8																								3/16-17/2007	8.5	3	T																																																			Winter 07-08																																																						Winter 08-09																											2/3-4/2009	3.1	8.4	3.2																								3/1-2/2009	4.1	9	6.8																																																			Winter 09-10																											12/19-20/2009	5.6	23.2	12.1																								1/30-31/2010	0	2.1	7.7																								2/5-6/2010	7.7	28.5	18.2																								2/9-10/2010	17.8	15.8	7.1																								2/25-26/2010	12.4	5.6	7.7																																																			Winter 10-11																											12/26-27/2010	2.8	12.4	20																								1/7-8/2011	2.3	3.2	8																								1/26-27/2011	11.6	15.1	3.4																								2/21-22/2011	2.3	6	3.5																																																			Winter 11-12																											10/29/2011	6.8	0.3	T																																																			Winter 12-13																																																						Winter 13-14																											12/8/2013	1.3	8.6	2.1																								12/14-15/2013	6.8	0.3	0																								1/2-3/2014	7.2	9	6.5																								Average		7.9	6.2	4.6																								* = Unofficial																											

I would like to see the number of days snow cover as well. Nothing could be finer than having snow on the ground for 30+ days . What would also be neat is how many consecutive days that snow cover exceeded 12 inches on the ground. That means the piles in the parking lots did not melt for months. That is a winter---- not this hit and gone stuff in two days storms. That is why people freaked out on the last storm event because the ground was so cold that salt did not work and were not used to it

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I would like to see the number of days snow cover as well. Nothing could be finer than having snow on the ground for 30+ days . What would also be neat is how many consecutive days that snow cover exceeded 12 inches on the ground. That means the piles in the parking lots did not melt for months. That is a winter---- not this hit and gone stuff in two days storms. That is why people freaked out on the last storm event because the ground was so cold that salt did not work and were not used to it

 

Data on that is harder to collect, there are more gaps especially in the late 90s.

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I would like to see the number of days snow cover as well. Nothing could be finer than having snow on the ground for 30+ days . What would also be neat is how many consecutive days that snow cover exceeded 12 inches on the ground. That means the piles in the parking lots did not melt for months. That is a winter---- not this hit and gone stuff in two days storms. That is why people freaked out on the last storm event because the ground was so cold that salt did not work and were not used to it

weatherwise magazine in late 1973 had an artical about Philadelphia snowcover or lack of it in 1972-73...it had 1960-61 as the winter with the most snow cover...That gave me the idea for my NYC snow depth table...you can estimate looking at old records with no snow depth observations...time of year, temperature, daytime cloud cover,fog,rain go into the estimate...

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Good stuff and really illustrates that the last 20 years so have been pretty kind to us.  I wonder what the statistical probability would be, for instance, of Philly having 5 12 inch+ storms over two consecutive winters (09-10, 10-11)... or 4 15 inch+ storms over the same period... or 2 23+ inch storms in the same winter (09-10).

 

Philadelphia set its all-time single storm record in 1983 by shattering a record from 1909.  The 1983 record of 21.3 inches has been obliterated three times since and challenged one or two other times.  Good times...  :santa:

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