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E PA/NJ/DE/NE MD/Elko, NV : (Not During Storms) OBS Discussion/Banter Thread

famartin

By famartin,
in Philadelphia Region

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Eskimo Joe

Eskimo Joe

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I'm never surprised by a reading they post. Often they add 2 degrees to the hourly obs, but besides that, they just have to be a degree or two too warm. Maybe even more in heat waves. If Philly gets to 100, PTW will probably be 103. This heat will be brutal even if it underperforms. Just think only one more month maybe of this kind of constant heat. September can be hot, but rarely constantly.

September ''heat waves'' are almost enjoyable. From what I remember in past years the humidity is not as high so you can have a mild evening after touching the low 90s.

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Parsley

Parsley

Posted
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definitely think ptw is atleast 2 degrees to warmer. They bottomed out at 78 this morning, warmer than phl. 5 degrees warmer than rdg. The wunderground weather stations around ptw are all 3 degrees cooler.

I think +2 is a fair number, although PTW was way warmer than PHL yesterday, plus PHL being south of the city actually can cool more than center city, no? I wonder how low it was in center city last night. Too bad they don't keep obs. for "Philly" within a mile or two of I-676.

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easternsnowman

easternsnowman

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I think +2 is a fair number, although PTW was way warmer than PHL yesterday, plus PHL being south of the city actually can cool more than center city, no? I wonder how low it was in center city last night. Too bad they don't keep obs. for "Philly" within a mile or two of I-676.

I think center city is about the same as the airport, if you go into roxborough area temps are a bit cooler than both,

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Parsley

Parsley

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I think center city is about the same as the airport, if you go into roxborough area temps are a bit cooler than both,

The only place I ever look at to get a feel of the city temps. is

PHBP1: PHILADELPHIA PIER 12 : (96 / 80 yesterday)

Its from the daily state max/min report. I have no idea how reliable this obs. site is. But its always higher than PHL.

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famartin

famartin

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cracked 95 at 12:46pm.

Just curious, but isn't the rule of thumb for 100 at PHL supposed to be 90 at noon & 95 at 2pm?

Well, we can look back in time.. here's all the 100-degree days since 1981:

7/7/2010: High 103, noon reading 99, 2PM reading 100

7/6/2010: High 102, noon reading 98, 2PM reading 100

8/9/2001: High 101, noon reading 95, 2PM reading 100

8/8/2001: High 100, noon reading 93, 2PM reading 96

7/5/1999: High 100, noon reading 95, 2PM reading 98

7/15/1995: High 103, noon reading 98, 2PM reading 101

6/19/1994: High 100, noon reading 96, 2PM reading 98

6/15/1994: High 100, noon reading 95, 2PM reading 98

7/10/1993: High 101, noon reading 97, 2PM reading 99

7/9/1993: High 100, noon reading 95, 2PM reading 99

7/8/1993: High 100, noon reading 95, 2PM reading 99

6/16/1991: High 100, noon reading 95, 2PM reading 97

7/17/1988: High 102, noon reading 95, 2PM reading 101

7/16/1988: High 102, noon reading 95, 2PM reading 99

7/11/1988: High 100, noon reading 93, 2PM reading 97

7/10/1988: High 100, noon reading 90, 2PM reading 95

6/22/1988: High 100, noon reading 96, 2PM reading 99

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famartin

famartin

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cracked 95 at 12:46pm.

Just curious, but isn't the rule of thumb for 100 at PHL supposed to be 90 at noon & 95 at 2pm?

Adjusting those days which were above 100 down to 100, it would seem the rule of thumb is as follows:

If PHL hits 94 by noon, there's a reasonable chance of 100. If PHL hits 98 at 2PM, there's a reasonable chance of 100.

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Thunder Road

Thunder Road

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Adjusting those days which were above 100 down to 100, it would seem the rule of thumb is as follows:

If PHL hits 94 by noon, there's a reasonable chance of 100. If PHL hits 98 at 2PM, there's a reasonable chance of 100.

Oh okay, thanks. I know there was a "rule of thumb" we were discussing last summer, but the stats you dug up seems valid to make 94/98 the "new rule of thumb"

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