here The map for Aug. 7, 1918 is below." />

Elliot Abrams

Share |

Dazzling to Dampening

August 7, 2012; 6:37 AM ET

Tuesday 8:30 a.m.

Drier air advanced into the northeast quarter of the nation yesterday, but its tenure is temporary and will be quickly terminated. As a high pressure area moves off the East Coast and a low pressure area forms near the lower Great Lakes, more humid air will be drawn northward... and the chance of showers and thunderstorms will increase. This looks like the kind of setup that can unleash 1-2 inches of rain in some areas. However, until we see exactly where the storm forms and how the moisture becomes arranged around it, forecasting rainfall amounts for various places is risky. The video has more.

On this date in 1918, Philadelphia had a high temperature of 106, the highest official reading ever for that city. What did the weather map look like that day? NOAA maintains an archive of weather maps for each day back to 1871. You can view them here The map for Aug. 7, 1918 is below. The map time is 1 a.m., and you may be able to see the 80-degree isotherm for that hour.

In those days, weather records were kept at the Customs House in Center City, Philadelphia. In later years, the observation site was shifted to Philadelphia International Airport. Airport locations are typically somewhat cooler than the middle of our big cities.

The views expressed are those of the author and not necessarily those of AccuWeather, Inc. or AccuWeather.com

Comments

Comments left here should adhere to the AccuWeather.com Community Guidelines. Profanity, personal attacks, and spam will not be tolerated.

More Northeast U.S. Weather Blog

  • Northeast: March to Come in Like a Penguin

    February 27, 2015; 7:38 AM ET

    The wind will not roar like a lion in the Northeast on Sunday March 1. It certainly won't be lamblike. However, with more cold and snow in the forecast, it might be suitable for this group:

  • Partially Snowy; Totally Cold

    February 26, 2015; 8:09 AM ET

    The surface analysis shows to low pressure area off the North Carolina coast, a large cold high pressure area in the northwest corner of the map, and a broad northeasterly flow of cold air between pressure centers. Cold will continue in this whole area through Saturday.

  • Early March to Turn Less Cold but Perhaps More Stormy in Northeast

    February 25, 2015; 9:18 AM ET

    In reaction to this, the flow aloft may become more southwesterly over the Eastern states. This would promote less chill in the Northeast but cause more storminess. The following maps are U.S. model predictions of total snowfall and precipitation from now through next Wednesday.

  • Cold for the Rest of the Month

    February 24, 2015; 7:07 AM ET

    Is there any warmth in future? The following two maps suggest the answer is yes, but it is only temporary. This map shows projected flow aloft for next Tuesday. If you trace the origin of the air, you see a southwesterly flow of air next Monday (March 2).

  • Cold in the Northeast Until March

    February 23, 2015; 7:13 AM ET

    New York City often has its coldest days when the air comes straight south through the Hudson Valley... rather than from the Great Lakes. This map shows how today's wind flow matches the profile for extreme cold.

  • Harsh Cold to Depart, but the Replacement is More Snow

    February 20, 2015; 9:20 AM ET

    There will be a non-uniform snow accumulation pattern because the precipitation will be organized in bands and blobs around which precipitation rates vary quite a bit. This map is designed to give a quick overview about expected snow accumulations:

About This Blog

Elliot Abrams
Elliot Abrams from AccuWeather.com offers this Northeast Weather Blog for the U.S. with regular updates on NE weather from a leading forecaster and meteorologist.