Significant Flood Threat for DC, Baltimore, Philly, and NYC?

If the latest run of the European forecast model continues its current trend, the big cities of the northeast megalopolis from Washington to NYC may be in for some record rainfall next week.

The following high resolution maps (courtesy Pivotal Weather) are from the latest run of the European forecast model and show the potential rainfall accumulation from Monday 18 May through Friday 22 May.

Northern Virginia – Washington – Baltimore:

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Decent Weekend followed by Big Changes Next Week

Short Term Forecast:

Scattered thunderstorms may break out this afternoon across the DC Area mainly between 4pm and 6pm aided by the heat and humidity as well as a trough axis moving east from the Blue Ridge mountains.

This Weekend:

The upcoming weekend looks relatively quiet with a mix of clouds and sunshine region wide and a few scattered showers or storms possible mainly across our southwestern zones (on Saturday afternoon). The most noticeable event this weekend will be the significant difference in temperatures from northeastern Maryland to northern Virginia as a backdoor cold front slides southwest through the region on Saturday afternoon.

Big Changes Next Week:

A pattern change is in store for the upcoming work week as we shift away from warm weather to cooler temperatures and the threat of rain.

The image above (courtesy Pivotal Weather) shows several areas of low pressure impacting the weather across the Mid-Atlantic beginning Monday and potentially lasting through Thursday.

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