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USNA Weather Forecast

Forecast Discussion:

The Maryland Department of the Environment has issued a Code Orange Air Quality Alert for Friday, 10 August. Pollution concentrations may become unsafe for sensitive groups including the elderly, children, and people suffering from asthma, heart, or lung diseases.

Numerous upper air disturbances will result in unsettled weather through early next week. The first wave of energy will pass Friday night/Saturday. Scattered rain showered with a few embedded rumbles of thunder are possible during the day on Saturday with more widespread showers/thunderstorms likely in the evening as an associated surface front passes. Another upper air disturbance will move into the region on Sunday night/Monday with an associated surface low pressure system developing to our southeast. More showers/thunderstorms are therefore possible Sunday through Tuesday as the system departs.

Note: Forecasts and updates will be unavailable 11-19 August. The next forecast will not be issued until 20 August. For weather information during this period, please visit the National Weather Service at

Five Day Forecast:

  • Friday: Mostly sunny and seasonably. Scattered showers/storms in the late evening and overnight (40% chance). Variable wind around 5 mph. High: near 88 oF.
  • Saturday: Mostly cloudy with showers/thunderstorms likely (75% chance). Southeast wind 5-10 mph. Low: 72-76 oF. High: 80-84 oF.
  • Sunday: Overcast with showers/thunderstorms likely (75% chance). East wind 5-10 mph. Low: 70-74 oF. High: 80-84 oF.
  • Monday: Mostly cloudy with showers/thunderstorms likely (70% chance). Northeast wind 5-10 mph. Low: 70-74 oF. High: 82-86 oF.
  • Tuesday: Partly sunny with scattered showers/storms possible (40% chance). Southwest wind 5-10 mph. Low: 70-74 oF. High: 82-86 oF.

ISSUED: 10 August 2018  at 0640
NEXT FORECAST: 20 August 2018
FORECASTER: Meteorologist A.R. Davies


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