Moist, muggy air ahead of a stalled front sat over much of New England for the days around July 23, 2003. A persistent upper-level trough remains to the West of us, destabilizing the air and providing a Southwesterly flow aloft. Unstable air, combined with dewpoints at or above 70°F, means there is ample moisture in the air for heavy rain.
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Weather Variables For Heavy Rain Event
Harrison, Maine Location
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Time
(7/23/03)
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Temp
(°F)
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10-min
Rain Accum.
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RainRate
(in/hr)
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10:00a
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71.5°
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0.04"
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0.57
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10:10a
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71.3°
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0.37"
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4.72
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10:20a
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70.9°
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0.35"
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3.79
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10:30a
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70.8°
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0.11"
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1.57
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