4/20 – Rob Knight’s Monday Morning “Clearing Skies” Forecast
The cold front has cleared the area pushing to the S/SE. Cloud coverage will be in and out through late morning before skies completely clear. The flow will become primarily west-northwest for about the next 48 hours with considerably less humid air over the area. There is a weak impulse moving through the flow that could conceivably produce a few sprinkles or light rain showers on Tuesday, but at this time, it doesn’t seem too likely. Somewhat larger concern is the next strong impulse moving eastward out of the Rockies on Wednesday afternoon and Wednesday night. Moisture doesn’t really return until later in the day on Wednesday with mid rising humidity. The associated disturbance and low pressure appear to track slightly northward of the current system.
There does appear to be a brief window (less than 6 hours) where conditions will be rather conducive for t-storm activity…overnight Wednesday night. The SPC highlights a marginal/slight risk for Severity Wednesday night. Only a low chance for precip for precipitation Wednesday afternoon, but that will increase Wednesday night near/north of the Interstate 10/12 corridors.