It was a perfect fall day in my opinion! A bit chilly in the morning with lows in the 40s for most areas. But some of our inland spots saw lows in the 30s this morning! It was the coolest morning since last spring, more specifically last April. The record low at Norfolk Airport this morning was 40° set back in 1974. So we didn’t break any records, but we were close.
High temperatures did reach the mid 60s this afternoon. We saw this cooler weather thanks to a big dip in the jet stream this weekend. A strong cold front moved in on Saturday. Cooler and drier air from Canada moved into the northern U.S. and continued to push south this weekend.
We are going to have ideal conditions (clear skies and light winds) for radiational cooling overnight. This means that all of the heat that was stored during the day will escape back into space at night. This process allows temperatures to drop quickly overnight. Sometimes the temperature can drop all the way to the dew point temperature. When this happens fog develops (frost develops if temperatures are at or below 32 degrees.) Tomorrow morning will be similar to what we experienced this morning. Upper 30s west, low to mid 40s for most areas and then upper 40s close to the coast. Make sure you give the kids the sweater/sweatshirt/jacket before they head out to catch the school bus in the morning.
Southwesterly winds will take over tomorrow and help temperatures rise into the mid 70s Monday afternoon. The jet stream is going to move north by the middle of the week, which is going to allow warmer air to move in by Tuesday and Wednesday.
The weather will stay quiet this week with the jet stream sliding to our north. A weak mid-level disturbance will produce showers to our north and west Tuesday night. A few of these showers may move into Hampton Roads late Tuesday night into Wednesday morning, but chances are low. It looks like most of the rain will stay north of us. Highs will be in the upper 70s on Tuesday and around 80° on Wednesday. Our next cold front will arrive this weekend and bring us a better chance for rain Friday night into Saturday. If the front stalls out, we could be talking about more rain on Sunday. Stay tuned!
-Meteorologist Tiffany Savona