Jun 30, 2015 9:22 PM
NH1 Weather Insider: Wednesday Showers & Storms
NH1 Chief Meteorologist
Ladies and Gentlemen, a big welcome to the month of July...considered to be the hottest month of the year. Though i have to admit, the outlook for this July in the long range does not look very hot at all for the eastern 2/3rds of the nation. The heat will remain in the west with a huge heat ridge. Meanwhile the wet spring in the midwest, and wet soil is having an impact on temperatures from the midwest to the Great Lakes. The water in the ground can help cool the air above it. There is a lot of evaporation happening in these areas. As evaporated water, cools and condenses, it helps to cool the air, thus the term evaporational cooling. With a heat ridge to the west , troughs will have a tendency to swing into the Great Lakes and Northeast. Even though the outlook is for below normal temperatures, we not going to be walking around in fleeces this month. It just will not be very hot. In fact, seasonal air is more likely in the 70's and 80's in this kind of pattern with no prolonged heatwaves. That is good news to many. There are some signs that warmer air could hang along the east coast of the US...so either way, summer still has plenty in the tank...but you have to wonder when we will see our first 90 degree day?
Now that that summer is officially underway, it now starts to move at warp speed which no one can control unfortunately, not even a meteorologist! Sorry, but that one second of daylight we received Wednesday because of the Earth's is not going to help! Wednesday will be an unsettled weather day as we will watch a warm front pushing through in the morning hours which may come with a few downpours or even a thunderstorms. Expect showers in the morning. As this warm front lifts through, SNH will be able to climb into the warm sector with highs in the Lwr-mid 70's. I expect a bit of a lull in the action during the midday between noon and 3 PM. The question is how much instability will the morning showers wipe away ahead of the following cold front for the afternoon. Models are hinting as some instabilty growing for the afternoon ahead of this cold front. There is the potential for a few scattered storms to develop during the late afternoon and early evening hours as this cold front passes. The best window for any strong storms to form will be between 4-8 PM. They could come with some gusty winds, small hail, and heavy rain. No widespread severe weather is likely, but the Severe Storms prediction Center has us in a marginal risk, meaning there is the potential for a few to pop up.
Once this cold front is through, building high pressure follows in for the end of the week. Temperatures will remain comfortable in the 70's and Lwr 80's. Plenty of sunshine is expected right through the 4th of July weekend with warming temperatures into the Lwr-mid 80's possibly by Sunday. Can it get any better than that? Temperatures will remain warm, but not hot..into the start of next week for Monday and Tuesday...A cold front will push through next Wednesday for our next best chance of showers or a T'storm.