Archive for April 16, 2016

AN OMEGA BLOCK WEATHER PATTERN IS CAUSING OUR STRING OF SUNNY, BREEZY, AND COOL DAYS… HIGH PRESSURE CENTERED TO OUR NORTH WILL CONTINUE TO BRING US SUNNY SKIES AND A N-NE WIND THROUGHOUT THE WEEKEND… THE DRY WEATHER SHOULD CONTINUE THROUGH THURSDAY

You may have heard the term “Omega Block” in meteorology. It is named after the Greek letter. The upper-level wind pattern resembles this letter and what it basically means is that the weather pattern is “stuck” for the most part with very little movement of weather systems at the surface. If you are located in an area influenced by a high pressure ridge (as we are here in Hampton Roads), the weather will be dry and pleasant. If you are in a region influenced by a frontal system or low pressure, you’re going to have rain/storms at times for several days. This blocking pattern will result in our longest dry spell that we’ve had in quite a while. The last rain that we had was on Tuesday, April 12, and it probably won’t rain again until Friday at the earliest. The combination of the strong high pressure area to our north and an area of low pressure well offshore is producing a fetch of strong northeasterly winds over the Atlantic Ocean. This is producing high waves which have prompted the NWS to issue a High Surf Advisory for later today and tomorrow for portions of our coastal waters. If you do plan on going in the water, be mindful of these rough conditions and potential rip currents. Beach erosion is also possible. A backdoor cold front may cross the region on Tuesday or Tuesday night, but it should be a dry frontal passage. The next chance of any wet weather will be on Friday at the earliest. That may get pushed back to the weekend. As far as temperatures go, the northeasterly flow has kept us on the cool side and that will continue through the weekend. We’ll probably warm up a bit on Monday but temperatures should be lower following the back door cold front on Wednesday. So, enjoy the sunny weather and have a great weekend!

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