Archive for December, 2009

ANOTHER LOW PRESSURE SYSTEM FROM THE GULF OF MEXICO WILL BRING RAIN TO HAMPTON ROADS… AFTER A CHILLY START TO YOUR SATURDAY, MILDER AIR WILL BE MOVING IN

Saturday is starting out very cold here in Hampton Roads. My home thermometer read 28 degrees this morning.┬áMuch colder temperatures were recorded just west of Hampton Roads. High pressure right over the Mid-Atlantic states will keep us dry through Saturday evening. Due to the winds being on the light side, it really won’t feel that bad outdoors. However, clouds will begin to increase later Saturday as yet another low pressure system develops along the Gulf Coast. The track of this low should take it very close to Hampton Roads on Sunday. This means that warm air will be drawn northward due to the counter-clockwise wind flow around low pressure areas in the Northern Hemisphere. There could actually be quite a contrast in temperatures across the region on Sunday with the warmest readings right along the coast and to the south over NC. Rain will overspread the region later Saturday night and will last through part of Sunday. The precipitation could start out as sleet or even some wet snowflakes in our northern and western regions. As the warm air surges in and instability increases somewhat, thunder is even possible. I think that that is more likely well to our south where the heavier convection will most likely develop. At this time, forecasters are only predicting about a half inch of rain here locally, with higher amounts in some spots. Monday looks fair with seasonal temperatures. There really isn’t any bitter cold air following this low pressure area. The next chance for precipitation won’t be until later Tuesday, when a cold front will be approaching the area. Check back in on Sunday for an update.

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THE ACTIVE WEATHER PATTERN CONTINUES AS A FRONTAL SYSTEM BRINGS RAIN TO HAMPTON ROADS TUESDAY NIGHT… TEMPERATURES RISE OVERNIGHT AND WEDNESDAY WILL BE QUITE MILD… COLDER WEATHER MOVES BACK IN ON THURSDAY

A major storm system moving northeastward out of the Southwestern states will quickly move towards the Great Lakes. A cold front associated with that system will approach our region on Wednesday. Meanwhile, a surge of moisture will move northeastward out ahead of the cold front bringing a good chance of rain to Hampton Roads beginning Tuesday night and lasting into Wednesday. Warm air will overspread the area ahead of the cold front on Wednesday making for a very mild day for mid-December. The cold front will sweep off the coast later Wednesday which will make for a much cooler Thursday. Much colder air may move into our neck of the woods over the weekend making for an interesting forecast. A low pressure area is expeected to affect our region on Saturday and with temperatures very chilly here locally, there is a chance of some frozen precipitation somewhere in VA. Exactly where the rain/snow line will be is not certain right now, so stay tuned. Backing up to today (Tuesday), the intense low pressure area moving towards the Northern Plains will cause blizzard conditions for some areas. Severe weather may break out across the South.

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THE ACTIVE (AND RATHER WET) PATTERN CONTINUES THIS UPCOMING WEEK… IS THE PATTERN A RESULT OF EL NINO?… MILDER TEMPERATURES ARE EXPECTED BY MID-WEEK

The weather pattern this week will be very active as we see another system that should bring us rain by mid-week. Another system may bring us precipitation by next weekend. The system that affected us on Saturday brought about three quarters of an inch of rain┬áto my neighborhood. Snow fell in northern and western Virginia which was the first winter weather event of the 2009/2010 season. Amounts weren’t excessive but were enough to cause some travel problems. The Northeastern states were also affected. That system is gone and high pressure will bring us a sunny but cold Sunday. A weak system may bring us a shower on Monday but a much stronger system may bring us showers and even thunderstorms by Wednesday. This next system may bring a major blizzard to parts of the Northern Plains states and severe weather to parts of the South. The low pressure system is expected to become quite strong as it moves towards the Great Lakes. Later in the week, another system may bring some precipitation to Hampton Roads…. As I stated in an earlier post, November was the wettest November in recorded history at ORF and December seems to be shaping up to be a very wet month. Why has the weather pattern been so active? Well, it is a combination of many global factors but the major player seems to be the El Nino, or the warming of the Eastern Pacific Ocean. I’ve seen statements that this is not the typical El Nino, but nonetheless, it is causing our precipitation totals to be quite impressive. Since early August, we’ve been running above normal for the most part and we will probably see a continuation of the active pattern as we head through the winter season. Maybe that will mean some snow for us here in Hampton Roads. We are VERY overdue for snow since our last significant snowfall was in December 2004.

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A WET AND COOL SATURDAY IS ON TAP FOR HAMPTON ROADS… SOME SLUSHY SNOW IS POSSIBE ON GRASSY SURFACES NORTH AND WEST OF HAMPTON ROADS… SUNDAY LOOKS DRY AND COOL

A low pressure system from the Gulf of Mexico will move up the East Coast and will intensify as it moves northeastward. Rain has already spread into Hampton Roads and it looks like we’ll have a wet and cool day with a brisk N-NE wind. Areas to our north and west may see a brief changeover to snow as the system pulls away but major problems are not anticipated. Odds are, if there are any accumulations, it will be only on grassy surfaces. If you live out that way, you should monitor the latest forecast as a change in the storm’s track could cause more snow to fall. A major snow event is possible in parts of the Northeast. The low pulls away on Sunday which should make for a sunny day but it will be on the cool side. The next system may affect our region by mid-week and I’ll have more on that system in my Sunday morning post.

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A WET AND WINDY WEDNESDAY NIGHT IS ON TAP FOR HAMPTON ROADS… WE SHOULD SEE IMPROVING WEATHER ON THURSDAY AS THE LOW MOVES AWAY… ANOTHER SYSTEM MAY BRING MORE PRECIPITATION THIS WEEKEND

A low pressure area developing in the Gulf states will track northeastward west of our area. This system will bring us a round of wet weather later Wednesday that should taper off Thursday morning. Winds will steadily increase out of the SE and a Wind Advisory has been posted for the coastal areas. It will be quite a stormy night and our area may see a severe thunderstorm or even a tornado as the system moves through. Please pay attention to the local media for updates. On Thursday, things settle down and it should be a fairly decent day. Colder weather is expected this weekend and a system coming around the trough may bring some wet weather to our area on Saturday. Snow is even possible in the higher elevations of VA. Did you know that November was the wettest November on record for Norfolk International Airport. We exceeded the previous record by nearly two inches at over nine inches of rainfall!

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