Maryland Weather

Today will be partly sunny with a high around 60. It will also be breezy with winds gusting to near 25 this afternoon. A disturbance will rotate down from Canada this evening, bringing a chance of showers overnight.

A low pressure center will move into the Great Lakes tomorrow, dragging a warm front into the area. The warm front will bring in even warmer air and possibly another round of showers as it moves through. Highs tomorrow will be in the upper 60s and approach 70 in many areas.

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As high pressure continues to move off the coast, a southerly return flow will bring in warmer air as we head through the week while disturbances passing to our north will provide a slight chance of a shower tomorrow night through Thursday night. A cold front will cross the area on Friday.

Expect partly sunny skies today and tomorrow. Highs today and tomorrow will be in the mid to upper 50s.

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High pressure will continue to build in behind the departing storm that brought snow to southern Maryland. Expect breezy conditions under sunny skies today with highs in the low 50s.

Winds will be lighter tomorrow, but we will still be under the influence of the high pressure, with sunny skies again and highs in the low to mid 50s. The high moves off the coast tomorrow night as a weak upper level disturbance moves through, bringing a slight chance of showers. There will be a series of these systems that will try to pass through the area through the week, but high pressure off the coast should keep us mostly dry. There is a slight chance of a shower Wednesday through Friday, but otherwise, expect mostly sunny skies with highs around 60 Wednesday, climbing into the mid to upper 60s on Thursday and mid 60s on Friday.

A cold front will pass through on Friday, dropping temperatures back into the 40s for next weekend.

 

I have created a new surface map with a java and flash loop option. I am still working to create a permanent spot for it within the site, but I wanted to get it out so people could track the snowstorm.

As far as the snow, the storm will remain to our south today, any snow that falls in Maryland today may provide a dusting to a slushy inch, mainly on grassy surfaces.

This has been a tricky forecast and the storm could still surprise us and drift north a bit more than anticipated, but it looks as though SW Virginia will be the big winners with this one. It is simply too hard to get a decent snowfall here with the setup that we see with this storm.

Remember, the LWX radar is down, so do not use that to track the storm, please use the new map, along with the TBWI radar.

Here is the URL for the new map: http://www.marylandwx.com/f5data/sfcmap.php

 

The KLWX radar is offline for upgrade and is inoperative until February 25th. This means tracking the snow on this site using the KLWX radar will not be possible.

From the NWS:

NOUS61 KCTP 172023
FTMLWX
Message Date: Feb 17 2012 20:23:30
THE DUAL POLARIZATION UPGRADE OF KLWX BEGAN AT 14Z 17 FEB 2012. KLWX WILL BE INOPERATIVE DURING THE UPGRADE PROCESS THROUGH 00Z 25 FEB 2012.

The regional radar and the TBWI radar on our Radar Data page will still be in operation.

Here is the current surface map. I have highlighted 4 areas to compare to what the GFS model from this morning had shown:

Compare that with the 12z GFS for 18z this afternoon:

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An area of low pressure continues to develop over eastern Texas and is expected to move eastward today before beginning to move to the northeast and off the Carolina coast tomorrow.

After watching the models shift the storm track north yesterday morning, all of the models began shifting the track back to the south through the day, and last night, shifted far enough south to miss the state completely.

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Today will be mostly sunny with highs in the low 50s. Expect more of the same tomorrow, with increasing clouds during the afternoon.

Now, on to the big weather story. Overnight, the models that had been showing the storm staying further south have shifted the storm north, while the models that were bringing it further north have shifted to the south. As you know with these systems, the exact track is impossible to determine at this point and any shift at all in the track has a drastic impact on the weather for our area.

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Rain will continue to overspread the area from SW to NE this morning and will continue off and on through the day. Highs will be in the low 50s. Expect clearing skies late tonight, as high pressure builds in tomorrow bringing mostly sunny skies into the first half of the weekend. Highs tomorrow and Saturday will be in the low to mid 50s.

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Today will feature clearing skies and temperatures in the low to mid 50s. Clouds will increase tonight ahead of a low pressure system that will bring periods of rain to the area tomorrow. Expect around a quarter of an inch of rain total before it ends tomorrow evening.

High pressure builds in for Friday into Saturday bringing mostly sunny skies and highs around 50. The high will gradually move off the coast ahead of the next possible storm system that could affect the area on Sunday.

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