I provide a weather email service for people in MD. I am a storm chaser & Skywarn spotter. For daily weather tidbits follow me on Twitter: @wxmanMD.
By: cws6196 , 2:33 PM GMT on October 28, 2012
This morning's rain is from Sandy and will continue through Wednesday I think you all know the dynamics we are dealing with by now since I have been talking about this for days. As Sandy merges (phases) with the arctic low the temperatures will plummet and Sandy will actually strengthen. The pressure in Sandy will be as low as what we would typically see in a category 3 hurricane. She is currently a category 1 due to wind speed and will officially remain as such when she hits land somewhere in S NJ or DE. As I have been saying, do not watch the track of the eye. Winds in the 40s+ mph extend over 400 miles out from the center.
CONFUSION EXPLANATION / CAUTION: I want to take a quick moment to explain a technicality. There will most likely not be any hurricane watches/warnings issued for us as Sandy approaches. Later today, as Sandy merges with the arctic low she will technically no longer be classified as a hurricane, rather, an extra-tropical storm This means she will no longer be tracked by the National Hurricane Center, and only they issue hurricane watches/warnings. As Sandy transitions the local NWS offices will take over control of the forecasting. So here's my caution; just because there will not be hurricane watches/warnings issued DOES NOT mean Sandy has weakened, nor does it mean she is no longer a threat. This is only a technicality based on the distribution of job duties within NOAA.
TIMING: Those in S MD will see stronger rain and wind later this afternoon through Tues evening. Central MD will see the stronger rain and wind near midnight tonight through Wednesday morning.
WIND: The NWS has issued a High Wind Warning as wind speeds could be in excess of 60 mph. We should see sustained winds in the 40s+ mph beginning Monday afternoon through late Tuesday. Winds in the 20s mph will start later this evening. As the storm begins the winds will be from the north, shifting to the NW and finally coming from the S as the storm moves away later Tuesday.
RAIN: The NWS has issued flood and coastal flood watches and warnings. We could see anywhere between 5 inches and a foot of rain locally. Storm surge should be under 2 feet, but tides will be higher than normal due to the full moon Monday. I see the flood threat greatest as a result of the amount of rain and clogged drains due to the falling leaves.
SNOW: Not really a factor for S MD or Central MD, but the temps will be dropping into the 40s and 30s with snow and blizzards in northern VA and western MD, so the sight of some flakes for us is not out of the question, but not an issue.
Follow me on Twitter (www.twitter.com/wxmanmd ; no registration needed) for frequent updates and other info on Sandy. My Weather Phone is and will remain updated throughout: 443-470-9804.
Comments will take a few seconds to appear.