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 , 2:06 PM GMT on July 18, 2012
update Wed afternoon
As I look at the current radar and the line of storms in PA moving to the SE I see some strong cells. A look at the recent data and new advisories from the SPC, and I would now add a slight, but there, risk for tornadoes primarily NE of Baltimore City (E Balt Co, Harford & Cecil). The rest of my previous post remains the same. For everyone in MD, keep an eye on the sky and be careful of any thunderstorms which form.
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original post Wed morning
It is another hot one! The NWS has issued a heat advisory for us from 11:00am-9:00pm. The increased heat and moisture (humidity) being pumped in from the SE will add to an unstable atmosphere this afternoon. Entering that instability is a cold front from the OH valley. As the front approaches us from the NW it will trigger storms. The front will be with us a couple days, allowing for storms through Friday. But, the good news is that this cold front will bring down the temps and humidity.
TIMING: Most of the storm activity should start after 3:00pm today, but some cells to the west could start a bit earlier.
LOCATIONS: The stronger storms should effect western and central MD, although southern MD is not in the clear, but the bulk of the storms will stay in central MD.
THREATS: Strong wind gusts and hail are the main threats. We shouldn't see any tornado activity. But always be prepared.
If any watches or warnings are issued I will keep you posted. I would expect at least a thunderstorm watch to be issued, but right now there is only the heat advisory. Keep an eye on the sky! Follow me daily on Twitter (@wxmanmd).
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