Isaac's Moisture In CT
By Steve MacLaughlin on August 27, 2012, 7:30pm
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As we continue to watch Isaac strengthen and prepare for its landfall late Tuesday into Wednesday along the Gulf Coast, there are many questions about if we will feel any effects here in Connecticut.
The image above is the model that shows the 700mb heights plus relative humidity. I love this map because it shows the moisture field and the 'origin' of the moisture.
Isaac is pretty clear to see over the Gulf of Mexico. Extending from Isaac is that green blob which represents moisture, not necessarily rain. Notice that it works all the way up the east coast and into Connecticut. That is why you can feel very high humidity outside even if we are not seeing rain from the storm. So the stickiness right now has its origins with Isaac, more than a thousand miles away.
In addition, we also see a second line of green over the Great Lakes extending southwest into Texas and the Gulf. This is the cold front that will come through on Tuesday and since it will also tap into some of the Gulf and Isaac moisture, we could see some pretty heavy downpours tonight and early Tuesday.
What about rain here in Connecticut from the remnants of Isaac? So far it looks like we should be dry for Saturday and Sunday, but late Sunday and into Monday, as the leftovers work north, we could see some scattered showers and storms here in Connecticut - but by that time, the storm will only be a shell of its former-self.
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