Warm, humid air mass in Vermont

Data from the LSC weather station around noon Sunday reads:

Time: 12:35 EST
Temp: 84.3 °F
Dew Point:67.2 °F
RH: 55.8 %

Summer is not a time of year that starts at the June 21 summer solstice ends September 21 at the fall equinox. Summer in New England happens when southerly winds advect in a marine Tropical air mass is advected in from the Gulf of Mexico. Those of us inVermont is a warm, humid (mT) air mass.

Clicking on the the mesoscale analysis of temperature at left (see NWS website for updated map) shows the effect of elevation on these temperatures. Temperatures on top of Jay Peak and mount Mansfield are 79 F, whereas low elevation stations in the southern Connecticut and Champlain valleys are already in the 90's.

Everyone knows that 84 degrees F is hot in the noon day sun. What about a dewpoint of 67 F? What does that feel like? Well, you might note that it makes working outside a sticky experience. The humidity index chart shows that at this humidity (57% relative humidity), it makes 85 F feel more like 80 F and 90 F feel more like 100 F, My personal weather gauge, Spooky the Cat, has climbed down from her current warm spot on the sofa and is sprawled out on the floor wondering when this will all end and go back to flushing out the small burrowing mammals attacking my cabbage patch. I think that means that it's uncomfortable for all species.






Temperatures at 15Z (11 AM EDT) are already in the low 80's and dewpoints in the and high 60's in Vermont.

The situation is serious.

reads: The map at left shows three large distinct air masses clashing over the northeastern U.S.
between a warm front to the east and a cold front to the west.




By

RH:	55.8 %

80 F is obviously hot.