#MEwx Windy, cold with two weather advisories and "Inverted trough" defined.
I’ve put up an Ambient WS 5000 weather station where you can view real time weather readings from this location online here.
This morning we have a chance for rain showers or patchy drizzle this morning, then rain this afternoon. Highs around 50°F. Winds are Southeast around 10 mph gusting to 25 mph, increasing to 20 to 25 mph with gusts up to 45 mph this afternoon.
Tonight we’ll have rain during evening hours, then partly cloudy with a chance of rain after midnight. Lows in the lower 30s with south winds 15 to 25 mph gusting to 50 mph, becoming west 10 to 15 mph gusting to 30 mph after midnight.
We’ve received 0.01 inches of rain here over the past 24 hours and this is just the start.
The wind is East Southeast between 1.1 MPH and 2.5 MPH.
The Relative pressure is 29.98, the Absolute pressure is 29.78 and falling with a weather graphic indicating rain and clouds.
The outdoor temperature is 36.9°F, the dew point is 35.1°F, the wind chill is 36.9°F and the humidity is 93%.
Visibility is 10.0 miles / 16.1 kilometers with drizzle and overcast skies.
The UV index is 0 placing the average person at no risk, the solar radiation reading is 23.8W/m2, the moon phase is waxing gibbous and is 48.5% illuminated. Sunrise is 6:55 AM, sunset is 4:03 PM, moonrise is 12:39 PM, Moonset is 11:31 PM and we’ll have 9 hours 8 minutes of daylight today.
The moon is waxing gibbous, our next Full Moon is on December 7 (Cold Moon), with our next new moon being on December 23.
Special Weather Statement
National Weather Service Gray ME
7:24 AM EST Wed Nov 30 2022
Locally Icy Travel Conditions Possible.
Patchy icy spots remain possible on untreated roadways and
walkways through early this morning due to light freezing drizzle
and rain. This threat will diminish later this morning as
temperatures warm to above freezing.
Tubbs
National Weather Service Gray ME
3:54 AM EST Wed Nov 30 2022
WIND ADVISORY IN EFFECT FROM 1 PM THIS AFTERNOON TO 11 PM EST
THIS EVENING.
* WHAT...South winds 15 to 25 mph with gusts up to 50 mph expected.
* WHERE...Portions of south central, southwest, west central, and
western Maine.
* WHEN...From 1 PM this afternoon to 11 PM EST this evening.
* IMPACTS...Gusty winds will blow around unsecured objects. Tree
limbs could be blown down and a few power outages may result.
* ADDITIONAL DETAILS...There is the potential for locally damaging
winds this afternoon and evening due to short duration convection
at the frontal passage.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Winds this strong can make driving difficult, especially for high
profile vehicles. Use extra caution.
Secure outdoor objects including holiday decorations.
&&
Tubbs
We’ve all heard the local weather forecaster on TV use the term “inverted trough” a few times and I didn’t know what that is. So, I looked it up. The explanation is below, and I found it on a real good web site with loads of different kinds of information that you might want to read through. I’ve copied the text below, but the pictures, as you may expect, are much better than a thousand words. The web site is:
https://www.theweatherprediction.com/habyhints/126/
“WHAT IS AN INVERTED TROUGH?”
METEOROLOGIST JEFF HABY
In the mid-latitudes of the Northern Hemisphere a
Trough is usually seen as a southerly bulge in the
height contours
. The lowest heights are generally located to the north of the trough. In an inverted trough situation, the height contours bulge to the north. This is
more common in the tropical regions where regions of low pressure ride south of a mid-latitude high pressure but can happen in the mid-latitudes when low
pressure is south of high pressure. An inverted trough bulges to the north. At first it may look like a ridge, but on further inspection it is a trough.
Both a trough and an inverted trough have a cyclonic (counterclockwise) flow pattern. A trough will tend to have more westerly winds associated with it
while an inverted trough will tend to have more easterly winds associated with it. If an inverted trough is actually a ridge then the winds will be flowing
with the height contours in the opposite direction (anti-cyclonic direction). The direction of windflow through the feature is how a ridge is discerned
from an inverted trough.
Tropical waves will show up as inverted troughs because they are generally south of mid-latitude high pressure and have an easterly wind associated with them.
Also, you may have heard the term “GFS” during the local weather forecast lately. GFS stands for “Global Forecasting System.”
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