#MEwx Wet, cloudy and Inverted Weather Trough defined
This morning we have mostly cloudy skies, becoming partly sunny. A chance of showers with a slight chance of thunderstorms. Highs in the mid 70s with southwest winds around 10 mph, becoming northwest this afternoon.
Tonight we'll have mostly clear conditions with lows in the mid 50s. Northwest winds around 10 mph during evening hours, becoming light and variable.
The wind direction is Northwest between 0.0 MPH and 0.2 MPH.
The Relative pressure is 29.75, the Absolute pressure is 29.55 and rising with a weather graphic indicating sun and a few clouds.
We received 0.11 inches of rain here over the past 24 hours.
Our outdoor temperature is 63.0°F, the humidity is 97% and the dew point is 62.1°F.
If you want to see real-time instrument readings from my personal weather station in my North field click Here. That will take you directly to my WIFI weather station.
Visibility is 10.0 miles / 16.1 kilometers with overcast and rain.
The UV rating is 0 out of 16, The moon is 32.3% illuminated, the moon phase is Waning Crescent, Sunrise is 5:27 am↑ 64° Northeast, sunset is 8:02 pm↑ 296° Northwest, Moonrise is 12:21 am↑ 63° Northeast, Moonset is 3:33 pm↑ 300° Northwest and we'll have 14 hours 34
minutes of daylight today.
Two weather related terms defined:
The local weather forecaster on TV has used 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 informative web site that you might want to look at. 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 another term "GFS" during the local weather forecast lately. GFS stands for "Global Forecasting System."
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