#MEwx Warm with rain posible and the weather term "Inverted Trough" explained.
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This morning we have partly sunny skies with a slight chance of showers this afternoon. Highs in the mid 80s with Southwest winds around 10 mph gusting to 20 mph.
Tonight we’ll have partly cloudy skies with showers and a chance of thunderstorms after midnight. Lows in the lower 60s. Winds will be Southwest around 10 mph in the evening, becoming light and variable.
The outdoor temperature is 73.4°F, the dewpoint is 65.7°F and it feels like 74.1°F.
We didn’t receive any rain here over the past 24 hours.
Today’s sunrise is 4:57 AM, sunset is 8:28 PM and we’ll have 15 hours 30 minutes of daylight today. Moonrise is 11:48 PM and Moonset is 9:51 AM. The moon phase is Waning gibbous and is 79% illuminated. Our next full moon will be on June 21 and our next new moon is on July 5.
The wind velocity is between 0.0 MPH and 5.4 MPH from the North Northeast.
The Relative pressure is 29.46, the Absolute pressure is 29.26 and falling with a weather graphic indicating sun and a few clouds.
The Humidity is 77%, the UV index is 3 placing the average person at moderate risk and the solar radiation reading is 411.6W/m2.
Visibility is 10.0 Miles / 16.1 Kilometers with Sun and clouds.
I’ve heard 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. 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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