#MEwx Warm temps, lots of melting and GFS explained
I’ve put up an Ambient WS 5000 weather station where you can view real time weather readings from my location online by clicking here.
This morning we have partly sunny skies with highs in the mid 40s. Winds are Northwest around 10 mph gusting to 25 mph.
Tonight we’ll have mostly clear conditions during evening hours, becoming partly cloudy. Lows in the upper 20s. Winds will remain Northwest around 10 mph gusting to 20 mph in the evening, becoming light and variable.
We didn’t receive any snow here over the past 24 hours.
The wind is West Northwest between 6.1 MPH and 6.9 MPH.
The Relative pressure is 29.59, the Absolute pressure is 29.39 and rising with a weather graphic indicating sun and a few clouds.
Visibility is 10.0 miles / 16.1 kilometers with partly cloudy skies.
The UV index is 0 placing the average person at no risk and the solar radiation reading is 29.6W/m2. Sunrise is 6:51 AM, sunset is 6:46 PM, moonrise is 4:08 AM and Moonset is 12:29 PM. The moon is Waning Crescent and is 37% illuminated. We’ll have 11 hours 56 minutes of daylight today. The next Full Moon is on April 6 with our next new moon being on March 21, 2023 .
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 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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