Wednesday January 29 2020
Temps have been chilly, but not cold. As some colder air does arrive, it will help to clear out the stubborn skin. So the trade off for sunshine will be a return to ‘normal’ temperatures. The outlook this weekend still has a coastal storm, just a little closer. The upper level energy from the Great Lakes is the piece that keeps this system in question. If it arrives sooner, the near miss could end up with some wintry impact. See more below.
Wednesday January 29, 2020 in Baltimore
Average High: 42ºF
Record High: 70ºF in 1949
Average Low: 25ºF
Record Low: -3ºF in 1987
*Record Snow 233.3″ in 1922
Sunrise: 7:17 AM
Sunset 5:21 PM
*Daylight = 1:56 longer than yesterday
*Bay Water Temperature = 40ºF at Thomas Pt. Light House
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The Jet Stream this weekend will bring the needed cold air aloft and trough to support a storm. But the timing is the key.
Here is a snapshot for Saturday night of the jet stream height anomaly at 500mb. That is around 18,000 Ft above the ground. The Cold Core of the trough is projected to be just west of Cleveland, OH. The coastal cold air is lagging behind the surface storm.
- ‘IF’ the Cold Core arrives sooner (and this type of pattern often does), then it will help to pull the coastal storm closer to the coast. That would allow some phasing, and introduce the wintry mix and snow into our region.
- ‘IF’ that does not time out, then there will be a mix with showers Saturday night as that cold core would arrive by itself.
Storm Simulation —> slider
This is the European ECMWF Model. The coastal Low is trending a little closer to our region. That is the element to watch with each run.
It is all about timing the upper level energy with the coastal Low. Don’t change your plans yet, but keep them under consideration.
*Disclaimer: This is a blend of computer models. But mid to long range computer guidance is less accurate beyond 5 days.
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WEATHER WIFE COLLECTION
- Thanks to Shannon (weather wife) for hand picking items ‘she’ wants to wear
- The Yoga Pants have side leg pocket for your phone
- The Hoodie is extra soft and has the important ‘thumb holes’
Winter Outlook Series:
See the maps for when we normally expect the first frost in this link.
Baltimore Weather At BWI May Not Be As Hot As Reported
Construction at the airport close to the weather station may be added artificial heat. Click here or the image for the details.
Atmospheric Memory Shaped The US East Coast
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