Winter, Summer & Tropics All Influencing US Pattern

Written by on September 5, 2015 in Summer 2015, Tropical, United States of America with 0 Comments

There’s a lot on the playing field at the moment with major heat more suited to July 5 and not September 5 from the Plains to East Coast at the same time a winter-like storm system is bringing cold and mountain snow to the interior Northwest, severe weather to the Upper Midwest.

Out in the Pacific, not one but two decaying tropical systems are impacting the West Coast with one pumping wet, windy conditions in British Columbia and Alaska with the other increases thunderstorm and flash flood threat across the Desert Southwest.

Credit: AccuWeather

Credit: AccuWeather

Credit: AccuWeather

Credit: AccuWeather

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The below 5-day rainfall chart shows the moisture plume from Ignacio and Kevin.

gfs_apcpn_namer_20

That’s just the Pacific, as for the Atlantic we’ve seen the reorganisation of Fred and the development of TD 7.

two_atl_0d0

Visible satellite view over the eastern Atlantic this afternoon shows TS Fred moving NNE while a strengthening TD 7 heads west underneath.

vis-l

Pattern is sure becoming less hostile with no real dry, dusty air like we saw through June-August.

wv-l

TS Fred

144647W5_NL_sm

TD 7

144747W5_NL_sm

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Great shot of a shelf cloud over Hollywood Beach and the Miami area yesterday.

Credit: DaVincie ‏@vm56

Credit: DaVincie ‏@vm56

Seesaw Temps This Labor Day Weekend

In the Northeast, after a few hot days ending the work week, a back door cool front has pushed south through the Mid-Atlantic introducing a more comfortable Saturday-Sunday from New England to DC.

Credit: AccuWeather

Credit: AccuWeather

However, this cool spell with less humidity is brief, very brief as the high, like the cool front drifts south and off the Carolina coast later Sunday. By Monday, southwest winds have driven the July-level heat and humidity right back into the Northeast for Labor Day itself.

Credit: AccuWeather

Credit: AccuWeather

Today’s GFS 2m max

Credit: Tropical Tidbits

Credit: Tropical Tidbits

Sunday

Credit: Tropical Tidbits

Credit: Tropical Tidbits

Monday

Credit: Tropical Tidbits

Credit: Tropical Tidbits

Tuesday

Credit: Tropical Tidbits

Credit: Tropical Tidbits

Wednesday

Credit: Tropical Tidbits

Credit: Tropical Tidbits

 

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