Spring 2020 Discussion Weather Thread (Northern Hemisphere) (december, cooling, snow, warm)

[chicagogeorge]

Got up to 79F here today. Still not bad at all.

https://twitter.com/NWSPhoenix/statu...53083951140864

[dontbelievehim]

Originally Posted by cBach

I was working on my garden last night, basically putting in wood borders and then I had to drill a hole in them and hammer in a rebar. Lots of work and I sweat profusely but my garden looks good now. Was a nice workout, needed to burn off stay at home calories lol...

Today will be slightly cooler at 87/60 but tomorrow will be much cooler at 71/57.

Nice, lol. At least you're trending positive. The Midwest went from 70s to 40s

Nice 68f today. Wish it was a little more breezy, but it wasn't bad. Mostly 70s in the ten day forecast. No complaints. Fresno, CA

Edit: local forecast shows 10 70s in a row.
Hmm.. probably won't happen, but I have my fingers crossed.

[Noodleman556]

It's autumn but it's so worth it!

The glorious record heat of April 11, 2020.

Perth Region Records
Jandakot: 39.2C beating previous record of 37.0C on April 8th 2013. +2.2C
Perth Metro: 39.5C beating previous record of 37.3C on April 8th 2013. +2.2C
Pearce AP: 40.7C beating previous record of 39.4C on April 8th 2013. +1.5C
Swanbourne (the coast): 37.3C beating previous record 35.9C on 6th April 2005. +1.4C
Perth Airport: 39.6C beating previous record 37.7C on April 8th 2013. +1.9C
Rottnest Island (19.4km off the coast): 35.2C beating previous record 33.1C on April 10th 2009. +2.1C
Mandurah: 30.4C nowhere near record max of 34.3C on April 12th 2009 lol Mandurah. -3.9C

Pearce and Millendon (a new station which reached 40.4C) now hold the record of the only stations in the Perth Metropolitan area to reach 40C in April.


Notable others:

All the places that reached 40C+ in the SW land division of Western Australia.

Millendon: 40.4C
Pearce AP: 40.7C
Gingin: 40.1C

Other record breakers (just doing major or fairly important stations ):

Cunderdin: 38.7C beating previous record of 38.1C on April 2nd 1972. +0.6C
Bunbury: 34.6C beating previous record of 33.4C on April 12th 2009. +1.2C
Collie East: 36.4C beating previous record of 34.9C on April 8th 2013.

The main centre of record breaking heat extended from around Lancelin about 100km north of Perth (unfortunately their station has daily recordings so we won't know if the record was broken until tomorrow) to around Bunbury. Anywhere north of Lancelin had near record temperatures until you go to Geraldton which was a few degrees off their record (Geraldton is about 400km north of Perth). Most if not all stations in the Perth area broke their records asides from Mandurah lol. Heat did extend all the way to the Goldfields with temperatures in the mid 30s over there, but no record breaking temps yet as the extreme heat will migrate inland tomorrow. The furthest inland location to receive record heat was Cunderdin (from what I can see), Lake Grace was 0.8C off their record and Katanning was 0.1C off tying Dalwallinu (about 200km NE of Perth) was also 0.8C off their record. Seems like the record heat stretched 100km north and 200km south of Perth, and to about 150-200km east of Perth.

Here's a map of Statewide weather stations for reference.
Western Australian Observation Stations

[LKJ1988]

Maybe mid 90's for Sunday. So more proof the planet is warming so fast now there is no way to know how fast it will keep heating up. FL will stay above normal for many lifetimes.

[sedimenjerry]

Yesterday reminded me of a first cool day in Fall. Made it to 64/65. Very dry.
Cold morning! Dropped down to 34 at our lake house. But an hour later and it's already 40. Supposed to get up to 70 today.
Then tomorrow evening is sever storms. Welcome to Spring!

[chicagogeorge]

Originally Posted by LKJ1988

Maybe mid 90's for Sunday. So more proof the planet is warming so fast now there is no way to know how fast it will keep heating up. FL will stay above normal for many lifetimes.

That's hot


Back home 60s and rainy this weekend but then much colder next week and beyond that. Pretty much for the rest of April.



https://twitter.com/Skilling/status/1248819556128296961
https://twitter.com/NWSChicago/statu...16317505110016

Cfsv2 is showing persistent cold for the Eastern two thirds but it warms up in the West. I bet it gets into the 90s not this coming week but the following week here in Phoenix


https://twitter.com/Ronh999/status/1248957271922663425

[chicagogeorge]

No thanks. I'm going to stay in Phoenix for a little while longer

https://twitter.com/MikeHamernik/sta...95503834050562

[Ed's Mountain]

Good chance of reaching 5th place but no hope whatsoever of 4th place or higher.

https://twitter.com/YEG_Weather/stat...63500912803841

[GraniteStater]

Originally Posted by chicagogeorge

No thanks. I'm going to stay in Phoenix for a little while longer

https://twitter.com/MikeHamernik/sta...95503834050562

I would like to enjoy the snow in the Northwoods, but will wait until later this year once I get a newer vehicle.

[ral31]

Still looking like a pretty big risk of severe weather tomorrow for the deep South. A moderate risk right now with too much uncertainty to introduce high risk.

Parameters for severe weather may be greatest just to my north. This is what NWS Lake Charles is saying.

The potent upper system will cross TX on Sunday, with convection
initiating west of the area late tonight, then spreading eastward
through the day. There is still an enhanced to moderate risk of
severe weather with the system as it moves through the region, as
strong deep layer shear, increasing instability and strengthening
winds aloft align to promote an environment for sustained and
long-lived supercells. The latest guidance suggests the best
potential for most of the severe weather will be just north of the
area, where mid and upper support will be greatest. However,
MLCAPE values of 1500-3000 J/kg, low level helicity values from
200-300 m2/s2, and steep midlevel lapse rates will be in place
acrs our region, so the risk of all severe modes (damaging winds,
large hail and tornadoes) will be in place.

NWS Jackson is saying an outbreak is likely.

...AN OUTBREAK OF SEVERE WEATHER IS LIKELY ON SUNDAY IN OUR
REGION...

.DISCUSSION...
Tonight and tomorrow...

High pressure ridge has slipped to the east today, setting up
southerly flow into the region, resulting in a return of warmer
moisture laden air in advance of an upper air disturbance/remnant
MCS moving out of the Southern Plains tonight. Thunderstorm chances
increasing from west to east as the evening progresses and through
the overnight. Several features complicating the model guidance for
the next 24 hours. However, plenty of instability, deep shear, and
vigorous lift resulting in a widespread threat of severe weather.
Development of tornadoes will be the main concern...damaging winds,
hail, and heavy rain are also possible. Multiple modes of
thunderstorms coming in several waves will result in a stormy Sunday
from the morning through the afternoon and evening...with the threat
for severe weather increasing through the day. As a result, the
timing of specific details is very low confidence given the
potential impact of several mesoscale features.