Friday, May 25, 2007

A Hot May-Day!

CT Observations17Z 25 May 2007 STN TIME PMSL ALTM TMP DEW RH DIR SPD GUS VIS CLOUDS Weather P01
DD/HHMM hPa inHg F F % deg kt kt mile in
==== ======= ====== ====== === === === === === === ==== ======= ============ ====
BDL 25/1651 1019.6 30.11 91 58 33 320 5 10.0 SCT055
BDR 25/1652 1020.8 30.15 78 58 50 250 11 10.0 CLR
DXR 25/1653 1021.3 30.17 86 57 37 320 5 10.0 CLR 0.00
GON 25/1656 30.11 79 63 58 240 10 6.0 CLR H
HFD 25/1653 1019.7 30.11 90 55 31 4 10.0 CLR
HVN 25/1653 1020.5 30.14 77 59 54 220 9 15 10.0 CLR
IJD 25/1652 1020.2 30.13 89 54 30 340 10 10.0 CLR
MMK 25/1653 1020.0 30.13 90 55 31 20 5 10.0 CLR
OXC 25/1655 30.19 84 61 45 0 0 6.0 FEW037
YSCB 25/1700 30.36 37 36 93 360 3 6.2

Strong High pressure is heating up temperatures today.

Tuesday, May 15, 2007

Kelvin Helmholtz Wave Clouds in CT

Some viewers emailed me asking......what were these clouds in the sky yesterday???


Is this an awesome picture or what? A big thank you to Trish who snapped this photo along I-91 Monday5-14-07 at 1:41PM.

These clouds are called Kelvin Helmholtz Wave Clouds or (KH) instability clouds. They are formed by the interaction of different velocities between two relatively stable layers. For more information....click here.

There was generally a NW component to the wind at or above 850mb when these clouds were observed. Speeds were up to about 100kt close to 300mb.

Monday, May 14, 2007

From Frost to Full Sunshine!

Hello!
Temperatures started off on a cold note this morning. KDXR was at 33f and there were colder areas. Now, conditions are beautiful with high pressure, clear skies and warming temperatures.
Long Island Sound water temperatures are curently in the 50s and this will cause cooler temperatures along the water's edge.
Summer temperatures are forecast for tomorrow as 850mb temperatures warm through the next 24 hours.
Interesting weather will move in starting Wednesday along a cold front. This front will slow as the upper level system slowly drifts across the Northeast through next weekend. Clouds and light showers will dominate the pattern late week into the weekend...stay tuned! -Gil



Monday, May 7, 2007

An Interesting Pattern

There are some interesting features on the weather map this morning! A huge ridge across the Northeast is delivering some really nice weather with blue skies and cool temperatures. Many stations in Connecticut were down to 32f this morning.
The severe weather is once again alive across the midwest and what is that low off of the North Carolina coast? This is a really interesing feature. There are some indications of this low trying to go warm core over the next 24 to 36 hours! Yes, warm core about a month before the official start to hurricane season. The GFS modeled this going warm core yesterday. I have already noted some gusts over 50kt in NC as the pressure gradient tightens. Let's see how this unfolds.
I am expecting some big temperature contrasts between inland and shore communities tomorrow and Wednesday. 60s to 80s.....stay tuned!!! -Gil


Wednesday, May 2, 2007

A Great Weather Day

Clouds and drizzle lingered for a few hours this morning across the state before clearing midday. Temperatures recovered into the 60s. To recap last night's data....I would give a letter grade "F"! QPF totals were much lower than predicted by the NAM and GFS!
We are looking at a prolonged period of fair weather. High pressure will slowly build in across New England from Central Canada. I am a little concerned about Sunday as a NE flow may try to get going. There are some hints of Drizzle and low clouds for NE Mass. I will watch that closely.
A weak cold front will wash out over Connecticut Monday Night and Tuesday Morning. I am going with a dry forecast now with just a band of cloud cover.
A few side notes:
Here is my forecast graphic for tomorrow:


Plus I had the SkyMax Mobile weather Lab out today in the beautiful area of Easton at Helen Keller Middle School.





Oh, and I was elected Employee of the month today as well! -Gil

Tuesday, May 1, 2007

Rain On The Way!

Dry weather dominated for the day today. Changes are on the way for tonight. A quick moving system off to the West will glide right across Connecticut overnight. QPF amounts based on the 18Z GFS run range from .25" NE to 1.25" SW in Connecticut.
The NAM has slightly less QPF, but still generous.
There are already some convective looking elements across Central New York State. Perhaps there could be some thunder tonight? Stay tuned!