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Moving forward into April..


earthlight

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SE winds are a killer this time of year near the coast. Hopefully the NAM is overdoing this marine layer and the warmth heads past us.

Upton has 40's for LI which is even colder than what the NAM is saying. I think Upton has been having such a cold bias lately and barely in the 50's for the city. The people in there except for Bill Goodman are morons. Of course the NAM has been a real good model but there will be a big temperature contrast last week and week before even with marine layer LI was no colder than the 50's while in the warm sector it was in the 70's and 80's for the city and southwestward. I hope the Euro is right. I want the warm weather for once. I sick of being in the cold air. This is to Upton and to all the models that is giving me the cold runs gun_bandana.gif

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wetter seems like the better way to go right now. Check out the radar, I bet not too many people thought it was going to rain tonight.

no suspects for any long duration rain events, i think from here on out we slowly dry out thru may as we start to get warmer and warmer each week.

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almost every SREF member warm sectors us on wednesday

f75.gif

I wondering why does do Upton forecast for eastern half of the area for highs to be only in the 40's where the models differ with whether the area will get into the warm sector or not. That shows Upton has a cold bias. Even the area does on the cool sector most of the area will see 50's with the city getting into the 55-60 range with LI 50-55 F except maybe Eastern LI will struggle to much above 50 F like what happen last Monday.

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Here is proof Upton's cold bias forecast. This is for Long Island

Tuesday: A chance of rain, mainly after 10am. Cloudy, with a high near 48. Northeast wind between 6 and 11 mph. Chance of precipitation is 40%.

Tuesday Night: A chance of rain. Cloudy, with a low around 40. East wind between 10 and 13 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible.

Wednesday: A chance of rain or drizzle, mainly between noon and 3pm. Cloudy, with a high near 46. Chance of precipitation is 40%.

Wednesday Night: A chance of showers. Mostly cloudy, with a low around 43. Chance of precipitation is 50%

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Cool bias largely due to MOS hugging, probably.

850s spike to 10-13C on Wednesday, question is, how much sunshine and daytime heating?

Full-sun would spike temps to around 80, if not higher, although that is unlikely.

At the same time, MOS calling for 50s seems bogus.

High bust-potential.

I favor a current forecast of highs in the upper 60s to around 70 for the NYC metro area, cooler along the immediate coast and LI.

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Cool bias largely due to MOS hugging, probably.

850s spike to 10-13C on Wednesday, question is, how much sunshine and daytime heating?

Full-sun would spike temps to around 80, if not higher, although that is unlikely.

At the same time, MOS calling for 50s seems bogus.

High bust-potential.

I favor a current forecast of highs in the upper 60s to around 70 for the NYC metro area, cooler along the immediate coast and LI.

I can't believe Upton is calling for highs in the 40's for LI and low 50's for NYC and that is cold bias and notice they have anti-thunderstorm bias too. With this past weekend storm system they didn't put thunderstorms in the forecast until the last minute and the models hinted a day or two before it. My call is at least if the warm front goes near NYC at least temps will go near 60 F for NYC and for near Newark low to mid 60's. For most of LI and immediate coast it will be in the mid 50's.

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SREF_03HR_SVR_PROBS__f072.gif

Upton should look at this even though I don't really think severe weather is much of a possibility from the city and eastward due to the strong marine influence that will play a factor on Wednesday and more likely if there is any storms that do come into the area from the city and eastward they will be elevated in nature like they have been this last night and this past week in general. Areas well into NJ and southwestward could get more of the strong to severe storms.

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We will have to see how much cloud cover we have..but tomorrow could easily torch more than the models show with the southwest 10m winds and warming H850 temperatures.

Upton's forecast of 61F seems fair tomorrow for Westchester; 850s start around 0C and warm to near 5C, but cloud cover is clearly approaching the area by 20z when we are generally nearing our afternoon high temperature. I just don't think it's going to be possible to get to 70F given the nippy start with most places in Westchester moving into the lower 40s at this moment with cool NW winds coming down behind the frontal passage.

As for the debate about Tuesday/Wednesday temperatures and the OKX bias, I think they are justified in going cool for Tuesday as winds are E/NE with showers arriving by 18z and cloudy conditions all day...looks like a typically morose early-spring day as we've seen many times in April 2011, a month with no truly cold days but plenty of chilly, gray ones. I do believe Wednesday will be warmer than forecasted as the 0z ECM shows 850s exceeding 16C that day. I believe they are being cautious on LI since we still have an SST hangover from the cold winter, and the wind direction is certainly not ideal with a S/SE component as the high drifts offshore, but I still believe 850s merit temperatures in LI reaching the mid-upper 50s with 60-65F readings common in NYC metro.

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Upton's forecast of 61F seems fair tomorrow for Westchester; 850s start around 0C and warm to near 5C, but cloud cover is clearly approaching the area by 20z when we are generally nearing our afternoon high temperature. I just don't think it's going to be possible to get to 70F given the nippy start with most places in Westchester moving into the lower 40s at this moment with cool NW winds coming down behind the frontal passage.

As for the debate about Tuesday/Wednesday temperatures and the OKX bias, I think they are justified in going cool for Tuesday as winds are E/NE with showers arriving by 18z and cloudy conditions all day...looks like a typically morose early-spring day as we've seen many times in April 2011, a month with no truly cold days but plenty of chilly, gray ones. I do believe Wednesday will be warmer than forecasted as the 0z ECM shows 850s exceeding 16C that day. I believe they are being cautious on LI since we still have an SST hangover from the cold winter, and the wind direction is certainly not ideal with a S/SE component as the high drifts offshore, but I still believe 850s merit temperatures in LI reaching the mid-upper 50s with 60-65F readings common in NYC metro.

if we are sunny until 20z, that is plenty of time to reach 70

and 20z is looking like a good arrival time for the clouds

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