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E PA/NJ/DE/Okle: Banter/Non Storm OBS thread


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Not for nothing... but the top three in historical verification are:  #1 ECMWF  #2 UKMET #3 JMA  :o

 

Not sure where it gets such a bad rep.  Perhaps because it runs in 12 hour increments so some assume QPF totals are ridiculous not accounting for the extra 6 hours?

I would love to see this JMA verification. I can't find a link for it right now, but the last I looked JMA was a distant 5th behind the Canadians.

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JMO, Ray, but the UKMet seems to do good in mundane situations, but has real problems dealing with explosive, convective type situations. At least that's been my experience with it over the last couple years (which is also the area where the GFS has made the biggest strides with their radiation package).

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JMO, Ray, but the UKMet seems to do good in mundane situations, but has real problems dealing with explosive, convective type situations. At least that's been my experience with it over the last couple years (which is also the area where the GFS has made the biggest strides with their radiation package).

OK thnx.  I must admit I don't follow the UKMET much. 

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can someone explain to me why you can snow with lake effect with like 15dbz soundings, yet on others storms 30 dbz is virga? Its snowing here on top of the mtn, dp 4 and the dbz's are like 5

 

Lake Effect usually is a very low echo on radar, since the snow is generated by low level cumuliform clouds.

Synoptic storm echoes start much higher from mid-level stratiform clouds.

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What are the RHs in each of those situations?

Im not sure what the virga storms RH was, but right now mine is 50% and i have been getting on and off snow showers all day with a dp of 4. Just interested in how such low echoes from lake effect can make it snow but when you get under a 20-30 dbz from the virga storm it evaporated.

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I was looking at some of the long term models and early February continues to look pretty exciting. While researching some of the great east coast blizzards of February, I came across the Great Blizzard of 1899. The description from Wikipedia almost seemed hard to believe, at least as far as Florida is concerned. It states:

"On February 12, snow started falling from Fort Myers and Tampa in Florida west towards New Orleans. Blizzard conditions were reported north of Tampa along the west coast of Florida due to ocean-effect snow. The storm crossed the Florida peninsula and intensified as it rapidly moved up the Eastern United States. High Point, North Carolina recorded 10-12" (25–30 cm) of snow, and temperatures as low as 10 °F (−12 °C) on the 11th, 5 °F (−15 °C) on the 13th, and 3 °F (−16 °C) on the 14th. It was said to be the coldest weather known to the oldest inhabitants. Washington, D.C. recorded its all-time record single snowfall of 20.5 inches (52 cm), though it was later broken. Cape May, New Jersey recorded 34 inches (86 cm), which is the highest single storm snowfall total ever in New Jersey, in what is normally the least-snowy part of the state."

And I thought living through the Blizzard of 96 was exciting.

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I was looking at some of the long term models and early February continues to look pretty exciting. While researching some of the great east coast blizzards of February, I came across the Great Blizzard of 1899. The description from Wikipedia almost seemed hard to believe, at least as far as Florida is concerned. It states:

"On February 12, snow started falling from Fort Myers and Tampa in Florida west towards New Orleans. Blizzard conditions were reported north of Tampa along the west coast of Florida due to ocean-effect snow. The storm crossed the Florida peninsula and intensified as it rapidly moved up the Eastern United States. High Point, North Carolina recorded 10-12" (25–30 cm) of snow, and temperatures as low as 10 °F (−12 °C) on the 11th, 5 °F (−15 °C) on the 13th, and 3 °F (−16 °C) on the 14th. It was said to be the coldest weather known to the oldest inhabitants. Washington, D.C. recorded its all-time record single snowfall of 20.5 inches (52 cm), though it was later broken. Cape May, New Jersey recorded 34 inches (86 cm), which is the highest single storm snowfall total ever in New Jersey, in what is normally the least-snowy part of the state."

And I thought living through the Blizzard of 96 was exciting.

Does anyone know if that Cape May record still standing?  Someone told me this about 20 years ago and I never followed up on it.

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Does anyone know if that Cape May record still standing?  Someone told me this about 20 years ago and I never followed up on it.

 

Yes it is.  There was a report in 1996 of 35", but it was found to be bogus (the observer didn't consider the existing snow pack in his measurement).

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