pistolpetes11 Moderator
#1,021

Harps said:
Surely its just comparing the projected temperature with the average for this time of year? Going for about 6C below average in Ireland if that's the case


The green is a -9 , the white is -16/-17 and the purple is -18/-19

Has -9 on green if you look closely at it

Redsunset Registered User
#1,022

Correct
But in F not c

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pistolpetes11 Moderator
#1,023

redsunset said:
Correct
But in F not c


How stupid of me Had not noticed , dam americans

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BEASTERLY Registered User
#1,024

pistolpetes11 said:
The green is a -9 , the white is -16/-17 and the purple is -18/-19

Has -9 on green if you look closely at it


I presume that's Fahrenheit? If not....

pistolpetes11 Moderator
#1,025

BEASTERLY said:
I presume that's Fahrenheit? If not....


Il have to nip off the CFS model to get a few FI charts so I sweep my indiscretions under the table


WOW look at this beauty

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dexter647 Registered User
#1,026

Helloo...

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aurora 527 Registered User
#1,027

Nice..

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Musicman2000 Registered User
#1,028

And way in on FI on the the 12z ECM run, signs of the scandi high pushing west again.

Elmer Blooker Registered User
#1,029

A zonal flow as flat as a pancake for next Tuesday!
I think flooding in E.Europe will be in the news next week, with rivers frozen solid the snow melt will have nowhere to go?

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Elmer Blooker Registered User
#1,030

Time to get the sand bags ready?
Look how far east the 546 dam line is in Eastern Europe!

tylercollins Registered User
#1,031

Elmer Blooker said:
Time to get the sand bags ready?
Look how far east the 546 dam line is in Eastern Europe!


2 questions

1.) What is the "546 dam line"?

2.) Sand bags ready. Explain?

Lucreto Registered User
#1,032

tylercollins said:
2 questions

1.) What is the "546 dam line"?

2.) Sand bags ready. Explain?



My guess is warmer temperatures will melt all the snow still lying on the ground.

Elmer Blooker Registered User
#1,033

tylercollins said:
2 questions

1.) What is the "546 dam line"?

2.) Sand bags ready. Explain?


The Dam line is the height of the 500mb level above sea level which varies depending on how cold or warm the lower atmosphere is.
A sub 528 dam is generally required for snow but the 546 is usually in the vicinity of Ireland in winter and not so far east.
We need blue colours over Ireland for any decent winter weather. This chart is a perfect example. (see graph on right of chart)


snow on the ground melts quickly but ice on rivers takes much longer. There was serious flooding in the UK in March 1947 because of this.

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arctictree Registered User
#1,035

A final blast of winter perhaps?



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