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2nd half of April, general forecast ideas and banter


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Scott - the data is here - http://www.ncdc.noaa.gov/cdo-web/#t=secondTabLink

 

And yeah Will just based on the 1981-2010 normals and SD... BDL pulled a -3.2 sigma. Surprisingly, the SD at BDL for December is higher than April in Minot (though Minot's SDs are substantially higher in DJF). 

 

If you assume a normal distribution -3.2 sigma is less than a 0.1% probability, I think. 

 

Thanks, those are some crazy numbers.

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What a 7 day forecast. You can Prob take those temps up a bit this weekend with full sun, dry ground and foliage. Finally

@StormFurey: Today's (4/23) 7-Day forecast. Much nicer tomorrow, & through the last weekend of April with dry, seasonable weather! http://t.co/6U46MbsN4v

 

 

What foliage, the dead stuff on the forest flooor from last fall?

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As fast as Powderfreaks melted that stuff is going to torch quickly. He lost 2 feet in 3 days at 1500 feet

 John Dee

I am starting to get very concerned about flooding. On Monday morning, I took a snow core sample and measured 8.5" of moisture locked in the current snow pack. That is before the 1.5" of precip fell Thur-Friday. I am not that concerned for us, all of our structures are build on concrete slabs that sit on 2-3 feet of sand. So no basements to flood and they also do not sit in low areas. Although I am also not completely throwing out the idea that I may have to run a pump or two to keep some areas that puddle from getting too out of hand. I do think that some areas up here that have not seen flooding ever, or have not seen flooding in a very long time stand a chance to see flooding this year and those that are prone to flooding...well... I would seriously be in the process of moving my belongings into a storage unit and leaving only the bare essentials to get out at the last minute. I just have this feeling that it's going to be bad, very, very bad. On the up side, all the inland lakes and ponds will jump back to very healthy levels and Lake Superior will also likely make a big jump in it's levels once all the snow in it's drainage basin melts. There is also very deep snow still on the ground in the Superior drainage areas of MN and Canada.

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Saw Duluth mentioned earlier, thought I'd pass on some snowfall records they've broken...or smashed in some cases (Feb-Apr and Apr snowfall). Also, this April is now their snowiest month on record. Amazing.

 

February-April snowfall:

1) 95.7" in 2013 (thru 7:00 AM today)

2) 68.5" in 1950

3) 66.4" in 1965

4) 65.5" in 1917

 

April snowfall:

1) 51.0" in 2013 (thru 1:00 AM today)

2) 31.6" in 1950

3) 24.4" in 1961

4) 23.7" in 1983

 

Snowiest month:

1) 51.0" in April 2013 (thru 7:00 AM today)

2) 50.1" in November 1991

3) 48.2" in March 1917

4) 46.8" in January 1969

 

Season snowfall:

1) 135.4" in 1995-96

2) 131.8" in 1949-50

3) 129.4" in 2012-13 (thru 7:00 AM today)

4) 128.2" in 1996-97

5) 121.0" in 1968-69

6) 117.1" in 1988-89

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As fast as Powderfreaks melted that stuff is going to torch quickly. He lost 2 feet in 3 days at 1500 feet

Yeah if it's ripe and they get a couple 60-70F days they'll start seeing 12" per 24 hour type melt if they don't freeze at night.

If John Dees' snowpack is 40" and he has around 10" of liquid in it, that's getting pretty ripe at 40% water. A week ago on Mansfield I was getting values as high as 40-50% water (60" snow for 26" water, and 15" for 7" water). That's what the NWS terms as "ripe" in AFD's, so it sounds like its getting to that point in the upper Midwest.

At 40-50% water, that snow pack will release very quickly...just hope they don't get any rainfall.

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Awgh   ...   puke day on-going, as advertised.   Part of me thought for a fleeting hope of over -abundance in the guidance, but nope -- not in April.  

 

The NAM is up to its usual performance with synoptic-scaled features, in being really inconsistent with how far west the rain shield from what is interestingly transforming from a coastal wave --> warm frontal wave --> warm front, as it evolves by our lat/long.   By this time tomorrow, the vestigial circulation all but entirely collapses and the flow just defaults SW under warmer low to low/mid lvl thickness.  

 

Likewise with it's poor continuity with QPF distribution, it's playing games with the timing of clearing over eastern sections, as well as the whole tranformation tomorrow morning.  After 5 cycles of insisting conditions would dramatically improve in an impressive turn-around between 12z and 18z tomorrow, the model is engineering misery for eastern sections holding on until late afternoon now.  Since other higher resolution models are not so pessimistic, I wonder if this is just the NAM's usual sucking.  We'll see..  But if the previous heavily weighted idea plays out, tomorrow at around 3 to 4 pm will be a whole different complexion than today's typical dreary April quagmire.   

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38° F and overcast. No drizzle here. I have to confess, I absolutely love this weather for some reason. It's my favorite type of weather behind a raging snowstorm. I wish it would lock into place for days, but alas, tomorrow will be a real spring day as the warm front comes through.

 

Pretty amazing stuff in the upper Plains and UP of Michigan with an incredible pattern that is not likely to repeat itself again anytime soon.. Pretty envious of it myself. Long live the cold and snow...I have an incredibly low tolerance for the heat and humidity.

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38° F and overcast. No drizzle here. I have to confess, I absolutely love this weather for some reason. It's my favorite type of weather behind a raging snowstorm. I wish it would lock into place for days, but alas, tomorrow will be a real spring day as the warm front comes through.

Pretty amazing stuff in the upper Plains and UP of Michigan with an incredible pattern that is not likely to repeat itself again anytime soon.. Pretty envious of it myself. Long live the cold and snow...I have an incredibly low tolerance for the heat and humidity.

What do you like about in warm wx season? What are you doing specifically outside today to take advantage of it?
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7 day nor'easter on GFS?

 

 

I noticed that too - haha.  

 

heh.  eh... right.    

 

Hope not, but it's been 7 years since the infamy of 2005, and statistical/probability is nearing.   

 

The NAO is now sniffed out as another blocking period heading into the first week of May -- but obviously, with shorter r-wave lengths and so forth, we'll have to see how all that biases.  

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I noticed that too - haha.  

 

heh.  eh... right.    

 

Hope not, but it's been 7 years since the infamy of 2005, and statistical/probability is nearing.   

 

The NAO is now sniffed out as another blocking period heading into the first week of May -- but obviously, with shorter r-wave lengths and so forth, we'll have to see how all that biases.  

 

Yeah probably truncation at its finest, but I laughed.

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What do you like about in warm wx season? What are you doing specifically outside today to take advantage of it?

 

LOL... we'll need to continuously bump the "what are you specifically doing outside?"  comments in the winter-time when 90% of the general public would love to be outside at 60 degrees in December, while we are rooting on -20F bitter cold.

 

Weather preferences aren't always about what specific activities you are doing outside...

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LOL... we'll need to continuously bump the "what are you specifically doing outside?" comments in the winter-time when 90% of the general public would love to be outside at 60 degrees in December, while we are rooting on -20F bitter cold.

Weather preferences aren't always about what specific activities you are doing outside...

Well do you think he's enjoying burning oil to keep warm by having the heat on? I mean why not cloudy and 60? If you're not outside this time of year doing something who cares if its 38 or 60? If this was October we'd all love it. Not the last few days of April
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