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Interesting graphic showing the progress of Apples. We're blooming here now. Frist threat for region coming including DC!
So.............
The Chicken Or The Egg?
Glass half empty or Half Full?
Was the Crop damaged because of the Late Sub Freezing temps or the Early Warmth? If there wasn't such cold temps damage wouldn't of occurred. Then again, if there wasn't early warmth it wouldn't of occurred either. Either way, I think we can agree the cold was the one to physically damage them.
Article with link shows the damage to Apple Crops in Northeast and a bunch of cool graphics! Posting most of article in case link gets lost in future. Good info on the Apple Crops.
"Similar conditions last winter also resulted in abnormally high freeze damage to apple and other fruit crops in the Northeast.
Spring freeze risk in apple blossoms depends on three sequential factors: 1) the accumulation of winter chill units, 2) the accumulation of growing degree days, and 3) the probability of occurrence of damaging sub-freezing temperatures. During winter, apple trees must experience a period of chilling before the overwintering blossoms can begin to develop. Ideal chilling conditions occur between 35°F and 60°F with warmer temperatures counteracting previously accumulated chill units and colder temperatures not contributing to chill accumulation. Most apple cultivars grown in the Northeast require between 1000 and 1200 chill hours, a threshold that is typically met in late January or early February.
Once chilling is met, apple blossoms can begin to develop. This development can be tracked using the accumulation of base 41°F growing degree days*. Dormancy is broken after accumulation of approximately 100 degree days, when the blossoms enter the silver-tip stage. Blossom development culminates in bloom at about 400 degree days and finally petal fall at approximately 500 degree days. Early stages like silver-tip are able to withstand temperatures as low as 5°F without significant damage, while more advanced stages, such as bloom, experience damage at temperatures in the upper 20s."
Using the Applied Climate Information System (ACIS), the Northeast Regional Climate Center (NRCC) has developed a series of tools designed to help Northeast growers track the risk of freeze damage to their crops. The tools rely on recent and historical GHCN temperature observations and forecasts from the National Weather Service’s National Digital Forecast Database. Each morning the Northeast Regional Climate Center creates a regional temperature map using GHCN observations. National Weather Service Rapid Refresh model initialization inputs are used to guide spatial interpolation of the observations (filling in areas without data) and to account for topographic temperature variations that are not well represented by the observations.
Another beautiful day today: 23°C, sunny, no wind. Lots of people out--wish I didn't feel so awkward taking photos of strangers; then I'd have a lot more to share.
1 week earlier there and here. Question is... how green are you NOW? I think I greened up faster. Any chance you can get that same photo today or tomorrow so we can compare to here again?
close enough. Started drizzling 20 minutes later.
cleared up later
leaves full. closer to the river, leaves out faster?
The profanity sensor caught Google red handed. Never noticed that large rivers caused trees to green up faster. Aren't these different species? I assume the effect on temperatures is zero unless right on the shore.
Quote:
Originally Posted by Ed's Mountain
Another beautiful day today: 23°C, sunny, no wind. Lots of people out--wish I didn't feel so awkward taking photos of strangers; then I'd have a lot more to share.
Don't have time to post more pictures, but here's what I woke up to today in Tavelsjö. It was 21'C on Friday.
Wow. Warm ground. Impossible to stick.
Quote:
Originally Posted by nei
close enough. Started drizzling 20 minutes later.
later in the evening
Spoiler
Even though the color is off I like that one. Looks like a pleasant place to bike, walk or run or just sit and relax. I like how they mowed the grass there
The 1st photo shows that area well behind here. The other photo shows you are ahead. lol All about types. That's why its never uniform. Pockets of variety = non uniform bud/bloom/leafing
Quote:
Originally Posted by Rozenn
Never noticed that large rivers caused trees to green up faster. Aren't these different species? .
Yeah, definitely different species. Probable more Swamp Maples near the River which leaf out fastest.
Yesterday started out as a great day: warm and sunny as illustrated above. So in the evening we ventured out to Elk Island National Park just east of Edmonton.
Elk Island is home to herds of free-roaming plains bison and sure enough not long after entering the park we spotted this guy. No time to use the real camera, had to snap quickly with the cell phone.
The landscape is pure Canadiana: lakes, bogs, boreal forest and aspen parkland (hemiboreal).
The recent warm weather had brought just a hint of green to the deciduous trees if you look close enough.
And on closer inspection there were signs of spring all around.
Lots of wildlife. Here are some beaver and muskrat. Sorry, I don't have the right skills, equipment, or patience for real wildlife photography.
As mentioned, the weather started out fine and it looked like we were in for a beautiful sunset.
But then the promised cold front with its leading edge of showers and storms showed up just at the wrong time.
The wind came up and the rain started. Pretty soon it was a wash out.
With the temperature dropping and the sun gone for the night, it was time to retreat to our picnic shelter and adopt Cambium's coping strategy for dinner before heading back into town.
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Never noticed that large rivers caused trees to green up faster. Aren't these different species? I assume the effect on temperatures is zero unless right on the shore. 
