Rime ice event in February 2023

Why pay weathermen when you can just look out a window?

Pamm Cooper

Rime ice on white pines ion February 2023

Looking back on the past year it was a singularly weird one as weather events go. It was kicked off by a wide-spread rime ice event. In mid- February 2023 we had warm weather that produced a winter fog which rolled in as temperatures dropped below freezing. Several regions of Connecticut had rime ice that lasted for as long as three days as cloudy, cold weather continued. Some tree buds, like red maples, already had swollen leaf buds and thick, clear ice covered them. Damage was moderate as the sun did not appear before the ice melted.

Clear rime ice on a red maple with swollen flower buds in February 2023

A week later there was a hoar frost which occurs during clear nights as temperatures drop. Hoar frost is more crystalline and feathery than rime ice and looks like sugar crystals on leaves and stems of plants. In May, hard frost in spring occurred when many fruit trees were flowering, and peaches, plums and other tree fruits had little fruit in some areas of the state.

Hoar frost

A wet spring resulted in a high incidence of Exobasidium vaccinii galls on some rhododendrons and azaleas. These leaf galls are very heavy and as they age they develop a white coating of spores. Especially affected for some reason were many old rhododendrons.

Exobasidium galls pruned off an old rhododendron

During a hike, I came across a small pile of white pines that had recently been cut. The cui ends had a reddish pink tint to the sap, which was a new one to me. Our forestry expert said that I took the picture likely within hours or at most a day of the cut, and the tree was still photosynthesizing. Carbohydrate compounds produced by photosynthesis in the sap reacted with the air and oxidized or developed some fungal stain. This is why pines are not harvested for timber during the growing season.

Reddish sap from newly cut white pine

Canadian wildfires affected our air quality, especially during early summer. Ash in the sky made for a hazy, almost fog-like appearance to our air, especially if you looked down into low areas. A lot of perennials grew exceptionally tall during this three-week period as they reached upward for light

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Widespread haze occurred from ash blown in from Canadian wildfires

It was also a very wet year, with almost weekly rains, cooler temperatures and sometimes very heavy downpours that occurred in short periods of time. Water made both gardens and lawns mushy as soil was slow to dry out. Flooding along the Connecticut River also destroyed some crops or rendered them unsafe for consumption. Native maples had brown shriveled leaves in late summer as a result of an anthracnose leaf disease brought on by extended humid conditions earlier in the year.

Corn field flooded along the Connecticut River
Anthracnose caused early leaf drop and browning of leaves during the summer on native maples

This year was a good one for fungi. Last year with the heat and drought there was a dearth of mushrooms, but this year there were plenty to be found. This year I found my first netted stinkhorns and several earthballs plus plenty of varieties of coral fungi that seemed to be everywhere in the moist woods.

Earthball fungus (Scleroderma citrinum) after spore dispersal
Netted stinkhorn Phallus duplicata– you smell it before you see it…
Golden spindles coral fungi

White Spindles – Clavaria fragilis fairy fingers coral fungi

Slime molds were also prevalent especially in lawns and in moist woods. Some look like puffballs, like the wolf’s milk slime mold. The fruiting bodies of this slime mold are pink and have a slimy pink interior where the spores are found. Many slime molds look like tiny dots on tree trunks and logs in woodland areas.

Wolf’s milk slime mold Lycogala epidendrum

This year was a mast year for many trees including oaks, Eastern red cedar, Atlantic white cedar and white pines. The ground underneath pines and oaks were covered in acorns and cones in the fall.

Eastern red cedar had a mast year

Summarizing the year- plants either seemed to do well or were damaged by ice, late frost, wet soils, high humidity and wildfire haze among other things. Although it was nice to at least have some rain after last year’s drought, too much is not always a good thing. Next year will be a typical one for our area,, though, which means it should be totally unpredictable. Dr. Suess has a really good weather tip I will share with you-

“The storm starts, when the drops start dropping
When the drops stop dropping then the storm starts stopping.”
― Dr. Seuss

Orange glow in January 2023 just before sunset

Pamm Cooper