WHAT ? BLACK ICE ....

..... https://www.nytimes.com/2017/12/08/s...=71480105&te=1

On Friday, December 15, 2017 at 1:37:48 PM UTC-8, wrote:
.... https://www.nytimes.com/2017/12/08/s...=71480105&te=1

Here in Portland https://www.youtube.com/watch?v=qeJ7z1reBLQ

-- Jay Beattie.

Black ice will get your attention, unfortunately a litle too late. It
used to be endemic around here in the winter with frequent -10F and
colder days. But winters have trended much milder and cold enough temps
for black ice in the Twin Cities have become rare. A few winters ago
(2012? 2013?) we had some old-fashioned Minnesota weather for weeks at
a time with highs below zero and lows at -20F. Lots of black ice that
winter, spinning cars all over the place until drivers adapted. Now
the winters here are like those in Chicago that I grew up with, rather
than feeling arctic for most of January. Cold for a few days then thaw,
rinse and repeat for three months.

On Friday, December 15, 2017 at 11:38:43 PM UTC-7, Tim McNamara wrote:
Black ice will get your attention, unfortunately a litle too late. It
used to be endemic around here in the winter with frequent -10F and
colder days. But winters have trended much milder and cold enough temps
for black ice in the Twin Cities have become rare. A few winters ago
(2012? 2013?) we had some old-fashioned Minnesota weather for weeks at
a time with highs below zero and lows at -20F. Lots of black ice that
winter, spinning cars all over the place until drivers adapted. Now
the winters here are like those in Chicago that I grew up with, rather
than feeling arctic for most of January. Cold for a few days then thaw,
rinse and repeat for three months.

down by the rivah yawl prob have frozen river mist on road surfaces. warm river cold air. time for the geese to fly in going south with a stop at the pond.

In Pennsylvania, there's the hill n valley effect. Erosion over thousand of years off the Appalachians, here North Mtn an extinct volcanoes I lived on estimated at once near 30000 feet eroded esp down near Lairdsville. The over view tilted in Goo Earth would be interesting as it is in person: hill n valley.

So ? one small valley is warm the next cold ...pond effect. So, when you drive up n around the dividing hills nose your vehicle as in the current Honda commercial sudden drives into a valley covered with glare ice both white n black.

North Jersey does this going west from Pine Brook as 46/80 go up a series up steps in elevation from warm swamp/NYC to the Apps foothills.

AWD ABS FWD radial tires from Yurp

On Friday, December 15, 2017 at 11:38:43 PM UTC-7, Tim McNamara wrote:
Black ice will get your attention, unfortunately a litle too late. It
used to be endemic around here in the winter with frequent -10F and
colder days. But winters have trended much milder and cold enough temps
for black ice in the Twin Cities have become rare. A few winters ago
(2012? 2013?) we had some old-fashioned Minnesota weather for weeks at
a time with highs below zero and lows at -20F. Lots of black ice that
winter, spinning cars all over the place until drivers adapted. Now
the winters here are like those in Chicago that I grew up with, rather
than feeling arctic for most of January. Cold for a few days then thaw,
rinse and repeat for three months.

down by the rivah yawl prob have frozen river mist on road surfaces. warm river cold air. time for the geese to fly in going south with a stop at the pond.

In Pennsylvania, there's the hill n valley effect. Erosion over thousands of years off the Appalachians, here North Mtn an extinct volcanoes I lived on estimated at once near 30000 feet eroded esp down near Lairdsville. The over view tilted in Goo Earth would be interesting as it is in person: hill n valley.

goo.gl/2mKF78

So ? one small valley is warm the next cold ...pond effect. So, when you drive up n around the dividing hill’s nose your vehicle as in the current Honda commercial sudden drives into a valley covered with glare ice both white n black.

North New Jersey does this going west from Pine Brook as 46/80 go up a series up steps in elevation from warm swamp/NYC to the Apps foothills.

AWD ABS FWD radial tires from Yurp Design

goo.gl/1LD1Ej