Warming leads to increased evaporation and precipitation, which falls as
increased snow in winter.
Not exact matches
Other weather related problems like dead batteries and cars stuck
in snow banks have also
increased this
winter.
Extreme weather phenomena —
winters in which snowfall is sometimes quite heavy, and others with little
snow, will
increase in the future.
Rain falling on
snow in fall or
winter months can melt the
snow and produce particularly sudden
increases in stream flow.
Winter temperatures are also expected to
increase in the area, leading to changes
in snow cover and soil frost.
Oregon has only one station above 5,000 feet, but it too reported a strong
increase in rain vs
snow as
winter precipitation.
Risk for
snow - induced forest damage will
increase in eastern and northern Finland while
winters become milder
In locations that are accustomed to getting
snow during the
winter, the total amount of
snow each year is already decreasing as the planet warms from
increasing greenhouse gases; the percentage of precipitation falling as
snow is on the decline, with more of it falling as rain.
One reason is because an
increasing percentage of
winter precipitation is falling as rain instead of
snow in many locations.
Many automatic cars have a «
winter mode» which intentionally
increases the gear car starts rolling
in to reduce torque and prevent getting stuck
in snow / ice.
I enjoy the
increased height that this vehicle provides, and it is great for driving
in different weather conditions, especially
in the
winter snow.
The very
increase in absolute humidity that reinforced the warming trend through infrared absorption might lead to
increased cloudiness (or indeed to
increased precipitation and
winter snow cover) and thus, through reflection of insolation, to a considerable buffering of the warming trend.
Will less ice and
snow in the Arctic during
winter increase, decrease or be about the same radiation loss as years with thick multiyear ice?
Wili: As ice volume decreases, the fraction of volume which is new ice
increases, and hence the year to year variability
in new ice becomes a larger fraction of the total ice volume variability, so I don't think the smoothed downward slope will stay as smooth, i.e. you should expect bigger surprises to the upside on a given
winter if it is cold and has heavy
snow fall.
Re 9 wili — I know of a paper suggesting, as I recall, that enhanced «backradiation» (downward radiation reaching the surface emitted by the air / clouds) contributed more to Arctic amplification specifically
in the cold part of the year (just to be clear, backradiation should generally
increase with any warming (aside from greenhouse feedbacks) and more so with a warming due to an
increase in the greenhouse effect (including feedbacks like water vapor and, if positive, clouds, though regional changes
in water vapor and clouds can go against the global trend); otherwise it was always my understanding that the albedo feedback was key (while sea ice decreases so far have been more a summer phenomenon (when it would be warmer to begin with), the heat capacity of the sea prevents much temperature response, but there is a greater build up of heat from the albedo feedback, and this is released
in the cold part of the year when ice forms later or would have formed or would have been thicker; the seasonal effect of reduced
winter snow cover decreasing at those latitudes which still recieve sunlight
in the
winter would not be so delayed).
Preliminary results of an analysis of rising temperature effects on three major river systems
in the western United States — the Columbia, the Sacramento, and the Colorado — indicate that the
winter snow pack
in the mountains feeding them will be dramatically reduced and that
winter rainfall and flooding will
increase.
With more rain instead of
snow, fall and
winter flood risk is expected to
increase in most river basins.
At higher elevations, an
increase in winter snow accumulation has partially offset the melt.
For the entire Northern Hemisphere, there is evidence of an
increase in both storm frequency and intensity during the cold season since 1950,1 with storm tracks having shifted slightly towards the poles.2, 3 Extremely heavy snowstorms
increased in number during the last century
in northern and eastern parts of the United States, but have been less frequent since 2000.11,15 Total seasonal snowfall has generally decreased
in southern and some western areas, 16
increased in the northern Great Plains and Great Lakes region, 16,17 and not changed
in other areas, such as the Sierra Nevada, although
snow is melting earlier
in the year and more precipitation is falling as rain versus
snow.18 Very snowy
winters have generally been decreasing
in frequency
in most regions over the last 10 to 20 years, although the Northeast has been seeing a normal number of such
winters.19 Heavier - than - normal snowfalls recently observed
in the Midwest and Northeast U.S.
in some years, with little
snow in other years, are consistent with indications of
increased blocking (a large scale pressure pattern with little or no movement) of the wintertime circulation of the Northern Hemisphere.5 However, conclusions about trends
in blocking have been found to depend on the method of analysis, 6 so the assessment and attribution of trends
in blocking remains an active research area.
Alpine runoff throughout the Pacific Northwest is
increasing in the
winter (Nov. - March), as more frequent rain on
snow events enhance melting and reduce
snow storage.
MILANKOVITCH CYCLES overall favor N.H. cooling and an
increase in snow cover over N.H high latitudes during the N.H summers due to the fact that perihelion occurs during the N.H.
winter (highly favorable for
increase summer
snow cover), obliquity is 23.44 degrees which is at least neutral for an
increase summer N.H.
snow cover, while eccentricity of the earth's orbit is currently at 0.0167 which is still circular enough to favor reduced summertime solar insolation
in the N.H. and thus promote more
snow cover.
During the
winter, you get a beneficial reflection from the
snow on the ground to the south of the collectors which provides a «free»
increase in collected solar energy.
Whether it's a killer
winter in South America,
increased snow cover globally, record Arctic sea ice recovery, recovering glaciers
in the Alps, record high sea ice extent
in Antarctica, extreme cold
in southeast Europe, or 5 consecutive colder than normal European
winters, just to name a few, the ominous signs of global cooling are compounding rapidly.
** The UHI effect there was due to continual
snow removal during the
winter at French airports where all of the «official» thermometers are located (whereas, all of the surrounding countryside remained blanketed
in snow and showed no
increase in winter temperatures).
Cohen and co-workers set out their hypothesis as to what might be causing this flat trend
in boreal DJF temperatures
in a separate study, also published this year, entitled Arctic warming,
increasing snow cover and widespread boreal
winter cooling:
If warming continues, and
snow increases during
winters, locking up more moisture regionally until spring or summer floods release the reservoir with more energy and intensity
in those
snow - pack zones (while former recipients of rain go wanting
in drought) than
in prior regimes?
More than one - sixth of the world's population live
in glacier - or snowmelt - fed river basins and will be affected by the seasonal shift
in streamflow, an
increase in the ratio of
winter to annual flows, and possibly the reduction
in low flows caused by decreased glacier extent or
snow water storage (high confidence)[3.4.1, 3.4.3].
Inundation by Sea Floods due to
increased prectpitation Drought due to reduced precitptation Pestilence of every conceiveable variety Failure of crops Disappearnce of teh North Pole Cultivation of Greenland
Snow being unknown
in UK Terminal failure of European
Winter Sports Industry More pestielnce 50 million climate refugees Tsunamis (yep..
Bouraoui et al. (2004) showed, for southern Finland, that the observed
increase in precipitation and temperature was responsible for a decrease
in snow cover and
increase in winter runoff, which resulted
in an
increase in modelled suspended sediment loads.
Warmer
winters and less
snow cover
in recent years have contributed to
increased deer populations62 that degrade forest understory vegetation.82
How is global warming responsible for record freezing
winters with mountains of
snow and two decades without any
increase in warming?
A recent report from Climate Central shows that there will be an
increase in the continuing trend of more rain and less
snow during US
winters, which will impact the Pacific Northwest, California and other parts of the United States as well.
It has been said the
winter temperatures went up
in the years 1975 - 2005 (despite the somewhat
increased snow cover), while summer temperatures did not.
The study found that, on average, temperatures during
winter and spring had
increased during the study period and the amount of the
snow - water equivalent (or the water
in the snowpack) decreased by 25 percent.
Or Arctic sea ice loss could lead to an
increase of
snow on high - latitude land, which
in turn impacts the jet stream resulting
in cold Eurasian and North American
winters.
Reduced energy demand for heating;
increased demand for cooling; declining air quality
in cities; reduced disruption to transport due to
snow, ice; effects on
winter tourism
Risk for
snow - induced forest damage will
increase in eastern and northern Finland while
winters become milder
Scientists at the Indian Institute of Tropical Meteorology (IITM)
in Pashan, Pune,
in a research paper published
in Climate Dynamics last May, had dwelt upon the
increase in frequency of
winter precipitation (
snow or rain) owing to the western disturbances (WDs).
In some regions where
winter precipitation is projected to
increase, the
increased snowfall can more than make up for the shorter
snow season and yield
increased snow accumulation.
Cold temperatures, darkening days of wind, rain, and,
in the
winter,
snow, ever
increasing energy costs, are the messages that resonate with the electorate and our hope for a better, rationale, and humane future.
Therefore, we suggest that a significant portion of the wintertime temperature trend is driven by dynamical interactions between October Eurasian
snow cover, which has
increased over the last two decades, and the large - scale NH extratropical circulation
in the late autumn and
winter.
CL at # 45 wrote: «As ice volume decreases, the fraction of volume which is new ice
increases, and hence the year to year variability
in new ice becomes a larger fraction of the total ice volume variability, so I don't think the smoothed downward slope will stay as smooth, i.e. you should expect bigger surprises to the upside on a given
winter if it is cold and has heavy
snow fall.»
Alarmists have eventually evolved to crediting warming with producing greater snowfall, because of
increased moisture but the
snow events
in recent years have usually occurred
in colder
winters with high
snow water equivalent ratios
in frigid arctic air.
Critique 1) I have no idea about any cleansing, homogenisation or aggregation performed on this data prior to its presentation by Rutgers 2)
Snow extent is only 1 part of the issue, thickness and mass would need to be considered for a full picture 3) I haven't taken care to provide exactly similar sample sizes, however the F and t methods do not require it 4) I haven't taken care to ensure that the same number of
winter periods are present
in each sample batch; this would
increase the risk of a false positive and would have required further investigation if a weak indication of significance had been detected.
One reason is because an
increasing percentage of
winter precipitation is falling as rain instead of
snow in many locations.
Hypothesis that needs testing: A negative feedback mechanism has been triggered to an
increased variability
in «
winter» (dec to feb)
snow output, howsever caused....
With this being the «warmest
winter on record» per the warmers and this now doccumented record
snow extent, there is certainly enough observational evidence to further research my theory that the rise of man made CO2
in the atmosphere has
increased the freezing point of water by about 5degrees F.
«
In previous tests, we found
snow melt runoff was positively correlated with average air temperatures [
increases] throughout the
winter, but correlations don't always necessarily mean that one thing causes another,» Dudley told LiveScience.