While there has been a 70 percent increase in heavy
precipitation events in the region since 1958, most of that has been in warm weather rainstorms, Ken Kunkel, a researcher at the National Climatic Data Center in Asheville, N.C., said.
Other forms of severe weather are also closely linked to climate change, including a rise in extreme
precipitation events in some regions and increasingly severe droughts in others.
Not exact matches
«We know that
in particular that [the
regions around] Houston, Louisiana, and Florida are prone to some of the most extreme
precipitation events in the United States,» said Sarah Kapnick, a researcher at NOAA's Geophysical Fluid Dynamics Laboratory.
According to the Climate Science Special Report released on Nov. 2, heavy
precipitation events are becoming more frequent and intense
in most
regions of the world.
It also has seen a 71 percent increase
in the frequency of extreme
precipitation events — more than any other
region in the United States, according to the paper.
Zhibin Zhang, an ecologist at the Chinese Academy of Science's Institute of Zoology
in Beijing and a co-author of the paper, says that
in the
event of a plague outbreak, «monitoring and prevention measures should be taken
in regions facing an obvious increase
in precipitation or flooding
events, and with close transportation connections with plague [centers].»
An increased risk of intense, short - duration rainfall
events in mid-latitude
regions has been predicted consistently for well over a decade as part of the pattern of human influence on
precipitation.
Increases have also been reported for rarer
precipitation events (1
in 50 year return period), but only a few
regions have sufficient data to assess such trends reliably.
«Heavy
precipitation events have increased
in several
regions in Europe over recent decades,
in particular
in northern and north ‐ eastern Europe.»
Increases have also been reported for rarer
precipitation events (1
in 50 year return period), but only a few
regions have sufficient data to assess such trends reliably (see Figure TS.10).
Increases
in the frequency and intensity of extreme
precipitation events are projected for all U.S.
regions.
2: Our Changing Climate).48, 190 Increases
in both extreme
precipitation and total
precipitation have contributed to increases
in severe flooding
events in certain
regions (see Ch.
The effects of weather extremes on human health have been well documented, particularly for increased heavy
precipitation, which has contributed to increases
in severe flooding
events in certain
regions.
The frequency of heavy
precipitation events has already increased for the nation as a whole, and is projected to increase
in all U.S.
regions (Ch.
Overall, however, scientists project an increase
in precipitation in the Great Lakes
region (with extreme
events projected to contribute to this increase), which will contribute to maintenance of or an increase
in Great Lakes water levels.
Precipitation occurs about once every seven days in the western part of the region and once every three days in the southeastern part.77 The 10 rainiest days can contribute as much as 40 % of total precipitation in a given year.77 Generally, annual precipitation increased during the past century (by up to 20 % in some locations), with much of the increase driven by intensification of the heaviest rainfalls.77, 78,79 This tendency towards more intense precipitation events is projected to continue in
Precipitation occurs about once every seven days
in the western part of the
region and once every three days
in the southeastern part.77 The 10 rainiest days can contribute as much as 40 % of total
precipitation in a given year.77 Generally, annual precipitation increased during the past century (by up to 20 % in some locations), with much of the increase driven by intensification of the heaviest rainfalls.77, 78,79 This tendency towards more intense precipitation events is projected to continue in
precipitation in a given year.77 Generally, annual
precipitation increased during the past century (by up to 20 % in some locations), with much of the increase driven by intensification of the heaviest rainfalls.77, 78,79 This tendency towards more intense precipitation events is projected to continue in
precipitation increased during the past century (by up to 20 %
in some locations), with much of the increase driven by intensification of the heaviest rainfalls.77, 78,79 This tendency towards more intense
precipitation events is projected to continue in
precipitation events is projected to continue
in the future.80
Output from global circulation models indicates that climate variability will continue to be an important characteristic of the
region in the future [52], but that climate change may increase the risk of extreme climatic
events such as multi-decade droughts and extreme winter
precipitation [53], [54].
The report, written by 220 experts from 62 countries, finds that climate change has already contributed to changes
in extreme
events — such as heat waves, high temperatures, and heavy
precipitation —
in many
regions over the past 50 years.
If an El Niño
event develops, it will influence temperatures and
precipitation and contribute to droughts or heavy rainfall
in different
regions of the world,» said Michel Jarraud, secretary - general of WMO.
[20]
In the US southern climatic
region (which extends from Mississippi through Texas) the number of daily heavy
precipitation events has increased by 25 percent over the long - term average, and tropical cyclones contributed 48 percent of that increase.
In addition to direct crop damage from increasingly intense precipitation events, wet springs can delay planting for grain and vegetables in New York, for example, and subsequently delay harvest dates and reduce yields.67 This is an issue for agriculture nationally, 65 but is particularly acute for the Northeast, where heavy rainfall events have increased more than in any other region of the country (C
In addition to direct crop damage from increasingly intense
precipitation events, wet springs can delay planting for grain and vegetables
in New York, for example, and subsequently delay harvest dates and reduce yields.67 This is an issue for agriculture nationally, 65 but is particularly acute for the Northeast, where heavy rainfall events have increased more than in any other region of the country (C
in New York, for example, and subsequently delay harvest dates and reduce yields.67 This is an issue for agriculture nationally, 65 but is particularly acute for the Northeast, where heavy rainfall
events have increased more than
in any other region of the country (C
in any other
region of the country (Ch.
Percent changes
in the amount of
precipitation falling
in very heavy
events (the heaviest 1 %) from 1958 to 2012 for each
region.
Increases
in both extreme
precipitation and total
precipitation have contributed to increases
in severe flooding
events in certain
regions.
In mountainous
regions, including much of West Virginia and large parts of Pennsylvania, New York, Vermont, and New Hampshire, more intense
precipitation events (Ch.
The frequency of heavy
precipitation events has already increased for the nation as a whole, and is projected to increase
in all U.S.
regions.
During 19 — 21 June 2013 a heavy
precipitation event affected southern Alberta and adjoining
regions, leading to severe flood damage
in numerous communities and resulting
in the costliest natural disaster
in Canadian history.
It is likely that the number of heavy
precipitation events over land has increased
in more
regions than it has decreased
in since the mid-20th century.
This report discusses our current understanding of the mechanisms that link declines
in Arctic sea ice cover, loss of high - latitude snow cover, changes
in Arctic -
region energy fluxes, atmospheric circulation patterns, and the occurrence of extreme weather
events; possible implications of more severe loss of summer Arctic sea ice upon weather patterns at lower latitudes; major gaps
in our understanding, and observational and / or modeling efforts that are needed to fill those gaps; and current opportunities and limitations for using Arctic sea ice predictions to assess the risk of temperature /
precipitation anomalies and extreme weather
events over northern continents.
The projections also indicate an increase
in the basin - averaged
precipitation and an increase
in the frequency of extreme
precipitation events over the
region as a whole.
In particular, over NH land, an increase in the likelihood of very wet winters is projected over much of central and northern Europe due to the increase in intense precipitation during storm events, suggesting an increased chance of flooding over Europe and other mid-latitude regions due to more intense rainfall and snowfall events producing more runof
In particular, over NH land, an increase
in the likelihood of very wet winters is projected over much of central and northern Europe due to the increase in intense precipitation during storm events, suggesting an increased chance of flooding over Europe and other mid-latitude regions due to more intense rainfall and snowfall events producing more runof
in the likelihood of very wet winters is projected over much of central and northern Europe due to the increase
in intense precipitation during storm events, suggesting an increased chance of flooding over Europe and other mid-latitude regions due to more intense rainfall and snowfall events producing more runof
in intense
precipitation during storm
events, suggesting an increased chance of flooding over Europe and other mid-latitude
regions due to more intense rainfall and snowfall
events producing more runoff.
Studies have shown that heavy
precipitation events — both rain and snow — have been increasing
in frequency and severity
in the Northeast
region in the past few decades.
Warmer air can hold more moisture than cooler air, which has contributed to an increase
in heavy
precipitation events in many
regions.
Since the late 1950s, every
region in the U.S. has seen an increase
in heavy
precipitation events.
«s. Based on a range of emissions scenarios (B1, A1B, A2), a 1 -
in - 20 year annual maximum daily
precipitation amount is likely to become a 1 -
in - 5 to 1 -
in - 15 year
event by the end of the 21st century
in many
regions.
Another aspect that the climate models don't seem to be predicting well enough is extreme
precipitation event frequency
in various
regions.
In the Pacific and Yukon
Region of Canada, the extreme
precipitation phenomenon known as an «atmospheric river» is one such
event that has drawn the attention of climatologists, forecasters, emergency responders and policy advisors.
Examination of these studies indicates that variability
in temperature,
precipitation, wind, and extreme weather
events is linked to transmission of mosquito - borne diseases
in some
regions of China.