Winter 2017-2018 Climate Digest

The December 2017–February 2018 average temperature across the global land and ocean surface was the fifth warmest since global records began in 1880. Looking at land only, the global land surface temperature was the seventh highest in the 1880–2018 record.

La Niña conditions were present across the tropical Pacific Ocean during the three-month period. The globally averaged ocean surface temperature was 0.99° Fahrenheit (0.55°C) above the 20th century average.

The United States was warmer and drier than normal over the winter months, resulting in low snowpack for western U.S. mountain ranges. California had its second driest winter on record. A prolonged period of warm and dry conditions combined with Santa Ana winds to fuel the largest wildfire in California’s modern recorded history. The Thomas Fire broke out in Ventura county in southern California on December 4th, and continued into the New Year. By the time it was contained on January 20th, it had burned 281,893 acres. To make matters worse, heavy rains on January 9th triggered debris flows in burn scar areas, causing flash floods that claimed 21 lives in neighboring Santa Barbara County.

The quarterly climate digest, produced seasonally, consists of a short movie (3:20 minutes) made for Science On a Sphere® (SOS) and an MP4 video accessible through YouTube.

You can download the SOS content from this FTP Site.

Content includes:
– Global 3-month land temperatures
– 3-month Sea Surface Temperature (SST) anomalies
– GOES-15 IR animation of the Tomas Fire on December 5th, 2017
– MODIS False color imagery of the Thomas Fire Burn Scar

References:
https://www.ncdc.noaa.gov/sotc/global/201802
https://www.ncdc.noaa.gov/sotc/national/201802
http://www.fire.ca.gov/current_incidents/incidentdetails/Index/1922

Credits:
EarthNow Team
National Oceanic and Atmospheric Administration(NOAA)

Monthly state of the climate reports are available from NOAA National Centers for Environmental Information (NCEI) Climate Global Analysis and National Overview at https://www.ncdc.noaa.gov/sotc/

 

Category: Climate, Climate Digest

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GOES-16 Tracks the Big Three


Three major tropical storms dominated the 2017 Atlantic Hurricane season: Harvey, Irma, and Maria. These destructive hurricanes all occurred within four weeks of each other and created unprecedented challenges for coastal communities, forecasters and first responders.

Fortunately, the Advanced Baseline Imager (ABI) on GOES-16 tracked these record-setting storms and supplied critical data to weather forecasters and emergency management coordinators.

This short movie for SOS, available for preview on YouTube recaps highlights of Hurricanes Harvey, Irma and Maria featuring GOES-16 ABI imagery, plus a loop of Hurricane Harvey that includes data from the all new Geostationary Lightning Mapper (GLM).

The movie for SOS can be downloaded from ftp://ftp.ssec.wisc.edu/pub/earthnow/HurricaneSeason2017/GOES16abi.mp4

Length: 3:35 minutes
Data visualization & design: Clayton Suplinski/SSEC
Script & content: Margaret Mooney/CIMSS
Audio: Jeremy Hoffman/SMV
Music: freemusicarchive.org

Additional References/credits:

https://www.ncdc.noaa.gov/sotc/tropical-cyclones/201708
https://www.ncdc.noaa.gov/sotc/tropical-cyclones/201709
https://www.nhc.noaa.gov/data/tcr/AL092017_Harvey.pdf
https://www.nnvl.noaa.gov/view/globaldata.html
https://sos.noaa.gov/datasets/hurricane-irma-true-color-goes-16-2017/
http://www.ssec.wisc.edu/datacenter/wxsats/
http://tropic.ssec.wisc.edu/
http://www.ssec.wisc.edu/data/

Category: Technology, Tropical

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Autumn 2017 Climate Digest


Overview

The seasonal global land and ocean temperature were the fourth warmest for September–November since records began in 1880.

For land temperatures only, the three month period was the fifth warmest  for the season.

The ocean surface temperature was the fourth warmest on record. According to NOAA’s Climate Prediction Center, La Niña conditions, which prevailed at the end of November, are expected to persist through the Northern Hemisphere winter.

Two catastrophic hurricanes affected mainland United States and Puerto Rico during the fall of 2017: Hurricanes Irma and Maria.

Hurricane Irma passed over parts of the U.S. and British Virgin islands as a Category 5 storm on September 6th where complete devastation was reported. Irma next hit northern Cuba, weakening slightly while heading toward the Florida Keys before making landfall on Cudjoe Key, Florida with Category 4 winds of 130 mph. The Florida Keys were heavily impacted, with 25% of all buildings destroyed. Irma made another landfall on Marco Island, Florida as a Category 3 storm.

Later that same month, Category 5 Hurricane Maria, the strongest tropical cyclone of the year, made landfall on the island of Dominica on September 18th, causing catastrophic damage and 3 dozen deaths. Maria next made landfall on the island of Puerto Rico as a Category 4 storm on September 20th, devastating transportation, agriculture, communication and energy infrastructure.  The Federal Emergency Management Agency (FEMA) reports that federal assistance to Puerto Rico has topped $1 billion. Recovery efforts are still underway.

Not surprisingly, overall cyclone activity in the Atlantic basin in 2017 was well above average, with 17 named storms, 10 hurricanes, and 6 major Hurricanes. In terms of Accumulated Cyclone Energy, or ‘ACE’ which measures the combined strength and duration of tropical cyclones, the 2017 season is coming in as the most active since 2005.

The quarterly climate digest, produced seasonally, consists of a short movie (4:15 minutes) made for SOS and an MP4 video accessible through YouTube.


You can download the SOS content (both versions) from this FTP Site.

Content includes:

      • Global 3-month land temperatures
      • 3-month Sea Surface Temperature (SST) anomalies
      • GOES-16 animation of Hurricane Irma (preliminary-non-operational data)
      • GOES-16 animation of Hurricane Maria (preliminary-non-operational data)

References:

      • https://www.ncdc.noaa.gov/sotc/global/201711
      • https://www.ncdc.noaa.gov/sotc/national/201709
      • https://www.ncdc.noaa.gov/sotc/national/201710
      • https://www.ncdc.noaa.gov/sotc/national/201711
      • https://www.ncdc.noaa.gov/sotc/tropical-cyclones/201709
Credits:
EarthNow Team
National Oceanic and Atmospheric Administration (NOAA)

Monthly state of the climate reports are available from NOAA National Centers for Environmental Information (NCEI) Climate Global Analysis and National Overview at https://www.ncdc.noaa.gov/sotc/

 

Category: Uncategorized

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