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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Summer 2017 Climate Digest


Overview

The seasonal global land and ocean temperature for June–August 2017 was the third highest since global records began in 1880. The average temperature across the land surfaces was 2 degrees Fahrenheit above the 20th century average, the second highest June–August period in the 138-year record, slightly cooler than summer 2016.

The ocean surface temperature tied with 2015 as the second warmest summer season on record.

The United States had it’s fifteenth (15th) warmest and sixteenth (16th)  wettest summer in 2017.

Two very significant phenomena took place this past summer, first the “Great American Eclipse” which occurred on August 21st when the moon passed directly between the sun and Earth causing a total solar eclipse. Satellites saw the moon’s shadow glide across the United States from Oregon to South Carolina!

A week later tragedy struck when Hurricane Harvey made landfall in Texas. The slow moving storm dropped torrential rains across northeast Texas and southwest Louisiana. Record rainfall led to unprecedented flooding in Houston and surrounding areas. Tens of thousands of people were displaced due to floodwaters with thousands of homes and businesses destroyed. At least 70 fatalities were blamed on Hurricane Harvey

The quarterly climate digest, produced seasonally, consists of a short movie (3:24 minutes) made for SOS and an MP4 video accessible through YouTube.

NEW! A Spanish language version is also available on 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 the August 21 total solar eclipse
      • GOES-16 animation of Hurricane Harvey making landfall (preliminary-non-operational data)

References:

      • https://www.ncdc.noaa.gov/sotc/global/201708
      • https://www.ncdc.noaa.gov/sotc/national/201706
      • https://www.ncdc.noaa.gov/sotc/national/201707
      • https://www.ncdc.noaa.gov/sotc/national/201708
      • https://www.theatlantic.com/technology/archive/2017/09/hurricane-harvey-deformed-the-earths-crust-around-houston/538866/
      • http://wapo.st/2x9O7j5
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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Spring 2017 Climate Digest


Overview

Globally, the average land and ocean surface temperature for March through May 2017 was the second highest since global temperature records began in 1880, coming in at 1.66°F (0.92°C) above the 20th century average, second to 2016 by a mere 0.15°C (0.27°F).

The most notable hot temperatures occurred over Asia, where temperature departures were 5.4°F (+3.0°C) or higher!

The United States had its’ eighth (8th) warmest and eleventh (11th) wettest spring on record.

The March through May average sea surface temperature was also the second warmest ever recorded.

Spring marks the beginning of tornado season, and 2017 was no exception. More than a dozen tornadoes touched down across five different states on March 6th. Tornado outbreaks in early and late April across the central and southern U.S. resulted in at least 8 people losing their lives. And a record-breaking tornado touched down in Wisconsin on May 16th when an EF-3 tornado stayed on the ground for 83 miles – over 6 times the length of the island of Manhattan.

The quarterly climate digest, produced seasonally, consists of a short movie (2:54 minutes) made for 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
  • Seasonal tornado highlights

References:

  • https://www.ncdc.noaa.gov/sotc/global/201705
  • https://www.ncdc.noaa.gov/sotc/national/201705
  • https://www.ncdc.noaa.gov/sotc/national/201704
  • https://www.ncdc.noaa.gov/sotc/national/201703
  • http://www.weather.gov/mpx/May_16th_Wisconsin_Tornado_Upgraded_to_EF3
Credits:
EarthNow Team
National Oceanic and Atmospheric Administration (NOAA)
Leigh Orf tornado simulation graphics

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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