WEEKLY WEATHER AND CLIMATE NEWS
26-30 June 2017
Items of Interest:
- Welcome -- to the weather, climate and ocean educators attending the 2017 AMS DataStreme LIT Leader Summer Training Workshop that is being held in Boulder, CO from 26 through 29 June 2017.
- Change in seasons -- The beginning of July marks the beginning of the new heating season. Traditionally, meteorologists and climatologists define the heating season to run from 1 July to 30 June of the following year. Heating degree day units are accumulated commencing on 1 July. Likewise, the snow season runs from 1 July through 30 June. Seasonal snowfall totals for next season will be summed from Tuesday.
- The half-way point -- Midpoint of calendar year 2017 will occur at noon, local standard time, on Sunday, 2 July 2017.
- Participate in Field Photo Weekends -- The public is invited to join thousands of other citizen scientists from across the nation in the Field Photo Weekend during the Fourth of July Weekend (1-4 July 2017) by taking six digital photographs at a place that you choose and submit these photos via a smart phone app or on-line with your computer. These photos, to be taken in the four cardinal directions (North, East, South and West), upward and downward, will be placed in the Geo-Referenced Field Photo Library, which is a community- and citizen- science data portal for people to share, visualize and archive geo-referenced photos from the fields in the world. Field Photo Weekend is a partnership between CoCoRaHS, the Southern Climate Impacts Planning Program (SCIPP) and the Earth Observation and Modeling Facility (EOMF)
By taking photos this weekend along with another Field Photo Weekend later this year (Labor Day weekends), one can begin to visualize seasonal changes in the local landscape. Similar Field Photo Weekends were held earlier this year on the Presidents' Day (18-20 Feb. 2017) and the Memorial Day (27-29 May 2017) Weekends.
Weather and Climate News items:
- Eye on the tropics --- Two named tropical cyclones developed during the last week:
- In North Atlantic basin, a tropical disturbance formed at the start of last week over the waters of the northern Gulf of Mexico. As of early Tuesday afternoon this low pressure area had intensified to become Tropical Storm Cindy, the third named Atlantic tropical cyclone for 2017. At the time, Cindy was approximately 260 miles south of Morgan City, LA. Cindy traveled toward the northwest and then to the north, making landfall in southwestern Louisiana near Lake Charles early Thursday morning. Later that morning Tropical Storm Cindy had weakened to a tropical depression as it continued traveling north across Louisiana. Rain from remnants of Cindy continued across the Southeast and then to the Atlantic Seaboard to as far north as New England through the rest of the week. Consult the NASA Hurricane Page for additional information on Tropical Storm Cindy.
- In eastern North Pacific basin, a tropical depression formed this past Saturday evening off the southwestern coast of Mexico. By late Saturday night this depression had
organized to become Tropical Storm Dora, the fourth named tropical cyclone in the eastern Pacific during 2017. As of Sunday morning, Dora was located approximately 180 miles to the southwest of Acapulco, Mexico. Current forecasts indicate that Dora would travel toward the west-northwest over the first few days of this week, generally paralleling the southwestern coast of Mexico, before curving toward the west. Intensification is anticipated, with the possibility that Dora could become a weak hurricane. Coastal sections of Mexico could receive locally heavy rainfall from Dora.
- Comparing the nation's highest and lowest temperatures for last week's summer solstice --A news feature was posted that shows maps of the highest and lowest daily temperatures recorded on the date of the summer solstice (last Wednesday, 21 June 2017), at more than 4000 stations around the nation over a period of at least 30 years. [NOAA Climate.gov News]
- June 2017 regional climate impacts and outlooks released -- During the last week NOAA scientists and their colleagues in other partner agencies released a set of "Quarterly Climate Impacts and Outlook" reports for June 2017 in ten regions around the nation (and a section of northwestern Canada). These reports outline historical climate trends and describe major climate events that occurred during the previous three months that constitute meteorological spring (March through May 2017). They also provide future climate outlooks for the next three months (July-September 2017) that spans the remainder of meteorological summer and the first month of autumn for each of the eight regions around the nation. [NOAA NCEI News] or [NOAA NIDIS US Drought Portal]
- Virtues of the TAO buoy network are extoled -- A meteorologist with NOAA's Climate Prediction Center wrote the ENSO blog for the ClimateWatch Magazine that describes how observational data collected by the Tropical Atmospheric Ocean (TAO)Śmoored buoy array across the equatorial Pacific Ocean can be used to help monitor El Niño/La Niña conditions and provide scientists with an improved understanding of these ENSO events. [NOAA Climate.gov News]
- Review of global weather and climate for May 2017 -- Scientists at NOAA's National Centers for Environmental Information (NCEI) report that the recently concluded month of May was the third warmest May since sufficiently dense global climate records began in 1880. They based their report on preliminary calculations of the combined global land and ocean surface temperature for May 2017, which was 1.49 Fahrenheit degrees (0.83 Celsius degrees) above the 20th century (1901-2000) average May temperature of 58.6 degrees Fahrenheit. This May global temperature lagged behind corresponding temperatures for May 2016 and May 2015. When considered separately, the global ocean surface temperature for May 2017 was 1.28 Fahrenheit degrees above the 20th century average, making last month's sea surface temperature the third highest May temperature since 1880. ENSO-neutral conditions remained across the equatorial Pacific Ocean during May 2017. The average May 2017 land surface temperature was 2.07 Fahrenheit degrees above the 20th century average, which meant that this land surface temperature was the seventh highest May land temperature in the 138-year period of record. Regions of northwest Africa, central and eastern Asia, and polar Canada showing very large positive temperature deviations.
In addition, the combined global land and ocean surface temperature for the last three months (March through May), which is considered meteorological spring in the Northern Hemisphere (fall in the Southern Hemisphere), was t
The May 2017 sea ice extent data for the Arctic Ocean was the fifth smallest May sea ice extent since satellite records began in 1979. The sea ice cover on the waters around Antarctica in May was the second smallest May extent since 1980. he second highest since 1880, only 0.27 Fahrenheit degrees below the record highest May temperature set one year ago (2016). Furthermore, the ocean and land surface temperatures for this year's three-month interval were also second highest on record.
[NOAA/NCEI State of the Climate]
According to data from the Rutgers Global Snow Lab, the Northern Hemisphere snow cover extent for May was the twelfth largest in the 51-year period of record.
A global map of Selected Significant Climate Anomalies and Events for May 2017 is available from NCDC.
- The "cloud of the month" for June -- The Cloud Appreciation Society, an international society of individuals who have an appreciation of the nature and beauty of clouds, recently posted a photograph of a cap cloud surrounding a volcano in the Philippines as its cloud of the month. This cloud surrounded the peak of the Mayon Volcano, an active stratovolcano on the Philippine island of Luzon forming a collar-like feature around the upper portion of the volcano that has a similar appearance to a 17th century European ruff collar. [Cloud Appreciation Society]
- An El Niño forecast from Down Under -- Forecasters with the Australian Bureau of Meteorology recently issued an updated ENSO Outlook, in which they reported a current continuation of ENSO-neutral conditions. According to their interpretation, while sea surface temperatures (SST) in the tropical Pacific were slightly above-average, the atmospheric component of the system, the trade winds and Southern Oscillation Index were well within the neutral range. Therefore, the Australian forecasters have canceled their previous El Niño WATCH, which had meant the likelihood of El Niño forming in 2017 would have been at least 50%. [Australian Government Bureau of Meteorology]
- An All-Hazards Monitor -- This Web portal provides the user information from NOAA's National Weather Service, FAA and FEMA on
current environmental events that may pose as hazards such as tropical
weather, fire weather, marine weather, severe weather, drought and
floods. [NOAA/NWS Daily Briefing]
- Earthweek -- Diary of the Planet [earthweek.com]
Return to RealTime Weather Portal
Prepared by Edward J. Hopkins, Ph.D., email email@example.com
© Copyright, 2017, The American Meteorological Society.