Futenma, Japan Monthly Climatology June

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Futenma, JapanMonthly ClimatologyJune
This brief is intended for METOC personnel. It
is not designed as a one-size fits all for every
echelon. Each unit must tailor this brief to
their own specific requirements
Prepared by FLENUMMETOC DET Asheville
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IV. Seasonal Discussion

• This is the month that signals a major change in
  weather patterns. The Polar Front is the
  dominant force behind most of these
  meteorological changes.
• From Shanghai eastward to the southern tip of
  Kyushu, then northeastward parallel to the
  southern Japan coast, the front acts as a buffer
  zone between the cool northern air mass and the
  warm southern air. As long as the cool air
  persists over Japan, the tropical air is forced
  aloft to form vast, deep layers of clouds from
  which falls persistent, light rain.
• This is the Bai-U season which prevails over
  Japan. Once established, it tends to persist,
  producing a period of perpetual cloudiness,
  continuous drizzle, and constant dampness. The
  only relief from the monotony of the Bai-U is the
  occasional passage of a cyclonic storm. If the
  storm cell is large, a day or so of fair weather
  may follow, but eh Bai-U is quick to reassert
  itself.

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V. Futenma, Japan - June
Worldwide Surface Climate Summaries Version 1.0
TEMPERATURE Avg MAX Avg MIN
PRECIPITATION Monthly Mean
TEMPERATURE MAX MIN
STATISTICS
WINDS
SKY CONDITION
N S SSW 10 kts
DAYS DAYS DAYS DAYS DAYS
20 0 0 4 9
RAIN SNOW BS/BD TSTM FOG
8 7 6 5 4 3 2 1
100F 90F 80F 70F 60F 50F 40F 30F
20F
BKN/OVC 83
W E
RH 90 (0600L) RH 77 (1500L)
Potential Impacts -Winds less than 11 kts occur
68 of the time -Winds 22-33 kts occur lt .5 of
the time -Visibility less than 5 NM occurs 6 of
the time -Ceilings less than 1,000 ft and/or
visibility less than 5 NM occur 11 of the
time -Ceilings less than 300 ft and/or visibility
less than 1 NM occur 1 of the time
75F
84F
Mean 10.3
98F 62F
EXTREME HIGH EXTREME LOW
22.4 0.9
EXTREME HIGH EXTREME LOW
Prepared by FLENUMMETOC DET Asheville
UNCLASSIFIED
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VII. 1000 mb Heights (m)/Winds (kts) - June
NCEP
UNCLASSIFIED
5
VII. 850 mb Heights (m)/Winds (kts) - June
NCEP
UNCLASSIFIED
6
VII. 700 mb Heights (m)/Winds (kts) - June
NCEP
UNCLASSIFIED
7
VII. 500 mb Heights (m)/Winds (kts) - June
NCEP
UNCLASSIFIED
8
VII. 250 mb Heights (m)/Winds (kts) - June
NCEP
UNCLASSIFIED
UNCLASSIFIED