Daily Forecasts

Monday, December 11, 2017

Area Forecast Discussion

000  
FXUS61 KLWX 111542
AFDLWX

Area Forecast Discussion
National Weather Service Baltimore MD/Washington DC
1042 AM EST Mon Dec 11 2017

.SYNOPSIS...
Weak high pressure will slide offshore through tonight. An
arctic cold front will pass through the area Tuesday and weak
high pressure will build overhead Wednesday. Weak low pressure
will pass through Thursday and another one will pass by to the
east Friday. High pressure will return for Saturday.

Space Weather Forecast Discussion

:Product: Forecast Discussion
:Issued: 2017 Dec 11 1230 UTC
# Prepared by the DOC, NOAA, Space Weather Prediction Center
#
Solar Activity

.24 hr Summary...
Solar activity was very low. A single B6 flare was observed at 11/0052
UTC from an unnumbered region around the E limb. New Region 2691
(S03E33, Axx/alpha) was inactive and unimpressive. There were no
Earth-directed CMEs observed in available satellite imagery.

.Forecast...
Solar activity is expected to continue at very low levels over the next
three days (11-13 Dec).

7-Day Forecast

Today: Mostly cloudy through mid morning, then becoming sunny, with a high near 45°. West wind 3 to 5 mph.

Tonight: Mostly cloudy, with a low around 35°. South wind 5 to 7 mph.

Climate Report

212  
CDUS41 KLWX 110525
CLIDCA


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1225 AM EST MON DEC 11 2017


...................................

...THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR DECEMBER 10 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1871 TO 2017


WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
..................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 41 401 PM 67 1966 48 -7 39
1939
MINIMUM 30 301 AM 4 1876 34 -4 26
AVERAGE 36 41 -5 33

PRECIPITATION (IN)
YESTERDAY 0.00 2.23 1878 0.11 -0.11 0.00
MONTH TO DATE 0.28 1.08 -0.80 1.40
SINCE DEC 1 0.28 1.08 -0.80 1.40
SINCE JAN 1 35.38 37.77 -2.39 30.49

SNOWFALL (IN)
YESTERDAY 0.0 7.0 1904 0.1 -0.1
MONTH TO DATE 2.0 0.6 1.4
SINCE JUL 1 2.0 1.1 0.9
SNOW DEPTH 2

Sunday, December 10, 2017

7-Day Forecast

Tonight: Mostly cloudy, with a low around 31°. Southwest wind 5 to 9 mph.

Area Forecast Discussion

995  
FXUS61 KLWX 101530
AFDLWX

Area Forecast Discussion
National Weather Service Baltimore MD/Washington DC
1030 AM EST Sun Dec 10 2017

.SYNOPSIS...
A gyre of upper level low pressure over Hudson Bay Canada will
send multiple clipper-like systems through the area over the
next several days.

Climatological Reports