Thursday, July 18, 2019

7-Day Forecast

Excessive Heat Watch

Today: A slight chance of showers, then showers likely and possibly a thunderstorm after noon. Some of the storms could produce heavy rain. Mostly cloudy, with a high near 94°. Heat index values as high as 101. Southwest wind 5 to 7 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Tonight: Scattered showers and thunderstorms, mainly before 9pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 77°. Southwest wind around 6 mph becoming calm after midnight. Chance of precipitation is 50%.

Area Forecast Discussion

000  
FXUS61 KLWX 180800
AFDLWX

Area Forecast Discussion
National Weather Service Baltimore MD/Washington DC
400 AM EDT Thu Jul 18 2019

.SYNOPSIS...
The remnant circulation of Barry and its trailing surface trough
will depart into the western Atlantic through tonight. High
pressure will build over the southeastern United States Friday
through the weekend. A cold front approaching from the Great
Lakes and Pennsylvania will cross the region early next week.

Space Weather Forecast Discussion

:Product: Forecast Discussion
:Issued: 2019 Jul 18 0030 UTC
# Prepared by the DOC, NOAA, Space Weather Prediction Center
#
Solar Activity

.24 hr Summary...
Solar activity remained very low with no sunspots present on the visible
disk. No Earth-directed CMEs were observed in available coronagraph
imagery.

.Forecast...
The lack of sunspots and active regions leads to an expectation of very
low solar activity to continue 18-20 Jul.

Climate Report

000  
CDUS41 KLWX 180530
CLIDCA


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
129 AM EDT THU JUL 18 2019


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

...THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR JULY 17 2019...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1871 TO 2019


WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
..................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 95 351 PM 102 1980 89 6 92
MINIMUM 74 451 PM 56 1929 71 3 74
1903
AVERAGE 85 80 5 83

PRECIPITATION (IN)
YESTERDAY 0.29 2.79 2018 0.12 0.17 2.79
MONTH TO DATE 5.99 2.10 3.89 2.79
SINCE JUN 1 10.26 5.88 4.38 8.00
SINCE JAN 1 28.29 21.84 6.45 27.97

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