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Point Forecast: Fairfax VA  38.85N 77.29W (Elev. 400 ft)	Last Update: 10:30 pm EDT Aug 16, 2018

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Weather Elements Weather/Precipitation Fire Weather Temperature (°F) Dewpoint (°F) Heat Index (°F) Surface Wind  ktmphkm/hm/s Sky Cover (%) Precipitation Potential (%) Relative Humidity (%) Rain Thunder Fog Mixing Height  x100ftx100m Haines Index Lightning Activity Level Trans. Wind  ktmphkm/hm/s Vent Rate (x1000 mph-ft)

48-Hour Period Starting: 1am Fri, Aug 17 20182am Fri, Aug 17 20183am Fri, Aug 17 20184am Fri, Aug 17 20185am Fri, Aug 17 20186am Fri, Aug 17 20187am Fri, Aug 17 20188am Fri, Aug 17 20189am Fri, Aug 17 201810am Fri, Aug 17 201811am Fri, Aug 17 201812pm Fri, Aug 17 20181pm Fri, Aug 17 20182pm Fri, Aug 17 20183pm Fri, Aug 17 20184pm Fri, Aug 17 20185pm Fri, Aug 17 20186pm Fri, Aug 17 20187pm Fri, Aug 17 20188pm Fri, Aug 17 20189pm Fri, Aug 17 201810pm Fri, Aug 17 201811pm Fri, Aug 17 201812am Sat, Aug 18 20181am Sat, Aug 18 20182am Sat, Aug 18 20183am Sat, Aug 18 20184am Sat, Aug 18 20185am Sat, Aug 18 20186am Sat, Aug 18 20187am Sat, Aug 18 20188am Sat, Aug 18 20189am Sat, Aug 18 201810am Sat, Aug 18 201811am Sat, Aug 18 201812pm Sat, Aug 18 20181pm Sat, Aug 18 20182pm Sat, Aug 18 20183pm Sat, Aug 18 20184pm Sat, Aug 18 20185pm Sat, Aug 18 20186pm Sat, Aug 18 20187pm Sat, Aug 18 20188pm Sat, Aug 18 20189pm Sat, Aug 18 201810pm Sat, Aug 18 201811pm Sat, Aug 18 201812am Sun, Aug 19 20181am Sun, Aug 19 20182am Sun, Aug 19 20183am Sun, Aug 19 20184am Sun, Aug 19 20185am Sun, Aug 19 20186am Sun, Aug 19 20187am Sun, Aug 19 20188am Sun, Aug 19 20189am Sun, Aug 19 201810am Sun, Aug 19 201811am Sun, Aug 19 201812pm Sun, Aug 19 20181pm Sun, Aug 19 20182pm Sun, Aug 19 20183pm Sun, Aug 19 20184pm Sun, Aug 19 20185pm Sun, Aug 19 20186pm Sun, Aug 19 20187pm Sun, Aug 19 20188pm Sun, Aug 19 20189pm Sun, Aug 19 201810pm Sun, Aug 19 201811pm Sun, Aug 19 201812am Mon, Aug 20 20181am Mon, Aug 20 20182am Mon, Aug 20 20183am Mon, Aug 20 20184am Mon, Aug 20 20185am Mon, Aug 20 20186am Mon, Aug 20 20187am Mon, Aug 20 20188am Mon, Aug 20 20189am Mon, Aug 20 201810am Mon, Aug 20 201811am Mon, Aug 20 201812pm Mon, Aug 20 20181pm Mon, Aug 20 20182pm Mon, Aug 20 20183pm Mon, Aug 20 20184pm Mon, Aug 20 20185pm Mon, Aug 20 20186pm Mon, Aug 20 20187pm Mon, Aug 20 20188pm Mon, Aug 20 20189pm Mon, Aug 20 201810pm Mon, Aug 20 201811pm Mon, Aug 20 201812am Tue, Aug 21 20181am Tue, Aug 21 20182am Tue, Aug 21 20183am Tue, Aug 21 20184am Tue, Aug 21 20185am Tue, Aug 21 20186am Tue, Aug 21 20187am Tue, Aug 21 20188am Tue, Aug 21 20189am Tue, Aug 21 201810am Tue, Aug 21 201811am Tue, Aug 21 201812pm Tue, Aug 21 2018

Date	08/17																							08/18
Hour (EDT)	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15	16	17	18	19	20	21	22	23	00
Temperature (°F)	75	73	73	72	72	73	74	76	78	81	84	87	89	91	91	90	88	86	84	81	79	78	77	76
Dewpoint (°F)	70	70	70	70	70	70	71	71	71	72	72	72	72	71	70	70	71	72	72	73	72	72	72	72
Heat Index (°F)	75							76	78	85	90	94	96	98	97	96	94	92	90	86	79	78	77	76
Surface Wind (mph)	3	3	3	3	2	3	3	5	5	6	7	8	8	9	10	10	10	9	8	7	6	6	6	5
Wind Dir	S	S	S	S	SW	SW	S	S	S	S	S	S	S	S	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW
Gust
Sky Cover (%)	66	67	64	59	47	48	50	51	51	51	51	56	66	71	75	84	88	87	85	84	81	76	73	72
Precipitation Potential (%)	7	6	6	6	6	9	9	9	9	9	9	20	20	20	48	48	48	62	62	62	46	46	46	42
Relative Humidity (%)	84	90	90	93	93	90	90	85	79	74	67	61	57	52	50	52	57	63	67	77	79	82	85	87
Rain	--	--	--	--	--	--	--	--	--	--	--	SChc	SChc	SChc	Chc	Chc	Chc	Lkly	Lkly	Lkly	Chc	Chc	Chc	Chc
Thunder	--	--	--	--	--	--	--	--	--	--	--	SChc	SChc	SChc	Chc	Chc	Chc	Chc	Chc	Chc	SChc	SChc	SChc	SChc
Date																								08/19
Hour (EDT)	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15	16	17	18	19	20	21	22	23	00
Temperature (°F)	76	75	75	74	73	73	73	74	76	78	80	82	84	85	86	86	85	83	81	78	76	75	74	73
Dewpoint (°F)	71	71	71	70	70	70	71	71	71	72	72	71	71	71	71	71	71	71	71	71	71	71	72	71
Heat Index (°F)	76	75	75						76	78	84	86	89	90	91	91	90	88	85	78	76	75
Surface Wind (mph)	5	3	3	3	3	3	3	5	5	6	7	7	7	7	8	8	8	7	6	5	3	3	3	2
Wind Dir	SW	SW	SW	SW	SW	SW	W	W	W	W	W	W	W	W	W	W	W	W	W	W	NW	NW	NW	N
Gust
Sky Cover (%)	70	69	70	73	74	74	74	74	76	80	82	80	77	75	77	82	84	82	79	77	80	84	87	83
Precipitation Potential (%)	42	42	42	42	42	12	12	12	12	12	12	44	44	44	44	44	44	40	40	40	40	40	40	20
Relative Humidity (%)	85	87	87	87	90	90	93	90	85	82	77	69	65	63	61	61	63	67	72	79	85	87	93	93
Rain	Chc	Chc	Chc	Chc	Chc	--	--	--	--	--	--	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	SChc
Thunder	SChc	SChc	SChc	SChc	SChc	--	--	--	--	--	--	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	--

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