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Point Forecast: Fairfax VA  38.85N 77.29W (Elev. 400 ft)	Last Update: 4:28 am EDT May 22, 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: 4am Tue, May 22 20185am Tue, May 22 20186am Tue, May 22 20187am Tue, May 22 20188am Tue, May 22 20189am Tue, May 22 201810am Tue, May 22 201811am Tue, May 22 201812pm Tue, May 22 20181pm Tue, May 22 20182pm Tue, May 22 20183pm Tue, May 22 20184pm Tue, May 22 20185pm Tue, May 22 20186pm Tue, May 22 20187pm Tue, May 22 20188pm Tue, May 22 20189pm Tue, May 22 201810pm Tue, May 22 201811pm Tue, May 22 201812am Wed, May 23 20181am Wed, May 23 20182am Wed, May 23 20183am Wed, May 23 20184am Wed, May 23 20185am Wed, May 23 20186am Wed, May 23 20187am Wed, May 23 20188am Wed, May 23 20189am Wed, May 23 201810am Wed, May 23 201811am Wed, May 23 201812pm Wed, May 23 20181pm Wed, May 23 20182pm Wed, May 23 20183pm Wed, May 23 20184pm Wed, May 23 20185pm Wed, May 23 20186pm Wed, May 23 20187pm Wed, May 23 20188pm Wed, May 23 20189pm Wed, May 23 201810pm Wed, May 23 201811pm Wed, May 23 201812am Thu, May 24 20181am Thu, May 24 20182am Thu, May 24 20183am Thu, May 24 20184am Thu, May 24 20185am Thu, May 24 20186am Thu, May 24 20187am Thu, May 24 20188am Thu, May 24 20189am Thu, May 24 201810am Thu, May 24 201811am Thu, May 24 201812pm Thu, May 24 20181pm Thu, May 24 20182pm Thu, May 24 20183pm Thu, May 24 20184pm Thu, May 24 20185pm Thu, May 24 20186pm Thu, May 24 20187pm Thu, May 24 20188pm Thu, May 24 20189pm Thu, May 24 201810pm Thu, May 24 201811pm Thu, May 24 201812am Fri, May 25 20181am Fri, May 25 20182am Fri, May 25 20183am Fri, May 25 20184am Fri, May 25 20185am Fri, May 25 20186am Fri, May 25 20187am Fri, May 25 20188am Fri, May 25 20189am Fri, May 25 201810am Fri, May 25 201811am Fri, May 25 201812pm Fri, May 25 20181pm Fri, May 25 20182pm Fri, May 25 20183pm Fri, May 25 20184pm Fri, May 25 20185pm Fri, May 25 20186pm Fri, May 25 20187pm Fri, May 25 20188pm Fri, May 25 20189pm Fri, May 25 201810pm Fri, May 25 201811pm Fri, May 25 201812am Sat, May 26 20181am Sat, May 26 20182am Sat, May 26 20183am Sat, May 26 20184am Sat, May 26 20185am Sat, May 26 20186am Sat, May 26 20187am Sat, May 26 20188am Sat, May 26 20189am Sat, May 26 201810am Sat, May 26 201811am Sat, May 26 201812pm Sat, May 26 20181pm Sat, May 26 20182pm Sat, May 26 20183pm Sat, May 26 2018

Date	05/22																				05/23
Hour (EDT)	04	05	06	07	08	09	10	11	12	13	14	15	16	17	18	19	20	21	22	23	00	01	02	03
Temperature (°F)	65	65	65	66	68	70	72	74	76	77	78	78	78	78	77	76	74	73	72	71	70	70	69	68
Dewpoint (°F)	60	60	60	61	61	62	64	65	66	67	68	69	69	69	69	69	68	67	67	66	66	65	65	65
Heat Index (°F)									76	77	78	78	78	78	77	76
Surface Wind (mph)	3	3	3	5	6	6	7	7	7	7	7	7	7	7	7	6	6	6	7	7	7	6	6	6
Wind Dir	SE	SE	SE	S	S	S	S	S	S	S	S	S	SW	SW	SW	SW	S	SW	SW	SW	SW	SW	SW	SW
Gust
Sky Cover (%)	88	92	93	94	95	94	92	91	85	74	69	75	88	95	92	87	84	81	74	70	69	68	67	66
Precipitation Potential (%)	22	51	51	51	58	58	58	19	19	19	58	58	58	69	69	69	41	41	41	41	41	41	19	19
Relative Humidity (%)	84	84	84	84	78	76	76	74	71	71	71	74	74	74	76	79	82	81	84	84	87	84	87	90
Rain	SChc	Chc	Chc	Chc	Lkly	Lkly	Lkly	SChc	SChc	SChc	Lkly	Lkly	Lkly	Lkly	Lkly	Lkly	Chc	Chc	Chc	Chc	Chc	Chc	SChc	SChc
Thunder	--	SChc	SChc	SChc	--	--	--	SChc	SChc	SChc	Lkly	Lkly	Lkly	Lkly	Lkly	Lkly	Chc	Chc	Chc	Chc	Chc	Chc	SChc	SChc
Date																					05/24
Hour (EDT)	04	05	06	07	08	09	10	11	12	13	14	15	16	17	18	19	20	21	22	23	00	01	02	03
Temperature (°F)	68	68	68	69	71	73	75	77	79	80	81	81	81	80	79	77	75	72	70	69	68	67	66	65
Dewpoint (°F)	64	64	64	65	65	65	65	65	65	64	64	63	63	62	62	62	62	61	60	59	59	58	58	57
Heat Index (°F)							75	77	79	82	83	82	82	81	79	77	75
Surface Wind (mph)	6	6	6	6	6	7	9	10	10	9	9	9	10	10	9	7	6	5	5	5	5	3	3	5
Wind Dir	W	W	W	W	W	NW	NW	NW	NW	NW	NW	NW	NW	N	N	N	N	N	N	N	N	NW	NW	NW
Gust
Sky Cover (%)	64	63	63	62	61	58	53	50	49	48	47	47	46	45	43	38	36	30	18	12	12	13	13	11
Precipitation Potential (%)	19	19	19	19	13	13	13	13	13	13	13	13	13	13	8	8	8	8	8	8	8	8	8	8
Relative Humidity (%)	87	87	87	87	81	76	71	67	62	58	56	54	54	54	56	60	64	68	71	70	73	73	75	75
Rain	SChc	SChc	SChc	SChc	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Thunder	SChc	SChc	SChc	SChc	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--

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