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Point Forecast: 2 Miles S Washington-Dulles International Airport VA  38.93N 77.45W (Elev. 299 ft)	Last Update: 10:32 am EDT Jun 5, 2020

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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) Atmospheric Dispersion Index Low Visibility Occurrence Risk Index

48-Hour Period Starting: 1pm Fri, Jun 5 20202pm Fri, Jun 5 20203pm Fri, Jun 5 20204pm Fri, Jun 5 20205pm Fri, Jun 5 20206pm Fri, Jun 5 20207pm Fri, Jun 5 20208pm Fri, Jun 5 20209pm Fri, Jun 5 202010pm Fri, Jun 5 202011pm Fri, Jun 5 202012am Sat, Jun 6 20201am Sat, Jun 6 20202am Sat, Jun 6 20203am Sat, Jun 6 20204am Sat, Jun 6 20205am Sat, Jun 6 20206am Sat, Jun 6 20207am Sat, Jun 6 20208am Sat, Jun 6 20209am Sat, Jun 6 202010am Sat, Jun 6 202011am Sat, Jun 6 202012pm Sat, Jun 6 20201pm Sat, Jun 6 20202pm Sat, Jun 6 20203pm Sat, Jun 6 20204pm Sat, Jun 6 20205pm Sat, Jun 6 20206pm Sat, Jun 6 20207pm Sat, Jun 6 20208pm Sat, Jun 6 20209pm Sat, Jun 6 202010pm Sat, Jun 6 202011pm Sat, Jun 6 202012am Sun, Jun 7 20201am Sun, Jun 7 20202am Sun, Jun 7 20203am Sun, Jun 7 20204am Sun, Jun 7 20205am Sun, Jun 7 20206am Sun, Jun 7 20207am Sun, Jun 7 20208am Sun, Jun 7 20209am Sun, Jun 7 202010am Sun, Jun 7 202011am Sun, Jun 7 202012pm Sun, Jun 7 20201pm Sun, Jun 7 20202pm Sun, Jun 7 20203pm Sun, Jun 7 20204pm Sun, Jun 7 20205pm Sun, Jun 7 20206pm Sun, Jun 7 20207pm Sun, Jun 7 20208pm Sun, Jun 7 20209pm Sun, Jun 7 202010pm Sun, Jun 7 202011pm Sun, Jun 7 202012am Mon, Jun 8 20201am Mon, Jun 8 20202am Mon, Jun 8 20203am Mon, Jun 8 20204am Mon, Jun 8 20205am Mon, Jun 8 20206am Mon, Jun 8 20207am Mon, Jun 8 20208am Mon, Jun 8 20209am Mon, Jun 8 202010am Mon, Jun 8 202011am Mon, Jun 8 202012pm Mon, Jun 8 20201pm Mon, Jun 8 20202pm Mon, Jun 8 20203pm Mon, Jun 8 20204pm Mon, Jun 8 20205pm Mon, Jun 8 20206pm Mon, Jun 8 20207pm Mon, Jun 8 20208pm Mon, Jun 8 20209pm Mon, Jun 8 202010pm Mon, Jun 8 202011pm Mon, Jun 8 202012am Tue, Jun 9 20201am Tue, Jun 9 20202am Tue, Jun 9 20203am Tue, Jun 9 20204am Tue, Jun 9 20205am Tue, Jun 9 20206am Tue, Jun 9 20207am Tue, Jun 9 20208am Tue, Jun 9 20209am Tue, Jun 9 202010am Tue, Jun 9 202011am Tue, Jun 9 202012pm Tue, Jun 9 20201pm Tue, Jun 9 20202pm Tue, Jun 9 20203pm Tue, Jun 9 20204pm Tue, Jun 9 20205pm Tue, Jun 9 20206pm Tue, Jun 9 20207pm Tue, Jun 9 20208pm Tue, Jun 9 20209pm Tue, Jun 9 202010pm Tue, Jun 9 202011pm Tue, Jun 9 202012am Wed, Jun 10 2020

Date	06/05											06/06
Hour (EDT)	13	14	15	16	17	18	19	20	21	22	23	00	01	02	03	04	05	06	07	08	09	10	11	12
Temperature (°F)	87	87	86	83	82	81	80	76	74	72	72	71	70	70	69	68	68	68	69	72	76	80	83	85
Dewpoint (°F)	67	67	67	68	69	69	69	69	70	70	70	69	68	68	68	68	67	68	68	69	70	70	70	69
Heat Index (°F)	90	90	89	86	85	84	83	76													76	83	87	89
Surface Wind (mph)	8	8	8	8	8	8	7	6	5	3	3	3	3	3	3	5	5	5	5	5	6	8	9	10
Wind Dir	S	S	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	W	W	W	W	W	W	NW	NW	NW
Gust
Sky Cover (%)	82	86	90	93	94	94	93	93	91	86	83	80	75	72	70	65	63	58	47	41	39	35	33	36
Precipitation Potential (%)	11	21	21	21	70	70	70	42	42	42	30	30	30	7	7	7	7	7	7	7	7	7	9	9
Relative Humidity (%)	52	52	53	61	65	67	69	79	87	93	93	93	93	93	97	100	97	100	97	90	82	72	65	59
Rain	--	SChc	SChc	SChc	Lkly	Lkly	Lkly	Chc	Chc	Chc	Chc	Chc	Chc	--	--	--	--	--	--	--	--	--	--	--
Thunder	--	SChc	SChc	SChc	Lkly	Lkly	Lkly	Chc	Chc	Chc	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Date												06/07
Hour (EDT)	13	14	15	16	17	18	19	20	21	22	23	00	01	02	03	04	05	06	07	08	09	10	11	12
Temperature (°F)	86	87	87	88	87	85	83	81	78	75	72	70	68	66	64	63	63	63	64	66	68	71	73	75
Dewpoint (°F)	67	66	65	63	61	60	60	60	59	59	58	57	56	55	54	54	54	55	55	56	56	56	55	54
Heat Index (°F)	89	89	89	89	87	85	83	82	78	75														75
Surface Wind (mph)	11	11	13	13	13	11	10	9	9	9	9	8	7	6	6	6	6	6	6	7	8	9	10	10
Wind Dir	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	N	N	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW
Gust				18	18
Sky Cover (%)	43	46	43	38	35	33	30	28	26	21	19	19	20	20	20	20	20	17	10	7	9	14	16	16
Precipitation Potential (%)	9	19	19	19	18	18	18	17	17	17	17	17	17	12	12	12	12	12	12	7	7	7	7	7
Relative Humidity (%)	53	50	48	43	42	43	46	49	52	58	61	63	65	68	70	72	72	75	73	70	65	59	53	48
Rain	--	SChc	SChc	SChc	SChc	SChc	SChc	SChc	SChc	SChc	SChc	--	--	--	--	--	--	--	--	--	--	--	--	--
Thunder	--	SChc	SChc	SChc	SChc	SChc	SChc	SChc	SChc	SChc	SChc	--	--	--	--	--	--	--	--	--	--	--	--	--

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