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Point Forecast: Langley Air Force Base VA  37.07N 76.37W (Elev. 3 ft)	Last Update: 9:57 am EST Jan 23, 2021

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Weather Elements Fire Weather Aviation Weather Temperature (°F) Dewpoint (°F) Wind Chill (°F) Surface Wind  ktmphkm/hm/s Sky Cover (%) Precipitation Potential (%) Relative Humidity (%) Rain Thunder Snow Freezing Rain Sleet Fog Mixing Height  x100ftx100m Haines Index Lightning Activity Level Trans. Wind  ktmphkm/hm/s 20ft Wind  ktmphkm/hm/s Vent Rate (x1000 mph-ft) Pressure (in) Atmospheric Dispersion Index Low Visibility Occurrence Risk Index Turner Stability Index Ceiling Height Visibility

48-Hour Period Starting: 11am Sat, Jan 23 202112pm Sat, Jan 23 20211pm Sat, Jan 23 20212pm Sat, Jan 23 20213pm Sat, Jan 23 20214pm Sat, Jan 23 20215pm Sat, Jan 23 20216pm Sat, Jan 23 20217pm Sat, Jan 23 20218pm Sat, Jan 23 20219pm Sat, Jan 23 202110pm Sat, Jan 23 202111pm Sat, Jan 23 202112am Sun, Jan 24 20211am Sun, Jan 24 20212am Sun, Jan 24 20213am Sun, Jan 24 20214am Sun, Jan 24 20215am Sun, Jan 24 20216am Sun, Jan 24 20217am Sun, Jan 24 20218am Sun, Jan 24 20219am Sun, Jan 24 202110am Sun, Jan 24 202111am Sun, Jan 24 202112pm Sun, Jan 24 20211pm Sun, Jan 24 20212pm Sun, Jan 24 20213pm Sun, Jan 24 20214pm Sun, Jan 24 20215pm Sun, Jan 24 20216pm Sun, Jan 24 20217pm Sun, Jan 24 20218pm Sun, Jan 24 20219pm Sun, Jan 24 202110pm Sun, Jan 24 202111pm Sun, Jan 24 202112am Mon, Jan 25 20211am Mon, Jan 25 20212am Mon, Jan 25 20213am Mon, Jan 25 20214am Mon, Jan 25 20215am Mon, Jan 25 20216am Mon, Jan 25 20217am Mon, Jan 25 20218am Mon, Jan 25 20219am Mon, Jan 25 202110am Mon, Jan 25 202111am Mon, Jan 25 202112pm Mon, Jan 25 20211pm Mon, Jan 25 20212pm Mon, Jan 25 20213pm Mon, Jan 25 20214pm Mon, Jan 25 20215pm Mon, Jan 25 20216pm Mon, Jan 25 20217pm Mon, Jan 25 20218pm Mon, Jan 25 20219pm Mon, Jan 25 202110pm Mon, Jan 25 202111pm Mon, Jan 25 202112am Tue, Jan 26 20211am Tue, Jan 26 20212am Tue, Jan 26 20213am Tue, Jan 26 20214am Tue, Jan 26 20215am Tue, Jan 26 20216am Tue, Jan 26 20217am Tue, Jan 26 20218am Tue, Jan 26 20219am Tue, Jan 26 202110am Tue, Jan 26 202111am Tue, Jan 26 202112pm Tue, Jan 26 20211pm Tue, Jan 26 20212pm Tue, Jan 26 20213pm Tue, Jan 26 20214pm Tue, Jan 26 20215pm Tue, Jan 26 20216pm Tue, Jan 26 20217pm Tue, Jan 26 20218pm Tue, Jan 26 20219pm Tue, Jan 26 202110pm Tue, Jan 26 202111pm Tue, Jan 26 202112am Wed, Jan 27 20211am Wed, Jan 27 20212am Wed, Jan 27 20213am Wed, Jan 27 20214am Wed, Jan 27 20215am Wed, Jan 27 20216am Wed, Jan 27 20217am Wed, Jan 27 20218am Wed, Jan 27 20219am Wed, Jan 27 202110am Wed, Jan 27 202111am Wed, Jan 27 202112pm Wed, Jan 27 20211pm Wed, Jan 27 20212pm Wed, Jan 27 20213pm Wed, Jan 27 20214pm Wed, Jan 27 20215pm Wed, Jan 27 20216pm Wed, Jan 27 20217pm Wed, Jan 27 20218pm Wed, Jan 27 20219pm Wed, Jan 27 202110pm Wed, Jan 27 2021

Date	01/23													01/24
Hour (EST)	11	12	13	14	15	16	17	18	19	20	21	22	23	00	01	02	03	04	05	06	07	08	09	10
Temperature (°F)	38	39	40	40	40	40	38	36	33	32	31	31	30	29	28	28	28	27	27	26	26	29	34	38
Dewpoint (°F)	16	14	13	12	11	10	11	12	13	12	13	14	14	14	14	14	15	15	15	15	16	16	16	17
Wind Chill (°F)	30	32	32	33	33	32	31	28	25	24	22	22	21	20	19	19	19	19	19	18	18	21	28	33
Surface Wind (mph)	17	17	17	16	16	15	13	11	9	10	10	10	10	10	10	9	9	8	8	8	8	8	7	7
Wind Dir	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	N	N	N	N	N	N	N	N	N	N	N	N	N	N
Gust	26	26	26	24	24	23
Sky Cover (%)	10	4	2	2	2	2	2	2	2	2	2	2	6	10	14	14	14	14	14	14	14	15	15	15
Precipitation Potential (%)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
Relative Humidity (%)	37	33	31	29	27	27	30	33	39	43	47	49	51	53	55	55	58	60	60	62	65	58	47	42
Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Snow	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Freezing Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Sleet	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Date														01/25
Hour (EST)	11	12	13	14	15	16	17	18	19	20	21	22	23	00	01	02	03	04	05	06	07	08	09	10
Temperature (°F)	39	41	41	42	43	42	41	39	36	37	37	38	38	38	38	38	38	38	38	38	38	39	40	41
Dewpoint (°F)	17	17	17	17	17	17	19	20	22	23	23	24	25	25	26	27	28	29	30	31	32	33	34	36
Wind Chill (°F)	35	36	36	37	39	38	37	39	36	37	37	38	38	36	36	36	36	36	36	38	38	39	37	38
Surface Wind (mph)	6	6	6	6	5	5	3	2	1	1	2	2	2	3	3	3	3	3	3	2	2	2	3	3
Wind Dir	NW	NW	NW	NW	W	SW	SW	SW	S	S	S	S	S	SW	SW	SW	SW	SW	SW	S	S	S	S	SE
Gust
Sky Cover (%)	17	20	22	30	34	39	49	58	68	70	73	75	74	73	71	72	72	73	77	81	85	87	89	91
Precipitation Potential (%)	0	0	0	0	0	0	0	0	7	7	7	7	7	7	24	24	24	24	24	24	58	58	58	58
Relative Humidity (%)	40	37	37	36	35	36	41	46	56	56	56	57	59	59	62	64	67	70	73	76	79	79	79	82
Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	SChc	SChc	SChc	SChc	SChc	SChc	Lkly	Lkly	Lkly	Lkly
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Snow	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Freezing Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Sleet	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--

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