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Point Forecast: Langley Air Force Base VA  37.07N 76.37W (Elev. 3 ft)	Last Update: 5:20 pm EST Feb 18, 2020

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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: 6pm Tue, Feb 18 20207pm Tue, Feb 18 20208pm Tue, Feb 18 20209pm Tue, Feb 18 202010pm Tue, Feb 18 202011pm Tue, Feb 18 202012am Wed, Feb 19 20201am Wed, Feb 19 20202am Wed, Feb 19 20203am Wed, Feb 19 20204am Wed, Feb 19 20205am Wed, Feb 19 20206am Wed, Feb 19 20207am Wed, Feb 19 20208am Wed, Feb 19 20209am Wed, Feb 19 202010am Wed, Feb 19 202011am Wed, Feb 19 202012pm Wed, Feb 19 20201pm Wed, Feb 19 20202pm Wed, Feb 19 20203pm Wed, Feb 19 20204pm Wed, Feb 19 20205pm Wed, Feb 19 20206pm Wed, Feb 19 20207pm Wed, Feb 19 20208pm Wed, Feb 19 20209pm Wed, Feb 19 202010pm Wed, Feb 19 202011pm Wed, Feb 19 202012am Thu, Feb 20 20201am Thu, Feb 20 20202am Thu, Feb 20 20203am Thu, Feb 20 20204am Thu, Feb 20 20205am Thu, Feb 20 20206am Thu, Feb 20 20207am Thu, Feb 20 20208am Thu, Feb 20 20209am Thu, Feb 20 202010am Thu, Feb 20 202011am Thu, Feb 20 202012pm Thu, Feb 20 20201pm Thu, Feb 20 20202pm Thu, Feb 20 20203pm Thu, Feb 20 20204pm Thu, Feb 20 20205pm Thu, Feb 20 20206pm Thu, Feb 20 20207pm Thu, Feb 20 20208pm Thu, Feb 20 20209pm Thu, Feb 20 202010pm Thu, Feb 20 202011pm Thu, Feb 20 202012am Fri, Feb 21 20201am Fri, Feb 21 20202am Fri, Feb 21 20203am Fri, Feb 21 20204am Fri, Feb 21 20205am Fri, Feb 21 20206am Fri, Feb 21 20207am Fri, Feb 21 20208am Fri, Feb 21 20209am Fri, Feb 21 202010am Fri, Feb 21 202011am Fri, Feb 21 202012pm Fri, Feb 21 20201pm Fri, Feb 21 20202pm Fri, Feb 21 20203pm Fri, Feb 21 20204pm Fri, Feb 21 20205pm Fri, Feb 21 20206pm Fri, Feb 21 20207pm Fri, Feb 21 20208pm Fri, Feb 21 20209pm Fri, Feb 21 202010pm Fri, Feb 21 202011pm Fri, Feb 21 202012am Sat, Feb 22 20201am Sat, Feb 22 20202am Sat, Feb 22 20203am Sat, Feb 22 20204am Sat, Feb 22 20205am Sat, Feb 22 20206am Sat, Feb 22 20207am Sat, Feb 22 20208am Sat, Feb 22 20209am Sat, Feb 22 202010am Sat, Feb 22 202011am Sat, Feb 22 202012pm Sat, Feb 22 20201pm Sat, Feb 22 20202pm Sat, Feb 22 20203pm Sat, Feb 22 20204pm Sat, Feb 22 20205pm Sat, Feb 22 20206pm Sat, Feb 22 20207pm Sat, Feb 22 20208pm Sat, Feb 22 20209pm Sat, Feb 22 202010pm Sat, Feb 22 202011pm Sat, Feb 22 202012am Sun, Feb 23 20201am Sun, Feb 23 20202am Sun, Feb 23 20203am Sun, Feb 23 20204am Sun, Feb 23 20205am Sun, Feb 23 2020

Date	02/18						02/19
Hour (EST)	18	19	20	21	22	23	00	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15	16	17
Temperature (°F)	57	56	56	56	56	56	56	56	55	54	51	48	47	44	44	45	46	46	47	47	48	48	48	46
Dewpoint (°F)	51	51	53	52	52	53	53	53	53	51	47	43	42	39	39	38	36	36	35	33	33	32	32	32
Wind Chill (°F)												42	41	38	38	39	40	40	41	41	43	43	43	42
Surface Wind (mph)	7	7	7	8	8	8	8	8	10	14	16	15	15	14	14	14	14	14	13	13	11	10	9	8
Wind Dir	S	S	S	SW	SW	SW	SW	SW	W	NW	N	N	N	N	N	N	N	N	N	N	N	N	N	N
Gust										22	25	23	23	22	22	22	22	22
Sky Cover (%)	98	84	79	70	81	100	100	100	100	100	100	100	100	98	95	93	90	86	82	78	67	56	45	36
Precipitation Potential (%)	35	48	51	54	57	65	74	82	84	86	88	69	50	31	27	23	19	15	11	7	6	5	3	2
Relative Humidity (%)	80	83	90	86	86	90	90	90	93	90	86	83	83	82	82	76	68	68	63	58	56	54	54	58
Rain	Chc	Chc	Chc	Chc	Lkly	Lkly	Lkly	Ocnl	Ocnl	Ocnl	Ocnl	Lkly	Chc	Chc	Chc	SChc	SChc	SChc	--	--	--	--	--	--
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Snow	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Freezing Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Sleet	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Date							02/20
Hour (EST)	18	19	20	21	22	23	00	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15	16	17
Temperature (°F)	45	44	43	43	42	42	41	41	40	40	39	38	38	37	38	39	40	40	41	41	40	39	39	38
Dewpoint (°F)	32	33	33	33	31	30	30	29	29	29	29	29	28	28	28	27	27	27	26	25	25	25	26	27
Wind Chill (°F)	41	40	39	39	37	37	36	36	34	34	31	30	30	29	30	31	33	34	35	35	34	31	31	30
Surface Wind (mph)	7	6	7	7	8	9	9	10	11	11	13	13	13	13	13	14	14	13	13	11	13	13	14	14
Wind Dir	N	N	N	N	N	N	N	N	N	N	N	NE	NE	NE	NE	NE	NE	NE	NE	NE	NE	NE	NE	NE
Gust																22	22						22	22
Sky Cover (%)	26	17	18	18	19	24	29	35	40	46	51	59	67	75	76	77	79	82	85	88	89	90	90	92
Precipitation Potential (%)	1	0	0	0	0	0	0	0	0	0	0	0	0	10	10	10	10	10	10	19	19	19	19	19
Relative Humidity (%)	60	65	67	67	65	62	65	62	64	64	67	70	67	70	67	62	59	59	55	52	55	57	59	64
Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	SChc	SChc	SChc	SChc	SChc
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Snow	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Freezing Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Sleet	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--

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