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Point Forecast: 2 Miles WSW Great Falls VA  39.01N 77.32W (Elev. 348 ft)	Last Update: 7:33 pm EDT Aug 13, 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: 8pm Thu, Aug 13 20209pm Thu, Aug 13 202010pm Thu, Aug 13 202011pm Thu, Aug 13 202012am Fri, Aug 14 20201am Fri, Aug 14 20202am Fri, Aug 14 20203am Fri, Aug 14 20204am Fri, Aug 14 20205am Fri, Aug 14 20206am Fri, Aug 14 20207am Fri, Aug 14 20208am Fri, Aug 14 20209am Fri, Aug 14 202010am Fri, Aug 14 202011am Fri, Aug 14 202012pm Fri, Aug 14 20201pm Fri, Aug 14 20202pm Fri, Aug 14 20203pm Fri, Aug 14 20204pm Fri, Aug 14 20205pm Fri, Aug 14 20206pm Fri, Aug 14 20207pm Fri, Aug 14 20208pm Fri, Aug 14 20209pm Fri, Aug 14 202010pm Fri, Aug 14 202011pm Fri, Aug 14 202012am Sat, Aug 15 20201am Sat, Aug 15 20202am Sat, Aug 15 20203am Sat, Aug 15 20204am Sat, Aug 15 20205am Sat, Aug 15 20206am Sat, Aug 15 20207am Sat, Aug 15 20208am Sat, Aug 15 20209am Sat, Aug 15 202010am Sat, Aug 15 202011am Sat, Aug 15 202012pm Sat, Aug 15 20201pm Sat, Aug 15 20202pm Sat, Aug 15 20203pm Sat, Aug 15 20204pm Sat, Aug 15 20205pm Sat, Aug 15 20206pm Sat, Aug 15 20207pm Sat, Aug 15 20208pm Sat, Aug 15 20209pm Sat, Aug 15 202010pm Sat, Aug 15 202011pm Sat, Aug 15 202012am Sun, Aug 16 20201am Sun, Aug 16 20202am Sun, Aug 16 20203am Sun, Aug 16 20204am Sun, Aug 16 20205am Sun, Aug 16 20206am Sun, Aug 16 20207am Sun, Aug 16 20208am Sun, Aug 16 20209am Sun, Aug 16 202010am Sun, Aug 16 202011am Sun, Aug 16 202012pm Sun, Aug 16 20201pm Sun, Aug 16 20202pm Sun, Aug 16 20203pm Sun, Aug 16 20204pm Sun, Aug 16 20205pm Sun, Aug 16 20206pm Sun, Aug 16 20207pm Sun, Aug 16 20208pm Sun, Aug 16 20209pm Sun, Aug 16 202010pm Sun, Aug 16 202011pm Sun, Aug 16 202012am Mon, Aug 17 20201am Mon, Aug 17 20202am Mon, Aug 17 20203am Mon, Aug 17 20204am Mon, Aug 17 20205am Mon, Aug 17 20206am Mon, Aug 17 20207am Mon, Aug 17 20208am Mon, Aug 17 20209am Mon, Aug 17 202010am Mon, Aug 17 202011am Mon, Aug 17 202012pm Mon, Aug 17 20201pm Mon, Aug 17 20202pm Mon, Aug 17 20203pm Mon, Aug 17 20204pm Mon, Aug 17 20205pm Mon, Aug 17 20206pm Mon, Aug 17 20207pm Mon, Aug 17 20208pm Mon, Aug 17 20209pm Mon, Aug 17 202010pm Mon, Aug 17 202011pm Mon, Aug 17 202012am Tue, Aug 18 20201am Tue, Aug 18 20202am Tue, Aug 18 20203am Tue, Aug 18 20204am Tue, Aug 18 20205am Tue, Aug 18 20206am Tue, Aug 18 20207am Tue, Aug 18 2020

Date	08/13				08/14
Hour (EDT)	20	21	22	23	00	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15	16	17	18	19
Temperature (°F)	78	76	75	75	74	74	74	73	73	72	72	71	72	74	76	78	80	81	83	82	82	81	80	79
Dewpoint (°F)	72	73	73	72	72	72	72	72	72	72	71	71	72	72	72	72	73	73	73	73	72	72	72	72
Heat Index (°F)	78	76	75	75											76	78	84	86	89	87	87	85	84	79
Surface Wind (mph)	5	5	5	5	5	5	5	5	6	6	6	6	6	6	6	7	7	7	8	8	8	8	7	7
Wind Dir	E	NE	NE	NE	NE	NE	NE	NE	NE	N	N	N	N	NE	NE	NE	NE	NE	NE	NE	NE	NE	NE	E
Gust
Sky Cover (%)	50	49	55	62	69	77	87	91	91	92	91	94	93	95	94	88	85	86	87	87	86	86	85	82
Precipitation Potential (%)	43	43	43	43	43	43	39	39	39	39	39	39	37	37	37	37	37	37	49	49	49	49	49	49
Relative Humidity (%)	82	90	94	90	93	93	93	97	97	100	97	100	100	93	87	82	79	77	72	74	72	74	77	79
Rain	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc
Thunder	SChc	SChc	SChc	SChc	SChc	SChc	SChc	SChc	SChc	SChc	SChc	SChc	SChc	SChc	SChc	SChc	SChc	SChc	Chc	Chc	Chc	Chc	Chc	Chc
Date					08/15
Hour (EDT)	20	21	22	23	00	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15	16	17	18	19
Temperature (°F)	77	75	74	74	73	72	72	71	71	70	70	69	70	71	73	75	76	77	78	78	78	77	76	75
Dewpoint (°F)	71	71	71	71	71	70	69	68	67	67	67	67	67	67	68	68	68	68	68	68	68	68	68	68
Heat Index (°F)	77	75														75	76	77	78	78	78	77	76	75
Surface Wind (mph)	6	6	6	6	6	5	5	5	6	6	6	6	6	7	7	8	8	8	8	8	8	8	8	8
Wind Dir	E	E	NE	NE	NE	NE	NE	NE	NE	NE	NE	NE	NE	NE	NE	E	E	E	E	E	E	E	E	E
Gust
Sky Cover (%)	81	79	76	74	73	72	71	74	79	81	82	84	85	86	87	87	87	86	86	88	91	93	92	90
Precipitation Potential (%)	39	39	39	39	39	39	33	33	33	33	33	33	37	37	37	37	37	37	61	61	61	61	61	61
Relative Humidity (%)	82	87	90	90	93	93	90	90	87	90	90	93	90	87	84	79	76	74	71	71	71	74	76	79
Rain	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Lkly	Lkly	Lkly	Lkly	Lkly	Lkly
Thunder	SChc	SChc	SChc	SChc	SChc	SChc	SChc	SChc	SChc	SChc	SChc	SChc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc

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