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Point Forecast: Derwood MD  39.12N 77.13W (Elev. 348 ft)	Last Update: 4:31 am EDT Jul 16, 2019

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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: 8am Tue, Jul 16 20199am Tue, Jul 16 201910am Tue, Jul 16 201911am Tue, Jul 16 201912pm Tue, Jul 16 20191pm Tue, Jul 16 20192pm Tue, Jul 16 20193pm Tue, Jul 16 20194pm Tue, Jul 16 20195pm Tue, Jul 16 20196pm Tue, Jul 16 20197pm Tue, Jul 16 20198pm Tue, Jul 16 20199pm Tue, Jul 16 201910pm Tue, Jul 16 201911pm Tue, Jul 16 201912am Wed, Jul 17 20191am Wed, Jul 17 20192am Wed, Jul 17 20193am Wed, Jul 17 20194am Wed, Jul 17 20195am Wed, Jul 17 20196am Wed, Jul 17 20197am Wed, Jul 17 20198am Wed, Jul 17 20199am Wed, Jul 17 201910am Wed, Jul 17 201911am Wed, Jul 17 201912pm Wed, Jul 17 20191pm Wed, Jul 17 20192pm Wed, Jul 17 20193pm Wed, Jul 17 20194pm Wed, Jul 17 20195pm Wed, Jul 17 20196pm Wed, Jul 17 20197pm Wed, Jul 17 20198pm Wed, Jul 17 20199pm Wed, Jul 17 201910pm Wed, Jul 17 201911pm Wed, Jul 17 201912am Thu, Jul 18 20191am Thu, Jul 18 20192am Thu, Jul 18 20193am Thu, Jul 18 20194am Thu, Jul 18 20195am Thu, Jul 18 20196am Thu, Jul 18 20197am Thu, Jul 18 20198am Thu, Jul 18 20199am Thu, Jul 18 201910am Thu, Jul 18 201911am Thu, Jul 18 201912pm Thu, Jul 18 20191pm Thu, Jul 18 20192pm Thu, Jul 18 20193pm Thu, Jul 18 20194pm Thu, Jul 18 20195pm Thu, Jul 18 20196pm Thu, Jul 18 20197pm Thu, Jul 18 20198pm Thu, Jul 18 20199pm Thu, Jul 18 201910pm Thu, Jul 18 201911pm Thu, Jul 18 201912am Fri, Jul 19 20191am Fri, Jul 19 20192am Fri, Jul 19 20193am Fri, Jul 19 20194am Fri, Jul 19 20195am Fri, Jul 19 20196am Fri, Jul 19 20197am Fri, Jul 19 20198am Fri, Jul 19 20199am Fri, Jul 19 201910am Fri, Jul 19 201911am Fri, Jul 19 201912pm Fri, Jul 19 20191pm Fri, Jul 19 20192pm Fri, Jul 19 20193pm Fri, Jul 19 20194pm Fri, Jul 19 20195pm Fri, Jul 19 20196pm Fri, Jul 19 20197pm Fri, Jul 19 20198pm Fri, Jul 19 20199pm Fri, Jul 19 201910pm Fri, Jul 19 201911pm Fri, Jul 19 201912am Sat, Jul 20 20191am Sat, Jul 20 20192am Sat, Jul 20 20193am Sat, Jul 20 20194am Sat, Jul 20 20195am Sat, Jul 20 20196am Sat, Jul 20 20197am Sat, Jul 20 20198am Sat, Jul 20 20199am Sat, Jul 20 201910am Sat, Jul 20 201911am Sat, Jul 20 201912pm Sat, Jul 20 20191pm Sat, Jul 20 20192pm Sat, Jul 20 20193pm Sat, Jul 20 20194pm Sat, Jul 20 20195pm Sat, Jul 20 20196pm Sat, Jul 20 20197pm Sat, Jul 20 2019

Date	07/16																07/17
Hour (EDT)	08	09	10	11	12	13	14	15	16	17	18	19	20	21	22	23	00	01	02	03	04	05	06	07
Temperature (°F)	76	79	82	86	87	89	90	91	92	91	89	88	86	84	81	79	79	78	76	75	75	74	74	76
Dewpoint (°F)	70	70	70	70	69	69	68	69	69	70	71	71	72	72	73	73	73	73	73	73	73	73	73	73
Heat Index (°F)	76	79	86	91	91	94	94	96	97	97	95	94	92	90	86	79	79	78	76	75	75			76
Surface Wind (mph)	1	2	2	2	2	3	3	5	5	5	3	3	2	2	3	5	3	3	2	2	2	2	2	3
Wind Dir	S	SW	SW	SW	SW	SW	SW	SW	W	W	W	SW	SW	SW	S	S	S	S	SW	SW	SW	S	S	S
Gust
Sky Cover (%)	50	51	51	52	52	57	59	63	72	76	77	78	79	79	80	80	77	70	67	68	69	70	67	62
Precipitation Potential (%)	2	2	2	2	9	9	21	21	38	38	41	41	28	28	28	8	8	8	5	5	5	5	5	5
Relative Humidity (%)	82	74	67	59	55	52	49	49	47	50	56	57	63	67	77	82	82	85	90	94	94	97	97	90
Rain	--	--	--	--	--	--	SChc	SChc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	--	--	--	--	--	--	--	--	--
Thunder	--	--	--	--	--	--	SChc	SChc	Chc	Chc	Chc	Chc	SChc	SChc	SChc	--	--	--	--	--	--	--	--	--
Date																	07/18
Hour (EDT)	08	09	10	11	12	13	14	15	16	17	18	19	20	21	22	23	00	01	02	03	04	05	06	07
Temperature (°F)	79	83	86	89	91	93	95	95	95	94	93	90	88	85	83	81	80	79	78	76	76	75	75	76
Dewpoint (°F)	74	74	74	73	72	71	71	71	71	71	72	72	73	73	73	73	73	73	72	72	72	72	72	73
Heat Index (°F)	79	90	94	97	99	100	103	103	103	101	101	97	96	92	89	86	84	79	78	76	76	75	75	76
Surface Wind (mph)	3	5	5	6	6	7	7	7	7	9	9	8	6	6	6	6	5	3	2	2	3	5	5	3
Wind Dir	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	W	W	W	SW	SW	SW	SW	SW	SW	W
Gust
Sky Cover (%)	59	57	52	50	52	57	59	61	65	67	70	77	80	84	91	94	91	84	80	80	80	80	79	76
Precipitation Potential (%)	11	11	11	11	10	10	47	47	47	47	47	47	47	47	47	47	47	47	31	31	31	31	31	31
Relative Humidity (%)	85	74	68	59	54	49	46	46	46	47	51	56	61	67	72	77	79	82	82	87	87	90	90	90
Rain	--	--	--	--	--	--	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc
Thunder	--	--	--	--	--	--	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	SChc	SChc	SChc	SChc	SChc	SChc

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