default:

GFS HRRR 3 km

GEM HRDPS 2.5

GFS HRRR 3

GEM regional 10

UKMO Global 10

DWD ICON Global 11

GFS GRAPES 13

GFS global 13

BOM ACCESS 15

GEM Global 15

ECMWF IFS 25

GFS GraphCast 25

JMA gSM 55

MF Arpege 55

Model	GFS HRRR 3 km run: 13/05 00:22																														GFS 13 km run: 13/05 00:22																																																																unknown run: 13/05 00:22
Date Optimal	Tu 13 6h	Tu 13 7h	Tu 13 8h	Tu 13 9h	Tu 13 10h	Tu 13 11h	Tu 13 12h	Tu 13 13h	Tu 13 14h	Tu 13 15h	Tu 13 16h	Tu 13 17h	Tu 13 18h	Tu 13 19h	Tu 13 20h	We 14 6h	We 14 7h	We 14 8h	We 14 9h	We 14 10h	We 14 11h	We 14 12h	We 14 13h	We 14 14h	We 14 15h	We 14 16h	We 14 17h	We 14 18h	We 14 19h	We 14 20h	Th 15 6h	Th 15 7h	Th 15 8h	Th 15 9h	Th 15 10h	Th 15 11h	Th 15 12h	Th 15 13h	Th 15 14h	Th 15 15h	Th 15 16h	Th 15 17h	Th 15 18h	Th 15 19h	Th 15 20h	Fr 16 6h	Fr 16 7h	Fr 16 8h	Fr 16 9h	Fr 16 10h	Fr 16 11h	Fr 16 12h	Fr 16 13h	Fr 16 14h	Fr 16 15h	Fr 16 16h	Fr 16 17h	Fr 16 18h	Fr 16 19h	Fr 16 20h	Sa 17 6h	Sa 17 7h	Sa 17 8h	Sa 17 9h	Sa 17 10h	Sa 17 11h	Sa 17 12h	Sa 17 13h	Sa 17 14h	Sa 17 15h	Sa 17 16h	Sa 17 17h	Sa 17 18h	Sa 17 19h	Sa 17 20h	Su 18 6h	Su 18 7h	Su 18 8h	Su 18 9h	Su 18 10h	Su 18 11h	Su 18 12h	Su 18 13h	Su 18 14h	Su 18 15h	Su 18 16h	Su 18 17h	Su 18 18h	Su 18 19h	Su 18 20h	Mo 19 6h	Mo 19 7h	Mo 19 8h	Mo 19 9h	Mo 19 10h	Mo 19 11h	Mo 19 12h	Mo 19 13h	Mo 19 14h	Mo 19 15h	Mo 19 16h	Mo 19 17h	Mo 19 18h	Mo 19 19h	Mo 19 20h	Tu 20 6h	Tu 20 7h	Tu 20 8h	Tu 20 9h	Tu 20 10h	Tu 20 11h	Tu 20 12h	Tu 20 13h	Tu 20 14h	Tu 20 15h	Tu 20 16h	Tu 20 17h	Tu 20 18h	Tu 20 19h	Tu 20 20h	We 21 6h	We 21 7h	We 21 8h	We 21 9h	We 21 10h	We 21 11h	We 21 12h	We 21 13h	We 21 14h	We 21 15h	We 21 16h	We 21 17h	We 21 18h	We 21 19h	We 21 20h	Th 22 6h	Th 22 7h	Th 22 8h	Th 22 9h	Th 22 10h	Th 22 11h	Th 22 12h	Th 22 13h	Th 22 14h	Th 22 15h	Th 22 16h	Th 22 17h	Th 22 18h	Th 22 19h	Th 22 20h	Fr 23 6h	Fr 23 7h	Fr 23 8h	Fr 23 9h	Fr 23 10h	Fr 23 11h	Fr 23 12h	Fr 23 13h	Fr 23 14h	Fr 23 15h	Fr 23 16h	Fr 23 17h	Fr 23 18h	Fr 23 19h	Fr 23 20h	Sa 24 6h	Sa 24 7h	Sa 24 8h	Sa 24 9h	Sa 24 10h	Sa 24 11h	Sa 24 12h	Sa 24 13h	Sa 24 14h	Sa 24 15h	Sa 24 16h	Sa 24 17h	Sa 24 18h	Sa 24 19h	Sa 24 20h	Su 25 6h	Su 25 7h	Su 25 8h	Su 25 9h	Su 25 10h	Su 25 11h	Su 25 12h	Su 25 13h	Su 25 14h	Su 25 15h	Su 25 16h	Su 25 17h	Su 25 18h	Su 25 19h	Su 25 20h	Mo 26 6h	Mo 26 7h	Mo 26 8h	Mo 26 9h	Mo 26 10h	Mo 26 11h	Mo 26 12h	Mo 26 13h	Mo 26 14h	Mo 26 15h	Mo 26 16h	Mo 26 17h	Mo 26 18h	Mo 26 19h	Mo 26 20h	Tu 27 6h	Tu 27 7h	Tu 27 8h	Tu 27 9h	Tu 27 10h	Tu 27 11h	Tu 27 12h	Tu 27 13h	Tu 27 14h	Tu 27 15h	Tu 27 16h	Tu 27 17h	Tu 27 18h	Tu 27 19h	Tu 27 20h	We 28 6h	We 28 7h	We 28 8h	We 28 9h	We 28 10h	We 28 11h	We 28 12h	We 28 13h	We 28 14h	We 28 15h	We 28 16h	We 28 17h	We 28 18h	We 28 19h	We 28 20h
Wind Dir.
Wind Spd. (mph)	4	3	6	8	8	7	8	8	9	11	11	11	11	12	12	4	4	3	2	2	1	6	9	10	9	9	9	7	6	4	3	3	4	5	5	7	6	8	9	8	9	9	8	6	5	2	1	2	2	2	2	2	5	6	7	7	7	6	4	2	4	4	4	5	7	7	7	7	9	6	7	7	7	6	6	5	4	4	4	5	6	7	7	7	8	8	7	7	6	5	3	4	4	5	6	7	8	8	8	8	9	9	8	6	5	3	3	4	4	5	6	6	7	7	7	7	6	6	4	3	0	1	1	2	3	3	3	3	3	4	5	5	5	3	2	1	1	1	2	3	4	5	8	9	10	10	9	6	3	2	2	1	1	1	2	3	5	5	6	7	7	7	6	5	3	2	1	1	0	0	1	2	4	5	5	5	6	5	4	4	4	3	2	2	4	6	7	7	7	7	7	6	5	4	4	3	2	1	1	0	1	2	4	5	6	7	8	7	5	4	1	2	3	4	5	6	7	8	9	10	10	9	6	3	2	1	0	1	2	4	5	6	8	8	9	8	8
Gusts (mph)	13	9	12	15	12	10	10	11	13	16	17	18	19	21	22	4	6	10	9	8	5	11	14	15	14	14	14	8	9	7	4	6	6	6	7	10	9	10	11	11	13	14	14	13	13	7	7	6	4	3	5	5	7	7	6	6	5	5	4	6	6	8	9	7	8	8	10	13	14	24	24	25	25	24	23	19	20	20	19	17	16	15	15	14	13	12	11	11	12	12	8	9	10	11	13	15	15	16	16	19	21	22	19	15	11	6	7	7	7	8	8	8	8	8	8	9	9	9	9	9	5	6	6	5	4	4	4	6	6	6	6	6	5	4	3	2	2	2	3	4	4	5	6	7	7	6	6	5	4	4	1	1	2	5	8	10	12	12	12	11	10	8	6	4	3	2	2	3	5	8	10	12	13	14	14	14	13	10	6	4	4	6	8	10	13	15	16	16	16	15	14	12	10	6	4	2	3	3	4	6	7	8	9	10	9	8	7	6	5	4	1	0	1	3	6	8	9	10	10	9	9	8	6	4	3	2	1	1	3	6	8	9	11	11	11	11	11
Temp. (°C)	0	0	0	1	2	3	4	5	6	7	7	6	6	5	4	0	1	3	4	6	7	8	9	10	10	9	9	10	8	4	-1	0	4	6	9	10	12	13	13	13	14	13	11	10	7	1	2	3	4	5	7	12	14	15	14	13	13	12	11	8	3	4	4	6	6	4	5	5	3	2	2	2	1	1	0	0	0	0	0	1	3	4	6	7	8	8	8	6	4	2	0	1	3	5	8	10	11	12	13	13	13	13	11	9	7	2	4	6	8	10	13	14	15	16	16	17	16	14	11	9	4	7	9	12	14	17	18	20	21	21	21	20	18	15	12	8	11	13	16	19	21	22	22	22	22	22	22	20	17	14	10	12	15	17	19	21	22	23	23	23	23	22	20	18	16	11	13	16	19	22	24	25	26	26	26	26	25	22	19	16	12	15	17	19	22	23	24	25	25	25	25	25	22	19	16	12	15	17	20	23	25	26	27	27	27	27	26	24	21	19	11	13	15	18	20	22	23	24	24	24	24	24	22	19	16	10	13	15	18	20	22	23	24	24	24	23	23
Rain (mm)																																																														0.1	0.2	0.1	0.3	0.7	1.2	1.5	1.4	1.1	0.6	0.3
Cloud Cov. (%)	100	100	100	86	70	45	100	86	97	16	14	22	11	13	24	2	19	3	7	9	28	5		15	33	73	78	58	100	68	100	100	100	100	24	100	100	96	83	100	97	100	100	100	100	100	98	100	100	100	100	100	12	16	100	100	100	100	100	100	100	100	100	30	93	100	100	100	100	100	100	100	100	100	100	100	100	100	98	95	93	83	73	63	45	26	8	7	6	5	23	31	40	28	17	5	4	3	2	5	9	12	21	30	39	5	9	12	34	56	78	79	79	80	55	29	4	6	9	11	3	3	4	4	4	4	3	1					3	5	8	10	12	15	17	18	20	39	58	77	62	46	31	53	76	98	83	88	92	87	82	77	85	92	100	100	100	100	92	84	76	13	17	20	18	16	14	19	25	30	32	33	35	55	75	95	80	59	39	26	13																										39	38	36	26	15	5	5	5	5	3	2		2	3	5				13	27	40	60	79	99	99	100	100
High Cloud (%)											2		1	9	24	2	19	3	7	9	6	2		4				51	100	64	100	100	100	100	10	100	100	93	75	100	91	97	100	100	100	100	66	24	5	10	10	5	5	5	100	100	100	100	100	100																2	1								1	1	2	2	3	3	1	1	2	2	3	3	2	1		1	2	3	14	24	35	3	4	5	29	53	77	71	64	58	40	21	3	5	6	8	2	3	3	3	3	3	2	1					2	5	7	8	9	10	11	12	13	32	51	70	55	40	25	49	72	96	80	85	90	85	79	74	83	91	100	100	100	100	92	84	76	11	14	17	14	11	8	15	22	29	31	32	34	54	74	94	78	57	35	23	12																										39	37	35	25	15	5	5	5	5	3	2		1	2	3				13	27	40	60	79	99	99	100	100
Mid Cloud (%)		1	11	48	3		9	86	97	16	14	22	11	9	5				1	4	6			15	33	43	26	5				5	5	5	5	5	66	5	5	68	62	100	100	100	100											47	5		5	82					67	87	100	100	100	100	100	100	90	80	70	16	8																				1	1	2	3	4	5	4	3	2							8	16	24	16	8																																2	3	5																															12	25	37	25	12																																																		1	1	2
Low Cloud (%)	100	100	100	86	70	45	100	68	18	6	2	4	7	13	1					3	28	5		6	21	73	78	10	5													5	10	5	5	60	93	100	100	100	100	100	5	5						5	100	100	100	27	74	100	100	100	95	100	100	100	92	84	76	100	100	100	98	95	93	83	72	62	43	24	5	4	3	2	21	30	38	26	14	2	1	1		2	3	5	7	9	11	2	4	6	4	2
CAPE	20	20	30	30	50	50	60	80	90	90	90	20	0	0	0	0	0	0	0	0	0	0	0	0	0	0	10	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	10	10	0	10	0	0	40	30	30	90	170	220	320	310	60	100	60	30	20	20	10	10	10	10	10	10	10	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	10	10	10	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	10	20	40	50	40	20	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
Ceiling (m)	2.0k	2.0k	1.9k	1.9k	2.1k	2.2k	2.3k	2.4k	2.6k	2.6k	2.6k	2.7k	2.7k	2.4k	2.2k	2.1k	2.2k	2.4k	2.6k	2.5k	2.6k	2.8k	2.9k	3.0k	2.9k	2.8k	2.7k	3.1k	2.9k	2.4k	1.9k	2.1k	2.8k	3.3k	4.0k	4.1k	4.2k	4.2k	4.0k	3.9k	3.9k	3.6k	3.4k	3.1k	2.8k	1.8k	1.9k	2.1k	2.2k	2.4k	2.5k	3.1k	3.3k	3.6k	3.6k	3.5k	3.4k	3.2k	3.0k	2.5k	1.8k	1.9k	2.0k	2.3k	2.4k	2.1k	2.0k	2.1k	1.9k	1.9k	1.9k	1.9k	1.9k	1.9k	1.8k	1.7k	1.8k	1.8k	1.9k	2.0k	2.2k	2.3k	2.6k	2.8k	2.9k	3.0k	3.0k	2.7k	2.4k	2.2k	1.9k	2.0k	2.3k	2.6k	3.1k	3.5k	3.7k	3.6k	3.5k	3.4k	3.3k	3.1k	2.8k	2.5k	2.2k	1.8k	1.9k	2.1k	2.4k	2.9k	3.4k	3.8k	3.9k	4.0k	4.1k	4.2k	4.1k	3.6k	3.1k	2.8k	2.7k	3.0k	3.4k	3.7k	4.0k	4.3k	4.4k	4.5k	4.4k	4.4k	4.4k	4.3k	3.8k	3.3k	3.0k	2.8k	3.0k	3.2k	3.5k	3.7k	4.0k	4.2k	4.4k	4.5k	4.6k	4.6k	4.4k	3.8k	3.3k	3.0k	2.8k	3.0k	3.2k	3.5k	3.8k	4.1k	4.3k	4.5k	4.5k	4.6k	4.5k	4.4k	4.0k	3.5k	3.2k	2.9k	3.1k	3.4k	3.7k	4.2k	4.7k	5.0k	5.0k	5.1k	5.3k	5.6k	5.3k	4.6k	3.8k	3.4k	3.3k	3.6k	4.0k	4.2k	4.5k	4.8k	5.0k	5.3k	5.5k	5.7k	5.9k	5.6k	4.8k	4.0k	3.5k	2.9k	3.3k	3.7k	4.1k	4.5k	4.8k	5.0k	5.1k	5.3k	5.4k	5.4k	5.1k	4.5k	4.0k	3.6k	2.9k	3.1k	3.4k	3.6k	3.9k	4.2k	4.3k	4.3k	4.3k	4.3k	4.5k	4.4k	4.0k	3.5k	3.2k	2.7k	3.0k	3.4k	3.7k	4.1k	4.4k	4.5k	4.5k	4.5k	4.5k	4.5k	4.5k	1.7k	1.7k	1.7k

Herd Peak is an inland desert site located in the Shasta Valley, USA. Known for its excellent summer glass-off conditions and XC potential, this site has a long history of free flight. Both the launch and primary landing zone (LZ) are on private land, and permission is granted for USHPA member pilots. Flight Types: Thermal, XC, Glass-off Season: Spring, Summer, Fall Pilot Proficiency: USHPA P3/H3; P2/H2 with instructor or mentor sign-off. A site introduction is required for all pilots. Glider Restrictions: Speed or mini wings are not permitted. Membership Requirements: USHPA membership is required; RVHPA membership is recommended but not mandatory. Site Waiver: Required and usually available on launch. It is recommended to download and print the waiver and deposit the signed waiver in the box on launch. Launch Coordinates: 41.6166, –122.229 (41°36’59” N, 122°13’44” W) Elevation: 5680 ft. (1732 m.) Launch Type: Dirt slope Wind Directions and Speed: 220 to 270 degrees; 2-14 mph for paragliders, 10-20 mph for hang gliders. Primary LZ (Sheep Rock Ranch) Coordinates: 41.5825, -122.2559 (41°34’57.02″ N, 122°15’21.10″ W) Elevation: 3495 ft. (1066 m.) Glide Ratio: 6.5 Radios & Communication: Local frequency is 151.505 MHz; cell service is good on launch and in the primary LZ with most carriers. Emergencies: Dial 911 Access: 2WD accessible via US highway and dirt US Forest Service roads. Airspace & Air Traffic: No airspace restrictions in the immediate vicinity. Sailplane traffic is common. Klamath Falls airport and military operation areas along XC routes have airspace restrictions and possible military air activity, including fighter jets. Landing Restrictions: Landing in the Lava Beds National Monument is prohibited without prior notification and permission from the National Park Service. Weather Hazards: Overdevelopment, cloud suck, strong desert conditions, dust devils, thermic LZ, high winds, density altitude. Weather Info: [NWS Forecast for LZ](https://forecast.weather.gov/MapClick.php?lat=41.613726&lon=-122.228232&site=rev&unit=0&lg=en&FcstType=text), SoarCast, Grass Lake webcam RVHPA Site Contact: herdpeak@gmail.com; you may also post inquiries to the RVHPA Yahoo! Group. For more information, visit [RVHPA Herd Peak Site Guide](https://rvhpa.org/site-guide/herdpeak/). Welcome to the Herd Peak flying site. This guide is intended to help pilots make the most of their time at Herd Peak while promoting safe flying practices. It is not a substitute for a thorough site introduction from a knowledgeable pilot. Always use your own judgment to determine if it is safe or appropriate to fly under current conditions. If unsure, do not fly. For additional information, visit [AirXpansion](https://airxpansion.com/pages/visit-mount-shasta) and [BHGC Herd Peak Site](http://www.bhgc.org/sites/#site_herd-pe).

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Optimal Wind Direction

Optimal Speed (mph)

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