default:

Icon D2 km

MF Arome 1.3

UKMO UK 2

DMI HARMONIE 2

DWD Icon D 2

MF Arome 2.5

KNMI EU 5.5

DWD ICON EU 7

UKMO Global 10

DWD ICON Global 11

MF Arpege EU 11

GFS global 13

GFS GRAPES 13

BOM ACCESS 15

GEM Global 15

GFS GraphCast 25

ECMWF IFS 25

ECMWF AIFS 28

ECMWF IFS 44

JMA gSM 55

MF Arpege 55

Model	Icon D2 km run: 25/05 22:49																		Icon EU 7 km run: 25/05 22:49																																																			Icon Global 11 km run: 25/05 22:49																																		GFS 13 km run: 25/05 22:49																																																																unknown run: 25/05 22:49
Date Optimal	Su 25 20h	Su 25 21h	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	Mo 26 21h	Tu 27 5h	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	Tu 27 21h	We 28 5h	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	We 28 21h	Th 29 5h	Th 29 6h	Th 29 7h	Th 29 8h	Th 29 9h	Th 29 10h	Th 29 11h	Th 29 12h	Th 29 13h	Th 29 14h	Th 29 15h	Th 29 16h	Th 29 17h	Th 29 18h	Th 29 19h	Th 29 20h	Th 29 21h	Fr 30 5h	Fr 30 6h	Fr 30 7h	Fr 30 8h	Fr 30 9h	Fr 30 10h	Fr 30 11h	Fr 30 12h	Fr 30 13h	Fr 30 14h	Fr 30 15h	Fr 30 16h	Fr 30 17h	Fr 30 18h	Fr 30 19h	Fr 30 20h	Fr 30 21h	Sa 31 5h	Sa 31 6h	Sa 31 7h	Sa 31 8h	Sa 31 9h	Sa 31 10h	Sa 31 11h	Sa 31 12h	Sa 31 13h	Sa 31 14h	Sa 31 15h	Sa 31 16h	Sa 31 17h	Sa 31 18h	Sa 31 19h	Sa 31 20h	Sa 31 21h	Su 1 5h	Su 1 6h	Su 1 7h	Su 1 8h	Su 1 9h	Su 1 10h	Su 1 11h	Su 1 12h	Su 1 13h	Su 1 14h	Su 1 15h	Su 1 16h	Su 1 17h	Su 1 18h	Su 1 19h	Su 1 20h	Su 1 21h	Mo 2 5h	Mo 2 6h	Mo 2 7h	Mo 2 8h	Mo 2 9h	Mo 2 10h	Mo 2 11h	Mo 2 12h	Mo 2 13h	Mo 2 14h	Mo 2 15h	Mo 2 16h	Mo 2 17h	Mo 2 18h	Mo 2 19h	Mo 2 20h	Mo 2 21h	Tu 3 5h	Tu 3 6h	Tu 3 7h	Tu 3 8h	Tu 3 9h	Tu 3 10h	Tu 3 11h	Tu 3 12h	Tu 3 13h	Tu 3 14h	Tu 3 15h	Tu 3 16h	Tu 3 17h	Tu 3 18h	Tu 3 19h	Tu 3 20h	Tu 3 21h	We 4 5h	We 4 6h	We 4 7h	We 4 8h	We 4 9h	We 4 10h	We 4 11h	We 4 12h	We 4 13h	We 4 14h	We 4 15h	We 4 16h	We 4 17h	We 4 18h	We 4 19h	We 4 20h	We 4 21h	Th 5 5h	Th 5 6h	Th 5 7h	Th 5 8h	Th 5 9h	Th 5 10h	Th 5 11h	Th 5 12h	Th 5 13h	Th 5 14h	Th 5 15h	Th 5 16h	Th 5 17h	Th 5 18h	Th 5 19h	Th 5 20h	Th 5 21h	Fr 6 5h	Fr 6 6h	Fr 6 7h	Fr 6 8h	Fr 6 9h	Fr 6 10h	Fr 6 11h	Fr 6 12h	Fr 6 13h	Fr 6 14h	Fr 6 15h	Fr 6 16h	Fr 6 17h	Fr 6 18h	Fr 6 19h	Fr 6 20h	Fr 6 21h	Sa 7 5h	Sa 7 6h	Sa 7 7h	Sa 7 8h	Sa 7 9h	Sa 7 10h	Sa 7 11h	Sa 7 12h	Sa 7 13h	Sa 7 14h	Sa 7 15h	Sa 7 16h	Sa 7 17h	Sa 7 18h	Sa 7 19h	Sa 7 20h	Sa 7 21h	Su 8 5h	Su 8 6h	Su 8 7h	Su 8 8h	Su 8 9h	Su 8 10h	Su 8 11h	Su 8 12h	Su 8 13h	Su 8 14h	Su 8 15h	Su 8 16h	Su 8 17h	Su 8 18h	Su 8 19h	Su 8 20h	Su 8 21h	Mo 9 5h	Mo 9 6h	Mo 9 7h	Mo 9 8h	Mo 9 9h	Mo 9 10h	Mo 9 11h	Mo 9 12h	Mo 9 13h	Mo 9 14h	Mo 9 15h	Mo 9 16h	Mo 9 17h	Mo 9 18h	Mo 9 19h	Mo 9 20h	Mo 9 21h
Wind Dir.
Wind Spd. (mph)	15	14	9	12	13	13	14	14	14	13	14	16	16	16	15	15	14	15	12	11	9	10	10	10	10	9	9	11	13	14	15	15	16	16	16	13	13	14	15	18	18	18	19	20	20	20	21	20	17	16	13	12	5	6	8	8	11	14	15	16	16	16	16	15	15	13	12	11	10	11	11	12	12	13	14	14	14	13	13	12	11	10	9	8	10	8	2	2	2	2	3	4	5	6	7	7	6	5	4	3	3	1	1	3	3	4	6	8	10	12	13	13	12	11	12	11	9	7	6	4	1	1	2	2	3	4	2	2	2	1	1	3	3	3	2	1	1	2	2	3	4	5	6	6	7	7	8	10	11	11	10	9	8	7	5	4	4	5	6	8	8	9	9	10	11	12	10	9	7	6	5	6	6	7	7	8	9	10	11	11	12	11	12	12	13	13	10	7	12	13	12	10	9	10	12	15	16	17	16	16	15	13	12	10	8	4	4	4	5	7	9	9	9	8	8	7	7	8	8	8	7	5	2	1	1	2	3	4	4	4	4	4	4	4	5	6	7	7	5	3	2	3	4	5	6	6	5	5	5	4	4	2	1	1	1	2
Gusts (mph)	28	25	15	20	22	23	23	24	25	24	24	28	29	29	29	25	25	25	22	20	17	17	17	17	17	18	16	18	23	23	29	25	26	30	30	25	25	26	28	34	35	34	37	39	39	38	40	39	37	31	28	24	14	14	14	18	21	25	26	28	29	30	31	32	30	28	25	23	20	20	21	21	24	27	30	28	26	24	24	23	23	21	18	16	20	17	4	4	4	6	8	9	11	12	13	13	12	11	10	9	8	6	4	6	8	8	12	16	19	21	23	24	23	23	22	20	18	16	13	10	1	2	2	2	3	3	3	2	1	1	2	2	2	2	2	2	1	3	4	6	6	7	8	8	8	9	11	14	16	16	15	14	12	9	10	12	13	13	13	13	13	13	13	13	13	13	13	12	11	9	7	20	18	16	15	14	14	14	15	15	16	16	16	17	18	17	13	8	27	27	26	23	20	17	17	18	19	19	19	19	20	20	20	20	19	6	8	10	11	11	11	11	11	11	11	11	11	11	11	11	9	7	4	2	2	2	4	4	4	4	4	4	4	5	5	5	5	5	5	3	3	2	3	5	6	8	9	9	9	7	7	9	12	13	12	9
Temp. (°C)	11	10	8	9	10	11	12	13	12	13	13	14	13	13	12	12	12	11	11	10	10	11	11	12	12	12	12	12	12	13	14	14	14	14	13	12	12	13	13	13	14	15	16	16	16	17	17	16	15	14	13	12	11	11	11	12	14	15	16	16	16	16	17	17	17	17	16	16	15	13	13	14	14	15	16	17	18	18	19	20	20	20	19	18	14	13	9	10	11	12	13	15	16	17	18	19	19	19	19	19	18	17	16	10	11	12	13	15	16	16	17	17	17	17	17	16	15	14	14	14	8	9	10	11	13	14	15	16	16	16	16	15	15	15	15	13	12	8	9	10	12	14	15	16	17	18	18	17	16	16	16	16	14	11	7	8	9	11	13	15	16	17	18	18	18	18	18	17	16	13	11	11	11	11	11	12	13	14	16	17	17	17	16	16	16	16	14	12	11	11	11	12	12	13	15	16	17	18	18	17	17	16	15	13	11	8	9	10	11	13	15	16	17	18	19	20	20	20	20	19	17	14	11	12	13	14	16	18	19	20	21	22	23	23	23	22	21	19	17	13	14	15	17	18	20	21	22	22	23	24	24	24	23	22	21	20
Rain (mm)																										0.4	1.1	1.9	1.5	1.2	0.5	0.1		0.2	0.2	0.4	0.4	0.1															0.5	0.5	0.5	0.2	0.2	0.2																																																							0.3	0.3	0.3	3.5	3.5	3.5	1.1	1.1							0.1	0.1	0.1	0.4	0.4	0.4	0.4	0.4	0.4																																											0.1	0.1	0.1									0.1	0.1	0.1
Cloud Cov. (%)	36	27	100	100	100	95	91	97	100	100	97	94	98	96	100	100	100	99	100	100	99	100	99	99	100	100	100	100	100	100	100	100	100	100	99	100	94	85	68	100	80	53	98	80	37	92	100	100	95	100	100	100	100	100	100	100	100	100	100	99	99	97	94	92	95	97	100	93	86	86	90	95	97	98	100	90	79	69	79	90	100	100	100	100	100	100	99	99	99	98	98	97	83	70	56	57	58	59	73	86	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	78	89	100	99	99	98	99	99	100	100	100	100	92	85	77	52	27				1	2	3	16	30	43	62	81	100	85	69	54	68	83	100	100	100	100	100	100	100	100	100	100	99	99	99	100	100	100	100	100	100	100	100	100	100	97	95	92	94	95	97	88	79	70	73	76	92	96	100	100	100	100	92	83	75	67	59	51	56	60	65	72	80	28	49	70	80	90	100	97	95	92	66	39	13	13	14	14	11	8	21	42	63	45	26	8	10	13	15	12	8	5	31	58	84	78	72	90	95	99	99	100	100	100	100	100	100	100	100	100	100	100	100	100
High Cloud (%)			100	100	100	36	40	1		43				4	100	100	73	11	100	85	97	100	88	84	100	100	100	100	100	92	100	57		100		100				100	57		79	38	24	80	100	100	89	100	100	100	100	100	100	100	100	100	96	92	88	79	69	60	73	87	100	67	33				33	67	100	76	51	27	51	76	100	100	100	100	100	100	95	95	94	92	91	89	59	30		3	7	10	40	70	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	74	87	100	97	93	90	79	67	56	71	85	100	92	84	76	51	27				1	2	3	4	6	7	5	4	2	8	15	21	46	72	100	100	100	100	100	100	100	100	100	99	99	98	99	99	100	99	98	100	100	100	100	100	100	77	54	31	44	57	70	57	43	30	44	59	47	53	58	40	23	5	16	26	37	40	43	46	49	51	54	65	75	24	46	68	58	47	37	40	44	47	32	18	3	2	1				20	40	60	42	23	5	4	4	3	3	3	3	29	56	82	66	50	72	84	95	97	98	100	100	100	100	95	90	85	90	95	100	100	100
Mid Cloud (%)	26	1		70	66	68	73	92	100	100	93	87	92	82	100	83	100	76	100	100	97	100	96	96	100	100	100	100	100	100	100	100	90	100	97	100	62						74	45	2	36					64	56	94	96	98	99	99	100	91	82	73	73	73	73	65	58	50	33	17	20	40	60	69	77	86	63	40	17	34	50	67	70	72	75	47	23	74	83	92	77	61	46	32	19	5	6	8	9	15	21	27	18	9	16	33	49	58	68	77	85	92	100	100	100	100	100	100	100	90	81	55	72	90	92	93	95	97	98	100	100	100	100	84	67	51	34	17																								1	1	2	19	36	53	60	66	73	68	63	100	100	100	98	97	95	64	33	2	1	1							23	45	68	45	23													16	26	37	58	79	100	86	71	57	40	24	7	5	4	2	1	1				1	1	2	2	2	2	2	3	3	2	1		18	36	78	83	89	93	96	100	100	100	100	100	100	100	92	83	75	80	84
Low Cloud (%)	13	27	89	73	84	78	73	95	100	58	67	92	95	95	99	89	81	99	81	48		6	43	66	66	75	99	100	100	100	100	100	100	100	92	80	89	85	68	76	64	53	51	50	14	51	16	26	26	38	44	41	84	88	93	95	98	100	99	98	97	89	81	73	77	82	86	84	81	84	88	91	89	87	85	72	59	46	37	28	19	13	6		33	35	47	51	56	54	52	50	51	51	52	50	48	46	41	35	30	20	10	13	6					25	51	76	55	33	12	39	66	93	93	93				1	2	3	10	18	25	22	20	17	12	8	3	2	1							12	23	35	57	78	100	78	55	33	22	11																		82	75	69	79	90	100	95	89	84	84	84	84	78	73	67	49	30	71	86	100	100	100	100	90	79	69	47	24	2	7	12	17	11	6							2	3	5	5	5	5	8	10	13	10	8							3	7	10	7	3			1	1	1					1	2	3	13	23	33	34	36	37	37	37	37	25	14
CAPE	0	0	0	0	0	0	20	10	10	30	20	10	10	10	20	10	10	0	10	0	0	0	0	10	10	10	10	0	0	0	10	0	0	0	0	40	20	30	10	40	20	20	20	10	0	10	0	0	0	0	0	0	0	0	0	0	10	10	10	0	0	0	0	0	0	0	0	0	10	0	0	0	0	0	10	30	50	60	60	60	50	40	40	30	0	0	0	0	0	0	10	10	10	0	0	0	10	10	10	0	0	0	0	0	0	0	0	0	0	10	30	40	30	10	0	0	0	0	10	20	0	0	0	10	10	30	50	90	130	190	260	320	380	420	410	300	130	0	0	0	10	20	30	40	40	40	40	40	40	30	20	10	0	0	0	0	0	0	0	0	0	10	10	10	10	10	10	0	0	0	0	0	0	0	10	10	20	30	30	40	40	40	40	40	50	50	40	20	0	0	0	10	20	30	30	20	20	20	10	10	10	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	10	10	10	20	20	10	10	0	0	0	0	0	0	0	0	0	10	10	20	20	20	20	10	10
Ceiling (m)	915	732	378	439	561	719	890	1.0k	841	793	951	1.1k	939	817	707	561	500	549	463	561	622	646	671	719	695	622	439	353	378	402	414	427	439	439	402	402	366	439	573	634	780	963	1.2k	1.3k	1.2k	1.3k	1.3k	1.2k	988	878	732	622	414	402	378	390	427	451	500	512	561	585	597	634	622	634	597	549	488	366	390	427	463	536	597	671	768	866	1.0k	1.1k	1.2k	1.2k	1.1k	976	707	573	317	329	353	427	549	695	890	1.1k	1.3k	1.4k	1.4k	1.4k	1.4k	1.4k	1.3k	1.2k	1.0k	488	610	756	878	1.0k	1.1k	1.0k	951	866	841	817	768	671	536	451	414	390	439	500	561	683	854	976	1.1k	1.1k	1.1k	1.0k	890	805	756	707	683	634	585	463	439	451	536	707	854	1.0k	1.2k	1.3k	1.2k	1.1k	1.0k	1.0k	1.1k	1.0k	866	646	378	390	451	610	829	1.0k	1.2k	1.3k	1.3k	1.4k	1.4k	1.4k	1.3k	1.1k	988	817	671	744	658	561	524	500	549	658	854	1.0k	1.1k	1.1k	1.1k	1.1k	1.0k	927	756	573	305	280	280	305	366	463	707	1.0k	1.4k	1.5k	1.4k	1.4k	1.3k	1.1k	976	817	658	402	439	512	658	817	976	1.1k	1.2k	1.3k	1.3k	1.4k	1.4k	1.3k	1.1k	927	744	549	378	402	463	573	707	866	1.0k	1.1k	1.2k	1.3k	1.4k	1.4k	1.3k	1.1k	963	829	707	976	927	927	988	1.1k	1.2k	1.3k	1.3k	1.3k	1.4k	1.5k	1.5k	1.3k	1.1k	890	866	939

Golden Ball is a paragliding site located in the County of Wiltshire, UK. The site offers a grassy takeoff area with an elevation of approximately 260 meters (765 feet) AMSL. It is primarily used for cross-country (XC) flights, especially during the summer months. The site is sensitive and requires pilots to be full members of the Thames Valley Hang Gliding Club (TVHGC) to fly. Guest memberships are available for visiting pilots. The site is available year-round but may be closed due to farm activities, so it's essential to check before planning your flight. The wind direction is primarily from the southeast to south, and the site features a south-facing escarpment. Parking is available at the Golden Ball/Knap Hill public car park. Be cautious of car thieves in the area. Access to the takeoff area is on foot via designated footpaths from the car park. There are no designated top, slope, or bottom landing areas. Pilots should avoid landing beyond the fence east of the launch area. If an emergency landing is necessary beyond the fence, pilots must walk back to the takeoff position and not take off from beyond the fence. The site is close to Lyneham airspace, so pilots should carefully study their air maps and check NOTAMs for any reactivation of airspace or ATZ. Common XC routes include flying towards Marlborough and navigating around the airspace near Uffington Castle and the Vale of the White Horse. For more information, visit the Thames Valley Hang Gliding Club website: [TVHGC](http://tvhgc.co.uk) or [Golden Ball Site Details](http://www.tvhgc.co.uk/index.php/tvhgcsites/golden-ball). Watch videos of flights at Golden Ball: [Video 1](https://www.youtube.com/watch?v=Vp0oEtxnhp0) [Video 2](https://www.youtube.com/watch?v=4x6kHV6BExU)

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Optimal Wind Direction

Optimal Speed (mph)

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