Weather archive in Chaek

To receive explanations, hover over the appropriate heading

Date / Local time		T	Po	P	Pa	U	DD	Ff	ff10	ff3	N	WW	W1	W2	Tn	Tx	Cl	Nh	H	Cm	Ch	VV	Td	RRR	tR	E	Tg	E'	sss
2026 May 20, Wednesday	06	9.0 48	623.2 24.54 830.87 830.87		0.0 0 0 0	100	Calm, no wind	Calm			60%. 6/10. 5 oktas						Stratocumulus other than Stratocumulus cumulogenitus.	60%. 6/10. 5 oktas	600-1000 1968-3281	No Altocumulus, Altostratus or Nimbostratus.	Cirrus spissatus, in patches or entangled sheaves, which usually do not increase and sometimes seem to be the remains of the upper part of a Cumulonimbus; or Cirrus castellanus or floccus.	50.0 31.1	9.0 48
	03	10.4 51	623.2 24.54 830.87 830.87		1.2 0.05 1.6 1.6	96	Calm, no wind	Calm			100%. 10/10. 8 oktas	Rain shower(s), slight.					Cumulonimbus capillatus (often with an anvil), with or without Cumulonimbus calvus, Cumulus, Stratocumulus, Stratus or pannus.	100%. 10/10. 8 oktas	600-1000 1968-3281				9.8 50
	00	12.5 55	622.0 24.49 829.27 829.27		0.5 0.02 0.67 0.67	89	Wind blowing from the east	Light air (1 m/s) (4 km/h) (2 mph) (2 knots) (1 Bft)			60%. 6/10. 5 oktas						Cumulonimbus capillatus (often with an anvil), with or without Cumulonimbus calvus, Cumulus, Stratocumulus, Stratus or pannus.	40%. 4/10. 3 oktas	600-1000 1968-3281	No Altocumulus, Altostratus or Nimbostratus.	Cirrus spissatus, in patches or entangled sheaves, which usually do not increase and sometimes seem to be the remains of the upper part of a Cumulonimbus; or Cirrus castellanus or floccus.		10.7 51
May 19, Tuesday	21	13.3 56	621.5 24.47 828.6 828.6		1.0 0.04 1.33 1.33	84	Calm, no wind	Calm			90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas	Thunderstorm, slight or moderate, without hail, but with rain and/or snow at time of observation.				17.5 64	Cumulonimbus capillatus (often with an anvil), with or without Cumulonimbus calvus, Cumulus, Stratocumulus, Stratus or pannus.	90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas	600-1000 1968-3281	No Altocumulus, Altostratus or Nimbostratus.	No Cirrus, Cirrocumulus or Cirrostratus.		10.6 51
	18	17.0 63	620.5 24.43 827.27 827.27		0.0 0 0 0	73	Calm, no wind	Calm			90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas						Cumulonimbus capillatus (often with an anvil), with or without Cumulonimbus calvus, Cumulus, Stratocumulus, Stratus or pannus.	90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas	600-1000 1968-3281	No Altocumulus, Altostratus or Nimbostratus.	Cirrus spissatus, in patches or entangled sheaves, which usually do not increase and sometimes seem to be the remains of the upper part of a Cumulonimbus; or Cirrus castellanus or floccus.	50.0 31.1	12.1 54
	15	15.3 60	620.5 24.43 827.27 827.27		-0.2 -0.01 -0.27 -0.27	76	Calm, no wind	Calm			60%. 6/10. 5 oktas						Cumulonimbus capillatus (often with an anvil), with or without Cumulonimbus calvus, Cumulus, Stratocumulus, Stratus or pannus.	60%. 6/10. 5 oktas	600-1000 1968-3281	No Altocumulus, Altostratus or Nimbostratus.	Cirrus spissatus, in patches or entangled sheaves, which usually do not increase and sometimes seem to be the remains of the upper part of a Cumulonimbus; or Cirrus castellanus or floccus.	50.0 31.1	11.0 52
	12	12.9 55	620.7 24.44 827.53 827.53		0.9 0.04 1.2 1.2	82	Calm, no wind	Calm			100%. 10/10. 8 oktas	Shower(s) of rain.	Shower(s).	Cloud covering more than 1/2 of the sky during part of the appropriate period and covering 1/2 or less during part of the period.			Cumulonimbus capillatus (often with an anvil), with or without Cumulonimbus calvus, Cumulus, Stratocumulus, Stratus or pannus.	100%. 10/10. 8 oktas	600-1000 1968-3281			10.0 6.2	9.8 50
	09	13.5 56	619.8 24.4 826.33 826.33		1.3 0.05 1.73 1.73	67	Calm, no wind	Calm			100%. 10/10. 8 oktas				10.7 51		No Stratocumulus, Stratus, Cumulus or Cumulonimbus.	no clouds no clouds no clouds	2500 or more, or no clouds. 8202 or more, or no clouds.	No Altocumulus, Altostratus or Nimbostratus.	Cirrus spissatus, in patches or entangled sheaves, which usually do not increase and sometimes seem to be the remains of the upper part of a Cumulonimbus; or Cirrus castellanus or floccus.	50.0 31.1	7.4 45
	06	10.9 52	618.5 24.35 824.6 824.6		-0.3 -0.01 -0.4 -0.4	80	Calm, no wind	Calm			50%. 5/10. 4 oktas						Cumulus humilis or Cumulus fractus other than of bad weather, or both.	40%. 4/10. 3 oktas	600-1000 1968-3281	No Altocumulus, Altostratus or Nimbostratus.	Cirrus fibratus, sometimes uncinus, not progressively invading the sky.	50.0 31.1	7.6 46