Re: [WR] Romsey - freezing rain (technically)
- From: "John" <johnhallam@xxxxxxxxxxxx>
- Date: Wed, 30 Nov 2005 15:17:54 -0000
The definition changed some time ago in the Met Office,
probably due to auto obs taking over from experienced observers. Now, any
liquid pnp falling when the air temp is below freezing is called freezing
pnp. Nigel will be able to confirm this, I hope.
John
"Nigel Paice" <nigelpaice@xxxxxxx> wrote in message
news:3v58f5F14a850U1@xxxxxxxxxxxxxxxxx
> The very slight rain now falling is classed as freezing
> because our air temp is -0.1C and the concrete temp
> is -0.2C. It is, however, having no obvious impact on
> any surfaces. Odd spots have been falling since 0825Z.
>
> SYNOP 30/0850Z
> 03/// 41550 71202 11001 21008 40100 57005 76622
> 875// 333 85620 87635 92600=
>
> METAR
> EG// 300850Z 12002KT 5000 -FZRA BKN020 BKN035
> M00/M01 Q//// WHT=
>
> Details:
> wind... SE by E, force 1.
> visibility... 5000m (due to mist rather than pptn).
> weather... slight freezing rain (and mist).
> clouds... broken SC layers at 2000ft and 3500ft.
> dry bulb... -0.1C.
> dewpoint... -0.8C.
> RH... 95%.
> min temp last night... -2.8C.
> sea level pressure... 1010mb (falling slowly).
> rainfall last hour... trace.
> state of ground... frozen with slight hoar visible.
>
> beaufort letters (0750-0850Z)... cx,crox,cx,crox.
>
> Nigel (Romsey, Hampshire)
>
> post script: temps rose above freezing by 0900Z.
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