Last week's highlights
Tuesday 5th May 2015 wind gusts:
A few places had a grass frost Thursday night, then Friday saw more general rain in most areas, NW Wales particularly wet again getting around 25mm (one inch). Capel Curig ending up with 35.6mm in the 24 hours to 0700 Saturday and was the wettest spot in the UK for the second time in a week, hardly any rain though for the South Midlands on Friday. Saturday saw an improvement to generally dry, brighter and, at least for some, milder conditions too, here at Llanwnnen at 14.4c it was almost 3c warmer than Friday.
The week ahead
On Sunday and Monday we are between low pressure west of Ireland and high pressure over the Continent to our east and south. A deep moist, mild SSW flow on Sunday means a rather windy and mostly cloudy day with the odd spit of drizzle for WW, with the sun perhaps poking through at times afternoon. Better chances of some sunny spells for the Midlands with less wind here too so feeling quite warm this afternoon. Highs Sunday 16 to 18c WW and 20c for parts of the Midlands. Generally dry overnight and mild no lower than 9c or 10c. Rain arriving across WW before dawn. Patchy rain across WW during Monday morning, this front tending to fizzle as it edges east into the Midlands but still giving some showery rain in places there afternoon. Sunny intervals too during Monday and quite warm for the Midlands with some places again touching 20c, nearer 15 to 17c WW with a fresh SW wind. Monday night largely dry and fairly mild.
High pressure building close to our SW on Tuesday but perhaps not enough to prevent a scattering of showers, and a fresher feeling day with a moderate to fresh WNW breeze. Some pleasant sunny intervals too Tuesday with temperatures close to average at 14 to 17c, and any showers dying out come evening leading to a clear, calming and cold night with quite a widespread ground frost, down close to 0c locally. High pressure crossing the UK Wednesday should just about give a dry, fine day with sunny spells and highs between 16 and 19c. Fronts from the SW though perhaps introducing cloud and showery rain in places come evening.
Low pressure in some form or other will be crossing the UK during Thursday which will be a cooler and very unsettled day. Probably we will be seeing early rain, heavy in places that should turn to showers afternoon, a chance of thunder in these showers. A cool day with all the cloud, rain or showers no better than 13 or 14c. Potential for strong to gale force winds Thursday as well, this dependent on actual form and postioning of the low come the day. Some showers or longer spells of rain may linger well into Thursday night.
For Friday and next weekend high pressure will be attempting to influence our weather from the SW but with low pressure still close to northern Britain at times. Plenty of reasonably dry and bright weather then seems likely come next weekend, although often with a cool NW to west breeze so never feeling especially warm. We could be affected by the odd passing weak front producing a spell of light rain or shower but the weather should be predominantly dry. Expect maximum temperatures Friday and through the weekend to be in the 13 to 17c range with a ground frost risk should skies clear and winds drop enough by night.