United Kingdom Severe Weather Network - UKSWN

United Kingdom Severe Weather Network - UKSWN Welcome to UKSWN where saving lives is our priority, we try and provide accurate weather information from everyday weather to specialised weather.

UKSWN England HQ:- Liverpool
SKYWARN UK
UKSWN Storm Forecast Initiative and UKSWN Wales HQ:- Bethesda UKSWN Facebook Rules:
1. No Stereotyping people
2. No Swearing or any use of cuss language
3. We will not tolerate Nudity or any inflammatory images
4. UKSWN will not tolerate abuse to staff, any abuse caused will be reported to the police and other law enforcement agencies with the strictest

confidence. We are the United Kingdom Severe Weather Network we are here to protect the public to any impending Natural Disaster i.e. Severe Thunderstorms, Tornadoes other weather phenomenon. We use our radar products and use model data to issue our outlooks and forecast. Thank you for looking us up.

17/08/2026

Snow and ice in a hurricane is perhaps the most wildest thing that the higher elevations of the Big Island of Hawaii has ever seen and thatโ€™s from the direct impacts of what was Hurricane Lala as a Warm core system the past weekend.

Cymraeg/Welsh

Efallai mai eira a rhew yng nghanol corwynt yw'r ffenomen fwyaf eithafol i'w gweld erioed ar ucheldiroedd Ynys Fawr Hawaii; canlyniad uniongyrchol hynny oedd effeithiau'r system 'craidd cynnes' a fu'n gorwynt o'r enw Lala dros y penwythnos diwethaf.

Severe UK Alert - fire weather: for the National Extreme Wildfire Danger currently in place alert has been relayed from ...
14/08/2026

Severe UK Alert - fire weather: for the National Extreme Wildfire Danger currently in place alert has been relayed from the UK Government

Cymraeg/Welsh

Rhybudd Difrifol yn y DU โ€“ tywydd ffafriol i danau gwyllt: mae rhybudd wedi'i gyfleu gan Lywodraeth y DU ynghylch y perygl eithafol o danau gwyllt cenedlaethol sydd mewn grym ar hyn o bryd.

14/08/2026

Here is the latest 06Z GFS of the projected 2m Air Temperature through today indicating areas of Southern Greater London and Northern Surrey county could see a very hot day with the potential for 35C near Reigate at 1:00pm BST. Otherwise cooler fresher conditions will continue to filter in from the west.

Cymraeg/Welsh

Dyma'r rhagolwg diweddaraf (06Z GFS) ar gyfer tymheredd yr aer (ar uchder o 2 fetr) drwy gydol y dydd; mae'n dangos y gallai rhannau o dde Llundain Fwyaf a gogledd Surrey brofi diwrnod poeth iawn, gyda'r posibilrwydd o gyrraedd 35ยฐC ger Reigate am 1:00yp BST. Fel arall, bydd amodau oerach a ffresach yn parhau i symud i mewn o'r gorllewin.

13/08/2026

We are aware of the significant wildfires currently affecting parts of South and Mid and West Wales and the ongoing efforts of our colleagues responding to these incidents.

To support the response, we have deployed resources and staff to assist crews in Mid and West Wales Fire and Rescue Service and equipment to South Wales Fire and Rescue Service while ensuring our operational availability across North Wales remains unaffected.

With conditions remaining dry, we are urging everyone to take extra care and help prevent wildfires from starting.

Weather conditions may, at times, cause smoke from fires in South, and Mid Wales to drift into parts of North Wales. If you notice smoke in your area, please do not be alarmed. As a precaution, keep windows and doors closed.

Our Fire Control colleagues have received a significant number of calls about smoke in recent days relating to fires elsewhere. Please only call 999 if you can see a fire in your area. Help us keep emergency lines clear.

Be this summer ๐Ÿ”ฅ
-Do not light campfires, barbecues or disposable barbecues in the countryside.
-Dispose of ci******es and smoking materials responsibly.
-Take litter home, particularly glass bottles and other reflective materials.
- Report any signs of wildfire immediately by calling 999.

Thank you for helping protect our communities, countryside and emergency services during this period of heightened wildfire risk.

13/08/2026

Did you know that ECMWF IFS forecasts now include the ๐—ถ๐—บ๐—ฝ๐—ฎ๐—ฐ๐˜ ๐—ผ๐—ณ ๐˜€๐—ผ๐—น๐—ฎ๐—ฟ ๐—ฒ๐—ฐ๐—น๐—ถ๐—ฝ๐˜€๐—ฒ๐˜€ ๐—ผ๐—ป ๐—ฝ๐—ฟ๐—ฒ๐—ฑ๐—ถ๐—ฐ๐˜๐—ถ๐—ผ๐—ป๐˜€ ๐—ผ๐—ณ ๐˜๐—ฒ๐—บ๐—ฝ๐—ฒ๐—ฟ๐—ฎ๐˜๐˜‚๐—ฟ๐—ฒ ๐—ฎ๐—ป๐—ฑ ๐—ผ๐˜๐—ต๐—ฒ๐—ฟ ๐˜ƒ๐—ฎ๐—ฟ๐—ถ๐—ฎ๐—ฏ๐—น๐—ฒ๐˜€?

Since IFS CY50R1 was introduced in May this year, the reduction in incoming solar radiation caused by the moonโ€™s shadow is now accounted for in both our medium-range forecasts and the upcoming ERA6 reanalysis. The image below shows a simulated satellite image from the actual forecast for todayโ€™s eclipse.

By running an additional forecast without the representation of the eclipse, we can assess the impact of the eclipse on temperatures close to the surface. As you might expect, the greatest cooling effect is close to the totality, with parts of Iceland seeing temperatures cooled by over two degrees. More surprisingly, regions outside of the totality see temperatures reduced by nearly one degree. The magnitude of the temperature changes will depend on the cloud cover at the time of the eclipse; the effect will be strongest in clear-sky conditions where the view will also be the best.

Check local weather predictions with your National Meteorological and Hydrological Service and make sure to get certified eye protection to enjoy this natural spectacle. On our end weโ€™ll be studying the eclipseโ€™s impact on the forecast!

Just as expected a new provisional record for the hottest August day in Wales has been logged by the Met Office in the l...
12/08/2026

Just as expected a new provisional record for the hottest August day in Wales has been logged by the Met Office in the location of Gogerddan in Cardiganshire county Wales with a high temperature of 35.3C (95.5F) expect a historic August low temperature record as a warm to clammy tropical night is expected throughout tonight into tomorrow morning.

Cymraeg/Welsh

Yn union fel y disgwyliwyd, mae'r Met Office wedi cofnodi record dros dro newydd ar gyfer diwrnod poethaf mis Awst yng Nghymru yn Gogerddan, Ceredigion, gyda thymheredd uchaf o 35.3ยฐC (95.5ยฐF); disgwylir hefyd record hanesyddol ar gyfer y tymheredd isaf ym mis Awst, gan ragweld noson drofannol gynnes a llaith dros y noson hon ac i mewn i fore yfory.

12/08/2026

The next scheduled total eclipse event in the UK will be a total lunar eclipse on New Yearโ€™s Eve December 31st 2028.

Cymraeg/Welsh

Y digwyddiad eclips cyflawn nesaf sydd wedi'i drefnu yn y DU fydd eclips lleuad cyflawn ar Nos Galan, 31 Rhagfyr 2028.

#2028

We were going to do a live stream but a neighbour kindly let me have a glimpse of it through welding equipment that was ...
12/08/2026

We were going to do a live stream but a neighbour kindly let me have a glimpse of it through welding equipment that was the best 2 minutes though some specialised equipment didnโ€™t arrive on time here are a few photos from our storm trackers across the country.

Cymraeg/Welsh

Roedden ni'n bwriadu cynnal darllediad byw, ond yn garedig iawn, gadawodd cymydog i mi gael cipolwg arno drwy offer weldio โ€“ dyna'r ddau funud gorau, er na chyrhaeddodd rhywfaint o offer arbenigol mewn pryd; dyma ychydig o luniau gan ein tracwyr stormydd ledled y wlad.

12/08/2026

Tropical Storm Cristobal is coming west of the Azores NOAA NWS National Hurricane Center will initiate advisories shortly.

Cymraeg/Welsh

Mae Storm Drofannol Cristobal yn dod i'r gorllewin o'r Azores; bydd Canolfan Corwyntoedd Genedlaethol NOAA NWS yn cyhoeddi rhybuddion yn fuan.

12/08/2026

๐Ÿš’Incident update๐Ÿš’
Crews remain in attendance at the fire at Abergwynant Forestry, Gwynedd, tackling hotspots with the current area affected thought to be around 30metres x 20metres. We'd like to thank colleagues from Parc Cenedlaethol Eryri - Eryri National Park and Cyfoeth Naturiol Cymru / Natural Resources Wales for their assistance at the scene.

The fires at this location are thought to have been started deliberately, and North Wales Police will be investigating further.

Weโ€™d appeal to residents to please be vigilant, and if you see any suspicious behaviour in relation to deliberate fire setting, please inform North Wales Police either by their live webchat online or by calling 101.

If you spot a new active fire, please call 999.

Thanks to everyone for their continued support and understanding.

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