Search results (377)

The hot weather will continue across the UK, with heatwave conditions for many, creating ideal conditions for thunderstorms which will bring heavy rain and increasing risks from flash flooding, lightning and hail..

densities and fall speeds than snow. Graupel is typically smaller than hail and forms when supercooled water coats a snowflake. Subsequent testing has shown that the UKCP Local (2.2km) projections (including for temperature, precipitation and wind) can still provide important information for many

(in the context of this document, WAFC SIGWX forecasts. High Level WAFC SIGWX forecasts. Medium Level WAFC SIGWX forecasts. Flight Level Feet Knot (nautical mile per hour) Radioactive (used with CLD) Cloud Graupel (hail) Thunderstorm Volcanic Ash Notice to Airmen NOTAM series relating to volcanic ash

the area of the sample, and a funnel that channels the collected rain into a measuring mechanism or into a reservoir where it may be measured at a later time. As the name implies, rain gauges measure rain not snow, hail or other forms of frozen precipitation. The entrance to the gauge through

gauges measure rain not snow, hail or other forms of frozen precipitation. The entrance to the gauge through the funnel is narrow to avoid debris clogging the mechanism and undesirable evaporation in hot weather. However, the gauge rapidly becomes blocked in snow and any readings at the time

(and proxies) for hail, lightning, wind storms, fire weather, etc. • Focus on data sets of extremes for the UK (both climate extremes and high impact weather events) and UK-responsibility observations back to 1800 and stimulate and coordinate rescue of historical data to improve such data sets • Develop new

these platforms falls into the remit of the NMHSs while other methods will be implemented by DRR organisations or assigned community mobilisers, for example: The coloured-flag warning system; Using loud hailers; and Issuing information at public gathering places, including ‘shebeens’, churches, clinics etc

severity is Page 3 of 41 Hazard Present-day Future • Morocco - Northern Morocco has high hail projected to increase (Richardson et al., 2021). hazard (Raupach et al., 2021). Extreme rainfall at Atlantic coast associated with atmospheric rivers during autumn-winter (Khouakhi et al., 2022). Increased

commented, “There is still limited understanding in the link between the evolution of ice crystals and soft hail with observed lightning flash counts. Additionally, evaluating the accuracy of atmospheric models for predicting lightning in different weather conditions also needs attention. The new tool under

. Beam blocking and clutter can both hinder the radar's ability to detect severe weather events such as convective precipitation or hail. One of the current challenges is radar-based automatic warning system of Cumulusnimbus for aviation, which falsely triggers alarms due to undetected residual wind