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and is often characterised by heavy showers and thunderstorms. While it is unlikely that you’ll have a washout, there remains the risk of hurricanes during this period as well with the most active period often generally falling between August to October. Rainfall is highest during October

© Crown Copyright 2019, Met Office 5 Exploring extreme weather | Extreme weather Extreme weather profile cards Hurricane Hurricanes are very large, rapidly rotating storms, with very strong winds and thunderstorms. Each year several make landfall and can cause considerable damage to property

studios of southern California are renowned for creating dramatic storylines. But sometimes the region produces events which rival anything from a film producer’s imagination. Tropical Storm Hilary – a former hurricane – is bringing intense rainfall to the South Western United States. So much rain

- this is due to the channelling effects they have on the atmosphere. May sees the beginning of the rainy season with rain falling mostly as late showers, and is heavier on the mountains and north-east facing coasts. From June to December, hurricanes can hit the Caribbean, although Trinidad & Tobago are too far south to be affected.

areas of improvement such as the improvements to the NSWWS which MH and her team have delivered. The group were informed about the Met Office work in forecasting and tracking the Atlantic hurricanes which have plagued the Caribbean this season. The Met Office global model, and a nested high resolution

Tropical depressions (<35 knots) 0(2) 1(2) 0(0) 1(4) Tropical storms (35-63 knots) 3(7) 6(6) 0(0) 9(13) Hurricanes/typhoons (>63 knots) 7(4) 7(2) 0(0) 14(6) Total 10(13) 14(10) 0(0) 24(23) Basin name abbreviations: SWI : South-West Indian (west of 90° E) AUS : Australian (east of 90° E) SAT : South

the Pennines too. Weathermen were required to know which way the wind blew as many were forced to take shelter from the storm. As typical for Storm Dylan, a hard rain did indeed fall, buckets of it in fact, with many caught blowing in the wind, though never quite becoming a hurricane.

of frequencies and gives up-to-date information and advice. There is also a lot of information on a variety of web sites, the most authoritative being those maintained by NOAA and the National Hurricane Center.

Fresh breeze 10 15 14.64 22.00 0.492 1.107 Fresh gale 20 25 29.34 36.67 1.968 3.075 Strong gale 30 35 44.01 51.34 4.429 6.027 Hard gale 40 45 56.68 66.01 7.873 9.963 Storm 50 75.35 12.300 Violent hurricanes, tempests, etc. 60 80 100 88.02 117.36 146.70 17.715 31.490 49.200 Table 1. Velocities and forces

depression in real time. In post season reanalysis 07E was upgraded to a tropical storm. Douglas (08E) 20-29 July 954 mb, 115 knots Track forecast errors were very low for this hurricane, particularly at shorter lead times. For example, 3- and 4-day errors were less than half of the 5-year running mean