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Summary Arctic sea ice extent for September 2025 was 5.23 million sq km according to the OSI SAF Sea Ice Index, well below the 1981-2010 average but among the higher September extents observed since 2007 Ice loss was above average early in the 2025 melt season, however this was mainly due

Exceptionally wet weather - November 2012 A sequence of heavy rainfall events in late November 2012 resulted in one of the wettest weeks in England in the last 50 years. The rain was due to a series of low pressure systems crossing the UK. Individually, each of these events was not exceptional

to the 1990-2005 long-term average of 12.4. Note: The forecast is for the five full months remaining in the June-November Atlantic tropical storm season. There has already been one named storm - Arthur. More information A detailed report with information on probabilities and the strength and credibility

to the 1990-2005 long-term average of 12.4. Note: The forecast is for the five full months remaining in the June-November Atlantic tropical storm season. There have already been two named storms - Andrea and Barry. More information? A detailed report with information on probabilities and the strength

-November Atlantic tropical storm season. More information? A detailed report with information on probabilities and the strength and credibility of signals within the forecast is produced alongside the headline storm number prediction each season. Download previous reports issued in June from

This forecast was issued on 21 May 2025. An updated seasonal forecast has since been issued in early August. Please see the link below for details. Early August updated seasonal forecast for the whole North Atlantic tropical storm season 2025 Forecast for June to November 2025 Issued 21 May 2025

This forecast was issued on 01 August 2025 and supersedes the pre-season forecast issued in May 2025. Please see the link below for the pre-season forecast. Seasonal North Atlantic tropical storm forecast issued in May 2025 Forecast for the whole 2025 season Issued 01 August 2025  All values given

tropical storm season usually runs from June to November. The degree of activity over the whole season varies from year to year and is measured in several ways. Total number of tropical storms. The number of tropical storms observed over the season is the best known measure of the level of storm activity

This forecast was issued on 02 August 2021 and supersedes the pre-season forecast issued in May 2021. Please see the link below for the pre-season forecast. Seasonal North Atlantic tropical storm forecast issued in May 2021 Forecast for the whole 2021 season Issued 02 August 2021  All values given

hurricane and typhoon are region-specific names for strong tropical cyclones with wind speeds of at least 74 mph. The North Atlantic tropical storm season usually runs from June to November. The degree of activity over the whole season varies from year to year and is measured in several ways. Total