All Regions Weather Blog Thinning of the Northeast Greenland Ice Stream Greenland’s largest ice stream is expected to contribute more to sea level rise than models previously indicated. Read More… About Author OTW Observer See author's posts Post navigation Previous Caribbean Rain Threat Gets Higher!Next ALERT: Caribbean Flooding RIGHT NOW! Related Stories Overnight temperatures during London heatwave as Met Office forecasts record-breaking heat All Regions Europe Overnight temperatures during London heatwave as Met Office forecasts record-breaking heat June 19, 2026 New Met Office London heatwave warning for hottest ever June day – Exact date it will end All Regions Europe New Met Office London heatwave warning for hottest ever June day – Exact date it will end June 19, 2026 Tropical Storm Arthur Weather Blog Tropical Storm Arthur June 19, 2026