Australian government: Advice for travellers
Canadian government: Travel Advice and Advisories
New Zealand: Official advice for travellers
Uk government: Foreign travel advice
Us government: Traveler’s Checklist - Transportation Security Administration

Active tropical cyclones

Hurricane Zone - Active tropical cyclones
USA Hurricane Center - NOAA
Weather Underground - Current Hurricane and Tropical Cyclones

National Weather Services

Australia: Weather Zone
Austria: ZAMG
Barbados: Barbados Weather
Belgium: Institut Royal Météorologique
Belize: National Meteorological Service
Bhutan: Hydromet
Canada: Weather GC
China: China Meteorological Administration
Croatia: Croatian Meteorological and Hydrological Service
Denmark: Danish Meteorological Institute (DMI)
Fiji: Fiji Meteorological Service
Finland: Finland Meteorological Institute
France: Méteo France
Japan: Japan Meteorological Agency
Germany: Deutscher Wetterdienst
Greece: Hellenic National Meteorological Service
Hungary: OMSZ
Ireland: Met Éireann
Israel: Israel Meteorological Service
Italy: Meteo Am
Macau: Direcção dos serviços meteorológicos e geofísicos
Mexico: Servicio Meteorológico Nacional
Nepal: Meteorological Forecasting Division
New Zeland: Met Service
Peru: Senamhi
Philippines: Pagasa
Portugal: Ipma
Serbia: RHMS of Serbia
Seychelles: Seychelles Meteorological Authority
Singapore: Meteorological Service of Singapore
South Africa: South African Weather Service
South Korea: Korean Meteorological Administration
Spain: Agencia Estatal de Meteorología (AEMET)
Switzerland: MeteoSwiss
Taiwan: Central Weather Bureau
Thailand: Thai Meteorological Department
Turkey: Turkish State Meteorological Service (TSMS)
United Kingdom: Met Office
United States: National Weather Service
Venezuela: Instituto Nacional de Meteorología e Hidrología (INAMEH)

World Meteorological Organization - WMO
Public - WMO