| Afghanistan |
damaging earthquakes occur in Hindu Kush mountains; flooding; droughts |
| Albania |
destructive earthquakes; tsunamis occur along southwestern coast; floods; drought |
| Algeria |
mountainous areas subject to severe earthquakes; mudslides and floods in rainy season |
| American Samoa |
typhoons common from December to March |
| Andorra |
avalanches |
| Angola |
locally heavy rainfall causes periodic flooding on the plateau |
| Anguilla |
frequent hurricanes and other tropical storms (July to October) |
| Antarctica |
katabatic (gravity-driven) winds blow coastward from the high interior; frequent blizzards form near the foot of the plateau; cyclonic storms form over the ocean and move clockwise along the coast; volcanism on Deception Island and isolated areas of West Antarctica; other seismic activity rare and weak; large icebergs may calve from ice shelf |
| Antigua and Barbuda |
hurricanes and tropical storms (July to October); periodic droughts |
| Arctic Ocean |
ice islands occasionally break away from northern Ellesmere Island; icebergs calved from glaciers in western Greenland and extreme northeastern Canada; permafrost in islands; virtually ice locked from October to June; ships subject to superstructure icing from October to May |
| Argentina |
San Miguel de Tucuman and Mendoza areas in the Andes subject to earthquakes; pamperos are violent windstorms that can strike the pampas and northeast; heavy flooding |
| Armenia |
occasionally severe earthquakes; droughts |
| Aruba |
lies outside the Caribbean hurricane belt |
| Ashmore and Cartier Islands |
surrounded by shoals and reefs that can pose maritime hazards |
| Atlantic Ocean |
icebergs common in Davis Strait, Denmark Strait, and the northwestern Atlantic Ocean from February to August and have been spotted as far south as Bermuda and the Madeira Islands; ships subject to superstructure icing in extreme northern Atlantic from October to May; persistent fog can be a maritime hazard from May to September; hurricanes (May to December) |
| Australia |
cyclones along the coast; severe droughts; forest fires |
| Austria |
landslides; avalanches; earthquakes |
| Azerbaijan |
droughts |
| Bahamas, The |
hurricanes and other tropical storms cause extensive flood and wind damage |
| Bahrain |
periodic droughts; dust storms |
| Baker Island |
the narrow fringing reef surrounding the island can be a maritime hazard |
| Bangladesh |
droughts, cyclones; much of the country routinely inundated during the summer monsoon season |
| Barbados |
infrequent hurricanes; periodic landslides |
| Bassas da India |
maritime hazard since it is usually under water during high tide and surrounded by reefs; subject to periodic cyclones |
| Belarus |
NA |
| Belgium |
flooding is a threat along rivers and in areas of reclaimed coastal land, protected from the sea by concrete dikes |
| Belize |
frequent, devastating hurricanes (June to November) and coastal flooding (especially in south) |
| Benin |
hot, dry, dusty harmattan wind may affect north from December to March |
| Bermuda |
hurricanes (June to November) |
| Bhutan |
violent storms from the Himalayas are the source of the country's name which translates as Land of the Thunder Dragon; frequent landslides during the rainy season |
| Bolivia |
flooding in the northeast (March-April) |
| Bosnia and Herzegovina |
destructive earthquakes |
| Botswana |
periodic droughts; seasonal August winds blow from the west, carrying sand and dust across the country, which can obscure visibility |
| Bouvet Island |
NA |
| Brazil |
recurring droughts in northeast; floods and occasional frost in south |
| British Indian Ocean Territory |
NA |
| British Virgin Islands |
hurricanes and tropical storms (July to October) |
| Brunei |
typhoons, earthquakes, and severe flooding are rare |
| Bulgaria |
earthquakes, landslides |
| Burkina Faso |
recurring droughts |
| Burma |
destructive earthquakes and cyclones; flooding and landslides common during rainy season (June to September); periodic droughts |
| Burundi |
flooding, landslides, drought |
| Cambodia |
monsoonal rains (June to November); flooding; occasional droughts |
| Cameroon |
volcanic activity with periodic releases of poisonous gases from Lake Nyos and Lake Monoun volcanoes |
| Canada |
continuous permafrost in north is a serious obstacle to development; cyclonic storms form east of the Rocky Mountains, a result of the mixing of air masses from the Arctic, Pacific, and North American interior, and produce most of the country's rain and snow east of the mountains |
| Cape Verde |
prolonged droughts; seasonal harmattan wind produces obscuring dust; volcanically and seismically active |
| Cayman Islands |
hurricanes (July to November) |
| Central African Republic |
hot, dry, dusty harmattan winds affect northern areas; floods are common |
| Chad |
hot, dry, dusty harmattan winds occur in north; periodic droughts; locust plagues |
| Chile |
severe earthquakes; active volcanism; tsunamis |
| China |
frequent typhoons (about five per year along southern and eastern coasts); damaging floods; tsunamis; earthquakes; droughts; land subsidence |
| Christmas Island |
the narrow fringing reef surrounding the island can be a maritime hazard |
| Clipperton Island |
NA |
| Cocos (Keeling) Islands |
cyclone season is October to April |
| Colombia |
highlands subject to volcanic eruptions; occasional earthquakes; periodic droughts |
| Comoros |
cyclones possible during rainy season (December to April); Le Kartala on Grand Comore is an active volcano |
| Congo, Democratic Republic of the |
periodic droughts in south; Congo River floods (seasonal); in the east, in the Great Rift Valley, there are active volcanoes |
| Congo, Republic of the |
seasonal flooding |
| Cook Islands |
typhoons (November to March) |
| Coral Sea Islands |
occasional tropical cyclones |
| Costa Rica |
occasional earthquakes, hurricanes along Atlantic coast; frequent flooding of lowlands at onset of rainy season and landslides; active volcanoes |
| Cote d'Ivoire |
coast has heavy surf and no natural harbors; during the rainy season torrential flooding is possible |
| Croatia |
destructive earthquakes |
| Cuba |
the east coast is subject to hurricanes from August to November (in general, the country averages about one hurricane every other year); droughts are common |
| Cyprus |
moderate earthquake activity; droughts |
| Czech Republic |
flooding |
| Denmark |
flooding is a threat in some areas of the country (e.g., parts of Jutland, along the southern coast of the island of Lolland) that are protected from the sea by a system of dikes |
| Djibouti |
earthquakes; droughts; occasional cyclonic disturbances from the Indian Ocean bring heavy rains and flash floods |
| Dominica |
flash floods are a constant threat; destructive hurricanes can be expected during the late summer months |
| Dominican Republic |
lies in the middle of the hurricane belt and subject to severe storms from June to October; occasional flooding; periodic droughts |
| East Timor |
floods and landslides are common; earthquakes, tsunamis, tropical cyclones |
| Ecuador |
frequent earthquakes, landslides, volcanic activity; floods; periodic droughts |
| Egypt |
periodic droughts; frequent earthquakes, flash floods, landslides; hot, driving windstorm called khamsin occurs in spring; dust storms, sandstorms |
| El Salvador |
known as the Land of Volcanoes; frequent and sometimes very destructive earthquakes and volcanic activity; extremely susceptible to hurricanes |
| Equatorial Guinea |
violent windstorms, flash floods |
| Eritrea |
frequent droughts; locust swarms |
| Estonia |
sometimes flooding occurs in the spring |
| Ethiopia |
geologically active Great Rift Valley susceptible to earthquakes, volcanic eruptions; frequent droughts |
| Europa Island |
NA |
| European Union |
flooding along coasts; avalanches in mountainous area; earthquakes in the south; volcanic eruptions in Italy; periodic droughts in Spain; ice floes in the Baltic |
| Falkland Islands (Islas Malvinas) |
strong winds persist throughout the year |
| Faroe Islands |
NA |
| Fiji |
cyclonic storms can occur from November to January |
| Finland |
NA |
| France |
flooding; avalanches; midwinter windstorms; drought; forest fires in south near the Mediterranean |
| French Guiana |
high frequency of heavy showers and severe thunderstorms; flooding |
| French Polynesia |
occasional cyclonic storms in January |
| French Southern and Antarctic Lands |
Ile Amsterdam and Ile Saint-Paul are extinct volcanoes |
| Gabon |
NA |
| Gambia, The |
drought (rainfall has dropped by 30% in the last 30 years) |
| Gaza Strip |
droughts |
| Georgia |
earthquakes |
| Germany |
flooding |
| Ghana |
dry, dusty, northeastern harmattan winds occur from January to March; droughts |
| Gibraltar |
NA |
| Glorioso Islands |
periodic cyclones |
| Greece |
severe earthquakes |
| Greenland |
continuous permafrost over northern two-thirds of the island |
| Grenada |
lies on edge of hurricane belt; hurricane season lasts from June to November |
| Guadeloupe |
hurricanes (June to October); Soufriere de Guadeloupe is an active volcano |
| Guam |
frequent squalls during rainy season; relatively rare, but potentially very destructive typhoons (June - December) |
| Guatemala |
numerous volcanoes in mountains, with occasional violent earthquakes; Caribbean coast extremely susceptible to hurricanes and other tropical storms |
| Guernsey |
NA |
| Guinea |
hot, dry, dusty harmattan haze may reduce visibility during dry season |
| Guinea-Bissau |
hot, dry, dusty harmattan haze may reduce visibility during dry season; brush fires |
| Guyana |
flash floods are a constant threat during rainy seasons |
| Haiti |
lies in the middle of the hurricane belt and subject to severe storms from June to October; occasional flooding and earthquakes; periodic droughts |
| Heard Island and McDonald Islands |
Mawson Peak, an active volcano, is on Heard Island |
| Holy See (Vatican City) |
NA |
| Honduras |
frequent, but generally mild, earthquakes; extremely susceptible to damaging hurricanes and floods along the Caribbean coast |
| Hong Kong |
occasional typhoons |
| Howland Island |
the narrow fringing reef surrounding the island can be a maritime hazard |
| Iceland |
earthquakes and volcanic activity |
| India |
droughts; flash floods, as well as widespread and destructive flooding from monsoonal rains; severe thunderstorms; earthquakes |
| Indian Ocean |
occasional icebergs pose navigational hazard in southern reaches |
| Indonesia |
occasional floods, severe droughts, tsunamis, earthquakes, volcanoes, forest fires |
| Iran |
periodic droughts, floods; dust storms, sandstorms; earthquakes |
| Iraq |
dust storms, sandstorms, floods |
| Ireland |
NA |
| Isle of Man |
NA |
| Israel |
sandstorms may occur during spring and summer; droughts; periodic earthquakes |
| Italy |
regional risks include landslides, mudflows, avalanches, earthquakes, volcanic eruptions, flooding; land subsidence in Venice |
| Jamaica |
hurricanes (especially July to November) |
| Jan Mayen |
dominated by the volcano Haakon VII Toppen/Beerenberg; volcanic activity resumed in 1970 |
| Japan |
many dormant and some active volcanoes; about 1,500 seismic occurrences (mostly tremors) every year; tsunamis; typhoons |
| Jarvis Island |
the narrow fringing reef surrounding the island poses a maritime hazard |
| Jersey |
NA |
| Johnston Atoll |
NA |
| Jordan |
droughts; periodic earthquakes |
| Juan de Nova Island |
periodic cyclones |
| Kazakhstan |
earthquakes in the south, mudslides around Almaty |
| Kenya |
recurring drought; flooding during rainy seasons |
| Kingman Reef |
wet or awash most of the time, maximum elevation of about 1 meter makes Kingman Reef a maritime hazard |
| Kiribati |
typhoons can occur any time, but usually November to March; occasional tornadoes; low level of some of the islands make them very sensitive to changes in sea level |
| Korea, North |
late spring droughts often followed by severe flooding; occasional typhoons during the early fall |
| Korea, South |
occasional typhoons bring high winds and floods; low-level seismic activity common in southwest |
| Kuwait |
sudden cloudbursts are common from October to April and bring heavy rain, which can damage roads and houses; sandstorms and dust storms occur throughout the year, but are most common between March and August |
| Kyrgyzstan |
NA |
| Laos |
floods, droughts |
| Latvia |
NA |
| Lebanon |
dust storms, sandstorms |
| Lesotho |
periodic droughts |
| Liberia |
dust-laden harmattan winds blow from the Sahara (December to March) |
| Libya |
hot, dry, dust-laden ghibli is a southern wind lasting one to four days in spring and fall; dust storms, sandstorms |
| Liechtenstein |
NA |
| Lithuania |
NA |
| Luxembourg |
NA |
| Macau |
typhoons |
| Macedonia |
high seismic risks |
| Madagascar |
periodic cyclones, drought, and locust infestation |
| Malawi |
NA |
| Malaysia |
flooding, landslides, forest fires |
| Maldives |
low level of islands makes them very sensitive to sea level rise |
| Mali |
hot, dust-laden harmattan haze common during dry seasons; recurring droughts; occasional Niger River flooding |
| Malta |
NA |
| Marshall Islands |
infrequent typhoons |
| Martinique |
hurricanes, flooding, and volcanic activity (an average of one major natural disaster every five years) |
| Mauritania |
hot, dry, dust/sand-laden sirocco wind blows primarily in March and April; periodic droughts |
| Mauritius |
cyclones (November to April); almost completely surrounded by reefs that may pose maritime hazards |
| Mayotte |
cyclones during rainy season |
| Mexico |
tsunamis along the Pacific coast, volcanoes and destructive earthquakes in the center and south, and hurricanes on the Pacific, Gulf of Mexico, and Caribbean coasts |
| Micronesia, Federated States of |
typhoons (June to December) |
| Midway Islands |
NA |
| Moldova |
landslides (57 cases in 1998) |
| Monaco |
NA |
| Mongolia |
dust storms, grassland and forest fires, drought, and "zud," which is harsh winter conditions |
| Montserrat |
severe hurricanes (June to November); volcanic eruptions (Soufriere Hills volcano has erupted continuously since 1995) |
| Morocco |
northern mountains geologically unstable and subject to earthquakes; periodic droughts |
| Mozambique |
severe droughts; devastating cyclones and floods occur in central and southern provinces |
| Namibia |
prolonged periods of drought |
| Nauru |
periodic droughts |
| Navassa Island |
NA |
| Nepal |
severe thunderstorms, flooding, landslides, drought, and famine depending on the timing, intensity, and duration of the summer monsoons |
| Netherlands |
flooding |
| Netherlands Antilles |
Curacao and Bonaire are south of Caribbean hurricane belt and are rarely threatened; Sint Maarten, Saba, and Sint Eustatius are subject to hurricanes from July to October |
| New Caledonia |
cyclones, most frequent from November to March |
| New Zealand |
earthquakes are common, though usually not severe; volcanic activity |
| Nicaragua |
destructive earthquakes, volcanoes, landslides; extremely susceptible to hurricanes |
| Niger |
recurring droughts |
| Nigeria |
periodic droughts; flooding |
| Niue |
typhoons |
| Norfolk Island |
typhoons (especially May to July) |
| Northern Mariana Islands |
active volcanoes on Pagan and Agrihan; typhoons (especially August to November) |
| Norway |
rockslides, avalanches |
| Oman |
summer winds often raise large sandstorms and dust storms in interior; periodic droughts |
| Pacific Ocean |
surrounded by a zone of violent volcanic and earthquake activity sometimes referred to as the "Pacific Ring of Fire"; subject to tropical cyclones (typhoons) in southeast and east Asia from May to December (most frequent from July to October); tropical cyclones (hurricanes) may form south of Mexico and strike Central America and Mexico from June to October (most common in August and September); cyclical El Nino/La Nina phenomenon occurs in the equatorial Pacific, influencing weather in the Western Hemisphere and the western Pacific; ships subject to superstructure icing in extreme north from October to May; persistent fog in the northern Pacific can be a maritime hazard from June to December |
| Pakistan |
frequent earthquakes, occasionally severe especially in north and west; flooding along the Indus after heavy rains (July and August) |
| Palau |
typhoons (June to December) |
| Palmyra Atoll |
NA |
| Panama |
occasional severe storms and forest fires in the Darien area |
| Papua New Guinea |
active volcanism; situated along the Pacific "Ring of Fire"; the country is subject to frequent and sometimes severe earthquakes; mud slides; tsunamis |
| Paracel Islands |
typhoons |
| Paraguay |
local flooding in southeast (early September to June); poorly drained plains may become boggy (early October to June) |
| Peru |
earthquakes, tsunamis, flooding, landslides, mild volcanic activity |
| Philippines |
astride typhoon belt, usually affected by 15 and struck by five to six cyclonic storms per year; landslides; active volcanoes; destructive earthquakes; tsunamis |
| Pitcairn Islands |
typhoons (especially November to March) |
| Poland |
flooding |
| Portugal |
Azores subject to severe earthquakes |
| Puerto Rico |
periodic droughts; hurricanes |
| Qatar |
haze, dust storms, sandstorms common |
| Reunion |
periodic, devastating cyclones (December to April); Piton de la Fournaise on the southeastern coast is an active volcano |
| Romania |
earthquakes, most severe in south and southwest; geologic structure and climate promote landslides |
| Russia |
permafrost over much of Siberia is a major impediment to development; volcanic activity in the Kuril Islands; volcanoes and earthquakes on the Kamchatka Peninsula; spring floods and summer/autumn forest fires throughout Siberia and parts of European Russia |
| Rwanda |
periodic droughts; the volcanic Virunga mountains are in the northwest along the border with Democratic Republic of the Congo |
| Saint Helena |
active volcanism on Tristan da Cunha |
| Saint Kitts and Nevis |
hurricanes (July to October) |
| Saint Lucia |
hurricanes and volcanic activity |
| Saint Pierre and Miquelon |
persistent fog throughout the year can be a maritime hazard |
| Saint Vincent and the Grenadines |
hurricanes; Soufriere volcano on the island of Saint Vincent is a constant threat |
| Samoa |
occasional typhoons; active volcanism |
| San Marino |
NA |
| Sao Tome and Principe |
NA |
| Saudi Arabia |
frequent sand and dust storms |
| Senegal |
lowlands seasonally flooded; periodic droughts |
| Serbia and Montenegro |
destructive earthquakes |
| Seychelles |
lies outside the cyclone belt, so severe storms are rare; short droughts possible |
| Sierra Leone |
dry, sand-laden harmattan winds blow from the Sahara (December to February); sandstorms, dust storms |
| Singapore |
NA |
| Slovakia |
NA |
| Slovenia |
flooding and earthquakes |
| Solomon Islands |
typhoons, but rarely destructive; geologically active region with frequent earth tremors; volcanic activity |
| Somalia |
recurring droughts; frequent dust storms over eastern plains in summer; floods during rainy season |
| South Africa |
prolonged droughts |
| South Georgia and the South Sandwich Islands |
the South Sandwich Islands have prevailing weather conditions that generally make them difficult to approach by ship; they are also subject to active volcanism |
| Southern Ocean |
huge icebergs with drafts up to several hundred meters; smaller bergs and iceberg fragments; sea ice (generally 0.5 to 1 meter thick) with sometimes dynamic short-term variations and with large annual and interannual variations; deep continental shelf floored by glacial deposits varying widely over short distances; high winds and large waves much of the year; ship icing, especially May-October; most of region is remote from sources of search and rescue |
| Spain |
periodic droughts |
| Spratly Islands |
typhoons; serious maritime hazard because of numerous reefs and shoals |
| Sri Lanka |
occasional cyclones and tornadoes |
| Sudan |
dust storms and periodic persistent droughts |
| Suriname |
NA |
| Svalbard |
ice floes often block the entrance to Bellsund (a transit point for coal export) on the west coast and occasionally make parts of the northeastern coast inaccessible to maritime traffic |
| Swaziland |
drought |
| Sweden |
ice floes in the surrounding waters, especially in the Gulf of Bothnia, can interfere with maritime traffic |
| Switzerland |
avalanches, landslides, flash floods |
| Syria |
dust storms, sandstorms |
| Taiwan |
earthquakes and typhoons |
| Tajikistan |
earthquakes and floods |
| Tanzania |
flooding on the central plateau during the rainy season; drought |
| Thailand |
land subsidence in Bangkok area resulting from the depletion of the water table; droughts |
| Togo |
hot, dry harmattan wind can reduce visibility in north during winter; periodic droughts |
| Tokelau |
lies in Pacific typhoon belt |
| Tonga |
cyclones (October to April); earthquakes and volcanic activity on Fonuafo'ou |
| Trinidad and Tobago |
outside usual path of hurricanes and other tropical storms |
| Tromelin Island |
NA |
| Tunisia |
NA |
| Turkey |
very severe earthquakes, especially in northern Turkey, along an arc extending from the Sea of Marmara to Lake Van |
| Turkmenistan |
NA |
| Turks and Caicos Islands |
frequent hurricanes |
| Tuvalu |
severe tropical storms are usually rare, but, in 1997, there were three cyclones; low level of islands make them very sensitive to changes in sea level |
| Uganda |
NA |
| Ukraine |
NA |
| United Arab Emirates |
frequent sand and dust storms |
| United Kingdom |
winter windstorms; floods |
| United States |
tsunamis, volcanoes, and earthquake activity around Pacific Basin; hurricanes along the Atlantic and Gulf of Mexico coasts; tornadoes in the midwest and southeast; mud slides in California; forest fires in the west; flooding; permafrost in northern Alaska, a major impediment to development |
| Uruguay |
seasonally high winds (the pampero is a chilly and occasional violent wind which blows north from the Argentine pampas), droughts, floods; because of the absence of mountains, which act as weather barriers, all locations are particularly vulnerable to rapid changes from weather fronts |
| Uzbekistan |
NA |
| Vanuatu |
tropical cyclones or typhoons (January to April); volcanism causes minor earthquakes; tsunamis |
| Venezuela |
subject to floods, rockslides, mudslides; periodic droughts |
| Vietnam |
occasional typhoons (May to January) with extensive flooding, especially in the Mekong River delta |
| Virgin Islands |
several hurricanes in recent years; frequent and severe droughts and floods; occasional earthquakes |
| Wake Island |
occasional typhoons |
| Wallis and Futuna |
NA |
| West Bank |
droughts |
| Western Sahara |
hot, dry, dust/sand-laden sirocco wind can occur during winter and spring; widespread harmattan haze exists 60% of time, often severely restricting visibility |
| World |
large areas subject to severe weather (tropical cyclones), natural disasters (earthquakes, landslides, tsunamis, volcanic eruptions) |
| Yemen |
sandstorms and dust storms in summer |
| Zambia |
periodic drought, tropical storms (November to April) |
| Zimbabwe |
recurring droughts; floods and severe storms are rare |