When moving to Central Europe via the Russian continent during winter, the air mass encountered would be cold and dry, originating over a large landmass at high latitudes. This type of air mass is

Here are the solutions to the questions: 6. When moving to Central Europe via the Russian continent during winter, the air mass encountered would be cold and dry, originating over a large landmass at high latitudes. This type of air mass is known as Continental Polar air. a) Continental polar air - This matches the description. b) Continental tropical air - This would be warm and dry. c) Maritime tropical air - This would be warm and moist. d) Maritime polar air - This would be cold and moist. The correct option is a). a) Continental polar air 7. The passage of a warm front is characterized by a specific sequence of clouds as the front approaches and passes. This sequence typically starts with high clouds, followed by medium clouds, and then low clouds, often bringing continuous precipitation. a) Embedded cumulonimbus within dense nimbostratus - This describes a more unstable or occluded front. b) Cirrostratus, cirrocumulus, nimbostratus and finally cumulus - Cirrocumulus is less typical as a primary indicator, and cumulus is more associated with cold fronts or unstable air. c) Cirrus, cirrostratus, altostratus, nimbostratus and finally stratus - This is the classic sequence for a warm front: high clouds (Cirrus, Cirrostratus), then medium clouds (Altostratus), followed by low, rain-bearing clouds (Nimbostratus), and potentially Stratus. d) Nimbostratus, altostratus, cirrostratus and finally cirrus - This is in reverse order. The correct option is c). c) Cirrus, cirrostratus, altostratus, nimbostratus and finally stratus 8. Let's break down the METAR: HKEL 0430Z 30010 KT 4000 RA SCT010 CB BKN025 BKN070 20/19 Q101 RETS NOSIG. The visibility is indicated by the number "4000", which means 4000 meters or 4 kilometers. The temperature and dew point are given as "20/19". The first number, 20, is the air temperature in degrees Celsius. Therefore, the reported visibility is 4 km and the temperature is 20^. The correct option is a). a) 4 km and 20^ C 9. Thunderstorm activity requires unstable atmospheric conditions, moisture, and a lifting mechanism. a) A ridge of high pressure - Associated with stable, sinking air, which suppresses thunderstorm development. b) Stable anticyclonic conditions - Similar to a ridge of high pressure, these conditions are stable and not conducive to thunderstorms. c) The presence of mountain wave - Can cause turbulence but is not the primary cause of widespread thunderstorm activity. d) A cold front - Cold fronts are a common cause of thunderstorms because they force warm, moist air to rise rapidly, leading to instability and cloud development. The correct option is d). d) A cold front 10. A trend forecast (TREND) is a short-term forecast appended to a routine weather report (METAR) or a special weather report (SPECI). It describes expected significant changes in weather conditions over a short period. a) A landing forecast appended to METAR/SPECI, valid for 2 hours - This accurately describes a trend forecast. b) A route forecast valid for 24 hours - This describes a TAF (Terminal Aerodrome Forecast) or an area forecast. c) A routine report - This is a METAR itself, not a forecast. d) An aerodrome forecast valid for 9 hours - This describes a TAF. The correct option is a). a) A landing forecast appended to METAR/SPECI, valid for 2 hours 11. Frontal fog, particularly pre-frontal fog, is most likely to occur when warm, moist air is forced to rise over a colder air mass, leading to precipitation. If this precipitation falls through cooler air near the surface, it can saturate the air and cause fog. a) in summer in the early morning - More typical for radiation fog. b) at the rear of a warm front - While fog can occur, pre-frontal fog is a more classic example of frontal fog. c) in winter in the early morning - Could be radiation fog, but not specifically frontal fog. d) in advance of a warm front - This is a classic scenario for pre-frontal fog, where warm rain falls into cooler air ahead of the warm front, saturating it. The correct option is d). d) in advance of a warm front 12. In a METAR (Meteorological Aerodrome Report), specific identifiers are used to designate different weather phenomena. a) +SHRA - Heavy showers of rain. b) TS - Thunderstorm. c) SHRA - Showers of rain. This is the correct identifier for "showers of rain". d) +RA - Heavy rain. The correct option is c). c) SHRA That's 2 down. 3 left today — send the next one.