a) The center of low pressure is near Wausau, Wisconsin (See the L on the map),

Question

a) The center of low pressure is near Wausau, Wisconsin (See the L on the map), with a pressure of 994.7 mb (947 on the map). Note the wind flags around this center of low pressure. Do the wind flags at the various stations show counterclockwise winds, as you expect in a midlatitude cyclonic circulation?______________. (10 points)

b) The-high pressure center is located near Salmon, Idaho (See the H on the map), with a pressure of 1033.6 mb (336 on the map). You can find the pattern of air temperatures and even lower dew-point temperatures associated with a cold air mass centered in the region of high pressure.

2. On the weather map, draw in the isobars connecting points of equal air pressure, at 4mb intervals. (40 points)

a) The 996mb isobar around the low-pressure center is drawn for you.
b) Now draw in order of increasing pressure the rest of the isobars at 4mb intervals: 1000, 1004, 1008, 1012, 1016, 1020, 1024, and 1028, and label them. The highest value isobar of 1032 mb is drawn for you.

120 3 286 110 100 14 128 14 302 10 24174 -291 18 262 298, 1032 mb 34 994 30·148 281 10 14( 306 210295 13 36 054 28304 21 250 30 227 32 24 220 39 41947 32 32 270 32 310 25251 28205 7 251 16 O 270 10 315 52994 37 48040 D 298 27 215 103 43 229 25296 18 283 25 985 57 39 21 252 28 104 25 23 18 290 16 297 321 290 43 228 39 097 57118147 32 18 261 21 205 34 178 061 274 45 254 32 -45187 54182 57), 217 39210 49 274 25267 45151 34 204 39 163 64 080 1 A 231 36261 48 185 63 120 57 188 48 20 36 43 176 45 1 5516 -30 63117 57 50 54 152 45 240 3 70 104 63147 61 54 260 66 133 248 70 115 0 100 200 300 400ml 68244 0 100 200 300 400 km WEATHER MAP 73 099 10% 105 100

Explanation / Answer

a) Yes. The wind flags are in clockwise direction around the high pressure area. Counter clockwise winds are present near low pressure. This is common in northern hemisphere. Explanation : this is due to coriolis forces and earth's rotation, the direction of winds changes.

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