Question

Surface Station Model (9 points): Plot the following weather data, from Republic Airport in Farmingdale, NY at 19:53 Z (3:53 PM EDT) on 03 May 2001, onto the surface station

model below. Temperature (T) = 82°F Dew Point Temperature (Td) = 57°F Wind speed = 10 knots Wind direction = Northeast or 45° pressure 1020.3 mb Sea level Pressure change = 2.3 mb Pressure Tendency = SSR Visibility = 8 miles Sky Coverage Total = 0/8 Present weather = None = o Pressure Conversion (2 Points): You must show all of your work in the space provided in order to receive full credit for this problem. Round your final answer so that there is only one digit after the decimal point. Circle your final answer along with its appropriate unit. Conversion Factor: 1 in.of Hg = 33.86395 millibars Convert the pressure of 30.07 inches of mercury into millibar's: Decoding a METAR Report (1Point each): Given the following METAR report: KLGA 170851Z 18010G25KT 1/4SM +RA OVC080 07/07 A2993 RMK P0014 Use the METAR Abbreviations Table to decode the following information from the METAR report above. Be sure to include the proper unit, if necessary, as a part of your answer. Failure to write down the proper unit, when necessary, will cause you to get that problem wrong. Write the letters "N/A" if the requested information was not present in the METAR code. Leaving a question blank will cause you to get that question wrong. 1. Country in which the observation was taken 2. Location at which the observation was taken 3. Day of the month the observation was taken 4. Time of the observation in Eastern Standard Time (EST) 5. Temperature_ 6. Dew-Point Temperature_ 7. Air Pressure 8. Present Weather 9. Wind Direction 10. Sustained Wind Speed_ 11. Wind Gusts 12. Cloud Height: Low 13. Cloud Coverage: Low_ 14. Visibility 15. Amount of liquid precipitation in the last hour Middle Middle High High Code + (no symbol) ACC A02 AO1 AUTO B BKN BL BR CA CB CBMAM сс CG CIG CLR CONS DR DS DSIPTG DSNT DU DZ FC FEW FG FRQ FROPA FT FU FZ G GR GS HZ IC INCRG INTMT KT LTG M MOV N NE NW OCNL Meaning heavy intensity moderate intensity light intensity altocumulus castellans automated w/ precipitation discriminator automated w/o precipitation discriminator fully automated report began broken clouds (5/8-7/8 coverage) blowing mist cloud-air lightning cumulonimbus cloud cumulonimbus mammatus cloud-cloud lightning cloud-ground lightning ceiling clear (no clouds) continuous drifting dust storm dissipating distant widespread dust drizzle east or ended funnel cloud few clouds (0 - 2/8 coverage) fog frequent frontal passage feet smoke freezing gust hail small hail or snow pellets haze ice crystals or in-cloud lightning increasing intermittent knots lightning minus, less than moving north northeast northwest occasional Code OHD OVC OVR PCPN PE/PL PK WND PNO PO PRES PRESFR PRESRR PY RA RVR S SA SCT SE SFC SG SH SK SLP SLPNO SM SN SNINCR SP SQ SS SW TCU TS TSNO TWR UNKN UP UTC V VC VIS VR VRB VV W WND WSHFT Z Meaning overhead overcast (8/8 coverage) over precipitation ice pellets peak wind precipitation amount N/A dust/sand whirls pressure pressure falling rapidly pressure rising rapidly spray rain runway visual range south sand scattered clouds (3/8-4/8 coverage) southeast surface snow grains shower sky clear level pressure sea sea level pressure N/A statute miles snow snow increasing rapidly snow pellets squall sandstorm snow shower or southwest towering cumulus thunderstorm thunderstorm info N/A tower unknown unknown precipitation Universal Time Code variable in the vicinity visibility visual range variable vertical visibility west wind wind shift Zulu Time Isotherms (10 Points): On the following map, draw all possible isotherms as you were taught in lab. Use the proper color, proper increment and label your lines. The little black dots are the exact location of the temperature reading. If you are unable to read the temperature value please ask your instructor for clarification. 05 OCT 2000 Temperatures 48 54 64 46 38 50 34 31 25 26 47 67 24 25 18 49 26 34 28 44 20 49 54 Be 44 47 9 28 20 21 27 3 36 39 33 46 32 44 46 55 53 64 51 70 30 53 57 59 76 73 28 44 61 46 50 61 69 48 52 64 33 56 . 9 66 36 62 48 5 34 54 57 36 66 67 34 69 31 63 66 15 55 64 66 68 487 76 Z سپر Isobars (20 Points): On the following map, decode the pressure values and draw all possible isobars as you were taught in lab. Be sure you use the proper color, proper increment and label your lines. Then find and label one LOW pressure system and two HIGH pressure systems. There maybe another low in Canada, but this low is weaker and not the main low pressure system on the map. Make sure you give the high and low pressure areas their proper symbols with its appropriate color. The little black dots under each pressure value mark the exact location of the pressure reading. If you are unable to read the coded 3-digit pressure value please ask your instructor for clarification. If the pressure value only consists of two numbers then assume the last number is zero. 12 OCT 2000 221 ¹215 206 212 204 13 182 186 215 194 143 157 161 197 188 172 170 164 (65 170 158 183 162 169 171 156 147 191 158 153 154 132 134 133 141 195 150 133 119 137 102 060 972 Pressures 186 128 083 149 OYT 082 129 144 155 153 164 110 101 136 167 202 136 202 148 87 1.99 211 217 200 43 164 175 238 19 20 238 131 249 259 230 241 258 803 101 249 174 134 260 272 263 275 276 082 241 289 250¹ 123 126 247 281 296 261 252 VEI 223 238 265 254 X15 236 241 250 1,59 (70 259 204 1681 195 186 C

Fig: 1