UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025041812.upa.cvt Date: 1200Z 18 APR 25 Searching for U9839... Searching the city database file for: U9839 ... Date:1200Z 18 APR 25 Station: U9839 WMO ident: 29839 Latitude: 53.50 Longitude: 83.83 ------------------------------------------------------------------------------- LEV PRES HGHT TEMP DEWP RH DD WETB DIR SPD THETA THE-V THE-W THE-E W mb m C C % C C deg knt K K K K g/kg ------------------------------------------------------------------------------- 0 1000 109 240 9 SFC 996 141 2.4 -7.6 48 10.0 -1.1 240 9 275.9 276.2 272.3 281.9 2.16 2 980 272 0.4 -3.9 73 4.3 -1.2 238 10 275.1 275.6 273.0 283.2 2.92 3 925 733 -1.9 -6.6 70 4.7 -3.6 230 13 277.4 277.8 273.7 284.4 2.52 4 901 942 -3.1 -8.1 68 5.0 -4.8 228 15 278.2 278.6 273.9 284.7 2.30 5 880 1128 -5.1 -10.1 68 5.0 -6.7 227 17 278.0 278.4 273.3 283.7 2.01 6 850 1399 -7.5 -11.4 74 3.9 -8.7 225 19 278.3 278.6 273.2 283.6 1.88 7 791 1954 -12.9 -14.1 91 1.2 -13.2 232 23 278.3 278.6 272.9 283.0 1.62 8 767 2188 -14.5 -15.2 94 0.7 -14.7 236 24 279.0 279.3 273.1 283.5 1.53 9 700 2874 -19.9 -22.3 81 2.4 -20.3 245 29 280.4 280.6 273.0 283.2 0.91 10 612 3855 -27.9 -30.6 78 2.7 -28.2 253 33 282.2 282.3 273.3 283.7 0.49 11 500 5280 -37.1 -43.1 54 6.0 -37.4 265 38 287.8 287.8 275.8 288.4 0.17 12 400 6780 -46.9 -53.9 45 7.0 -47.1 245 46 294.0 294.0 278.7 294.3 0.06 13 390 6948 -48.7 -56.7 39 8.0 -48.9 245 47 293.8 293.8 278.6 294.0 0.05 14 348 7697 -50.7 -58.7 38 8.0 -50.8 245 50 300.8 300.9 281.7 301.0 0.04 15 324 8165 -50.7 -60.7 30 10.0 -50.9 245 49 307.1 307.1 284.2 307.2 0.03 16 300 8670 -49.3 -63.3 18 14.0 -49.6 245 48 315.9 315.9 287.4 316.0 0.03 17 254 9774 -45.9 -68.9 6 23.0 -46.5 250 46 336.3 336.3 293.4 336.4 0.01 18 250 9880 -45.7 -68.7 6 23.0 -46.3 250 46 338.1 338.1 293.9 338.2 0.01 19 209 11075 -44.1 -68.1 5 24.0 -44.9 258 43 358.4 358.4 298.4 358.5 0.02 20 200 11370 -44.5 -69.5 5 25.0 -45.3 260 42 362.3 362.3 299.2 362.4 0.02 21 150 13290 -43.9 -67.9 5 24.0 -45.0 260 36 394.4 394.4 304.5 394.5 0.03 22 120 14783 -45.1 -69.1 5 24.0 -46.3 254 36 418.2 418.2 307.5 418.4 0.03 23 100 15990 -48.9 -72.9 4 24.0 -49.9 250 36 433.2 433.2 309.2 433.4 0.02 24 96 16257 -49.5 -73.5 4 24.0 -50.5 250 34 437.2 437.2 309.6 437.3 0.02 25 74 17956 -50.3 -74.3 4 24.0 -51.4 250 23 469.3 469.3 312.6 469.4 0.02 26 70 18320 -47.5 -72.5 4 25.0 -49.1 250 21 482.8 482.8 313.7 482.9 0.03 27 69 18415 -47.5 -72.5 4 25.0 -49.1 251 21 484.8 484.8 313.8 484.9 0.03 28 54 20020 -52.5 -74.5 5 22.0 -53.7 262 19 508.4 508.4 315.5 508.6 0.03 29 52 20265 -51.7 -75.7 4 24.0 -53.1 263 19 515.8 515.8 316.1 516.0 0.03 30 50 20520 -51.1 -75.1 4 24.0 -52.6 265 19 523.1 523.1 316.5 523.2 0.03 31 46 21065 -48.5 -73.5 4 25.0 -50.5 275 17 541.9 542.0 317.6 542.2 0.04 32 37 22482 -53.3 -77.3 4 24.0 -54.8 300 12 564.4 564.5 318.9 564.6 0.03 33 30 23840 -50.9 -74.9 4 24.0 -53.2 325 7 605.9 605.9 320.9 606.2 0.05 34 20 26480 -50.7 -74.7 4 24.0 -53.9 280 7 681.0 681.0 323.8 681.6 0.08 35 14 28794 -52.7 -76.7 4 24.0 -56.1 747.3 747.4 325.9 748.1 0.08 36 11 30359 -50.3 -73.3 5 23.0 -55.1 809.4 809.5 327.5 811.1 0.17 TRP 348 7697 -50.7 -58.7 38 8.0 -50.8 245 50 300.8 300.9 281.7 301.0 0.04 WND Sounding variables and indices 1000-500 mb thick: 5171.00 m Freezing level: 970.43 mb = 351.96 m = 1154.70 ft Wetbulb zero: Below ground Precipitable water: 0.28 inches Sfc-500 mean rel hum: 75.02 % Est. max temperature: 4.82 C = 40.68 F Sfc-Lift cond lev (LCL): 852.29 mb = 1377.93 m = 4520.71 ft T: -7.31 C 700-500 lapse rate: 7.15 C/km ThetaE index: 1.76 C Layer 880.0- 767.0 mb Conv cond level (CCL): 852.34 mb = 1377.46 m = 4519.16 ft Mean mixing ratio: 2.59 g/kg Conv temperature: 4.80 C = 40.64 F Cap Strength: 1.41 C Lifted Index: 3.84 C Risk: None Lifted Index @300 mb: 22.72 C Lifted Index @700 mb: -0.06 C Showalter Index: 3.95 C Risk: None Total Totals Index: 55.30 C Risk: Severe Thunderstorms probable Vertical Totals Index: 29.60 C Cross Totals Index: 25.70 C K Index: 15.80 Risk: < 20 % chance of thunderstorms Sweat Index: 307.35 Risk: Showers and thunderstorms possible Energy Index: 0.93 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 15.78 J/kg Max Up Vert Vel: 5.62 m/s Conv Inhibition (B-): 39.17 J/kg Cap Strength: 3.71 C Lift Cond Lev (LCL): 873.73 mb = 1183.58 m = 3883.10 ft Lev Free Conv (LFC): 798.73 mb = 1878.68 m = 6163.59 ft Equ Level (EL): 678.73 mb = 3099.32 m = 10168.26 ft B at Equ Level: 15.74 J/kg Max Parcel Lev (MPL): 578.73 mb = 4249.10 m = 13940.44 ft Wind level data Storm motion: 281 at 21 knt ---------------------------------------------------------- TRUE/GROUND REL | STORM REL LEV P H DIR SPD U V | DIR SPD U V mb m knt m/s | knt m/s ---------------------------------------------------------- 0 996 141 240 9 7.8 4.5 | 123 16 -13.1 8.4 1 925 733 230 13 10.0 8.4 | 138 16 -11.0 12.3 2 850 1399 225 19 13.4 13.4 | 157 19 -7.5 17.3 3 700 2874 245 29 26.3 12.3 | 198 17 5.4 16.2 4 500 5280 265 38 37.9 3.3 | 247 18 16.9 7.2 5 400 6780 245 46 41.7 19.4 | 222 31 20.8 23.3 6 348 7697 245 50 45.3 21.1 | 224 35 24.4 25.0 7 300 8670 245 48 43.5 20.3 | 223 33 22.6 24.2 8 250 9880 250 46 43.2 15.7 | 229 30 22.3 19.6 9 200 11370 260 42 41.4 7.3 | 241 23 20.4 11.2 10 150 13290 260 36 35.5 6.3 | 235 18 14.5 10.1 11 100 15990 250 36 33.8 12.3 | 219 21 12.9 16.2 12 70 18320 250 21 19.7 7.2 | 174 11 -1.2 11.1 13 50 20520 265 19 18.9 1.7 | 160 6 -2.0 5.6 14 30 23840 325 7 4.0 -5.7 | 84 17 -16.9 -1.8 15 20 26480 280 7 6.9 -1.2 | 101 14 -14.0 2.7 Wind Parameters Mean winds (0-6000m): 250.5 at 28.4 knts Storm direction: 280.5 at 21.3 knts Shear (0-3000m) pos: 2.7 neg: 1.4 tot: 4.1 10-3/s Storm rel Dir Shear (0-3000m): 80.9 deg Storm rel helicity (0-3000m) pos: 111.1 neg: 0.0 tot: 111.1 m^2/s^2 ave: 37.0 10^-3 m/s^2 rel: 0.97 Storm rel vorticity (0-3000m) horiz: 4.3 stream: 4.2 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 0.36 Bulk Shear: 44.41 m/s Storm Parameters ------------------------------------------------------------------------------- Depth Mean Inflow| Shear | Helicity | Vorticity AGL Dir Spd Dir Spd| Pos Neg Tot| Pos Neg Tot Ave Rel | Hor Strm m knt knt| 10^-3/s | m^2/s^2 m/s^2 | 10^-3/s ------------------------------------------------------------------------------- 500 235 11 129 16| 0.0 3.8 3.8| 15.2 0.0 15.2 30.4 0.98| 3.8 3.8 1000 231 13 137 16| 0.0 4.2 4.2| 33.9 0.0 33.9 33.9 0.96| 4.2 4.0 1500 229 15 144 17| 1.4 2.8 4.2| 53.3 0.0 53.3 35.5 0.95| 4.3 4.1 2000 230 17 151 17| 2.0 2.1 4.1| 73.5 0.0 73.5 36.7 0.96| 4.3 4.1 2500 233 18 158 16| 2.5 1.7 4.2| 94.3 0.0 94.3 37.7 0.96| 4.4 4.2 3000 236 20 165 16| 2.7 1.4 4.1|111.1 0.0 111.1 37.0 0.97| 4.3 4.2 4000 242 23 178 15| 2.7 1.1 3.7|137.6 0.0 137.6 34.4 0.97| 4.0 3.9 5000 247 26 192 14| 2.7 0.8 3.5|166.7 0.0 166.7 33.3 0.98| 3.9 3.8 6000 251 28 204 15| 2.2 1.5 3.7|169.8 -33.3 136.5 22.7 0.66| 4.1 2.7 Wrote GIF file: /home/apache/climate/data/raob//U9839/skewt/U9839.skewt.20250418.12.gif