UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042712.upa.cvt Date: 1200Z 27 APR 25 Searching for U3921... Searching the city database file for: U3921 ... Date:1200Z 27 APR 25 Station: U3921 WMO ident: 23921 Latitude: 60.68 Longitude: 60.43 ------------------------------------------------------------------------------- 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 35 190 3 SFC 993 92 4.4 3.4 93 1.0 3.9 190 3 278.1 278.9 277.4 291.5 4.92 2 925 667 1.2 -0.1 91 1.3 0.6 225 7 280.5 281.2 277.6 291.9 4.10 3 921 702 1.2 0.0 92 1.2 0.7 226 7 280.9 281.6 277.9 292.4 4.15 4 911 790 2.6 1.5 92 1.1 2.1 229 8 283.2 284.0 279.7 296.3 4.68 5 854 1311 1.0 -0.1 92 1.1 0.5 244 13 286.8 287.6 281.1 299.5 4.44 6 850 1349 1.2 0.1 92 1.1 0.7 245 13 287.4 288.2 281.5 300.3 4.53 7 810 1739 3.4 3.0 97 0.4 3.2 239 22 293.7 294.8 285.6 310.8 5.87 8 701 2898 -3.9 -6.2 84 2.3 -4.8 220 48 298.0 298.7 284.7 308.4 3.43 9 700 2909 -3.9 -6.2 84 2.3 -4.8 220 48 298.2 298.8 284.8 308.5 3.43 10 673 3220 -4.1 -6.2 85 2.1 -5.0 221 48 301.3 302.0 286.1 312.2 3.57 11 660 3373 -6.5 -9.5 79 3.0 -7.6 221 49 300.3 300.8 284.9 308.9 2.82 12 500 5490 -20.1 -26.1 59 6.0 -21.3 225 52 308.5 308.7 285.9 311.6 0.91 13 449 6276 -25.7 -33.7 47 8.0 -26.9 223 54 311.1 311.2 286.4 312.9 0.49 14 400 7100 -32.3 -40.3 45 8.0 -33.1 220 56 313.0 313.1 286.8 314.0 0.28 15 300 9060 -48.3 -58.3 31 10.0 -48.6 225 62 317.3 317.3 287.9 317.5 0.05 16 251 10205 -58.1 -69.1 23 11.0 -58.2 220 64 319.3 319.3 288.5 319.4 0.01 17 250 10230 -58.3 -69.3 23 11.0 -58.4 220 64 319.4 319.4 288.6 319.4 0.01 18 234 10645 -61.3 -72.3 22 11.0 -61.4 225 68 320.9 320.9 289.0 321.0 0.01 19 228 10807 -62.5 -73.5 21 11.0 -62.6 225 64 321.5 321.5 289.2 321.5 0.01 20 220 11030 -58.5 -69.5 23 11.0 -58.6 228 60 331.0 331.0 292.0 331.0 0.01 21 202 11576 -53.1 -64.1 25 11.0 -53.4 234 51 347.7 347.7 296.1 347.8 0.03 22 200 11640 -52.9 -63.9 25 11.0 -53.2 235 50 349.0 349.0 296.4 349.2 0.04 23 150 13500 -50.3 -64.3 18 14.0 -50.8 240 40 383.4 383.4 302.8 383.6 0.04 24 135 14188 -50.1 -65.1 15 15.0 -50.7 240 38 395.5 395.5 304.6 395.7 0.04 25 100 16140 -52.1 -69.1 11 17.0 -52.8 240 33 427.1 427.1 308.5 427.2 0.03 26 70 18450 -53.1 -71.1 9 18.0 -53.9 260 23 470.8 470.8 312.7 471.0 0.04 27 50 20610 -53.7 -72.7 8 19.0 -54.8 245 11 516.9 516.9 316.1 517.2 0.04 28 42 21726 -54.9 -73.9 8 19.0 -56.0 248 11 540.4 540.4 317.6 540.7 0.04 29 30 23880 -53.7 -73.7 7 20.0 -55.4 255 11 598.2 598.3 320.6 598.7 0.06 30 20 26490 -52.3 -71.3 8 19.0 -54.9 315 33 676.1 676.1 323.7 677.2 0.13 31 13 29297 -49.1 -68.1 9 19.0 -53.6 775.8 776.0 326.7 778.8 0.31 TRP 228 10807 -62.5 -73.5 21 11.0 -62.6 225 64 321.5 321.5 289.2 321.5 0.01 WND 234 10645 -61.3 -72.3 22 11.0 -61.4 225 68 320.9 320.9 289.0 321.0 0.01 Sounding variables and indices 1000-500 mb thick: 5455.00 m Freezing level: 759.23 mb = 2278.74 m = 7476.09 ft Wetbulb zero: 766.77 mb = 2178.82 m = 7148.29 ft Precipitable water: 0.75 inches Sfc-500 mean rel hum: 81.92 % Est. max temperature: 14.75 C = 58.55 F Sfc-Lift cond lev (LCL): 977.86 mb = 216.75 m = 711.11 ft T: 3.71 C 700-500 lapse rate: 6.28 C/km ThetaE index: 2.37 C Layer 701.0- 700.0 mb Conv cond level (CCL): 725.91 mb = 2617.81 m = 8588.51 ft Mean mixing ratio: 4.51 g/kg Conv temperature: 23.27 C = 73.88 F Cap Strength: 11.82 C Lifted Index: 13.92 C Risk: None Lifted Index @300 mb: 17.28 C Lifted Index @700 mb: 9.79 C Showalter Index: 8.65 C Risk: None Total Totals Index: 41.50 C Risk: None Vertical Totals Index: 21.30 C Cross Totals Index: 20.20 C K Index: 19.10 Risk: < 20 % chance of thunderstorms Sweat Index: 79.20 Risk: None Energy Index: 2.38 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 23.84 J/kg Max Up Vert Vel: 6.90 m/s Conv Inhibition (B-): 62793.96 J/kg Cap Strength: 13.74 C Lift Cond Lev (LCL): 925.35 mb = 663.91 m = 2178.14 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 254 at 28 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 ---------------------------------------------------------- 0 993 92 190 3 0.5 3.0 | 80 26 -25.9 -4.8 1 925 667 225 7 4.9 4.9 | 83 22 -21.5 -2.8 2 850 1349 245 13 11.8 5.5 | 81 15 -14.7 -2.2 3 700 2909 220 48 30.9 36.8 | 189 29 4.4 29.1 4 500 5490 225 52 36.8 36.8 | 200 31 10.3 29.1 5 400 7100 220 56 36.0 42.9 | 195 36 9.6 35.2 6 300 9060 225 62 43.8 43.8 | 206 40 17.4 36.1 7 250 10230 220 64 41.1 49.0 | 200 44 14.7 41.3 8 234 10645 225 68 48.1 48.1 | 208 46 21.6 40.4 9 228 10807 225 64 45.3 45.3 | 207 42 18.8 37.5 10 200 11640 235 50 41.0 28.7 | 215 26 14.5 21.0 11 150 13500 240 40 34.6 20.0 | 214 15 8.2 12.3 12 100 16140 240 33 28.6 16.5 | 194 9 2.1 8.8 13 70 18450 260 23 22.7 4.0 | 45 5 -3.8 -3.7 14 50 20610 245 11 10.0 4.6 | 79 17 -16.5 -3.1 15 30 23880 255 11 10.6 2.8 | 73 17 -15.8 -4.9 16 20 26490 315 33 23.3 -23.3 | 6 31 -3.1 -31.1 Wind Parameters Mean winds (0-6000m): 223.7 at 36.7 knts Storm direction: 253.7 at 27.5 knts Shear (0-3000m) pos: 2.9 neg: 5.4 tot: 8.3 10-3/s Storm rel Dir Shear (0-3000m): 109.8 deg Storm rel helicity (0-3000m) pos: 74.7 neg: -2.2 tot: 72.6 m^2/s^2 ave: 24.2 10^-3 m/s^2 rel: 0.43 Storm rel vorticity (0-3000m) horiz: 8.6 stream: 3.7 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 0.18 Bulk Shear: 136.19 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 ------------------------------------------------------------------------------- 500 213 5 81 24| 4.3 0.0 4.3| 9.6 0.0 9.6 19.2 0.33| 4.4 1.5 1000 225 7 82 22| 4.6 0.0 4.6| 11.5 -0.3 11.1 11.1 0.19| 4.8 0.9 1500 234 9 83 19| 5.7 0.0 5.7| 21.3 -2.2 19.2 12.8 0.25| 6.0 1.5 2000 235 13 89 16| 4.3 3.0 7.3| 46.4 -2.2 44.2 22.1 0.51| 7.5 3.9 2500 230 17 104 14| 3.4 4.9 8.3| 66.7 -2.2 64.5 25.8 0.49| 8.5 4.2 3000 226 22 125 13| 2.9 5.4 8.3| 74.7 -2.2 72.6 24.2 0.43| 8.6 3.7 4000 224 29 153 15| 2.4 4.1 6.5| 92.1 -2.2 89.9 22.5 0.46| 6.7 3.1 5000 224 33 168 17| 2.2 3.3 5.4|110.0 -2.2 107.8 21.6 0.48| 5.6 2.7 6000 224 37 177 19| 1.9 2.9 4.7|117.3 -9.9 107.4 17.9 0.45| 4.9 2.2 Wrote GIF file: /home/apache/climate/data/raob//U3921/skewt/U3921.skewt.20250427.12.gif