UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025041712.upa.cvt Date: 1200Z 17 APR 25 Searching for U3884... Searching the city database file for: U3884 ... Date:1200Z 17 APR 25 Station: U3884 WMO ident: 23884 Latitude: 61.60 Longitude: 90.00 ------------------------------------------------------------------------------- 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 -107 SFC 980 56 2.0 0.3 88 1.7 1.3 250 3 276.7 277.4 275.5 287.7 3.98 2 966 173 3.0 0.8 85 2.2 2.0 244 7 278.9 279.6 276.9 290.5 4.19 3 925 523 1.0 -1.9 81 2.9 -0.2 225 21 280.3 280.9 276.8 290.4 3.59 4 850 1199 -2.3 -4.9 82 2.6 -3.3 210 35 283.7 284.3 278.0 292.6 3.12 5 744 2244 -8.3 -11.3 79 3.0 -9.2 217 40 288.2 288.6 278.9 294.6 2.16 6 700 2714 -12.3 -15.5 77 3.2 -13.2 220 42 288.9 289.2 278.5 293.8 1.63 7 500 5200 -30.5 -35.5 62 5.0 -31.0 215 50 295.9 295.9 280.0 297.1 0.37 8 480 5488 -32.5 -37.5 61 5.0 -33.0 217 50 296.9 296.9 280.4 297.9 0.32 9 402 6707 -43.9 -48.8 58 4.9 -44.1 225 48 297.5 297.5 280.4 297.9 0.11 10 400 6740 -43.9 -48.8 58 4.9 -44.1 225 48 297.9 298.0 280.6 298.3 0.11 11 317 8279 -47.8 -55.2 42 7.4 -48.0 220 68 313.0 313.0 286.5 313.3 0.07 12 300 8640 -48.7 -56.7 39 8.0 -48.9 215 58 316.7 316.7 287.8 316.9 0.06 13 289 8886 -50.5 -58.5 38 8.0 -50.7 215 64 317.5 317.6 288.0 317.7 0.05 14 270 9333 -50.1 -59.1 34 9.0 -50.3 220 58 324.4 324.4 290.2 324.6 0.05 15 250 9840 -48.9 -58.9 30 10.0 -49.2 225 52 333.4 333.4 292.7 333.6 0.05 16 214 10857 -49.5 -59.5 30 10.0 -49.8 232 44 347.6 347.6 296.1 347.8 0.06 17 200 11300 -48.1 -59.1 27 11.0 -48.6 235 40 356.6 356.6 298.1 356.9 0.07 18 181 11959 -46.9 -58.9 24 12.0 -47.4 238 39 368.9 368.9 300.4 369.2 0.07 19 150 13200 -48.3 -60.3 24 12.0 -48.9 245 36 386.8 386.9 303.3 387.2 0.08 20 117 14826 -50.7 -62.7 23 12.0 -51.3 251 32 410.9 410.9 306.7 411.3 0.07 21 100 15850 -49.9 -61.9 23 12.0 -50.6 255 29 431.3 431.3 309.0 431.8 0.09 22 70 18180 -50.3 -62.3 23 12.0 -51.2 270 23 476.8 476.8 313.2 477.5 0.13 23 50 20350 -53.3 -65.3 22 12.0 -54.2 270 15 517.9 517.9 316.2 518.6 0.12 24 30 23640 -53.9 -65.9 22 12.0 -55.3 320 19 597.7 597.8 320.6 599.0 0.18 25 23 25354 -52.7 -64.7 22 12.0 -54.6 271 16 648.4 648.5 322.7 650.7 0.28 26 20 26250 -56.3 -68.3 21 12.0 -57.8 245 15 663.8 663.9 323.3 665.5 0.19 27 19 26576 -56.7 -68.7 21 12.0 -58.2 672.4 672.5 323.6 674.0 0.19 28 15 28090 -52.1 -64.1 22 12.0 -54.8 734.7 734.9 325.6 739.0 0.46 29 13 29013 -53.9 -65.9 22 12.0 -56.5 759.2 759.4 326.3 763.1 0.42 TRP 289 8886 -50.5 -58.5 38 8.0 -50.7 215 64 317.5 317.6 288.0 317.7 0.05 WND 317 8279 -47.8 -55.2 42 7.4 -48.0 220 68 313.0 313.0 286.5 313.3 0.07 Sounding variables and indices 1000-500 mb thick: 5307.00 m Freezing level: 902.27 mb = 727.85 m = 2387.93 ft Wetbulb zero: 928.95 mb = 488.56 m = 1602.88 ft Precipitable water: 0.44 inches Sfc-500 mean rel hum: 75.13 % Est. max temperature: 9.75 C = 49.56 F Sfc-Lift cond lev (LCL): 954.39 mb = 270.36 m = 887.01 ft T: 2.44 C 700-500 lapse rate: 7.32 C/km ThetaE index: 0.85 C Layer 700.0- 500.0 mb Conv cond level (CCL): 841.72 mb = 1275.85 m = 4185.79 ft Mean mixing ratio: 3.71 g/kg Conv temperature: 9.28 C = 48.71 F Cap Strength: 3.46 C Lifted Index: 5.34 C Risk: None Lifted Index @300 mb: 18.60 C Lifted Index @700 mb: 2.97 C Showalter Index: 3.76 C Risk: None Total Totals Index: 53.80 C Risk: Scattered heavy thunderstorms Vertical Totals Index: 28.20 C Cross Totals Index: 25.60 C K Index: 20.10 Risk: 20-40 % chance of thunderstorms Sweat Index: 251.89 Risk: None Energy Index: 0.92 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 16.58 J/kg Max Up Vert Vel: 5.76 m/s Conv Inhibition (B-): 53550.21 J/kg Cap Strength: 5.30 C Lift Cond Lev (LCL): 892.33 mb = 810.43 m = 2658.85 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 247 at 30 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 ---------------------------------------------------------- 0 980 56 250 3 2.8 1.0 | 67 27 -25.0 -10.8 1 925 523 225 21 14.8 14.8 | 103 13 -13.0 3.1 2 850 1199 210 35 17.5 30.3 | 151 21 -10.3 18.5 3 700 2714 220 42 27.0 32.2 | 178 20 -0.8 20.4 4 500 5200 215 50 28.7 41.0 | 182 29 0.9 29.2 5 400 6740 225 48 33.9 33.9 | 195 23 6.1 22.2 6 317 8279 220 68 43.7 52.1 | 202 43 15.9 40.3 7 300 8640 215 58 33.3 47.5 | 189 36 5.5 35.7 8 289 8886 215 64 36.7 52.4 | 192 42 8.9 40.6 9 250 9840 225 52 36.8 36.8 | 200 27 9.0 25.0 10 200 11300 235 40 32.8 22.9 | 204 12 5.0 11.2 11 150 13200 245 36 32.6 15.2 | 234 6 4.8 3.4 12 100 15850 255 29 28.0 7.5 | 357 4 0.2 -4.3 13 70 18180 270 23 23.0 -0.0 | 22 13 -4.8 -11.8 14 50 20350 270 15 15.0 -0.0 | 47 17 -12.8 -11.8 15 30 23640 320 19 12.2 -14.6 | 31 31 -15.6 -26.3 16 20 26250 245 15 13.6 6.3 | 69 15 -14.2 -5.4 Wind Parameters Mean winds (0-6000m): 217.0 at 40.3 knts Storm direction: 247.0 at 30.2 knts Shear (0-3000m) pos: 1.4 neg: 5.9 tot: 7.3 10-3/s Storm rel Dir Shear (0-3000m): 111.9 deg Storm rel helicity (0-3000m) pos: 149.8 neg: 0.0 tot: 149.8 m^2/s^2 ave: 49.9 10^-3 m/s^2 rel: 0.72 Storm rel vorticity (0-3000m) horiz: 7.8 stream: 5.6 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 0.16 Bulk Shear: 103.53 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 ------------------------------------------------------------------------------- 500 228 13 80 19| 0.0 19.6 19.6| 47.6 0.0 47.6 95.2 0.56| 20.2 11.4 1000 221 20 102 15| 0.0 15.3 15.3| 85.8 0.0 85.8 85.8 0.67| 16.1 10.8 1500 216 25 122 16| 0.0 11.8 11.8|107.2 0.0 107.2 71.5 0.68| 12.6 8.6 2000 215 28 134 16| 0.8 8.8 9.6|124.5 0.0 124.5 62.3 0.70| 10.3 7.2 2500 216 31 143 16| 1.3 7.1 8.4|142.2 0.0 142.2 56.9 0.73| 8.9 6.5 3000 217 33 150 17| 1.4 5.9 7.3|149.8 0.0 149.8 49.9 0.72| 7.8 5.6 4000 217 36 159 18| 1.0 4.9 5.9|154.6 0.0 154.6 38.6 0.69| 6.3 4.3 5000 217 38 166 19| 0.8 4.2 5.1|157.9 0.0 157.9 31.6 0.65| 5.4 3.5 6000 217 40 170 21| 0.9 3.5 4.5|183.3 0.0 183.3 30.5 0.65| 5.0 3.2 Wrote GIF file: /home/apache/climate/data/raob//U3884/skewt/U3884.skewt.20250417.12.gif