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 U3884... Searching the city database file for: U3884 ... Date:1200Z 18 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 24 270 3 SFC 996 56 -2.7 -6.3 76 3.6 -3.9 270 3 270.8 271.2 269.5 277.3 2.39 2 925 635 -8.1 -13.0 68 4.9 -9.4 265 11 271.0 271.3 268.2 275.3 1.52 3 865 1152 -12.9 -17.2 70 4.3 -13.8 273 11 271.3 271.5 267.7 274.5 1.15 4 850 1285 -13.7 -17.7 72 4.0 -14.6 275 11 271.8 272.0 268.0 275.0 1.12 5 700 2729 -24.9 -29.8 64 4.9 -25.5 255 15 274.9 275.0 268.8 276.3 0.46 6 674 3003 -27.1 -32.1 62 5.0 -27.6 249 16 275.4 275.5 269.1 276.6 0.38 7 575 4136 -31.5 -40.5 41 9.0 -32.1 226 19 283.1 283.1 273.3 283.7 0.19 8 561 4310 -32.1 -40.1 45 8.0 -32.7 222 19 284.4 284.4 274.0 285.1 0.21 9 500 5110 -38.9 -45.9 48 7.0 -39.2 205 21 285.6 285.6 274.6 286.0 0.13 10 437 6023 -45.9 -51.9 51 6.0 -46.1 193 25 288.0 288.0 275.7 288.2 0.07 11 400 6610 -49.1 -55.1 50 6.0 -49.3 185 27 291.2 291.2 277.3 291.4 0.05 12 366 7186 -52.7 -58.7 48 6.0 -52.8 180 23 293.9 293.9 278.6 294.0 0.04 13 336 7739 -50.1 -56.1 49 6.0 -50.3 191 23 304.7 304.7 283.4 304.9 0.06 14 300 8480 -47.9 -54.9 44 7.0 -48.1 205 23 317.8 317.9 288.1 318.1 0.07 15 291 8683 -46.3 -54.3 40 8.0 -46.6 205 23 322.9 322.9 289.8 323.2 0.08 16 250 9700 -45.5 -57.5 25 12.0 -46.0 205 21 338.4 338.4 294.0 338.7 0.06 17 200 11190 -44.9 -61.9 13 17.0 -45.6 220 25 361.7 361.7 299.1 361.9 0.05 18 199 11223 -45.1 -62.1 13 17.0 -45.8 220 25 361.9 361.9 299.1 362.1 0.05 19 150 13110 -45.1 -65.1 9 20.0 -46.1 225 27 392.3 392.4 304.2 392.5 0.04 20 148 13200 -44.9 -64.9 9 20.0 -45.9 225 27 394.2 394.2 304.4 394.4 0.04 21 100 15800 -48.5 -69.5 7 21.0 -49.5 235 13 434.0 434.0 309.3 434.2 0.03 22 70 18130 -50.3 -71.3 7 21.0 -51.5 225 21 476.8 476.8 313.2 477.0 0.04 23 53 19941 -50.1 -72.1 6 22.0 -51.6 233 18 516.7 516.7 316.1 517.0 0.04 24 50 20320 -50.5 -72.5 6 22.0 -52.1 235 17 524.5 524.5 316.6 524.7 0.04 25 37 22264 -54.9 -75.9 6 21.0 -56.2 560.3 560.3 318.7 560.6 0.03 TRP 366 7186 -52.7 -58.7 48 6.0 -52.8 180 23 293.9 293.9 278.6 294.0 0.04 WND Sounding variables and indices 1000-500 mb thick: 5086.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.17 inches Sfc-500 mean rel hum: 59.92 % Est. max temperature: -1.59 C = 29.15 F Sfc-Lift cond lev (LCL): 941.12 mb = 499.66 m = 1639.29 ft T: -6.84 C 700-500 lapse rate: 5.88 C/km ThetaE index: 2.77 C Layer 925.0- 850.0 mb Conv cond level (CCL): 881.76 mb = 1003.85 m = 3293.42 ft Mean mixing ratio: 1.79 g/kg Conv temperature: -2.25 C = 27.94 F Cap Strength: 7.72 C Lifted Index: 8.25 C Risk: None Lifted Index @300 mb: 29.72 C Lifted Index @700 mb: 0.86 C Showalter Index: 9.01 C Risk: None Total Totals Index: 46.40 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 25.20 C Cross Totals Index: 21.20 C K Index: 2.60 Risk: None Sweat Index: 43.00 Risk: None Energy Index: 2.28 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 1.26 J/kg Max Up Vert Vel: 1.59 m/s Conv Inhibition (B-): 41658.16 J/kg Cap Strength: 8.20 C Lift Cond Lev (LCL): 885.04 mb = 975.23 m = 3199.53 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 261 at 12 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 56 270 3 3.0 -0.0 | 78 9 -8.8 -1.8 1 925 635 265 11 11.0 1.0 | 44 1 -0.8 -0.9 2 850 1285 275 11 11.0 -1.0 | 17 3 -0.8 -2.8 3 700 2729 255 15 14.5 3.9 | 233 3 2.7 2.0 4 500 5110 205 21 8.9 19.0 | 170 17 -2.9 17.2 5 400 6610 185 27 2.4 26.9 | 159 27 -9.4 25.1 6 366 7186 180 23 0.0 23.0 | 151 24 -11.8 21.2 7 300 8480 205 23 9.7 20.8 | 174 19 -2.1 19.0 8 250 9700 205 21 8.9 19.0 | 170 17 -2.9 17.2 9 200 11190 220 25 16.1 19.2 | 194 18 4.3 17.3 10 150 13110 225 27 19.1 19.1 | 203 19 7.3 17.3 11 100 15800 235 13 10.6 7.5 | 168 6 -1.1 5.6 12 70 18130 225 21 14.8 14.8 | 193 13 3.1 13.0 13 50 20320 235 17 13.9 9.8 | 195 8 2.1 7.9 Wind Parameters Mean winds (0-6000m): 231.1 at 15.9 knts Storm direction: 261.1 at 11.9 knts Shear (0-3000m) pos: 0.3 neg: 2.2 tot: 2.4 10-3/s Storm rel Dir Shear (0-3000m): 137.3 deg Storm rel helicity (0-3000m) pos: 0.0 neg: -6.2 tot: -6.2 m^2/s^2 ave: -2.1 10^-3 m/s^2 rel: -0.48 Storm rel vorticity (0-3000m) horiz: 3.1 stream: -1.5 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.08 Bulk Shear: 16.83 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 ------------------------------------------------------------------------------- 500 266 6 75 6| 0.0 7.1 7.1| 0.0 -1.9 -1.9 -3.8 -0.20| 7.1 -1.4 1000 267 9 66 3| 0.8 3.6 4.3| 0.0 -2.4 -2.4 -2.4 -0.28| 4.7 -1.3 1500 270 10 52 3| 0.5 2.6 3.2| 0.0 -3.0 -3.0 -2.0 -0.31| 3.7 -1.2 2000 269 10 43 2| 0.4 2.4 2.8| 0.0 -3.7 -3.7 -1.9 -0.41| 3.3 -1.3 2500 266 11 35 1| 0.3 2.2 2.6| 0.0 -4.5 -4.5 -1.8 -0.46| 3.1 -1.4 3000 263 12 20 1| 0.3 2.2 2.4| 0.0 -6.2 -6.2 -2.1 -0.48| 3.1 -1.5 4000 255 13 206 2| 0.2 2.1 2.3| 0.0 -13.4 -13.4 -3.3 -0.49| 3.2 -1.5 5000 243 14 193 5| 0.2 2.1 2.3| 0.0 -29.1 -29.1 -5.8 -0.50| 3.3 -1.7 6000 231 16 184 8| 0.1 2.2 2.3| 0.0 -43.1 -43.1 -7.2 -0.48| 3.3 -1.6 Wrote GIF file: /home/apache/climate/data/raob//U3884/skewt/U3884.skewt.20250418.12.gif