UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025041700.upa.cvt Date: 0000Z 17 APR 25 Searching for U9231... Searching the city database file for: U9231 ... Date:0000Z 17 APR 25 Station: U9231 WMO ident: 29231 Latitude: 58.30 Longitude: 82.88 ------------------------------------------------------------------------------- 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 -51 SFC 985 73 6.4 -2.6 53 9.0 2.7 200 5 280.8 281.3 276.5 289.8 3.20 2 925 587 4.4 -2.6 60 7.0 1.4 210 9 283.8 284.4 278.4 293.5 3.41 3 924 596 4.2 -2.8 60 7.0 1.3 210 9 283.7 284.3 278.3 293.3 3.36 4 870 1086 4.2 -2.8 60 7.0 1.2 217 16 288.6 289.2 280.9 299.0 3.57 5 850 1275 2.6 -4.4 60 7.0 -0.3 220 19 288.9 289.4 280.6 298.3 3.24 6 776 2002 -4.1 -5.1 93 1.0 -4.5 227 26 289.3 289.9 280.9 299.1 3.37 7 700 2807 -9.1 -11.8 81 2.7 -10.0 235 33 292.4 292.8 280.9 299.0 2.21 8 646 3423 -13.5 -17.6 71 4.1 -14.6 236 38 294.2 294.5 280.8 298.8 1.48 9 556 4551 -19.7 -25.7 59 6.0 -20.8 238 46 299.8 299.9 282.4 302.5 0.85 10 500 5330 -25.5 -31.5 57 6.0 -26.3 240 52 301.9 302.0 282.9 303.8 0.55 11 427 6456 -33.9 -44.9 32 11.0 -34.7 240 60 305.2 305.2 283.7 305.8 0.16 12 400 6910 -37.5 -48.5 31 11.0 -38.1 240 64 306.3 306.3 284.1 306.7 0.12 13 341 7989 -46.9 -57.9 27 11.0 -47.2 240 67 307.8 307.8 284.5 307.9 0.05 14 300 8830 -51.3 -62.3 26 11.0 -51.5 240 69 313.0 313.0 286.4 313.2 0.03 15 274 9415 -54.2 -65.2 25 11.0 -54.4 240 75 317.0 317.0 287.8 317.1 0.02 16 262 9701 -55.7 -66.7 24 11.0 -55.8 240 73 319.0 319.0 288.4 319.0 0.02 17 250 10000 -54.9 -66.9 21 12.0 -55.1 250 68 324.4 324.5 290.1 324.5 0.02 18 220 10825 -50.3 -66.3 13 16.0 -50.7 253 63 343.6 343.6 295.2 343.7 0.02 19 200 11450 -48.1 -68.1 8 20.0 -48.7 255 60 356.6 356.6 298.0 356.7 0.02 20 192 11720 -47.3 -69.3 6 22.0 -47.9 256 59 362.1 362.1 299.1 362.2 0.02 21 150 13350 -48.1 -71.1 5 23.0 -48.8 265 50 387.2 387.2 303.4 387.3 0.02 22 100 16010 -49.7 -72.7 5 23.0 -50.6 270 42 431.7 431.7 309.0 431.8 0.02 23 88 16849 -49.7 -72.7 5 23.0 -50.7 277 40 447.8 447.8 310.7 447.9 0.02 24 70 18350 -50.1 -73.1 5 23.0 -51.3 290 36 477.2 477.2 313.2 477.4 0.03 25 50 20540 -50.7 -74.7 4 24.0 -52.2 315 25 524.0 524.0 316.6 524.2 0.03 26 42 21677 -51.5 -75.5 4 24.0 -53.1 325 22 548.8 548.8 318.1 549.0 0.03 27 34 23059 -49.5 -74.5 4 25.0 -51.9 338 17 588.3 588.3 320.1 588.6 0.05 28 30 23880 -49.9 -73.9 4 24.0 -52.4 345 15 608.6 608.6 321.0 609.0 0.06 29 23 25612 -51.3 -75.3 4 24.0 -54.0 5 12 652.5 652.6 322.8 653.0 0.06 30 20 26520 -51.1 -75.1 4 24.0 -54.2 15 11 679.8 679.8 323.8 680.4 0.07 31 16 27977 -48.9 -72.9 4 24.0 -53.1 20 13 731.7 731.8 325.4 732.9 0.13 32 12 29852 -51.9 -74.9 5 23.0 -55.9 26 15 783.9 783.9 326.8 785.0 0.12 33 10 31040 -49.3 -73.3 4 24.0 -54.8 30 17 835.5 835.6 328.1 837.5 0.19 34 7.4 33028 -46.1 -71.1 4 25.0 -54.1 923.7 923.9 329.9 927.7 0.35 TRP 262 9701 -55.7 -66.7 24 11.0 -55.8 240 73 319.0 319.0 288.4 319.0 0.02 WND 274 9415 -54.2 -65.2 25 11.0 -54.4 240 75 317.0 317.0 287.8 317.1 0.02 Sounding variables and indices 1000-500 mb thick: 5381.00 m Freezing level: 821.28 mb = 1557.12 m = 5108.60 ft Wetbulb zero: 854.44 mb = 1232.69 m = 4044.21 ft Precipitable water: 0.48 inches Sfc-500 mean rel hum: 68.64 % Est. max temperature: 14.57 C = 58.22 F Sfc-Lift cond lev (LCL): 857.48 mb = 1203.88 m = 3949.68 ft T: 3.20 C 700-500 lapse rate: 6.50 C/km ThetaE index: 0.66 C Layer 850.0- 776.0 mb Conv cond level (CCL): 753.14 mb = 2235.53 m = 7334.31 ft Mean mixing ratio: 3.36 g/kg Conv temperature: 15.80 C = 60.44 F Cap Strength: 7.58 C Lifted Index: 8.41 C Risk: None Lifted Index @300 mb: 14.19 C Lifted Index @700 mb: 4.47 C Showalter Index: 4.66 C Risk: None Total Totals Index: 49.20 C Risk: Scattered heavy thunderstorms Vertical Totals Index: 28.10 C Cross Totals Index: 21.10 C K Index: 21.00 Risk: 20-40 % chance of thunderstorms Sweat Index: 161.75 Risk: None Energy Index: 1.10 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 23.28 J/kg Max Up Vert Vel: 6.82 m/s Conv Inhibition (B-): 74236.91 J/kg Cap Strength: 8.43 C Lift Cond Lev (LCL): 830.18 mb = 1463.32 m = 4800.87 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 265 at 25 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 ---------------------------------------------------------- 0 985 73 200 5 1.7 4.7 | 96 24 -23.7 2.7 1 925 587 210 9 4.5 7.8 | 105 22 -20.9 5.7 2 850 1275 220 19 12.2 14.6 | 133 18 -13.2 12.5 3 700 2807 235 33 27.0 18.9 | 186 17 1.6 16.9 4 500 5330 240 52 45.0 26.0 | 219 31 19.6 24.0 5 400 6910 240 64 55.4 32.0 | 225 42 30.0 30.0 6 300 8830 240 69 59.8 34.5 | 227 47 34.4 32.5 7 274 9415 240 75 65.0 37.5 | 228 53 39.6 35.5 8 262 9701 240 73 63.2 36.5 | 228 51 37.8 34.5 9 250 10000 250 68 63.9 23.3 | 241 44 38.5 21.2 10 200 11450 255 60 58.0 15.5 | 248 35 32.6 13.5 11 150 13350 265 50 49.8 4.4 | 265 25 24.4 2.3 12 100 16010 270 42 42.0 -0.0 | 277 17 16.6 -2.0 13 70 18350 290 36 33.8 -12.3 | 330 17 8.4 -14.4 14 50 20540 315 25 17.7 -17.7 | 21 21 -7.7 -19.7 15 30 23880 345 15 3.9 -14.5 | 52 27 -21.5 -16.5 16 20 26520 15 11 -2.8 -10.6 | 66 31 -28.2 -12.7 17 10 31040 30 17 -8.5 -14.7 | 64 38 -33.9 -16.8 Wind Parameters Mean winds (0-6000m): 235.4 at 34.0 knts Storm direction: 265.4 at 25.5 knts Shear (0-3000m) pos: 5.3 neg: 0.0 tot: 5.3 10-3/s Storm rel Dir Shear (0-3000m): 94.6 deg Storm rel helicity (0-3000m) pos: 149.4 neg: 0.0 tot: 149.4 m^2/s^2 ave: 49.8 10^-3 m/s^2 rel: 0.95 Storm rel vorticity (0-3000m) horiz: 5.5 stream: 5.2 10^-3/s Energy-Hel index: 0.02 Bulk Rich Number: 0.22 Bulk Shear: 104.50 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 ------------------------------------------------------------------------------- 500 206 7 101 23| 4.2 0.0 4.2| 21.1 0.0 21.1 42.1 0.86| 4.2 3.6 1000 212 10 107 21| 5.9 0.0 5.9| 57.8 0.0 57.8 57.8 0.90| 5.9 5.3 1500 216 13 115 20| 5.9 0.0 5.9| 85.6 0.0 85.6 57.0 0.92| 6.0 5.5 2000 220 16 123 18| 5.7 0.0 5.7|107.8 0.0 107.8 53.9 0.94| 5.8 5.4 2500 224 18 131 17| 5.5 0.0 5.5|130.6 0.0 130.6 52.2 0.95| 5.7 5.4 3000 227 21 140 16| 5.3 0.0 5.3|149.4 0.0 149.4 49.8 0.95| 5.5 5.2 4000 231 25 157 15| 5.0 0.0 5.0|179.7 0.0 179.7 44.9 0.90| 5.1 4.6 5000 234 30 175 16| 4.8 0.0 4.8|212.7 0.0 212.7 42.5 0.86| 4.9 4.2 6000 235 34 188 17| 4.3 0.3 4.6|238.1 0.0 238.1 39.7 0.79| 4.7 3.7 Wrote GIF file: /home/apache/climate/data/raob//U9231/skewt/U9231.skewt.20250417.00.gif