UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025121012.upa.cvt Date: 1200Z 10 DEC 25 Searching for U8661... Searching the city database file for: U8661 ... Date:1200Z 10 DEC 25 Station: U8661 WMO ident: 28661 Latitude: 55.47 Longitude: 65.40 ------------------------------------------------------------------------------- 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 ------------------------------------------------------------------------------- SFC 1033 70 -16.3 -20.8 68 4.5 -17.0 200 9 254.5 254.6 254.1 256.4 0.70 1 1008 254 -17.9 -22.9 65 5.0 -18.6 219 26 254.7 254.8 254.1 256.3 0.60 2 1001 306 -17.1 -23.1 60 6.0 -18.0 224 30 256.0 256.1 255.1 257.6 0.59 3 1000 314 -16.7 -22.7 60 6.0 -17.6 225 31 256.5 256.5 255.6 258.1 0.62 4 990 390 -12.5 -18.5 61 6.0 -13.6 230 31 261.4 261.5 260.1 263.9 0.90 5 985 429 -8.9 -15.9 57 7.0 -10.5 232 31 265.4 265.6 263.6 268.5 1.12 6 978 484 -6.9 -14.9 53 8.0 -8.9 235 31 267.9 268.1 265.6 271.4 1.23 7 957 654 -5.5 -20.5 30 15.0 -8.8 245 31 271.0 271.2 266.9 273.3 0.78 8 952 695 -5.5 -21.5 27 16.0 -8.9 247 31 271.4 271.6 267.0 273.5 0.72 9 925 920 -6.5 -20.5 32 14.0 -9.6 260 31 272.7 272.8 268.0 275.0 0.81 10 850 1578 -9.3 -23.3 31 14.0 -12.1 270 31 276.4 276.5 270.2 278.5 0.69 11 700 3060 -15.7 -41.7 9 26.0 -18.6 265 29 285.1 285.1 274.3 285.6 0.14 12 654 3571 -17.9 -44.9 7 27.0 -20.6 271 30 288.2 288.2 275.9 288.6 0.11 13 637 3768 -18.1 -30.1 34 12.0 -20.0 273 30 290.2 290.2 277.5 291.7 0.49 14 628 3874 -18.5 -26.5 49 8.0 -19.9 275 30 290.9 291.0 278.2 293.1 0.70 15 564 4668 -23.7 -28.4 65 4.7 -24.4 284 32 293.8 294.0 279.5 295.9 0.65 16 534 5066 -25.5 -30.1 65 4.6 -26.2 289 32 296.3 296.4 280.6 298.2 0.59 17 500 5540 -29.1 -33.9 63 4.8 -29.6 295 33 297.6 297.6 280.9 299.0 0.43 18 400 7090 -41.3 -46.3 58 5.0 -41.6 300 35 301.3 301.3 282.1 301.8 0.15 19 300 8980 -57.1 -62.1 53 5.0 -57.2 300 46 304.9 304.9 283.4 305.0 0.03 20 267 9708 -63.3 -68.2 51 4.9 -63.3 303 49 306.1 306.1 283.9 306.2 0.01 21 250 10110 -66.5 -71.3 51 4.8 -66.5 305 50 307.2 307.2 284.2 307.2 0.01 22 222 10820 -70.7 -75.5 49 4.8 -70.7 302 48 311.4 311.4 285.8 311.4 0.01 23 212 11094 -70.1 -74.9 49 4.8 -70.1 301 47 316.4 316.4 287.6 316.5 0.01 24 200 11440 -69.5 -74.4 49 4.9 -69.5 300 46 322.7 322.7 289.6 322.7 0.01 25 176 12209 -66.1 -71.0 50 4.9 -66.1 340.3 340.3 294.4 340.4 0.02 TRP WND Sounding variables and indices 1000-500 mb thick: 5226.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.14 inches Sfc-500 mean rel hum: 37.88 % Est. max temperature: 4.13 C = 39.43 F Sfc-Lift cond lev (LCL): 959.73 mb = 631.67 m = 2072.38 ft T: -5.68 C 700-500 lapse rate: 5.40 C/km ThetaE index: 0.07 C Layer 1008.0-1001.0 mb Conv cond level (CCL): 520.59 mb = 5249.32 m = 17221.96 ft Mean mixing ratio: 0.81 g/kg Conv temperature: 26.43 C = 79.57 F Cap Strength: 25.46 C Lifted Index: 25.93 C Risk: None Lifted Index @300 mb: 27.49 C Lifted Index @700 mb: 18.03 C Showalter Index: 16.06 C Risk: None Total Totals Index: 25.60 C Risk: None Vertical Totals Index: 19.80 C Cross Totals Index: 5.80 C K Index: -29.50 Risk: None Sweat Index: 95.00 Risk: None Energy Index: 4.34 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 99.54 J/kg Max Up Vert Vel: 14.11 m/s Conv Inhibition (B-): 12077.05 J/kg Cap Strength: 25.82 C Lift Cond Lev (LCL): 848.46 mb = 1591.82 m = 5222.43 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 302 at 23 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 1033 70 200 9 3.1 8.5 | 142 26 -16.3 20.7 1 1000 314 225 31 21.9 21.9 | 184 34 2.6 34.2 2 925 920 260 31 30.5 5.4 | 212 21 11.2 17.6 3 850 1578 270 31 31.0 -0.0 | 224 17 11.7 12.2 4 700 3060 265 29 28.9 2.5 | 213 18 9.5 14.8 5 500 5540 295 33 29.9 -13.9 | 279 11 10.6 -1.7 6 400 7090 300 35 30.3 -17.5 | 296 12 11.0 -5.3 7 300 8980 300 46 39.8 -23.0 | 298 23 20.5 -10.8 8 250 10110 305 50 41.0 -28.7 | 307 27 21.6 -16.4 9 200 11440 300 46 39.8 -23.0 | 298 23 20.5 -10.8 Wind Parameters Mean winds (0-6000m): 272.3 at 30.5 knts Storm direction: 302.3 at 22.9 knts Shear (0-3000m) pos: 5.0 neg: 0.5 tot: 5.5 10-3/s Storm rel Dir Shear (0-3000m): 71.2 deg Storm rel helicity (0-3000m) pos: 292.4 neg: -14.2 tot: 278.2 m^2/s^2 ave: 92.7 10^-3 m/s^2 rel: 0.72 Storm rel vorticity (0-3000m) horiz: 8.7 stream: 6.2 10^-3/s Energy-Hel index: 0.18 Bulk Rich Number: 1.57 Bulk Shear: 63.57 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 ------------------------------------------------------------------------------- 500 227 25 179 30| 25.5 0.0 25.5|224.9 0.0 224.9 449.8 0.91| 31.9 29.0 1000 241 28 192 26| 14.4 0.0 14.4|278.8 0.0 278.8 278.8 0.85| 22.2 18.8 1500 250 29 200 23| 10.0 0.0 10.0|292.4 0.0 292.4 195.0 0.83| 16.2 13.5 2000 255 30 205 22| 7.5 0.3 7.8|292.4 -4.7 287.7 143.9 0.79| 12.4 9.9 2500 258 30 208 21| 6.0 0.4 6.4|292.4 -9.7 282.8 113.1 0.75| 10.2 7.7 3000 259 30 209 20| 5.0 0.5 5.5|292.4 -14.2 278.2 92.7 0.72| 8.7 6.2 4000 262 30 212 19| 4.2 0.4 4.6|314.6 -14.2 300.3 75.1 0.73| 7.3 5.3 5000 267 30 218 17| 3.8 0.3 4.1|335.0 -14.2 320.8 64.2 0.75| 6.6 4.9 6000 272 31 225 16| 3.3 0.3 3.6|347.7 -14.2 333.5 55.6 0.76| 5.9 4.5 Wrote GIF file: /home/apache/climate/data/raob//U8661/skewt/U8661.skewt.20251210.12.gif