UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120312.upa.cvt Date: 1200Z 3 DEC 25 Searching for U4641... Searching the city database file for: U4641 ... Date:1200Z 3 DEC 25 Station: U4641 WMO ident: 24641 Latitude: 63.77 Longitude: 121.62 ------------------------------------------------------------------------------- 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 103 360 1 SFC 999 110 -35.3 -41.3 54 6.0 -35.5 360 1 237.9 237.9 237.7 238.2 0.10 2 996 131 -32.9 -38.9 55 6.0 -33.1 354 2 240.5 240.5 240.2 240.9 0.13 3 994 145 -30.3 -37.3 50 7.0 -30.7 350 2 243.3 243.3 242.9 243.7 0.16 4 977 268 -29.7 -35.7 56 6.0 -30.0 317 6 245.1 245.1 244.6 245.6 0.19 5 944 517 -23.1 -29.1 58 6.0 -23.7 250 13 254.2 254.3 253.1 255.2 0.36 6 925 666 -21.3 -26.3 64 5.0 -21.9 210 17 257.5 257.6 256.2 258.9 0.48 7 868 1137 -19.1 -23.8 66 4.7 -19.8 206 23 264.5 264.7 262.0 266.4 0.64 8 850 1292 -19.9 -24.4 67 4.5 -20.5 205 25 265.3 265.4 262.5 267.1 0.62 9 844 1345 -20.1 -24.6 67 4.5 -20.7 205 25 265.6 265.7 262.7 267.4 0.62 10 843 1353 -20.3 -24.8 67 4.5 -20.9 205 24 265.5 265.6 262.7 267.2 0.61 11 786 1873 -19.5 -28.5 45 9.0 -20.7 207 20 271.7 271.8 266.8 273.1 0.46 12 726 2458 -23.1 -34.1 36 11.0 -24.2 209 15 274.0 274.1 268.0 274.9 0.29 13 709 2632 -23.7 -35.7 32 12.0 -24.9 210 14 275.2 275.3 268.7 276.0 0.26 14 700 2725 -23.7 -34.7 36 11.0 -24.8 210 13 276.2 276.3 269.4 277.1 0.29 15 623 3569 -26.7 -35.7 42 9.0 -27.6 215 14 282.2 282.2 272.9 283.1 0.29 16 500 5120 -37.3 -43.3 54 6.0 -37.7 225 15 287.6 287.6 275.7 288.1 0.17 17 478 5431 -39.1 -44.1 59 5.0 -39.4 225 15 289.1 289.1 276.5 289.6 0.16 18 473 5503 -39.7 -44.7 59 5.0 -39.9 225 15 289.2 289.2 276.5 289.7 0.15 19 400 6630 -48.7 -53.5 57 4.8 -48.8 225 13 291.7 291.7 277.6 291.9 0.07 20 300 8460 -62.9 -67.6 53 4.7 -62.9 240 13 296.7 296.7 279.9 296.7 0.01 21 274 9015 -66.9 -71.6 51 4.7 -66.9 250 15 298.7 298.7 280.8 298.7 0.01 22 253 9498 -67.1 -71.8 51 4.7 -67.1 263 13 305.3 305.3 283.5 305.3 0.01 23 250 9570 -65.7 -70.1 54 4.4 -65.7 265 13 308.4 308.4 284.7 308.4 0.01 24 210 10638 -62.1 -66.9 53 4.8 -62.1 300 11 329.8 329.8 291.7 329.9 0.02 25 200 10940 -61.9 -66.7 53 4.8 -62.0 310 11 334.7 334.7 293.0 334.8 0.02 26 152 12638 -60.7 -65.6 52 4.9 -60.8 305 11 364.1 364.1 299.5 364.3 0.04 27 150 12720 -60.9 -65.9 52 5.0 -61.0 305 11 365.2 365.2 299.7 365.3 0.04 28 100 15210 -64.3 -69.3 50 5.0 -64.4 275 11 403.5 403.5 305.7 403.7 0.03 29 75 16961 -66.7 -72.7 42 6.0 -66.8 303 11 433.1 433.1 309.1 433.2 0.03 30 70 17380 -65.7 -71.7 43 6.0 -65.8 310 11 443.8 443.8 310.3 444.0 0.03 31 50 19410 -67.9 -73.9 42 6.0 -68.0 215 11 483.5 483.5 313.7 483.7 0.03 32 44 20178 -68.1 -74.1 42 6.0 -68.2 501.0 501.0 315.0 501.2 0.04 TRP 274 9015 -66.9 -71.6 51 4.7 -66.9 250 15 298.7 298.7 280.8 298.7 0.01 WND Sounding variables and indices 1000-500 mb thick: 5017.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.08 inches Sfc-500 mean rel hum: 49.03 % Est. max temperature: -7.87 C = 17.83 F Sfc-Lift cond lev (LCL): 900.32 mb = 866.05 m = 2841.35 ft T: -20.36 C 700-500 lapse rate: 5.68 C/km ThetaE index: 0.15 C Layer 843.0- 786.0 mb Conv cond level (CCL): 999.00 mb = 109.97 m = 360.79 ft Mean mixing ratio: 0.34 g/kg Conv temperature: -29.09 C = -20.36 F Cap Strength: 25.60 C Lifted Index: 28.36 C Risk: None Lifted Index @300 mb: 30.95 C Lifted Index @700 mb: 21.22 C Showalter Index: 16.94 C Risk: None Total Totals Index: 30.30 C Risk: None Vertical Totals Index: 17.40 C Cross Totals Index: 12.90 C K Index: -18.00 Risk: None Sweat Index: 132.75 Risk: None Energy Index: 4.48 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 79.60 J/kg Max Up Vert Vel: 12.62 m/s Conv Inhibition (B-): 42253.41 J/kg Cap Strength: 28.22 C Lift Cond Lev (LCL): 875.88 mb = 1069.71 m = 3509.51 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 244 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 ---------------------------------------------------------- 0 999 110 360 1 -0.0 -1.0 | 60 12 -10.4 -6.1 1 925 666 210 17 8.5 14.7 | 169 10 -1.9 9.6 2 850 1292 205 25 10.6 22.7 | 180 18 0.1 17.6 3 700 2725 210 13 6.5 11.3 | 148 7 -3.9 6.2 4 500 5120 225 15 10.6 10.6 | 182 6 0.2 5.5 5 400 6630 225 13 9.2 9.2 | 163 4 -1.2 4.1 6 300 8460 240 13 11.3 6.5 | 210 2 0.8 1.4 7 274 9015 250 15 14.1 5.1 | 269 4 3.7 0.0 8 250 9570 265 13 13.0 1.1 | 327 5 2.5 -3.9 9 200 10940 310 11 8.4 -7.1 | 9 12 -2.0 -12.2 10 150 12720 305 11 9.0 -6.3 | 7 11 -1.4 -11.4 11 100 15210 275 11 11.0 -1.0 | 355 6 0.5 -6.0 12 70 17380 310 11 8.4 -7.1 | 9 12 -2.0 -12.2 13 50 19410 215 11 6.3 9.0 | 134 6 -4.1 3.9 Wind Parameters Mean winds (0-6000m): 214.0 at 15.5 knts Storm direction: 244.0 at 11.6 knts Shear (0-3000m) pos: 1.6 neg: 4.0 tot: 5.6 10-3/s Storm rel Dir Shear (0-3000m): 92.1 deg Storm rel helicity (0-3000m) pos: 8.7 neg: -51.9 tot: -43.1 m^2/s^2 ave: -14.4 10^-3 m/s^2 rel: -0.52 Storm rel vorticity (0-3000m) horiz: 9.0 stream: -4.7 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 11.15 Bulk Shear: 7.14 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 ------------------------------------------------------------------------------- 500 210 8 107 7| 0.0 16.6 16.6| 0.0 -30.9 -30.9 -61.8 -0.81| 28.1-22.8 1000 209 14 152 8| 0.0 12.1 12.1| 6.0 -34.8 -28.8 -28.8 -0.60| 19.3-11.5 1500 207 17 165 10| 0.0 8.0 8.0| 7.9 -38.0 -30.1 -20.1 -0.54| 14.5 -7.8 2000 207 18 168 11| 1.1 6.0 7.1| 7.9 -43.9 -36.0 -18.0 -0.52| 12.0 -6.3 2500 207 17 167 11| 1.7 4.8 6.5| 7.9 -50.5 -42.6 -17.0 -0.53| 10.4 -5.6 3000 208 17 165 10| 1.6 4.0 5.6| 8.7 -51.9 -43.1 -14.4 -0.52| 9.0 -4.7 4000 209 16 164 9| 1.2 3.0 4.2| 11.4 -51.9 -40.5 -10.1 -0.48| 6.9 -3.3 5000 212 16 166 9| 1.0 2.4 3.4| 14.0 -51.9 -37.9 -7.6 -0.43| 5.7 -2.5 6000 214 15 167 8| 0.9 1.9 2.8| 14.0 -53.1 -39.2 -6.5 -0.44| 4.9 -2.1 Wrote GIF file: /home/apache/climate/data/raob//U4641/skewt/U4641.skewt.20251203.12.gif