UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025121000.upa.cvt Date: 0000Z 10 DEC 25 Searching for U4641... Searching the city database file for: U4641 ... Date:0000Z 10 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 ------------------------------------------------------------------------------- SFC 1009 113 -35.7 -42.7 49 7.0 -35.9 205 1 236.8 236.9 236.6 237.1 0.09 1 1000 175 -35.7 -44.7 39 9.0 -36.0 215 3 237.4 237.5 237.2 237.6 0.07 2 962 445 -35.3 -44.3 39 9.0 -35.6 237 13 240.5 240.5 240.1 240.7 0.08 3 956 489 -33.3 -42.3 40 9.0 -33.7 241 15 243.0 243.0 242.5 243.2 0.10 4 954 503 -30.3 -39.3 41 9.0 -30.7 242 15 246.1 246.2 245.5 246.5 0.13 5 925 725 -25.9 -34.9 43 9.0 -26.6 260 23 252.8 252.9 251.6 253.4 0.21 6 924 733 -25.9 -34.9 43 9.0 -26.6 260 23 252.9 252.9 251.7 253.5 0.21 7 853 1314 -24.5 -33.5 43 9.0 -25.3 279 17 260.2 260.3 257.9 261.0 0.27 8 850 1340 -24.5 -33.5 43 9.0 -25.3 280 17 260.5 260.5 258.1 261.3 0.27 9 731 2427 -28.7 -36.7 46 8.0 -29.3 272 12 267.4 267.4 263.2 268.0 0.23 10 700 2736 -30.7 -38.7 45 8.0 -31.2 270 11 268.5 268.5 264.0 269.1 0.19 11 500 5050 -45.5 -53.5 40 8.0 -45.7 245 3 277.6 277.6 269.8 277.7 0.05 12 400 6510 -54.1 -61.1 42 7.0 -54.2 345 1 284.7 284.7 273.9 284.8 0.03 13 380 6837 -56.7 -63.7 41 7.0 -56.8 348 1 285.5 285.5 274.3 285.5 0.02 14 326 7797 -62.1 -69.1 39 7.0 -62.1 356 1 290.8 290.8 277.1 290.8 0.01 15 321 7892 -61.3 -68.3 39 7.0 -61.3 357 1 293.2 293.2 278.3 293.2 0.01 16 301 8290 -63.5 -69.5 44 6.0 -63.6 360 1 295.5 295.5 279.4 295.6 0.01 17 300 8310 -63.5 -69.5 44 6.0 -63.6 5 1 295.8 295.8 279.5 295.9 0.01 18 286 8605 -63.7 -69.7 44 6.0 -63.7 52 1 299.6 299.6 281.2 299.7 0.01 19 250 9440 -60.7 -67.7 39 7.0 -60.8 185 1 315.8 315.8 287.4 315.9 0.02 20 210 10532 -56.3 -63.3 41 7.0 -56.4 201 6 338.8 338.9 294.1 339.0 0.04 21 200 10840 -56.7 -63.7 41 7.0 -56.8 205 7 343.0 343.0 295.1 343.1 0.04 22 153 12535 -57.5 -64.5 41 7.0 -57.6 191 11 368.9 368.9 300.4 369.1 0.04 23 150 12660 -57.3 -64.3 41 7.0 -57.5 190 11 371.4 371.4 300.8 371.6 0.04 24 142 13007 -55.1 -62.1 42 7.0 -55.3 191 12 381.1 381.1 302.5 381.4 0.06 25 100 15230 -57.5 -64.5 41 7.0 -57.8 195 21 416.6 416.6 307.3 417.0 0.07 26 75 17024 -62.5 -69.5 38 7.0 -62.7 195 33 441.9 441.9 310.1 442.1 0.04 27 70 17450 -61.5 -68.5 39 7.0 -61.7 195 36 452.8 452.8 311.1 453.1 0.05 28 50 19530 -63.1 -70.1 38 7.0 -63.3 190 46 494.8 494.8 314.6 495.2 0.06 29 40 20901 -63.9 -70.9 38 7.0 -64.2 192 54 525.4 525.4 316.6 525.8 0.07 30 30 22680 -60.5 -68.5 34 8.0 -61.1 195 64 579.7 579.8 319.7 580.6 0.13 31 23 24342 -58.3 -66.3 35 8.0 -59.2 631.9 632.0 322.0 633.7 0.22 32 20 25220 -58.6 -66.6 35 8.0 -59.6 210 85 656.7 656.8 323.0 658.7 0.24 33 18 25882 -58.9 -66.9 35 8.0 -60.0 675.9 676.1 323.7 678.2 0.26 TRP 301 8290 -63.5 -69.5 44 6.0 -63.6 360 1 295.5 295.5 279.4 295.6 0.01 WND 20 25220 -58.6 -66.6 35 8.0 -59.6 210 85 656.7 656.8 323.0 658.7 0.24 Sounding variables and indices 1000-500 mb thick: 4875.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.04 inches Sfc-500 mean rel hum: 43.11 % Est. max temperature: -12.92 C = 8.75 F Sfc-Lift cond lev (LCL): 893.37 mb = 977.98 m = 3208.55 ft T: -25.31 C 700-500 lapse rate: 6.40 C/km ThetaE index: 0.00 C Layer 1009.0-272008302207532160516096.0 mb Conv cond level (CCL): 498.54 mb = 5069.20 m = 16631.02 ft Mean mixing ratio: 0.13 g/kg Conv temperature: 5.22 C = 41.40 F Cap Strength: 21.31 C Lifted Index: 26.73 C Risk: None Lifted Index @300 mb: 36.03 C Lifted Index @700 mb: 21.31 C Showalter Index: 13.43 C Risk: None Total Totals Index: 33.00 C Risk: None Vertical Totals Index: 21.00 C Cross Totals Index: 12.00 C K Index: -20.50 Risk: None Sweat Index: 37.00 Risk: None Energy Index: 3.49 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 87.41 J/kg Max Up Vert Vel: 13.22 m/s Conv Inhibition (B-): 59739.87 J/kg Cap Strength: 26.55 C Lift Cond Lev (LCL): 835.39 mb = 1465.04 m = 4806.50 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 298 at 7 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 1009 113 205 1 0.4 0.9 | 126 7 -5.8 4.3 1 1000 175 215 3 1.7 2.5 | 142 7 -4.5 5.8 2 925 725 260 23 22.7 4.0 | 246 18 16.4 7.4 3 850 1340 280 17 16.7 -3.0 | 268 10 10.5 0.4 4 700 2736 270 11 11.0 -0.0 | 235 6 4.7 3.4 5 500 5050 245 3 2.7 1.3 | 143 6 -3.6 4.6 6 400 6510 345 1 0.3 -1.0 | 112 6 -6.0 2.4 7 301 8290 360 1 -0.0 -1.0 | 111 7 -6.3 2.4 8 300 8310 5 1 -0.1 -1.0 | 110 7 -6.4 2.4 9 250 9440 185 1 0.1 1.0 | 125 8 -6.2 4.4 10 200 10840 205 7 3.0 6.3 | 161 10 -3.3 9.7 11 150 12660 190 11 1.9 10.8 | 163 15 -4.4 14.2 12 100 15230 195 21 5.4 20.3 | 178 24 -0.8 23.6 13 70 17450 195 36 9.3 34.8 | 185 38 3.0 38.1 14 50 19530 190 46 8.0 45.3 | 182 49 1.7 48.7 15 30 22680 195 64 16.6 61.8 | 189 66 10.3 65.2 Wind Parameters Mean winds (0-6000m): 268.2 at 9.5 knts Storm direction: 298.2 at 7.1 knts Shear (0-3000m) pos: 2.7 neg: 1.1 tot: 3.8 10-3/s Storm rel Dir Shear (0-3000m): 93.9 deg Storm rel helicity (0-3000m) pos: 85.7 neg: -10.9 tot: 74.7 m^2/s^2 ave: 24.9 10^-3 m/s^2 rel: 0.52 Storm rel vorticity (0-3000m) horiz: 7.1 stream: 3.7 10^-3/s Energy-Hel index: 0.05 Bulk Rich Number: 44.49 Bulk Shear: 1.96 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 ------------------------------------------------------------------------------- 500 245 10 200 8| 18.8 0.0 18.8| 47.0 0.0 47.0 94.0 0.91| 20.2 18.3 1000 260 15 236 11| 9.7 0.0 9.7| 80.7 0.0 80.7 80.7 0.85| 15.7 13.3 1500 266 16 245 11| 5.3 0.0 5.3| 85.7 -1.6 84.0 56.0 0.77| 12.0 9.2 2000 269 16 248 10| 4.0 0.6 4.6| 85.7 -5.1 80.5 40.3 0.68| 9.6 6.5 2500 270 15 248 9| 3.2 1.0 4.2| 85.7 -8.2 77.5 31.0 0.60| 8.1 4.8 3000 270 14 247 9| 2.7 1.1 3.8| 85.7 -10.9 74.7 24.9 0.52| 7.1 3.7 4000 269 13 240 7| 2.0 1.3 3.3| 85.7 -15.9 69.8 17.4 0.40| 5.8 2.3 5000 268 11 232 6| 1.6 1.4 3.0| 85.7 -20.6 65.1 13.0 0.30| 5.0 1.5 6000 268 9 221 5| 1.2 1.1 2.4| 85.7 -24.1 61.6 10.3 0.23| 4.4 1.0 Wrote GIF file: /home/apache/climate/data/raob//U4641/skewt/U4641.skewt.20251210.00.gif