UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120512.upa.cvt Date: 1200Z 5 DEC 25 Searching for U4688... Searching the city database file for: U4688 ... Date:1200Z 5 DEC 25 Station: U4688 WMO ident: 24688 Latitude: 63.27 Longitude: 143.15 ------------------------------------------------------------------------------- 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 -34 1 925 539 SFC 892 775 -24.7 -27.4 78 2.7 -25.0 20 3 256.7 256.8 255.4 258.0 0.45 3 887 811 -25.3 -28.6 74 3.3 -25.6 15 4 256.5 256.6 255.2 257.6 0.41 4 850 1092 -19.1 -22.3 76 3.2 -19.6 340 11 266.1 266.3 263.4 268.3 0.75 5 831 1261 -16.1 -19.1 78 3.0 -16.7 357 15 271.0 271.2 267.3 273.9 1.01 6 784 1699 -16.7 -19.5 79 2.8 -17.3 40 24 274.9 275.1 269.9 277.9 1.04 7 730 2232 -19.5 -22.3 78 2.8 -20.0 94 35 277.5 277.7 271.2 280.1 0.87 8 700 2545 -18.3 -21.1 79 2.8 -18.8 125 42 282.2 282.4 274.2 285.3 1.01 9 686 2696 -17.5 -20.2 79 2.7 -18.1 124 41 284.7 284.9 275.7 288.1 1.12 10 562 4160 -26.9 -29.7 77 2.8 -27.3 118 31 290.4 290.5 277.7 292.2 0.58 11 500 4990 -34.3 -37.3 74 3.0 -34.6 115 25 291.2 291.3 277.7 292.2 0.31 12 450 5716 -40.5 -43.5 73 3.0 -40.6 113 21 292.3 292.4 278.1 292.9 0.18 13 400 6510 -44.5 -47.7 70 3.2 -44.6 110 17 297.2 297.2 280.3 297.6 0.13 14 341 7572 -49.9 -53.2 68 3.3 -50.0 104 14 303.7 303.7 283.0 304.0 0.08 15 302 8367 -51.7 -54.9 68 3.2 -51.8 100 11 311.9 311.9 286.1 312.2 0.07 16 300 8410 -51.5 -54.7 68 3.2 -51.6 105 11 312.8 312.8 286.4 313.0 0.08 17 292 8585 -51.7 -54.9 68 3.2 -51.8 110 14 314.9 314.9 287.2 315.2 0.08 18 257 9418 -47.7 -51.2 67 3.5 -47.9 135 26 332.5 332.5 292.5 333.0 0.13 19 250 9600 -48.5 -52.1 66 3.6 -48.7 140 29 334.0 334.0 292.9 334.5 0.12 20 200 11060 -51.7 -55.1 67 3.4 -51.8 150 36 350.9 350.9 296.9 351.4 0.11 21 190 11390 -53.3 -57.0 64 3.7 -53.4 151 37 353.5 353.5 297.5 353.9 0.09 22 175 11921 -49.7 -53.5 64 3.8 -49.9 152 39 367.9 367.9 300.3 368.5 0.15 23 150 12920 -52.1 -55.7 65 3.6 -52.3 155 42 380.3 380.3 302.4 380.9 0.13 24 100 15530 -54.7 -58.6 62 3.9 -54.9 175 46 422.0 422.1 308.0 422.8 0.14 25 70 17800 -54.3 -58.3 61 4.0 -54.6 190 48 468.2 468.3 312.6 469.4 0.21 26 61 18687 -53.5 -57.5 62 4.0 -53.9 194 50 488.8 488.9 314.2 490.4 0.26 27 50 19960 -56.7 -60.4 63 3.7 -57.0 200 54 509.9 509.9 315.7 511.3 0.22 28 47 20351 -58.1 -62.0 61 3.9 -58.4 201 57 515.6 515.7 316.1 516.8 0.19 29 43 20916 -54.3 -58.3 61 4.0 -54.8 203 61 538.2 538.3 317.5 540.5 0.34 30 36 22045 -58.3 -62.3 60 4.0 -58.7 206 69 555.9 556.0 318.5 557.6 0.24 31 31 22992 -55.7 -59.6 62 3.9 -56.2 209 76 587.3 587.4 320.2 590.2 0.40 32 30 23200 -57.5 -61.4 61 3.9 -58.0 210 77 587.9 588.0 320.2 590.3 0.33 33 29 23412 -58.9 -62.9 60 4.0 -59.3 209 79 589.8 589.9 320.2 591.8 0.28 34 25 24353 -52.5 -56.6 61 4.1 -53.4 206 87 633.7 634.0 322.3 639.3 0.72 35 21 25477 -52.1 -56.1 62 4.0 -53.1 201 96 667.3 667.7 323.6 674.8 0.91 36 20 25790 -54.3 -58.4 61 4.1 -55.2 200 99 670.0 670.3 323.6 675.9 0.72 37 17 26823 -57.9 -61.9 60 4.0 -58.6 690.3 690.5 324.3 694.9 0.54 38 16 27208 -55.3 -59.3 61 4.0 -56.3 710.9 711.2 325.0 717.9 0.81 39 16 27208 -51.7 -55.7 62 4.0 -52.9 722.6 723.2 325.5 733.8 1.26 TRP 302 8367 -51.7 -54.9 68 3.2 -51.8 100 11 311.9 311.9 286.1 312.2 0.07 WND Sounding variables and indices 1000-500 mb thick: 5024.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.16 inches Sfc-500 mean rel hum: 77.48 % Est. max temperature: -5.11 C = 22.80 F Sfc-Lift cond lev (LCL): 852.68 mb = 1071.24 m = 3514.51 ft T: -19.56 C 700-500 lapse rate: 6.54 C/km ThetaE index: 0.33 C Layer 887.0- 850.0 mb Conv cond level (CCL): 892.00 mb = 774.58 m = 2541.25 ft Mean mixing ratio: 0.81 g/kg Conv temperature: -20.90 C = -5.61 F Cap Strength: 18.14 C Lifted Index: 18.12 C Risk: None Lifted Index @300 mb: 30.78 C Lifted Index @700 mb: 12.73 C Showalter Index: 18.97 C Risk: None Total Totals Index: 27.20 C Risk: None Vertical Totals Index: 15.20 C Cross Totals Index: 12.00 C K Index: -9.90 Risk: None Sweat Index: 47.00 Risk: None Energy Index: 5.18 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 75.29 J/kg Max Up Vert Vel: 12.27 m/s Conv Inhibition (B-): 67510.91 J/kg Cap Strength: 18.15 C Lift Cond Lev (LCL): 806.19 mb = 1489.26 m = 4885.97 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 147 at 20 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 ---------------------------------------------------------- 0 892 775 20 3 -1.0 -2.8 | 333 22 9.7 -19.4 1 850 1092 340 11 3.8 -10.3 | 332 31 14.5 -26.9 2 700 2545 125 42 -34.4 24.1 | 108 25 -23.7 7.5 3 500 4990 115 25 -22.7 10.6 | 63 13 -11.9 -6.0 4 400 6510 110 17 -16.0 5.8 | 26 12 -5.2 -10.7 5 302 8367 100 11 -10.8 1.9 | 0 15 -0.1 -14.6 6 300 8410 105 11 -10.6 2.8 | 360 14 0.1 -13.7 7 250 9600 140 29 -18.6 22.2 | 126 10 -7.9 5.7 8 200 11060 150 36 -18.0 31.2 | 154 16 -7.3 14.6 9 150 12920 155 42 -17.7 38.1 | 162 23 -7.0 21.5 10 100 15530 175 46 -4.0 45.8 | 193 30 6.7 29.3 11 70 17800 190 48 8.3 47.3 | 212 36 19.1 30.7 12 50 19960 200 54 18.5 50.7 | 220 45 29.2 34.2 13 30 23200 210 77 38.5 66.7 | 224 70 49.2 50.1 14 20 25790 200 99 33.9 93.0 | 210 89 44.6 76.5 Wind Parameters Mean winds (0-6000m): 117.0 at 26.3 knts Storm direction: 147.0 at 19.7 knts Shear (0-3000m) pos: 8.7 neg: 3.3 tot: 11.9 10-3/s Storm rel Dir Shear (0-3000m): 117.1 deg Storm rel helicity (0-3000m) pos: 590.8 neg: -46.8 tot: 544.0 m^2/s^2 ave: 181.3 10^-3 m/s^2 rel: 0.70 Storm rel vorticity (0-3000m) horiz: 15.8 stream: 11.1 10^-3/s Energy-Hel index: 0.28 Bulk Rich Number: 0.54 Bulk Shear: 139.85 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 ------------------------------------------------------------------------------- 500 349 9 334 28| 0.0 12.5 12.5| 43.5 -11.7 31.8 63.6 0.26| 15.0 3.9 1000 22 14 350 30| 10.1 6.3 16.3|230.7 -11.7 219.0 219.0 0.69| 18.1 12.4 1500 73 20 20 24| 14.2 4.2 18.4|462.4 -11.7 450.7 300.5 0.81| 22.0 17.9 2000 113 24 60 14| 13.0 3.1 16.1|590.8 -18.1 572.7 286.4 0.83| 21.8 18.1 2500 117 27 72 14| 10.4 3.2 13.6|590.8 -33.0 557.8 223.1 0.76| 18.2 13.9 3000 118 29 78 15| 8.7 3.3 11.9|590.8 -46.8 544.0 181.3 0.70| 15.8 11.1 4000 119 29 80 15| 6.5 3.3 9.8|590.8 -71.7 519.1 129.8 0.59| 12.8 7.6 5000 118 28 76 14| 5.2 3.2 8.4|590.8 -90.4 500.4 100.1 0.51| 10.8 5.5 6000 117 26 70 14| 4.3 3.0 7.4|590.8-105.7 485.1 80.8 0.44| 9.5 4.2 Wrote GIF file: /home/apache/climate/data/raob//U4688/skewt/U4688.skewt.20251205.12.gif