UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025112900.upa.cvt Date: 0000Z 29 NOV 25 Searching for U4688... Searching the city database file for: U4688 ... Date:0000Z 29 NOV 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 228 SFC 930 740 -34.5 -37.8 72 3.3 -34.7 10 1 243.7 243.7 243.2 244.1 0.16 2 925 778 -35.3 -38.4 73 3.1 -35.4 20 3 243.2 243.2 242.8 243.6 0.15 3 897 989 -36.5 -39.4 74 2.9 -36.6 67 10 244.1 244.1 243.6 244.5 0.14 4 869 1209 -31.5 -34.4 75 2.9 -31.7 116 16 251.6 251.6 250.6 252.2 0.24 5 850 1365 -28.7 -31.7 75 3.0 -28.9 150 21 256.1 256.1 254.6 257.0 0.32 6 777 2024 -17.5 -20.2 79 2.7 -18.0 164 17 274.8 274.9 269.7 277.6 0.99 7 709 2706 -21.5 -24.3 78 2.8 -22.0 178 14 277.7 277.8 271.1 279.9 0.75 8 700 2800 -22.3 -25.0 79 2.7 -22.7 180 13 277.8 277.9 271.1 279.9 0.72 9 583 4114 -32.9 -35.6 77 2.7 -33.1 188 25 280.3 280.4 271.9 281.3 0.32 10 500 5180 -39.3 -42.2 74 2.9 -39.5 195 35 285.1 285.2 274.4 285.7 0.19 11 431 6185 -44.9 -47.9 72 3.0 -45.0 205 48 290.4 290.4 277.0 290.8 0.12 12 400 6680 -48.7 -51.6 72 2.9 -48.8 210 54 291.7 291.7 277.6 292.0 0.08 13 326 7993 -58.8 -61.8 68 3.0 -58.9 215 62 295.3 295.3 279.3 295.4 0.03 14 310 8307 -61.3 -64.3 67 3.0 -61.3 215 62 296.1 296.1 279.7 296.2 0.02 15 300 8510 -61.9 -64.8 68 2.9 -61.9 215 62 298.1 298.1 280.5 298.2 0.02 16 291 8699 -62.9 -65.8 68 2.9 -62.9 215 62 299.3 299.3 281.0 299.3 0.02 17 275 9048 -63.1 -66.1 67 3.0 -63.1 213 58 303.9 303.9 283.0 303.9 0.02 18 250 9640 -60.7 -63.8 67 3.1 -60.7 210 50 315.8 315.8 287.4 315.9 0.03 19 224 10329 -56.9 -59.8 70 2.9 -57.0 208 43 331.7 331.7 292.2 332.0 0.05 20 210 10734 -59.7 -62.9 66 3.2 -59.7 206 38 333.5 333.5 292.7 333.7 0.04 21 200 11040 -58.5 -61.7 66 3.2 -58.6 205 35 340.1 340.1 294.4 340.3 0.05 22 159 12491 -56.3 -59.5 67 3.2 -56.4 209 36 366.9 366.9 300.1 367.3 0.08 23 150 12860 -57.3 -60.4 68 3.1 -57.4 210 36 371.4 371.4 300.9 371.7 0.07 24 104 15173 -57.9 -61.2 66 3.3 -58.0 192 40 411.2 411.2 306.7 411.7 0.10 25 100 15420 -58.1 -61.4 66 3.3 -58.2 190 40 415.5 415.5 307.2 416.0 0.10 26 79 16920 -52.3 -55.6 67 3.3 -52.6 183 47 456.4 456.5 311.6 457.9 0.26 27 70 17700 -52.5 -55.9 67 3.4 -52.8 180 50 472.1 472.2 313.0 473.7 0.28 28 60 18702 -50.9 -54.3 67 3.4 -51.3 173 61 496.9 497.0 314.9 499.3 0.40 29 55 19266 -53.1 -56.5 66 3.4 -53.5 169 68 504.4 504.5 315.4 506.4 0.33 30 54 19386 -49.5 -53.1 66 3.6 -50.1 168 69 515.4 515.5 316.2 518.5 0.51 31 50 19890 -50.1 -53.6 66 3.5 -50.7 165 75 525.4 525.6 316.8 528.7 0.52 32 42 21022 -52.7 -56.1 66 3.4 -53.2 545.8 546.0 318.1 548.9 0.46 TRP 291 8699 -62.9 -65.8 68 2.9 -62.9 215 62 299.3 299.3 281.0 299.3 0.02 WND 326 7993 -58.8 -61.8 68 3.0 -58.9 215 62 295.3 295.3 279.3 295.4 0.03 Sounding variables and indices 1000-500 mb thick: 4952.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.10 inches Sfc-500 mean rel hum: 76.75 % Est. max temperature: -4.82 C = 23.33 F Sfc-Lift cond lev (LCL): 878.75 mb = 1131.79 m = 3713.18 ft T: -33.26 C 700-500 lapse rate: 7.14 C/km ThetaE index: 0.47 C Layer 925.0- 897.0 mb Conv cond level (CCL): 930.00 mb = 740.04 m = 2427.92 ft Mean mixing ratio: 0.23 g/kg Conv temperature: -34.00 C = -29.19 F Cap Strength: 25.62 C Lifted Index: 28.36 C Risk: None Lifted Index @300 mb: 33.71 C Lifted Index @700 mb: 24.79 C Showalter Index: 23.14 C Risk: None Total Totals Index: 18.20 C Risk: None Vertical Totals Index: 10.60 C Cross Totals Index: 7.60 C K Index: -23.80 Risk: None Sweat Index: 77.00 Risk: None Energy Index: 6.28 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 80.95 J/kg Max Up Vert Vel: 12.72 m/s Conv Inhibition (B-): 47348.14 J/kg Cap Strength: 28.19 C Lift Cond Lev (LCL): 845.75 mb = 1401.81 m = 4599.07 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 222 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 ---------------------------------------------------------- 0 930 740 10 1 -0.2 -1.0 | 40 21 -13.5 -16.0 1 925 778 20 3 -1.0 -2.8 | 39 23 -14.3 -17.8 2 850 1365 150 21 -10.5 18.2 | 98 24 -23.8 3.2 3 700 2800 180 13 0.0 13.0 | 81 13 -13.3 -2.0 4 500 5180 195 35 9.1 33.8 | 167 19 -4.2 18.8 5 400 6680 210 54 27.0 46.8 | 203 35 13.7 31.7 6 326 7993 215 62 35.6 50.8 | 212 42 22.3 35.8 7 300 8510 215 62 35.6 50.8 | 212 42 22.3 35.8 8 291 8699 215 62 35.6 50.8 | 212 42 22.3 35.8 9 250 9640 210 50 25.0 43.3 | 202 31 11.7 28.3 10 200 11040 205 35 14.8 31.7 | 185 17 1.5 16.7 11 150 12860 210 36 18.0 31.2 | 196 17 4.7 16.2 12 100 15420 190 40 6.9 39.4 | 165 25 -6.4 24.4 13 70 17700 180 50 0.0 50.0 | 159 37 -13.3 35.0 14 50 19890 165 75 -19.4 72.4 | 150 66 -32.7 57.4 Wind Parameters Mean winds (0-6000m): 191.5 at 26.7 knts Storm direction: 221.5 at 20.1 knts Shear (0-3000m) pos: 3.9 neg: 0.0 tot: 3.9 10-3/s Storm rel Dir Shear (0-3000m): 80.6 deg Storm rel helicity (0-3000m) pos: 235.2 neg: -18.2 tot: 217.0 m^2/s^2 ave: 72.3 10^-3 m/s^2 rel: 0.59 Storm rel vorticity (0-3000m) horiz: 9.5 stream: 5.5 10^-3/s Energy-Hel index: 0.10 Bulk Rich Number: 0.85 Bulk Shear: 95.28 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 ------------------------------------------------------------------------------- 500 111 9 62 25| 18.1 0.0 18.1|145.8 -0.2 145.6 291.2 0.76| 25.8 19.7 1000 149 14 82 21| 10.2 0.0 10.2|206.8 -1.6 205.2 205.2 0.73| 19.6 14.3 1500 154 15 87 20| 5.8 0.0 5.8|206.8 -8.2 198.6 132.4 0.62| 14.5 9.1 2000 157 15 87 19| 3.7 0.0 3.7|206.8 -18.2 188.6 94.3 0.52| 11.9 6.2 2500 162 15 88 18| 3.7 0.0 3.7|219.4 -18.2 201.2 80.5 0.55| 10.4 5.7 3000 167 16 91 17| 3.9 0.0 3.9|235.2 -18.2 217.0 72.3 0.59| 9.5 5.5 4000 176 18 103 15| 4.1 0.0 4.1|268.8 -18.2 250.7 62.7 0.64| 8.3 5.3 5000 184 22 120 14| 4.4 0.0 4.4|320.7 -18.2 302.6 60.5 0.66| 7.9 5.2 6000 192 27 145 14| 4.7 0.0 4.7|401.3 -18.2 383.1 63.8 0.66| 7.9 5.2 Wrote GIF file: /home/apache/climate/data/raob//U4688/skewt/U4688.skewt.20251129.00.gif