UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025101000.upa.cvt Date: 0000Z 10 OCT 25 Searching for U4688... Searching the city database file for: U4688 ... Date:0000Z 10 OCT 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 184 SFC 930 738 -15.3 -18.9 74 3.6 -16.0 170 1 263.3 263.4 261.6 265.8 0.92 2 925 779 -15.9 -21.9 60 6.0 -16.9 185 1 263.1 263.2 261.0 265.1 0.72 3 867 1265 -18.5 -22.4 71 3.9 -19.1 292 6 265.3 265.4 262.7 267.3 0.73 4 850 1413 -17.9 -21.4 74 3.5 -18.5 325 7 267.4 267.5 264.4 269.7 0.81 5 821 1670 -17.7 -20.8 77 3.1 -18.3 341 8 270.3 270.4 266.5 272.8 0.89 6 802 1845 -15.7 -18.7 78 3.0 -16.3 352 8 274.2 274.4 269.5 277.4 1.09 7 700 2854 -20.1 -23.5 74 3.4 -20.7 55 11 280.2 280.4 272.7 282.7 0.82 8 566 4408 -27.7 -32.2 65 4.5 -28.2 64 15 288.8 288.9 276.8 290.3 0.45 9 500 5290 -33.3 -39.3 55 6.0 -33.8 70 17 292.4 292.5 278.3 293.3 0.25 10 400 6820 -43.9 -50.9 46 7.0 -44.2 75 19 297.9 298.0 280.6 298.3 0.09 11 331 8067 -52.5 -58.5 48 6.0 -52.6 88 18 302.7 302.7 282.5 302.9 0.04 12 305 8594 -53.3 -59.3 48 6.0 -53.4 94 17 308.8 308.8 284.9 308.9 0.04 13 300 8700 -54.3 -61.3 42 7.0 -54.4 95 17 308.8 308.8 284.9 308.9 0.03 14 284 9054 -55.9 -62.9 41 7.0 -56.0 95 15 311.4 311.4 285.9 311.5 0.03 15 250 9880 -52.7 -60.7 37 8.0 -52.9 115 13 327.7 327.7 291.1 327.9 0.04 16 200 11320 -49.9 -61.9 23 12.0 -50.3 120 13 353.8 353.8 297.5 354.0 0.05 17 193 11554 -48.9 -61.9 21 13.0 -49.4 116 13 359.0 359.0 298.5 359.2 0.05 18 150 13210 -49.7 -68.7 9 19.0 -50.3 90 9 384.4 384.4 303.0 384.5 0.02 19 100 15850 -50.3 -74.3 4 24.0 -51.2 115 7 430.5 430.5 308.9 430.6 0.02 20 70 18190 -49.7 -74.7 4 25.0 -51.0 175 7 478.1 478.1 313.3 478.2 0.02 21 60 19196 -50.5 -75.5 4 25.0 -51.8 157 9 497.8 497.8 314.8 498.0 0.02 22 50 20390 -47.9 -73.9 3 26.0 -49.9 135 11 530.6 530.6 317.0 530.8 0.03 23 48 20659 -47.3 -73.3 4 26.0 -49.5 138 11 538.3 538.3 317.4 538.5 0.04 24 45 21084 -49.3 -74.3 4 25.0 -51.2 143 11 543.4 543.4 317.8 543.7 0.04 25 38 22201 -45.1 -71.1 4 26.0 -48.3 156 11 581.0 581.1 319.8 581.5 0.07 26 30 23770 -47.5 -73.5 3 26.0 -50.6 175 11 615.1 615.2 321.3 615.6 0.06 27 28 24226 -48.9 -73.9 4 25.0 -51.8 179 13 623.5 623.5 321.6 624.0 0.06 28 20 26460 -44.7 -70.7 4 26.0 -49.8 200 21 699.4 699.4 324.4 700.6 0.14 29 19 26804 -44.3 -70.3 4 26.0 -49.7 199 20 710.9 711.0 324.8 712.3 0.15 30 13 29324 -48.7 -73.7 4 25.0 -53.7 188 16 777.2 777.3 326.7 778.5 0.14 31 12 29855 -44.9 -70.9 4 26.0 -51.7 185 15 808.7 808.8 327.5 810.9 0.22 32 10 31070 -46.5 -72.5 4 26.0 -53.2 180 13 846.0 846.1 328.4 848.2 0.21 33 9.6 31340 -48.3 -74.3 3 26.0 -54.4 849.1 849.2 328.4 850.9 0.17 34 7.6 32884 -46.7 -72.7 4 26.0 -54.4 914.2 914.4 329.8 917.3 0.27 TRP 284 9054 -55.9 -62.9 41 7.0 -56.0 95 15 311.4 311.4 285.9 311.5 0.03 WND Sounding variables and indices 1000-500 mb thick: 5106.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.14 inches Sfc-500 mean rel hum: 69.44 % Est. max temperature: -3.36 C = 25.95 F Sfc-Lift cond lev (LCL): 876.98 mb = 1179.07 m = 3868.29 ft T: -18.04 C 700-500 lapse rate: 5.42 C/km ThetaE index: 0.76 C Layer 925.0- 867.0 mb Conv cond level (CCL): 589.16 mb = 4114.38 m = 13498.46 ft Mean mixing ratio: 0.76 g/kg Conv temperature: 8.17 C = 46.70 F Cap Strength: 18.39 C Lifted Index: 20.59 C Risk: None Lifted Index @300 mb: 29.29 C Lifted Index @700 mb: 12.40 C Showalter Index: 18.83 C Risk: None Total Totals Index: 27.30 C Risk: None Vertical Totals Index: 15.40 C Cross Totals Index: 11.90 C K Index: -9.40 Risk: None Sweat Index: 31.00 Risk: None Energy Index: 5.01 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 25.48 J/kg Max Up Vert Vel: 7.14 m/s Conv Inhibition (B-): 92219.09 J/kg Cap Strength: 20.32 C Lift Cond Lev (LCL): 817.76 mb = 1699.83 m = 5576.81 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 91 at 10 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 ---------------------------------------------------------- 0 930 738 170 1 -0.2 1.0 | 265 9 9.4 0.9 1 925 779 185 1 0.1 1.0 | 265 10 9.6 0.9 2 850 1413 325 7 4.0 -5.7 | 293 15 13.6 -5.9 3 700 2854 55 11 -9.0 -6.3 | 355 6 0.5 -6.4 4 500 5290 70 17 -16.0 -5.8 | 47 9 -6.4 -5.9 5 400 6820 75 19 -18.4 -4.9 | 60 10 -8.8 -5.0 6 300 8700 95 17 -16.9 1.5 | 100 8 -7.4 1.4 7 284 9054 95 15 -14.9 1.3 | 102 6 -5.4 1.2 8 250 9880 115 13 -11.8 5.5 | 157 6 -2.2 5.4 9 200 11320 120 13 -11.3 6.5 | 165 7 -1.7 6.4 10 150 13210 90 9 -9.0 0.0 | 283 1 0.5 -0.1 11 100 15850 115 7 -6.3 3.0 | 228 4 3.2 2.8 12 70 18190 175 7 -0.6 7.0 | 233 11 8.9 6.8 13 50 20390 135 11 -7.8 7.8 | 193 8 1.8 7.7 14 30 23770 175 11 -1.0 11.0 | 218 14 8.6 10.8 15 20 26460 200 21 7.2 19.7 | 220 26 16.7 19.6 16 10 31070 180 13 0.0 13.0 | 217 16 9.5 12.9 Wind Parameters Mean winds (0-6000m): 60.8 at 12.7 knts Storm direction: 90.8 at 9.5 knts Shear (0-3000m) pos: 2.3 neg: 0.0 tot: 2.3 10-3/s Storm rel Dir Shear (0-3000m): 111.4 deg Storm rel helicity (0-3000m) pos: 70.9 neg: -1.8 tot: 69.1 m^2/s^2 ave: 23.0 10^-3 m/s^2 rel: 0.75 Storm rel vorticity (0-3000m) horiz: 5.0 stream: 3.7 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 0.82 Bulk Shear: 31.08 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 ------------------------------------------------------------------------------- 500 274 3 271 13| 6.0 0.0 6.0| 13.2 -1.8 11.4 22.8 0.41| 7.6 3.1 1000 328 5 289 13| 4.6 0.0 4.6| 40.7 -1.8 38.8 38.8 0.69| 7.5 5.2 1500 346 6 299 13| 3.5 0.0 3.5| 54.7 -1.8 52.8 35.2 0.73| 6.7 4.9 2000 7 7 310 11| 2.9 0.0 2.9| 64.9 -1.8 63.0 31.5 0.73| 6.5 4.7 2500 24 8 320 10| 2.5 0.0 2.5| 68.4 -1.8 66.6 26.6 0.74| 5.7 4.2 3000 35 9 328 9| 2.3 0.0 2.3| 70.9 -1.8 69.1 23.0 0.75| 5.0 3.7 4000 48 10 344 7| 2.0 0.0 2.0| 76.2 -1.8 74.3 18.6 0.76| 4.1 3.1 5000 56 12 360 7| 1.8 0.0 1.8| 80.9 -1.8 79.1 15.8 0.77| 3.5 2.7 6000 61 13 14 7| 1.6 0.0 1.6| 84.4 -1.8 82.6 13.8 0.77| 3.1 2.4 Wrote GIF file: /home/apache/climate/data/raob//U4688/skewt/U4688.skewt.20251010.00.gif