UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025101712.upa.cvt Date: 1200Z 17 OCT 25 Searching for U4688... Searching the city database file for: U4688 ... Date:1200Z 17 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 243 SFC 936 737 -20.7 -23.7 77 3.0 -21.1 260 1 257.3 257.4 256.2 258.9 0.60 2 933 761 -18.9 -21.6 79 2.7 -19.3 264 2 259.3 259.5 258.2 261.3 0.73 3 925 826 -17.7 -20.0 82 2.3 -18.1 275 3 261.2 261.3 259.9 263.5 0.84 4 903 1008 -13.5 -14.9 89 1.4 -13.8 286 6 267.3 267.6 265.3 271.0 1.33 5 850 1470 -13.3 -17.0 74 3.7 -14.1 315 13 272.2 272.4 268.4 275.6 1.19 6 837 1587 -13.7 -17.1 75 3.4 -14.5 315 13 273.0 273.2 268.9 276.4 1.19 7 807 1866 -10.5 -13.1 81 2.6 -11.2 316 14 279.3 279.6 273.6 284.2 1.72 8 734 2589 -14.9 -18.9 71 4.0 -15.8 319 16 282.1 282.3 274.3 285.6 1.17 9 700 2947 -15.7 -23.7 50 8.0 -17.3 320 17 285.1 285.2 275.4 287.6 0.81 10 661 3378 -16.3 -24.3 50 8.0 -17.9 325 19 289.1 289.3 277.5 291.7 0.81 11 500 5430 -27.7 -36.7 42 9.0 -28.7 350 27 299.3 299.3 281.5 300.4 0.33 12 485 5648 -28.9 -38.9 38 10.0 -29.9 349 27 300.4 300.5 281.9 301.3 0.27 13 449 6192 -33.5 -44.5 32 11.0 -34.3 348 27 301.3 301.4 282.1 301.9 0.16 14 400 6990 -39.9 -48.9 38 9.0 -40.4 345 27 303.1 303.2 282.8 303.5 0.11 15 300 8900 -54.7 -61.7 42 7.0 -54.8 345 23 308.2 308.3 284.7 308.4 0.03 16 266 9656 -59.9 -66.9 40 7.0 -60.0 348 24 311.4 311.4 285.9 311.5 0.02 17 250 10040 -61.3 -68.3 39 7.0 -61.4 350 25 314.9 314.9 287.1 315.0 0.02 18 213 11031 -65.3 -71.3 43 6.0 -65.3 350 19 323.5 323.5 289.8 323.5 0.01 19 210 11118 -65.5 -71.5 43 6.0 -65.5 352 18 324.5 324.5 290.1 324.5 0.01 20 200 11420 -60.7 -67.7 39 7.0 -60.8 360 15 336.6 336.6 293.5 336.7 0.02 21 198 11482 -59.7 -66.7 40 7.0 -59.8 360 15 339.2 339.2 294.1 339.3 0.02 22 162 12742 -55.5 -62.5 41 7.0 -55.7 356 12 366.3 366.3 299.9 366.5 0.05 23 150 13230 -55.9 -62.9 41 7.0 -56.1 355 11 373.8 373.8 301.2 374.0 0.05 24 101 15756 -54.1 -64.1 28 10.0 -54.5 24 5 422.0 422.0 308.0 422.4 0.07 25 100 15820 -54.3 -64.3 28 10.0 -54.7 25 5 422.8 422.8 308.1 423.2 0.07 26 70 18090 -55.3 -68.3 18 13.0 -55.9 275 7 466.1 466.1 312.3 466.4 0.06 27 59 19180 -56.5 -70.5 16 14.0 -57.1 257 8 486.7 486.8 314.0 487.0 0.05 28 50 20240 -53.1 -68.1 15 15.0 -54.2 240 9 518.3 518.4 316.2 518.9 0.08 29 49 20370 -52.5 -67.5 15 15.0 -53.7 239 9 522.8 522.8 316.5 523.3 0.09 30 30 23540 -52.1 -70.1 10 18.0 -54.0 225 9 602.6 602.6 320.7 603.4 0.10 31 29 23758 -52.7 -70.7 10 18.0 -54.6 224 10 606.8 606.9 320.9 607.5 0.10 32 21 25859 -47.7 -68.7 7 21.0 -51.5 216 16 680.6 680.7 323.9 682.1 0.18 33 20 26180 -48.3 -69.3 7 21.0 -52.0 215 17 688.3 688.4 324.1 689.8 0.17 34 10 30741 -48.7 -73.7 4 25.0 -54.5 837.8 837.9 328.2 839.6 0.18 TRP 213 11031 -65.3 -71.3 43 6.0 -65.3 350 19 323.5 323.5 289.8 323.5 0.01 WND Sounding variables and indices 1000-500 mb thick: 5187.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.19 inches Sfc-500 mean rel hum: 60.27 % Est. max temperature: 1.67 C = 35.00 F Sfc-Lift cond lev (LCL): 890.71 mb = 1112.85 m = 3651.02 ft T: -13.45 C 700-500 lapse rate: 4.83 C/km ThetaE index: 0.00 C Layer 936.0- -0.0 mb Conv cond level (CCL): 936.00 mb = 737.04 m = 2418.08 ft Mean mixing ratio: 1.16 g/kg Conv temperature: -16.14 C = 2.95 F Cap Strength: 16.84 C Lifted Index: 23.20 C Risk: None Lifted Index @300 mb: 26.26 C Lifted Index @700 mb: 13.81 C Showalter Index: 19.68 C Risk: None Total Totals Index: 25.10 C Risk: None Vertical Totals Index: 14.40 C Cross Totals Index: 10.70 C K Index: -10.60 Risk: None Sweat Index: 53.00 Risk: None Energy Index: 5.27 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 52.72 J/kg Max Up Vert Vel: 10.27 m/s Conv Inhibition (B-): 78423.87 J/kg Cap Strength: 23.19 C Lift Cond Lev (LCL): 850.67 mb = 1463.96 m = 4802.97 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 6 at 15 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 ---------------------------------------------------------- 0 936 737 260 1 1.0 0.2 | 190 15 2.6 14.9 1 925 826 275 3 3.0 -0.3 | 198 15 4.6 14.4 2 850 1470 315 13 9.2 -9.2 | 243 12 10.8 5.5 3 700 2947 320 17 10.9 -13.0 | 262 13 12.6 1.7 4 500 5430 350 27 4.7 -26.6 | 332 13 6.3 -11.9 5 400 6990 345 27 7.0 -26.1 | 323 14 8.6 -11.4 6 300 8900 345 23 6.0 -22.2 | 315 11 7.6 -7.5 7 250 10040 350 25 4.3 -24.6 | 329 12 6.0 -9.9 8 213 11031 350 19 3.3 -18.7 | 309 6 4.9 -4.0 9 200 11420 360 15 -0.0 -15.0 | 281 2 1.6 -0.3 10 150 13230 355 11 1.0 -11.0 | 215 5 2.6 3.7 11 100 15820 25 5 -2.1 -4.5 | 177 10 -0.5 10.2 12 70 18090 275 7 7.0 -0.6 | 211 16 8.6 14.1 13 50 20240 240 9 7.8 4.5 | 206 21 9.4 19.2 14 30 23540 225 9 6.4 6.4 | 201 23 8.0 21.0 15 20 26180 215 17 9.8 13.9 | 202 31 11.4 28.6 Wind Parameters Mean winds (0-6000m): 336.4 at 19.7 knts Storm direction: 6.4 at 14.8 knts Shear (0-3000m) pos: 3.4 neg: 0.0 tot: 3.4 10-3/s Storm rel Dir Shear (0-3000m): 92.9 deg Storm rel helicity (0-3000m) pos: 77.4 neg: 0.0 tot: 77.4 m^2/s^2 ave: 25.8 10^-3 m/s^2 rel: 0.98 Storm rel vorticity (0-3000m) horiz: 3.8 stream: 3.7 10^-3/s Energy-Hel index: 0.02 Bulk Rich Number: 1.52 Bulk Shear: 34.71 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 ------------------------------------------------------------------------------- 500 293 5 208 14| 8.9 0.0 8.9| 34.7 0.0 34.7 69.5 0.98| 9.3 9.1 1000 310 9 223 12| 6.8 0.0 6.8| 51.8 0.0 51.8 51.8 0.97| 7.4 7.1 1500 313 11 232 12| 5.0 0.0 5.0| 56.4 0.0 56.4 37.6 0.97| 5.4 5.2 2000 315 12 238 12| 4.1 0.0 4.1| 61.0 0.0 61.0 30.5 0.97| 4.4 4.3 2500 317 13 243 12| 3.7 0.0 3.7| 68.2 0.0 68.2 27.3 0.97| 4.0 3.9 3000 319 14 249 12| 3.4 0.0 3.4| 77.4 0.0 77.4 25.8 0.98| 3.8 3.7 4000 325 16 262 11| 3.1 0.0 3.1| 97.3 0.0 97.3 24.3 0.98| 3.7 3.6 5000 333 18 278 10| 2.8 0.0 2.8|112.8 -1.5 111.2 22.2 0.95| 3.5 3.3 6000 336 20 289 10| 2.3 0.1 2.4|112.8 -6.7 106.0 17.7 0.87| 3.0 2.6 Wrote GIF file: /home/apache/climate/data/raob//U4688/skewt/U4688.skewt.20251017.12.gif