UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025100912.upa.cvt Date: 1200Z 9 OCT 25 Searching for U4688... Searching the city database file for: U4688 ... Date:1200Z 9 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 181 SFC 929 741 -15.9 -20.1 70 4.2 -16.6 260 3 262.7 262.9 261.0 265.0 0.83 2 925 774 -14.7 -18.8 71 4.1 -15.4 260 5 264.3 264.4 262.4 266.9 0.94 3 917 840 -13.3 -17.3 72 4.0 -14.1 267 5 266.4 266.5 264.1 269.4 1.07 4 894 1034 -13.1 -17.9 67 4.8 -14.1 286 6 268.5 268.7 265.6 271.5 1.04 5 850 1416 -16.3 -21.3 65 5.0 -17.2 325 7 269.1 269.2 265.6 271.4 0.82 6 848 1434 -16.5 -21.5 65 5.0 -17.4 326 7 269.0 269.2 265.6 271.4 0.81 7 772 2138 -17.5 -22.4 66 4.9 -18.4 355 8 275.3 275.4 269.7 277.7 0.82 8 733 2525 -20.1 -25.1 64 5.0 -20.9 11 9 276.6 276.7 270.3 278.6 0.68 9 700 2866 -20.7 -26.7 59 6.0 -21.6 25 9 279.6 279.7 272.0 281.4 0.61 10 611 3862 -24.3 -28.6 68 4.3 -24.9 29 14 286.5 286.6 275.8 288.4 0.59 11 500 5290 -34.9 -38.9 67 4.0 -35.2 35 21 290.5 290.5 277.3 291.4 0.26 12 400 6810 -45.9 -49.7 65 3.8 -46.0 40 31 295.3 295.4 279.4 295.7 0.10 13 367 7375 -50.3 -54.2 63 3.9 -50.4 41 31 296.8 296.8 280.0 297.1 0.07 14 329 8080 -53.3 -57.3 62 4.0 -53.4 43 31 302.1 302.1 282.3 302.3 0.05 15 300 8670 -54.5 -58.5 61 4.0 -54.6 45 31 308.5 308.5 284.8 308.7 0.05 16 275 9234 -55.9 -59.8 62 3.9 -56.0 50 29 314.3 314.3 286.9 314.4 0.04 17 258 9646 -56.1 -60.0 61 3.9 -56.2 53 24 319.8 319.8 288.7 319.9 0.05 18 250 9850 -55.3 -59.5 59 4.2 -55.4 55 21 323.9 323.9 290.0 324.1 0.05 19 230 10381 -53.7 -58.3 57 4.6 -53.8 61 17 334.1 334.1 292.9 334.4 0.06 20 200 11280 -51.7 -57.7 49 6.0 -51.9 70 9 350.9 350.9 296.9 351.2 0.08 21 172 12264 -49.1 -57.1 39 8.0 -49.5 73 9 370.7 370.7 300.8 371.1 0.10 22 150 13160 -50.1 -60.1 30 10.0 -50.5 75 9 383.7 383.8 302.9 384.1 0.08 23 100 15800 -49.9 -65.9 14 16.0 -50.7 120 5 431.3 431.3 309.0 431.6 0.05 24 70 18140 -49.9 -69.9 8 20.0 -51.1 215 5 477.6 477.6 313.3 477.9 0.04 25 57 19482 -50.9 -71.9 7 21.0 -52.2 209 7 504.3 504.3 315.2 504.5 0.04 26 50 20340 -49.1 -71.1 6 22.0 -50.8 205 9 527.8 527.8 316.8 528.1 0.05 27 41 21647 -45.9 -69.9 5 24.0 -48.7 189 10 566.6 566.6 319.0 567.1 0.08 28 33 23081 -48.3 -73.3 4 25.0 -51.0 172 11 596.5 596.5 320.5 596.9 0.06 29 30 23710 -46.1 -72.1 4 26.0 -49.6 165 11 619.0 619.0 321.5 619.5 0.08 30 28 24169 -45.3 -71.3 4 26.0 -49.2 191 12 633.5 633.6 322.1 634.2 0.09 31 20 26410 -46.1 -72.1 4 26.0 -50.7 320 15 695.1 695.1 324.3 696.0 0.11 32 16 27895 -45.9 -71.9 4 26.0 -51.2 741.5 741.6 325.7 742.9 0.15 TRP 275 9234 -55.9 -59.8 62 3.9 -56.0 50 29 314.3 314.3 286.9 314.4 0.04 WND Sounding variables and indices 1000-500 mb thick: 5109.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.13 inches Sfc-500 mean rel hum: 65.48 % Est. max temperature: -4.19 C = 24.45 F Sfc-Lift cond lev (LCL): 867.42 mb = 1262.30 m = 4141.35 ft T: -15.01 C 700-500 lapse rate: 5.86 C/km ThetaE index: 0.11 C Layer 850.0- 772.0 mb Conv cond level (CCL): 642.29 mb = 3496.40 m = 11471.00 ft Mean mixing ratio: 0.94 g/kg Conv temperature: 4.87 C = 40.77 F Cap Strength: 14.18 C Lifted Index: 16.29 C Risk: None Lifted Index @300 mb: 26.69 C Lifted Index @700 mb: 9.05 C Showalter Index: 15.82 C Risk: None Total Totals Index: 32.20 C Risk: None Vertical Totals Index: 18.60 C Cross Totals Index: 13.60 C K Index: -8.70 Risk: None Sweat Index: 35.00 Risk: None Energy Index: 4.24 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 18.49 J/kg Max Up Vert Vel: 6.08 m/s Conv Inhibition (B-): 60154.10 J/kg Cap Strength: 16.20 C Lift Cond Lev (LCL): 813.61 mb = 1744.44 m = 5723.16 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 59 at 11 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 ---------------------------------------------------------- 0 929 741 260 3 3.0 0.5 | 243 14 12.7 6.4 1 925 774 260 5 4.9 0.9 | 245 16 14.6 6.7 2 850 1416 325 7 4.0 -5.7 | 269 14 13.7 0.1 3 700 2866 25 9 -3.8 -8.2 | 291 6 5.9 -2.3 4 500 5290 35 21 -12.0 -17.2 | 12 12 -2.3 -11.3 5 400 6810 40 31 -19.9 -23.7 | 30 21 -10.2 -17.9 6 300 8670 45 31 -21.9 -21.9 | 37 20 -12.2 -16.1 7 275 9234 50 29 -22.2 -18.6 | 44 18 -12.5 -12.8 8 250 9850 55 21 -17.2 -12.0 | 50 10 -7.5 -6.2 9 200 11280 70 9 -8.5 -3.1 | 205 3 1.3 2.8 10 150 13160 75 9 -8.7 -2.3 | 196 4 1.0 3.5 11 100 15800 120 5 -4.3 2.5 | 213 10 5.4 8.4 12 70 18140 215 5 2.9 4.1 | 232 16 12.6 10.0 13 50 20340 205 9 3.8 8.2 | 224 19 13.5 14.0 14 30 23710 165 11 -2.8 10.6 | 203 18 6.9 16.5 15 20 26410 320 15 9.6 -11.5 | 286 20 19.4 -5.6 Wind Parameters Mean winds (0-6000m): 28.9 at 15.1 knts Storm direction: 58.9 at 11.4 knts Shear (0-3000m) pos: 2.6 neg: 0.0 tot: 2.6 10-3/s Storm rel Dir Shear (0-3000m): 87.0 deg Storm rel helicity (0-3000m) pos: 47.4 neg: 0.0 tot: 47.4 m^2/s^2 ave: 15.8 10^-3 m/s^2 rel: 0.71 Storm rel vorticity (0-3000m) horiz: 3.7 stream: 2.6 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.47 Bulk Shear: 39.71 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 ------------------------------------------------------------------------------- 500 285 6 254 16| 5.1 0.0 5.1| 21.6 0.0 21.6 43.2 0.80| 6.8 5.4 1000 311 6 263 15| 3.8 0.0 3.8| 32.6 0.0 32.6 32.6 0.79| 5.4 4.2 1500 327 7 269 13| 3.1 0.0 3.1| 37.4 0.0 37.4 25.0 0.74| 4.6 3.4 2000 341 7 275 12| 2.7 0.0 2.7| 39.9 0.0 39.9 20.0 0.66| 4.2 2.8 2500 354 8 280 11| 2.6 0.0 2.6| 43.3 0.0 43.3 17.3 0.68| 3.9 2.7 3000 3 8 285 10| 2.6 0.0 2.6| 47.4 0.0 47.4 15.8 0.71| 3.7 2.6 4000 16 10 300 8| 2.6 0.0 2.6| 56.3 0.0 56.3 14.1 0.73| 3.4 2.5 5000 24 12 320 7| 2.7 0.0 2.7| 67.0 0.0 67.0 13.4 0.71| 3.4 2.4 6000 29 15 342 8| 2.8 0.0 2.8| 81.0 0.0 81.0 13.5 0.67| 3.4 2.2 Wrote GIF file: /home/apache/climate/data/raob//U4688/skewt/U4688.skewt.20251009.12.gif