UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025100712.upa.cvt Date: 1200Z 7 OCT 25 Searching for U4688... Searching the city database file for: U4688 ... Date:1200Z 7 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 166 SFC 928 743 -12.1 -16.8 68 4.7 -13.1 290 3 266.7 266.9 264.4 269.8 1.10 2 925 768 -12.1 -17.1 66 5.0 -13.2 300 3 266.9 267.1 264.6 269.9 1.08 3 850 1408 -15.3 -21.3 60 6.0 -16.4 10 5 270.1 270.3 266.3 272.5 0.82 4 700 2855 -24.3 -27.5 75 3.2 -24.7 75 13 275.6 275.7 269.5 277.3 0.57 5 684 3022 -25.3 -28.3 76 3.0 -25.7 74 13 276.3 276.4 269.9 277.9 0.54 6 664 3236 -25.3 -28.3 76 3.0 -25.7 72 13 278.6 278.7 271.4 280.3 0.56 7 521 4955 -34.5 -38.3 68 3.8 -34.8 57 11 287.6 287.6 275.9 288.4 0.27 8 500 5240 -36.7 -40.3 69 3.6 -37.0 55 11 288.3 288.3 276.2 289.0 0.23 9 400 6750 -47.1 -50.7 66 3.6 -47.2 85 7 293.8 293.8 278.7 294.1 0.09 10 369 7278 -51.1 -54.7 65 3.6 -51.2 114 9 295.3 295.3 279.3 295.5 0.06 11 300 8610 -54.9 -58.9 61 4.0 -55.0 190 15 308.0 308.0 284.6 308.1 0.05 12 274 9190 -56.3 -60.3 61 4.0 -56.3 205 9 314.0 314.0 286.8 314.2 0.04 13 250 9780 -52.3 -56.9 58 4.6 -52.4 220 5 328.3 328.3 291.3 328.6 0.07 14 244 9938 -50.9 -55.4 59 4.5 -51.1 224 5 332.7 332.7 292.5 333.0 0.09 15 219 10645 -49.3 -54.3 56 5.0 -49.5 244 5 345.6 345.6 295.7 346.1 0.11 16 200 11240 -49.9 -56.9 44 7.0 -50.2 260 5 353.8 353.8 297.5 354.1 0.09 17 150 13130 -49.9 -61.9 23 12.0 -50.4 280 5 384.1 384.1 302.9 384.4 0.06 18 100 15780 -48.9 -65.9 12 17.0 -49.8 225 3 433.2 433.3 309.2 433.5 0.05 19 71 18018 -50.5 -70.5 8 20.0 -51.6 249 11 474.4 474.4 313.0 474.7 0.04 20 70 18110 -49.9 -70.9 7 21.0 -51.1 250 11 477.6 477.6 313.3 477.9 0.04 21 65 18597 -48.1 -70.1 6 22.0 -49.7 246 12 491.8 491.8 314.4 492.1 0.05 22 56 19575 -50.9 -72.9 6 22.0 -52.2 237 14 506.8 506.8 315.4 507.1 0.04 23 50 20320 -47.3 -71.3 5 24.0 -49.4 230 15 532.0 532.0 317.1 532.3 0.05 24 42 21465 -49.3 -73.3 4 24.0 -51.3 235 18 554.3 554.3 318.3 554.6 0.04 25 37 22302 -45.1 -71.1 4 26.0 -48.3 239 20 585.5 585.5 319.9 586.0 0.07 26 30 23700 -45.3 -71.3 4 26.0 -49.0 245 23 621.1 621.2 321.6 621.8 0.08 27 24 25193 -42.5 -69.5 4 27.0 -47.8 251 19 670.2 670.3 323.4 671.4 0.14 28 20 26400 -50.3 -75.3 4 25.0 -53.6 255 15 682.2 682.2 323.9 682.8 0.07 29 15 28306 -43.7 -69.7 4 26.0 -50.1 762.7 762.8 326.3 764.7 0.21 30 13 29260 -47.1 -73.1 4 26.0 -52.7 782.7 782.8 326.8 784.2 0.15 31 11 30370 -45.7 -71.7 4 26.0 -52.4 826.1 826.2 327.9 828.4 0.22 TRP 274 9190 -56.3 -60.3 61 4.0 -56.3 205 9 314.0 314.0 286.8 314.2 0.04 WND Sounding variables and indices 1000-500 mb thick: 5074.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.12 inches Sfc-500 mean rel hum: 69.48 % Est. max temperature: -6.28 C = 20.70 F Sfc-Lift cond lev (LCL): 860.09 mb = 1318.65 m = 4326.21 ft T: -14.85 C 700-500 lapse rate: 5.20 C/km ThetaE index: 0.00 C Layer 928.0- 0.0 mb Conv cond level (CCL): 743.07 mb = 2410.03 m = 7906.83 ft Mean mixing ratio: 0.92 g/kg Conv temperature: -5.02 C = 22.96 F Cap Strength: 13.56 C Lifted Index: 13.93 C Risk: None Lifted Index @300 mb: 25.82 C Lifted Index @700 mb: 4.92 C Showalter Index: 13.20 C Risk: None Total Totals Index: 36.80 C Risk: None Vertical Totals Index: 21.40 C Cross Totals Index: 15.40 C K Index: -3.10 Risk: None Sweat Index: 21.00 Risk: None Energy Index: 3.45 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 11.82 J/kg Max Up Vert Vel: 4.86 m/s Conv Inhibition (B-): 77916.33 J/kg Cap Strength: 13.89 C Lift Cond Lev (LCL): 802.05 mb = 1840.76 m = 6039.17 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 92 at 7 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 ---------------------------------------------------------- 0 928 743 290 3 2.8 -1.0 | 277 10 10.1 -1.3 1 925 768 300 3 2.6 -1.5 | 280 10 9.9 -1.8 2 850 1408 10 5 -0.9 -4.9 | 309 8 6.4 -5.2 3 700 2855 75 13 -12.6 -3.4 | 55 6 -5.3 -3.7 4 500 5240 55 11 -9.0 -6.3 | 15 7 -1.8 -6.6 5 400 6750 85 7 -7.0 -0.6 | 343 1 0.3 -0.9 6 300 8610 190 15 2.6 14.8 | 214 18 9.9 14.5 7 274 9190 205 9 3.8 8.2 | 235 14 11.1 7.9 8 250 9780 220 5 3.2 3.8 | 251 11 10.5 3.5 9 200 11240 260 5 4.9 0.9 | 267 12 12.2 0.6 10 150 13130 280 5 4.9 -0.9 | 275 12 12.2 -1.2 11 100 15780 225 3 2.1 2.1 | 259 10 9.4 1.8 12 70 18110 250 11 10.3 3.8 | 259 18 17.6 3.5 13 50 20320 230 15 11.5 9.6 | 243 21 18.7 9.3 14 30 23700 245 23 20.8 9.7 | 251 30 28.1 9.4 15 20 26400 255 15 14.5 3.9 | 261 22 21.7 3.6 Wind Parameters Mean winds (0-6000m): 62.3 at 9.7 knts Storm direction: 92.3 at 7.3 knts Shear (0-3000m) pos: 2.6 neg: 0.2 tot: 2.8 10-3/s Storm rel Dir Shear (0-3000m): 121.9 deg Storm rel helicity (0-3000m) pos: 37.0 neg: -2.8 tot: 34.2 m^2/s^2 ave: 11.4 10^-3 m/s^2 rel: 0.80 Storm rel vorticity (0-3000m) horiz: 3.5 stream: 2.8 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.81 Bulk Shear: 14.59 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 ------------------------------------------------------------------------------- 500 330 4 291 10| 4.2 0.0 4.2| 10.5 0.0 10.5 21.1 0.96| 4.3 4.2 1000 360 5 304 9| 4.0 0.0 4.0| 18.5 0.0 18.5 18.5 0.94| 4.2 4.0 1500 21 6 318 8| 3.9 0.0 3.9| 26.5 0.0 26.5 17.7 0.95| 4.3 4.1 2000 43 7 337 6| 3.8 0.0 3.8| 35.1 0.0 35.1 17.6 0.96| 4.5 4.3 2500 55 8 354 5| 3.1 0.0 3.1| 37.0 -1.1 35.9 14.4 0.90| 4.0 3.6 3000 59 9 5 5| 2.6 0.2 2.8| 37.0 -2.8 34.2 11.4 0.80| 3.5 2.8 4000 61 10 14 5| 1.9 0.4 2.3| 37.0 -6.1 30.9 7.7 0.65| 2.9 1.9 5000 61 10 15 5| 1.5 0.4 1.9| 37.6 -7.7 29.9 6.0 0.55| 2.6 1.4 6000 62 10 15 5| 1.1 0.3 1.5| 37.7 -8.1 29.6 4.9 0.45| 2.5 1.1 Wrote GIF file: /home/apache/climate/data/raob//U4688/skewt/U4688.skewt.20251007.12.gif