UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025101912.upa.cvt Date: 1200Z 19 OCT 25 Searching for U4688... Searching the city database file for: U4688 ... Date:1200Z 19 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 144 SFC 925 733 -14.7 -16.9 83 2.2 -15.2 250 1 264.3 264.5 262.7 267.3 1.10 2 914 824 -12.5 -14.2 87 1.7 -12.9 263 2 267.4 267.7 265.5 271.3 1.39 3 850 1374 -15.3 -18.2 78 2.9 -15.9 345 9 270.1 270.3 266.8 273.2 1.07 4 841 1455 -15.9 -18.8 78 2.9 -16.4 347 10 270.3 270.5 266.8 273.2 1.03 5 800 1834 -15.3 -17.7 82 2.4 -15.8 354 12 274.8 275.0 270.1 278.3 1.19 6 700 2835 -21.9 -24.7 78 2.8 -22.3 15 19 278.2 278.4 271.4 280.4 0.74 7 500 5240 -37.3 -40.2 74 2.9 -37.5 5 17 287.6 287.6 275.8 288.3 0.23 8 480 5520 -39.5 -43.0 69 3.5 -39.7 357 15 288.2 288.3 276.0 288.8 0.18 9 439 6126 -41.5 -45.1 68 3.6 -41.7 339 11 293.1 293.2 278.4 293.7 0.16 10 400 6750 -45.3 -49.4 63 4.1 -45.4 320 7 296.1 296.1 279.8 296.5 0.11 11 357 7501 -49.9 -54.5 58 4.6 -50.0 316 8 299.7 299.7 281.3 300.0 0.07 12 302 8587 -52.5 -57.5 55 5.0 -52.6 310 9 310.8 310.8 285.7 311.0 0.05 13 300 8630 -52.7 -57.7 55 5.0 -52.8 310 9 311.1 311.1 285.8 311.3 0.05 14 289 8869 -54.3 -59.3 54 5.0 -54.4 290 13 312.1 312.1 286.1 312.3 0.04 15 250 9800 -52.3 -58.3 48 6.0 -52.5 285 13 328.3 328.3 291.3 328.5 0.06 16 213 10840 -50.5 -57.5 43 7.0 -50.7 328 12 346.5 346.5 295.9 346.8 0.08 17 200 11250 -51.3 -58.3 43 7.0 -51.5 345 11 351.5 351.5 297.0 351.8 0.07 18 150 13100 -53.7 -63.7 28 10.0 -54.0 20 11 377.5 377.6 301.9 377.8 0.05 19 100 15710 -54.7 -66.7 21 12.0 -55.1 15 5 422.0 422.1 308.0 422.3 0.05 20 90 16387 -52.7 -65.7 19 13.0 -53.3 353 6 438.9 438.9 309.8 439.3 0.06 21 70 18000 -55.5 -69.5 16 14.0 -56.1 300 7 465.7 465.7 312.3 465.9 0.05 22 62 18777 -55.7 -69.7 16 14.0 -56.3 273 8 481.7 481.7 313.6 482.0 0.05 23 50 20160 -53.5 -69.5 13 16.0 -54.5 225 9 517.4 517.4 316.2 517.8 0.07 24 30 23460 -50.7 -68.7 10 18.0 -52.9 210 11 606.4 606.5 320.9 607.3 0.12 25 25 24646 -51.1 -69.1 10 18.0 -53.5 219 16 637.7 637.8 322.3 638.8 0.14 26 22 25483 -47.7 -67.7 8 20.0 -51.3 225 20 671.6 671.7 323.5 673.2 0.19 27 20 26110 -48.7 -68.7 8 20.0 -52.2 230 23 687.1 687.2 324.1 688.7 0.18 28 16 27571 -49.9 -69.9 8 20.0 -53.7 227 24 728.5 728.6 325.4 730.2 0.19 29 15 27995 -46.5 -68.5 6 22.0 -51.7 226 24 753.3 753.5 326.1 755.7 0.25 30 13 28940 -48.5 -70.5 6 22.0 -53.4 224 24 777.9 778.0 326.7 780.0 0.22 31 12 29471 -44.7 -67.7 6 23.0 -51.3 223 24 809.4 809.5 327.5 812.9 0.35 32 10 30680 -48.3 -71.3 5 23.0 -54.2 220 25 839.3 839.4 328.2 841.9 0.25 33 8.4 31834 -45.9 -69.9 5 24.0 -53.4 891.6 891.8 329.3 895.7 0.37 TRP 289 8869 -54.3 -59.3 54 5.0 -54.4 290 13 312.1 312.1 286.1 312.3 0.04 WND Sounding variables and indices 1000-500 mb thick: 5096.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.15 inches Sfc-500 mean rel hum: 78.27 % Est. max temperature: -3.57 C = 25.58 F Sfc-Lift cond lev (LCL): 892.50 mb = 1004.18 m = 3294.53 ft T: -13.42 C 700-500 lapse rate: 6.40 C/km ThetaE index: 0.00 C Layer 925.0-7490422784.0 mb Conv cond level (CCL): 750.20 mb = 2315.86 m = 7597.89 ft Mean mixing ratio: 1.19 g/kg Conv temperature: -2.75 C = 27.04 F Cap Strength: 6.70 C Lifted Index: 12.72 C Risk: None Lifted Index @300 mb: 27.44 C Lifted Index @700 mb: 6.70 C Showalter Index: 12.05 C Risk: None Total Totals Index: 41.10 C Risk: None Vertical Totals Index: 22.00 C Cross Totals Index: 19.10 C K Index: 1.00 Risk: None Sweat Index: 35.00 Risk: None Energy Index: 3.24 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 15.46 J/kg Max Up Vert Vel: 5.56 m/s Conv Inhibition (B-): 77269.99 J/kg Cap Strength: 12.66 C Lift Cond Lev (LCL): 841.00 mb = 1454.78 m = 4772.83 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 34 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 ---------------------------------------------------------- 0 925 733 250 1 0.9 0.3 | 217 11 6.9 9.1 1 925 741 250 1 0.9 0.3 | 217 11 6.9 9.1 2 850 1374 345 9 2.3 -8.7 | 269 8 8.3 0.1 3 700 2835 15 19 -4.9 -18.4 | 354 10 1.1 -9.6 4 500 5240 5 17 -1.5 -16.9 | 331 9 4.5 -8.1 5 400 6750 320 7 4.5 -5.4 | 252 11 10.5 3.4 6 300 8630 310 9 6.9 -5.8 | 257 13 12.9 3.0 7 289 8869 290 13 12.2 -4.4 | 257 19 18.2 4.3 8 250 9800 285 13 12.6 -3.4 | 254 19 18.6 5.4 9 200 11250 345 11 2.8 -10.6 | 282 9 8.8 -1.8 10 150 13100 20 11 -3.8 -10.3 | 305 3 2.2 -1.5 11 100 15710 15 5 -1.3 -4.8 | 230 6 4.7 4.0 12 70 18000 300 7 6.1 -3.5 | 246 13 12.1 5.3 13 50 20160 225 9 6.4 6.4 | 219 20 12.4 15.2 14 30 23460 210 11 5.5 9.5 | 212 22 11.5 18.3 15 20 26110 230 23 17.6 14.8 | 225 33 23.6 23.6 16 10 30680 220 25 16.1 19.2 | 218 36 22.1 27.9 Wind Parameters Mean winds (0-6000m): 4.3 at 14.2 knts Storm direction: 34.3 at 10.6 knts Shear (0-3000m) pos: 3.3 neg: 0.1 tot: 3.4 10-3/s Storm rel Dir Shear (0-3000m): 127.9 deg Storm rel helicity (0-3000m) pos: 57.3 neg: -3.5 tot: 53.8 m^2/s^2 ave: 17.9 10^-3 m/s^2 rel: 0.82 Storm rel vorticity (0-3000m) horiz: 4.4 stream: 3.6 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 0.84 Bulk Shear: 18.49 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 ------------------------------------------------------------------------------- 500 317 4 237 11| 7.2 0.0 7.2| 24.1 0.0 24.1 48.2 0.92| 8.6 7.9 1000 344 7 254 8| 6.0 0.0 6.0| 36.5 0.0 36.5 36.5 0.89| 7.5 6.7 1500 352 9 270 7| 5.2 0.0 5.2| 45.2 0.0 45.2 30.1 0.92| 6.4 5.9 2000 0 11 289 6| 4.9 0.0 4.9| 55.1 0.0 55.1 27.5 0.93| 6.0 5.5 2500 5 12 306 6| 4.0 0.0 4.0| 57.3 -1.5 55.8 22.3 0.88| 5.1 4.5 3000 7 13 315 6| 3.3 0.1 3.4| 57.3 -3.5 53.8 17.9 0.82| 4.4 3.6 4000 8 15 324 7| 2.5 0.3 2.8| 57.3 -7.3 50.0 12.5 0.72| 3.5 2.5 5000 7 15 325 7| 2.0 0.8 2.8| 57.3 -21.8 35.5 7.1 0.41| 3.4 1.4 6000 4 14 317 7| 1.6 1.3 3.0| 57.3 -44.9 12.4 2.1 0.12| 3.6 0.4 Wrote GIF file: /home/apache/climate/data/raob//U4688/skewt/U4688.skewt.20251019.12.gif