UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025041512.upa.cvt Date: 1200Z 15 APR 25 Searching for U4688... Searching the city database file for: U4688 ... Date:1200Z 15 APR 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 35 1 925 660 20 3 SFC 916 738 -2.1 -6.2 73 4.1 -3.6 20 3 277.9 278.4 274.2 285.3 2.62 3 887 994 -1.7 -7.7 64 6.0 -3.8 61 6 280.9 281.3 275.5 287.8 2.41 4 850 1331 -4.9 -10.9 63 6.0 -6.8 115 11 281.0 281.3 274.9 286.6 1.95 5 729 2517 -14.7 -15.7 92 1.0 -15.0 170 9 282.9 283.2 275.3 287.4 1.54 6 717 2643 -13.3 -14.1 94 0.8 -13.5 176 9 285.8 286.1 277.2 291.1 1.79 7 714 2675 -13.3 -14.1 94 0.8 -13.5 178 9 286.1 286.4 277.4 291.4 1.80 8 700 2826 -14.1 -15.0 93 0.9 -14.3 185 9 286.9 287.2 277.6 291.9 1.70 9 608 3883 -18.3 -20.1 86 1.8 -18.7 200 25 293.8 294.1 280.4 297.8 1.27 10 603 3944 -18.7 -20.8 83 2.1 -19.1 201 26 294.1 294.3 280.4 297.8 1.21 11 500 5310 -28.3 -30.0 85 1.7 -28.5 220 48 298.5 298.6 281.6 300.6 0.63 12 434 6313 -35.7 -37.6 83 1.9 -35.9 223 65 301.5 301.5 282.4 302.7 0.35 13 400 6880 -37.9 -39.7 83 1.8 -38.1 225 75 305.7 305.8 284.1 306.8 0.30 14 375 7322 -39.9 -41.8 82 1.9 -40.1 226 79 308.8 308.8 285.2 309.7 0.26 15 325 8280 -48.5 -50.5 80 2.0 -48.6 229 88 309.8 309.8 285.4 310.2 0.11 16 307 8651 -51.8 -53.8 78 2.1 -51.8 230 91 310.3 310.3 285.5 310.6 0.08 17 300 8800 -53.1 -55.2 78 2.1 -53.2 230 89 310.5 310.5 285.6 310.8 0.07 18 297 8864 -53.5 -55.6 78 2.1 -53.5 230 87 310.8 310.8 285.7 311.1 0.07 19 284 9149 -57.1 -59.4 75 2.3 -57.1 230 79 309.7 309.7 285.2 309.8 0.04 20 250 9960 -53.5 -55.9 75 2.4 -53.6 235 56 326.5 326.5 290.8 326.8 0.08 21 200 11400 -48.7 -51.6 72 2.9 -48.8 240 29 355.7 355.7 298.0 356.4 0.16 22 196 11534 -48.1 -51.0 72 2.9 -48.3 240 28 358.7 358.7 298.6 359.4 0.18 23 173 12356 -50.1 -53.4 68 3.3 -50.3 243 22 368.4 368.4 300.4 369.1 0.15 24 150 13290 -50.7 -54.6 63 3.9 -50.9 245 15 382.7 382.7 302.8 383.4 0.15 25 105 15605 -52.7 -58.7 48 6.0 -53.1 267 10 420.0 420.0 307.8 420.7 0.13 26 100 15920 -53.1 -59.1 48 6.0 -53.4 270 9 425.1 425.2 308.4 425.8 0.13 27 94 16318 -53.9 -59.9 48 6.0 -54.2 277 9 431.1 431.2 309.0 431.8 0.13 28 70 18210 -54.5 -60.5 47 6.0 -54.9 310 11 467.8 467.8 312.5 468.7 0.16 29 50 20360 -56.5 -63.5 41 7.0 -57.0 300 17 510.3 510.4 315.7 511.3 0.15 30 45 21027 -56.9 -64.9 36 8.0 -57.5 299 19 525.0 525.0 316.6 525.9 0.14 31 40 21770 -57.7 -65.7 35 8.0 -58.3 298 22 541.0 541.0 317.6 541.9 0.14 32 30 23590 -56.1 -65.1 31 9.0 -57.1 295 29 591.7 591.8 320.3 593.2 0.20 33 22 25575 -53.3 -62.3 33 9.0 -54.9 295 29 654.9 655.1 323.0 658.2 0.40 34 21 25874 -53.3 -63.3 29 10.0 -55.1 295 29 663.7 663.8 323.3 666.7 0.37 35 21 25874 -52.7 -62.7 29 10.0 -54.5 295 29 665.5 665.7 323.4 668.8 0.40 36 20 26190 -51.5 -61.5 29 10.0 -53.7 295 29 678.5 678.7 323.9 682.6 0.49 37 19 26524 -50.1 -60.1 30 10.0 -52.5 692.9 693.2 324.4 698.2 0.61 38 13 28999 -50.9 -61.9 26 11.0 -54.0 769.6 769.9 326.7 776.4 0.71 39 12 29524 -47.5 -59.5 24 12.0 -51.8 799.4 800.0 327.5 809.8 1.05 TRP 284 9149 -57.1 -59.4 75 2.3 -57.1 230 79 309.7 309.7 285.2 309.8 0.04 WND 307 8651 -51.8 -53.8 78 2.1 -51.8 230 91 310.3 310.3 285.5 310.6 0.08 Sounding variables and indices 1000-500 mb thick: 5275.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.30 inches Sfc-500 mean rel hum: 82.01 % Est. max temperature: 2.19 C = 35.94 F Sfc-Lift cond lev (LCL): 858.84 mb = 1249.08 m = 4097.97 ft T: -4.12 C 700-500 lapse rate: 5.72 C/km ThetaE index: 1.15 C Layer 850.0- 729.0 mb Conv cond level (CCL): 775.79 mb = 2036.65 m = 6681.83 ft Mean mixing ratio: 2.17 g/kg Conv temperature: 2.04 C = 35.67 F Cap Strength: 8.12 C Lifted Index: 10.29 C Risk: None Lifted Index @300 mb: 16.78 C Lifted Index @700 mb: 3.63 C Showalter Index: 10.47 C Risk: None Total Totals Index: 40.80 C Risk: None Vertical Totals Index: 23.40 C Cross Totals Index: 17.40 C K Index: 11.60 Risk: None Sweat Index: 70.00 Risk: None Energy Index: 2.88 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 11.02 J/kg Max Up Vert Vel: 4.70 m/s Conv Inhibition (B-): 65964.61 J/kg Cap Strength: 10.19 C Lift Cond Lev (LCL): 793.53 mb = 1862.04 m = 6108.98 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 244 at 22 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 ---------------------------------------------------------- 0 916 738 20 3 -1.0 -2.8 | 59 25 -21.3 -12.6 1 850 1331 115 11 -10.0 4.6 | 80 31 -30.2 -5.1 2 700 2826 185 9 0.8 9.0 | 88 19 -19.5 -0.8 3 500 5310 220 48 30.9 36.8 | 201 29 10.6 27.0 4 400 6880 225 75 53.0 53.0 | 217 54 32.8 43.3 5 307 8651 230 91 69.7 58.5 | 225 69 49.5 48.7 6 300 8800 230 89 68.2 57.2 | 225 67 47.9 47.4 7 284 9149 230 79 60.5 50.8 | 224 57 40.3 41.0 8 250 9960 235 56 45.9 32.1 | 229 34 25.6 22.4 9 200 11400 240 29 25.1 14.5 | 226 7 4.9 4.7 10 150 13290 245 15 13.6 6.3 | 63 7 -6.6 -3.4 11 100 15920 270 9 9.0 -0.0 | 49 15 -11.2 -9.8 12 70 18210 310 11 8.4 -7.1 | 35 21 -11.8 -16.8 13 50 20360 300 17 14.7 -8.5 | 17 19 -5.5 -18.3 14 30 23590 295 29 26.3 -12.3 | 345 23 6.0 -22.0 15 20 26190 295 29 26.3 -12.3 | 345 23 6.0 -22.0 Wind Parameters Mean winds (0-6000m): 214.2 at 30.0 knts Storm direction: 244.2 at 22.5 knts Shear (0-3000m) pos: 4.5 neg: 0.0 tot: 4.5 10-3/s Storm rel Dir Shear (0-3000m): 74.1 deg Storm rel helicity (0-3000m) pos: 186.1 neg: -1.2 tot: 185.0 m^2/s^2 ave: 61.7 10^-3 m/s^2 rel: 0.71 Storm rel vorticity (0-3000m) horiz: 7.1 stream: 5.0 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 0.07 Bulk Shear: 148.04 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 96 6 71 28| 10.0 0.0 10.0| 62.3 0.0 62.3 124.7 0.71| 11.6 8.2 1000 113 8 77 29| 6.2 0.0 6.2|104.2 0.0 104.2 104.2 0.74| 9.2 6.8 1500 125 9 81 28| 4.2 0.0 4.2|115.0 0.0 115.0 76.7 0.67| 7.5 5.1 2000 135 9 83 27| 3.1 0.0 3.1|116.1 -1.2 115.0 57.5 0.57| 6.7 3.8 2500 148 10 86 25| 3.8 0.0 3.8|147.2 -1.2 146.1 58.4 0.64| 6.8 4.3 3000 165 11 93 23| 4.5 0.0 4.5|186.1 -1.2 185.0 61.7 0.71| 7.1 5.0 4000 192 16 110 18| 5.4 0.0 5.4|274.2 -1.2 273.0 68.3 0.78| 7.5 5.9 5000 208 23 136 14| 6.0 0.0 6.0|365.8 -1.2 364.6 72.9 0.76| 7.9 6.0 6000 214 30 167 15| 6.5 0.0 6.5|443.7 -1.2 442.5 73.8 0.69| 8.1 5.6 Wrote GIF file: /home/apache/climate/data/raob//U4688/skewt/U4688.skewt.20250415.12.gif