UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025121300.upa.cvt Date: 0000Z 13 DEC 25 Searching for U6781... Searching the city database file for: U6781 ... Date:0000Z 13 DEC 25 Station: U6781 WMO ident: 26781 Latitude: 54.75 Longitude: 32.07 ------------------------------------------------------------------------------- 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 178 340 9 SFC 992 241 -3.3 -8.3 68 5.0 -4.8 340 9 270.5 270.8 268.7 276.1 2.06 2 925 788 -9.1 -15.1 62 6.0 -10.5 350 25 270.0 270.2 267.1 273.6 1.28 3 869 1268 -13.7 -17.4 74 3.7 -14.5 354 29 270.1 270.3 266.8 273.2 1.12 4 852 1419 -12.1 -15.9 73 3.8 -13.0 355 31 273.3 273.5 269.2 277.0 1.30 5 850 1437 -12.3 -16.3 72 4.0 -13.2 355 31 273.3 273.5 269.2 276.8 1.26 6 745 2431 -19.3 -34.3 25 15.0 -21.1 348 38 276.1 276.2 269.3 277.0 0.28 7 700 2893 -20.5 -38.5 18 18.0 -22.4 345 42 279.8 279.8 271.4 280.4 0.20 8 667 3249 -22.1 -41.1 16 19.0 -23.9 344 51 281.9 281.9 272.5 282.4 0.16 9 642 3531 -20.9 -41.9 13 21.0 -22.9 342 58 286.3 286.4 275.0 286.8 0.15 10 602 4005 -22.5 -46.5 9 24.0 -24.5 341 71 289.8 289.8 276.7 290.1 0.10 11 554 4621 -17.9 -46.9 6 29.0 -21.0 338 86 302.2 302.2 282.4 302.6 0.10 12 528 4979 -20.7 -34.7 27 14.0 -22.7 337 96 303.0 303.1 283.1 304.3 0.38 13 500 5380 -22.9 -35.9 29 13.0 -24.6 335 106 305.1 305.2 284.0 306.4 0.36 14 469 5846 -26.7 -38.3 33 11.6 -28.0 335 114 306.1 306.2 284.2 307.1 0.30 15 456 6049 -28.3 -39.3 34 11.0 -29.5 335 112 306.5 306.6 284.4 307.5 0.28 16 400 6980 -33.1 -43.1 36 10.0 -34.0 335 104 312.0 312.0 286.3 312.7 0.21 17 300 8950 -43.5 -52.5 36 9.0 -43.9 325 110 324.0 324.1 290.1 324.4 0.10 18 273 9580 -47.1 -56.1 35 9.0 -47.4 330 107 327.7 327.7 291.2 328.0 0.07 19 250 10160 -49.3 -58.3 34 9.0 -49.6 335 104 332.8 332.8 292.5 333.0 0.06 20 200 11610 -53.9 -62.9 32 9.0 -54.1 335 104 347.4 347.4 296.1 347.6 0.04 21 194 11804 -54.7 -63.7 32 9.0 -54.9 335 104 349.2 349.2 296.5 349.3 0.04 22 191 11903 -54.9 -63.9 32 9.0 -55.1 335 103 350.4 350.4 296.8 350.6 0.04 23 150 13450 -52.5 -61.5 33 9.0 -52.8 335 87 379.6 379.6 302.2 379.9 0.06 24 120 14894 -52.9 -61.9 33 9.0 -53.3 335 83 403.9 403.9 305.7 404.3 0.08 25 116 15115 -50.5 -59.5 34 9.0 -51.0 335 82 412.3 412.3 306.9 412.8 0.11 26 101 16016 -52.3 -62.3 29 10.0 -52.8 335 79 425.5 425.5 308.4 425.9 0.09 27 100 16080 -52.5 -62.5 29 10.0 -53.0 335 79 426.3 426.3 308.5 426.7 0.09 28 74 17993 -60.3 -70.3 26 10.0 -60.6 322 61 448.2 448.2 310.7 448.4 0.04 29 70 18340 -60.5 -70.5 26 10.0 -60.8 320 58 455.0 455.0 311.3 455.2 0.04 30 50 20420 -65.3 -75.3 24 10.0 -65.5 320 56 489.6 489.6 314.2 489.8 0.03 31 49 20543 -65.3 -75.3 24 10.0 -65.5 320 56 492.4 492.4 314.4 492.6 0.03 32 47 20798 -62.3 -72.3 25 10.0 -62.7 319 55 505.5 505.6 315.4 505.8 0.05 33 37 22266 -64.1 -74.1 24 10.0 -64.4 314 52 536.7 536.7 317.3 537.0 0.05 34 31 23357 -60.7 -71.7 22 11.0 -61.3 311 50 573.8 573.8 319.4 574.3 0.08 35 30 23560 -61.7 -72.7 22 11.0 -62.3 310 50 576.4 576.5 319.5 576.9 0.07 36 26 24439 -65.7 -75.7 24 10.0 -66.1 308 49 589.2 589.2 320.1 589.5 0.05 37 21 25734 -66.9 -76.9 23 10.0 -67.3 306 48 622.6 622.7 321.6 623.0 0.05 38 20 26030 -65.7 -75.7 24 10.0 -66.2 305 48 635.1 635.1 322.1 635.6 0.07 39 18 26671 -63.5 -74.5 21 11.0 -64.3 305 51 661.4 661.5 323.2 662.2 0.09 40 10 30260 -64.9 -75.9 21 11.0 -66.0 305 69 777.3 777.4 326.7 778.5 0.13 41 7.9 31696 -65.5 -76.5 20 11.0 -66.8 829.1 829.2 328.0 830.6 0.15 TRP 194 11804 -54.7 -63.7 32 9.0 -54.9 335 104 349.2 349.2 296.5 349.3 0.04 WND 469 5846 -26.7 -38.3 33 11.6 -28.0 335 114 306.1 306.2 284.2 307.1 0.30 Sounding variables and indices 1000-500 mb thick: 5202.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.16 inches Sfc-500 mean rel hum: 33.98 % Est. max temperature: -0.30 C = 31.45 F Sfc-Lift cond lev (LCL): 916.82 mb = 856.30 m = 2809.36 ft T: -9.75 C 700-500 lapse rate: 0.97 C/km ThetaE index: 2.87 C Layer 925.0- 852.0 mb Conv cond level (CCL): 814.52 mb = 1758.37 m = 5768.86 ft Mean mixing ratio: 1.52 g/kg Conv temperature: 0.43 C = 32.78 F Cap Strength: 24.22 C Lifted Index: 25.48 C Risk: None Lifted Index @300 mb: 35.23 C Lifted Index @700 mb: 6.49 C Showalter Index: 23.49 C Risk: None Total Totals Index: 17.20 C Risk: None Vertical Totals Index: 10.60 C Cross Totals Index: 6.60 C K Index: -23.70 Risk: None Sweat Index: 168.00 Risk: None Energy Index: 6.12 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 2.17 J/kg Max Up Vert Vel: 2.08 m/s Conv Inhibition (B-): 63161.20 J/kg Cap Strength: 25.19 C Lift Cond Lev (LCL): 866.61 mb = 1289.11 m = 4229.30 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 10 at 45 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 ---------------------------------------------------------- 0 992 241 340 9 3.1 -8.5 | 196 38 10.7 36.3 1 925 788 350 25 4.3 -24.6 | 211 23 12.0 20.1 2 850 1437 355 31 2.7 -30.9 | 217 17 10.3 13.8 3 700 2893 345 42 10.9 -40.6 | 257 19 18.5 4.1 4 500 5380 335 106 44.8 -96.1 | 314 73 52.4 -51.4 5 469 5846 335 114 48.2 -103.3 | 316 81 55.8 -58.6 6 400 6980 335 104 44.0 -94.3 | 314 72 51.6 -49.5 7 300 8950 325 110 63.1 -90.1 | 303 84 70.7 -45.4 8 250 10160 335 104 44.0 -94.3 | 314 72 51.6 -49.5 9 200 11610 335 104 44.0 -94.3 | 314 72 51.6 -49.5 10 194 11804 335 104 44.0 -94.3 | 314 72 51.6 -49.5 11 150 13450 335 87 36.8 -78.8 | 308 56 44.4 -34.1 12 100 16080 335 79 33.4 -71.6 | 303 49 41.0 -26.9 13 70 18340 320 58 37.3 -44.4 | 270 45 44.9 0.3 14 50 20420 320 56 36.0 -42.9 | 268 44 43.6 1.8 15 30 23560 310 50 38.3 -32.1 | 255 48 45.9 12.6 16 20 26030 305 48 39.3 -27.5 | 250 50 47.0 17.2 17 10 30260 305 69 56.5 -39.6 | 265 64 64.2 5.1 Wind Parameters Mean winds (0-6000m): 339.7 at 60.5 knts Storm direction: 9.7 at 45.4 knts Shear (0-3000m) pos: 3.5 neg: 3.9 tot: 7.4 10-3/s Storm rel Dir Shear (0-3000m): 84.3 deg Storm rel helicity (0-3000m) pos: 171.9 neg: 0.0 tot: 171.9 m^2/s^2 ave: 57.3 10^-3 m/s^2 rel: 0.67 Storm rel vorticity (0-3000m) horiz: 7.6 stream: 5.1 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.01 Bulk Shear: 260.48 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 ------------------------------------------------------------------------------- 500 347 16 201 31| 15.2 0.0 15.2| 57.9 0.0 57.9 115.9 0.47| 15.3 7.2 1000 350 22 206 26| 10.6 0.0 10.6| 70.3 0.0 70.3 70.3 0.44| 10.7 4.7 1500 352 25 209 23| 7.0 1.4 8.5| 84.3 0.0 84.3 56.2 0.48| 8.7 4.2 2000 351 27 214 21| 5.3 2.1 7.4|103.0 0.0 103.0 51.5 0.56| 7.6 4.2 2500 350 30 220 20| 4.2 2.6 6.8|121.8 0.0 121.8 48.7 0.60| 7.0 4.2 3000 349 32 226 19| 3.5 3.9 7.4|171.9 0.0 171.9 57.3 0.67| 7.6 5.1 4000 346 40 251 18| 2.6 6.3 8.9|288.1 0.0 288.1 72.0 0.63| 9.1 5.7 5000 342 50 278 23| 2.1 7.7 9.9|366.1 0.0 366.1 73.2 0.51| 10.0 5.1 6000 340 60 293 31| 1.8 7.1 8.9|426.4 -23.3 403.2 67.2 0.46| 9.6 4.4 Wrote GIF file: /home/apache/climate/data/raob//U6781/skewt/U6781.skewt.20251213.00.gif