UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120512.upa.cvt Date: 1200Z 5 DEC 25 Searching for VVNB... Searching the city database file for: VVNB ... Date:1200Z 5 DEC 25 Station: VVNB WMO ident: 48820 Latitude: 21.02 Longitude: 105.80 Elevation: 6.00 ------------------------------------------------------------------------------- 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 ------------------------------------------------------------------------------- SFC 1020 6 20.6 14.6 68 6.0 16.8 0 0 292.1 293.9 289.2 321.3 10.29 1 1000 175 18.6 13.9 74 4.7 15.7 45 5 291.8 293.5 288.8 320.2 10.03 2 949 621 14.4 12.7 90 1.7 13.4 89 8 291.9 293.6 288.6 319.6 9.76 3 925 838 15.0 14.6 97 0.4 14.7 110 9 294.6 296.7 290.9 327.2 11.37 4 908 996 15.4 13.5 88 1.9 14.2 141 8 296.6 298.6 291.1 327.8 10.77 5 865 1407 12.6 12.6 100 0.0 12.6 221 4 297.9 299.8 291.4 328.8 10.66 6 850 1554 11.8 11.8 100 0.0 11.8 250 3 298.5 300.4 291.3 328.5 10.28 7 759 2495 6.6 6.6 100 0.0 6.6 276 15 302.7 304.2 290.8 326.8 8.08 8 757 2516 6.4 5.0 91 1.4 5.6 277 15 302.7 304.1 290.1 324.4 7.24 9 752 2571 7.2 -4.8 42 12.0 1.7 278 16 304.2 304.8 287.1 315.1 3.56 10 748 2615 8.4 -0.6 53 9.0 3.8 280 16 305.9 306.8 289.0 320.9 4.90 11 729 2829 11.0 -18.0 11 29.0 0.3 286 19 311.0 311.3 287.2 315.3 1.27 12 724 2886 10.2 -0.8 46 11.0 4.4 287 20 310.8 311.7 290.7 326.3 4.99 13 713 3014 9.0 1.0 57 8.0 4.6 291 21 310.8 311.9 291.4 328.8 5.78 14 700 3166 7.8 -3.2 46 11.0 2.3 295 23 311.1 311.9 290.2 324.7 4.31 15 690 3285 8.2 -18.8 13 27.0 -1.5 295 23 312.8 313.1 287.8 317.0 1.25 16 666 3575 5.8 -17.2 17 23.0 -2.6 294 23 313.3 313.6 288.2 318.3 1.49 17 656 3699 6.0 -30.0 5 36.0 -4.1 294 23 314.9 315.0 287.6 316.6 0.48 18 598 4453 3.6 -40.4 2 44.0 -6.5 293 24 320.6 320.6 289.2 321.3 0.19 19 500 5880 -5.9 -38.9 5 33.0 -12.8 290 25 325.8 325.9 290.8 326.8 0.26 20 444 6798 -11.9 -45.9 4 34.0 -17.4 279 30 329.5 329.6 291.7 330.1 0.14 21 403 7534 -15.1 -31.1 24 16.0 -18.8 271 35 334.6 334.8 293.6 337.3 0.71 22 400 7590 -15.3 -33.3 20 18.0 -19.2 270 35 335.1 335.2 293.6 337.3 0.58 23 393 7723 -16.1 -38.1 13 22.0 -20.3 270 35 335.8 335.8 293.6 337.2 0.36 24 389 7800 -15.9 -42.9 8 27.0 -20.4 270 35 337.0 337.0 293.8 337.9 0.22 25 346 8671 -23.7 -38.7 24 15.0 -26.1 270 38 337.9 338.0 294.1 339.4 0.39 26 300 9700 -30.3 -54.3 8 24.0 -32.3 270 40 342.7 342.7 295.0 343.0 0.08 27 283 10113 -33.3 -58.3 6 25.0 -35.0 270 42 344.1 344.1 295.4 344.4 0.05 28 250 10970 -41.3 -63.3 7 22.0 -42.2 270 46 344.7 344.7 295.4 344.8 0.03 29 235 11385 -45.1 -66.1 8 21.0 -45.7 267 47 345.1 345.1 295.6 345.2 0.02 30 200 12440 -52.5 -66.5 17 14.0 -52.8 260 48 349.6 349.6 296.5 349.7 0.02 31 199 12472 -52.7 -64.7 22 12.0 -53.0 260 48 349.8 349.8 296.6 350.0 0.03 32 177 13222 -56.9 -77.9 5 21.0 -57.1 249 45 354.8 354.8 297.7 354.9 0.01 33 150 14250 -65.7 -80.7 11 15.0 -65.8 235 42 356.9 356.9 298.1 356.9 0.00 34 128 15199 -73.5 -82.5 24 9.0 -73.5 237 28 359.4 359.4 298.6 359.4 0.00 35 107 16235 -79.7 -90.7 15 11.0 -79.7 239 11 366.6 366.6 299.9 366.6 0.00 36 100 16620 -78.9 -90.9 12 12.0 -78.9 240 5 375.3 375.3 301.5 375.3 0.00 TRP WND Sounding variables and indices 1000-500 mb thick: 5705.00 m Freezing level: 560.86 mb = 4993.87 m = 16383.89 ft Wetbulb zero: 693.95 mb = 3237.56 m = 10621.79 ft Precipitable water: 1.20 inches Sfc-500 mean rel hum: 46.76 % Est. max temperature: 26.25 C = 79.25 F Sfc-Lift cond lev (LCL): 933.47 mb = 760.85 m = 2496.21 ft T: 14.79 C 700-500 lapse rate: 5.05 C/km ThetaE index: 13.69 C Layer 850.0- 748.0 mb Conv cond level (CCL): 846.09 mb = 1592.30 m = 5224.02 ft Mean mixing ratio: 10.18 g/kg Conv temperature: 27.23 C = 81.01 F Cap Strength: 10.03 C Lifted Index: 9.75 C Risk: None Lifted Index @300 mb: 15.68 C Lifted Index @700 mb: 6.81 C Showalter Index: 6.09 C Risk: None Total Totals Index: 35.40 C Risk: None Vertical Totals Index: 17.70 C Cross Totals Index: 17.70 C K Index: 18.50 Risk: < 20 % chance of thunderstorms Sweat Index: 172.60 Risk: None Energy Index: -0.17 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 10.63 J/kg Max Up Vert Vel: 4.61 m/s Conv Inhibition (B-): 8655.54 J/kg Cap Strength: 10.06 C Lift Cond Lev (LCL): 927.75 mb = 812.84 m = 2666.78 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 323 at 12 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 1020 6 0 0 -0.0 -0.0 | 143 12 -7.5 9.9 1 1000 175 45 5 -3.5 -3.5 | 120 13 -11.1 6.4 2 925 838 110 9 -8.5 3.1 | 129 21 -16.0 13.0 3 850 1554 250 3 2.8 1.0 | 157 12 -4.7 10.9 4 700 3166 295 23 20.8 -9.7 | 269 13 13.3 0.2 5 500 5880 290 25 23.5 -8.6 | 265 16 16.0 1.4 6 400 7590 270 35 35.0 -0.0 | 250 29 27.5 9.9 7 300 9700 270 40 40.0 -0.0 | 253 34 32.5 9.9 8 250 10970 270 46 46.0 -0.0 | 256 40 38.5 9.9 9 200 12440 260 48 47.3 8.3 | 245 44 39.7 18.2 10 150 14250 235 42 34.4 24.1 | 218 43 26.9 34.0 11 100 16620 240 5 4.3 2.5 | 165 13 -3.2 12.4 Wind Parameters Mean winds (0-6000m): 292.7 at 16.6 knts Storm direction: 322.7 at 12.4 knts Shear (0-3000m) pos: 3.6 neg: 0.0 tot: 3.6 10-3/s Storm rel Dir Shear (0-3000m): 115.5 deg Storm rel helicity (0-3000m) pos: 126.9 neg: -17.5 tot: 109.5 m^2/s^2 ave: 36.5 10^-3 m/s^2 rel: 0.56 Storm rel vorticity (0-3000m) horiz: 8.5 stream: 4.8 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 0.20 Bulk Shear: 52.43 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 61 5 123 14| 7.2 0.0 7.2| 1.7 -16.2 -14.4 -28.8 -0.50| 9.5 -4.8 1000 93 6 126 17| 3.9 0.0 3.9| 42.4 -16.2 26.3 26.3 0.16| 9.8 1.6 1500 101 6 129 17| 1.2 0.0 1.2| 68.7 -17.5 51.2 34.2 0.28| 10.0 2.8 2000 111 6 133 18| 2.2 0.0 2.2| 84.8 -17.5 67.3 33.7 0.39| 9.0 3.5 2500 249 7 176 12| 3.0 0.0 3.0|104.4 -17.5 86.9 34.8 0.49| 8.6 4.2 3000 290 9 187 7| 3.6 0.0 3.6|126.9 -17.5 109.5 36.5 0.56| 8.5 4.8 4000 295 12 218 6| 3.0 0.1 3.1|135.2 -18.5 116.7 29.2 0.57| 6.8 3.9 5000 294 15 236 7| 2.4 0.2 2.6|135.2 -20.0 115.3 23.1 0.55| 5.6 3.0 6000 293 17 246 9| 2.0 0.3 2.3|135.2 -22.7 112.6 18.8 0.52| 4.8 2.5 Wrote GIF file: /home/apache/climate/data/raob//VVNB/skewt/VVNB.skewt.20251205.12.gif