UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025101700.upa.cvt Date: 0000Z 17 OCT 25 Searching for VVNB... Searching the city database file for: VVNB ... Date:0000Z 17 OCT 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 1014 6 26.2 24.0 88 2.2 24.6 0 0 298.2 301.6 297.3 353.0 18.84 1 1000 131 24.6 23.4 93 1.2 23.8 310 3 297.8 301.1 296.9 351.2 18.41 2 992 202 24.0 22.9 94 1.1 23.2 321 3 297.8 301.1 296.7 350.1 18.00 3 984 273 25.4 21.7 80 3.7 22.8 332 3 299.9 303.0 296.4 349.2 16.84 4 971 391 24.8 20.8 78 4.0 21.9 350 3 300.5 303.4 296.1 347.8 16.13 5 925 816 21.4 19.4 88 2.0 20.0 55 3 301.2 304.0 295.9 346.8 15.51 6 863 1414 16.6 16.6 100 0.0 16.6 100 11 302.2 304.8 295.1 343.3 13.90 7 850 1544 15.6 15.6 100 0.0 15.6 110 13 302.5 304.9 294.7 341.6 13.23 8 848 1564 15.6 14.6 94 1.0 15.0 110 13 302.7 305.0 294.2 339.5 12.42 9 844 1604 16.6 12.2 75 4.4 13.8 111 13 304.2 306.1 293.3 335.9 10.64 10 830 1747 16.2 9.2 63 7.0 11.9 112 13 305.2 306.8 292.2 331.7 8.83 11 802 2038 13.8 13.3 97 0.5 13.5 116 12 305.6 307.9 294.7 341.8 12.06 12 784 2229 13.4 11.0 85 2.4 11.9 118 12 307.2 309.2 294.1 339.2 10.58 13 770 2381 13.6 7.6 67 6.0 9.9 120 12 309.0 310.6 293.1 335.1 8.54 14 764 2448 15.4 -0.6 33 16.0 6.8 121 12 311.6 312.6 290.7 326.7 4.79 15 712 3042 11.4 4.4 62 7.0 7.3 128 11 313.6 315.0 293.5 336.6 7.39 16 700 3184 11.6 -4.4 32 16.0 3.6 130 11 315.3 316.1 291.2 328.0 3.94 17 698 3208 11.8 -7.2 26 19.0 2.8 131 11 315.8 316.4 290.6 326.1 3.19 18 689 3317 11.2 -5.8 30 17.0 2.9 135 11 316.3 317.0 291.1 327.9 3.60 19 656 3724 7.6 -2.4 49 10.0 2.4 152 9 316.7 317.7 292.3 332.4 4.89 20 635 3992 6.6 -11.4 26 18.0 -1.2 163 8 318.5 319.0 290.8 326.9 2.52 21 609 4334 3.8 -8.2 41 12.0 -1.7 178 7 319.2 319.8 291.7 330.2 3.38 22 594 4537 2.8 -19.2 18 22.0 -5.0 186 6 320.3 320.6 290.3 325.1 1.41 23 563 4969 0.0 -11.0 43 11.0 -4.7 204 5 321.9 322.5 292.2 331.7 2.93 24 560 5012 0.0 -16.0 29 16.0 -6.1 206 4 322.4 322.8 291.5 329.1 1.96 25 553 5113 -1.1 -8.1 59 7.0 -4.3 211 4 322.3 323.0 293.0 334.7 3.76 26 547 5200 -1.5 -13.5 39 12.0 -6.3 214 4 322.8 323.3 292.0 331.1 2.47 27 542 5273 -2.1 -5.6 77 3.5 -3.8 217 3 322.9 323.9 293.9 338.2 4.65 28 537 5347 -2.7 -5.6 80 2.9 -4.1 221 3 323.1 324.0 294.0 338.5 4.70 29 525 5526 -4.1 -6.0 87 1.9 -5.0 228 2 323.5 324.4 294.0 338.8 4.66 30 511 5739 -5.5 -9.7 72 4.2 -7.4 238 2 324.3 325.0 293.4 336.3 3.59 31 500 5910 -6.1 -19.1 35 13.0 -10.5 245 1 325.6 325.9 292.1 331.4 1.69 32 496 5973 -5.7 -26.7 17 21.0 -11.6 241 1 326.8 327.0 291.7 330.0 0.87 33 486 6131 -6.3 -30.3 13 24.0 -12.5 230 2 328.0 328.1 291.8 330.3 0.63 34 483 6180 -5.9 -31.9 11 26.0 -12.5 226 2 329.1 329.2 292.0 331.1 0.55 35 412 7405 -11.9 -42.9 6 31.0 -17.6 141 6 336.7 336.7 293.7 337.5 0.21 36 400 7630 -13.5 -44.5 5 31.0 -18.8 125 7 337.4 337.5 293.9 338.2 0.18 37 347 8695 -21.1 -58.1 2 37.0 -24.9 88 12 341.2 341.2 294.6 341.3 0.04 38 339 8866 -22.3 -47.3 8 25.0 -25.6 82 13 341.8 341.8 294.9 342.4 0.16 39 300 9750 -30.1 -42.1 30 12.0 -31.6 50 17 343.0 343.0 295.3 344.2 0.31 40 276 10338 -34.9 -42.9 44 8.0 -35.8 50 16 344.3 344.4 295.6 345.6 0.31 41 250 11020 -40.5 -48.5 42 8.0 -41.1 50 15 345.9 345.9 295.9 346.6 0.19 42 235 11439 -44.1 -56.1 25 12.0 -44.7 39 14 346.6 346.6 296.0 346.9 0.08 43 222 11818 -47.7 -55.7 39 8.0 -48.0 29 14 346.7 346.8 296.0 347.1 0.09 44 217 11968 -48.5 -59.5 27 11.0 -48.9 25 14 347.8 347.8 296.2 348.0 0.06 45 200 12500 -52.9 -62.9 29 10.0 -53.2 10 13 349.0 349.0 296.4 349.2 0.04 46 150 14290 -67.3 -74.3 36 7.0 -67.4 360 15 354.2 354.2 297.5 354.2 0.01 47 135 14918 -72.1 -76.9 48 4.8 -72.1 16 14 356.5 356.5 298.0 356.5 0.01 48 124 15416 -74.1 -81.1 33 7.0 -74.1 28 13 361.6 361.6 299.0 361.6 0.00 49 107 16265 -79.1 -82.8 54 3.7 -79.1 50 11 367.7 367.7 300.2 367.7 0.00 50 100 16650 -78.7 -84.7 37 6.0 -78.7 85 13 375.7 375.7 301.5 375.7 0.00 TRP 107 16265 -79.1 -82.8 54 3.7 -79.1 50 11 367.7 367.7 300.2 367.7 0.00 WND Sounding variables and indices 1000-500 mb thick: 5779.00 m Freezing level: 560.00 mb = 5012.13 m = 16443.79 ft Wetbulb zero: 641.77 mb = 3904.88 m = 12811.14 ft Precipitable water: 1.81 inches Sfc-500 mean rel hum: 61.57 % Est. max temperature: 30.26 C = 86.46 F Sfc-Lift cond lev (LCL): 982.53 mb = 286.30 m = 939.29 ft T: 25.33 C 700-500 lapse rate: 6.49 C/km ThetaE index: 21.25 C Layer 1000.0- 802.0 mb Conv cond level (CCL): 908.29 mb = 973.25 m = 3193.04 ft Mean mixing ratio: 16.54 g/kg Conv temperature: 29.52 C = 85.14 F Cap Strength: 1.90 C Lifted Index: -2.60 C Risk: Severe thunderstorms possible Lifted Index @300 mb: -0.91 C Lifted Index @700 mb: 1.44 C Showalter Index: 0.03 C Risk: Thunderstorms probable Total Totals Index: 43.40 C Risk: None Vertical Totals Index: 21.70 C Cross Totals Index: 21.70 C K Index: 21.30 Risk: 20-40 % chance of thunderstorms Sweat Index: 214.20 Risk: None Energy Index: -1.94 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 271.78 J/kg Max Up Vert Vel: 23.31 m/s Conv Inhibition (B-): 15.97 J/kg Cap Strength: 1.79 C Lift Cond Lev (LCL): 927.71 mb = 790.36 m = 2593.01 ft Lev Free Conv (LFC): 892.71 mb = 1122.48 m = 3682.62 ft Equ Level (EL): 762.71 mb = 2461.77 m = 8076.59 ft B at Equ Level: 50.85 J/kg Max Parcel Lev (MPL): 142.71 mb = 14586.94 m = 47856.83 ft Wind level data Storm motion: 151 at 6 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 1014 6 0 0 -0.0 -0.0 | 331 6 2.7 -4.8 1 1000 131 310 3 2.3 -1.9 | 324 8 5.0 -6.8 2 925 816 55 3 -2.5 -1.7 | 358 7 0.2 -6.6 3 850 1544 110 13 -12.2 4.4 | 88 10 -9.6 -0.4 4 700 3184 130 11 -8.4 7.1 | 111 6 -5.8 2.2 5 500 5910 245 1 0.9 0.4 | 321 6 3.6 -4.4 6 400 7630 125 7 -5.7 4.0 | 75 3 -3.1 -0.8 7 300 9750 50 17 -13.0 -10.9 | 33 19 -10.4 -15.8 8 250 11020 50 15 -11.5 -9.6 | 31 17 -8.8 -14.5 9 200 12500 10 13 -2.3 -12.8 | 359 18 0.4 -17.6 10 150 14290 360 15 -0.0 -15.0 | 352 20 2.7 -19.8 11 107 16265 50 11 -8.4 -7.1 | 26 13 -5.8 -11.9 12 100 16650 85 13 -13.0 -1.1 | 60 12 -10.3 -6.0 Wind Parameters Mean winds (0-6000m): 121.2 at 7.4 knts Storm direction: 151.2 at 5.5 knts Shear (0-3000m) pos: 1.9 neg: 0.0 tot: 1.9 10-3/s Storm rel Dir Shear (0-3000m): 137.0 deg Storm rel helicity (0-3000m) pos: 41.4 neg: -0.7 tot: 40.7 m^2/s^2 ave: 13.6 10^-3 m/s^2 rel: 0.77 Storm rel vorticity (0-3000m) horiz: 4.2 stream: 3.3 10^-3/s Energy-Hel index: 0.06 Bulk Rich Number: 21.94 Bulk Shear: 12.39 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 ------------------------------------------------------------------------------- 500 334 3 332 8| 3.1 0.0 3.1| 5.2 -0.7 4.5 9.1 0.36| 5.6 2.0 1000 20 3 348 8| 2.9 0.0 2.9| 14.0 -0.7 13.3 13.3 0.62| 5.5 3.4 1500 82 5 23 6| 4.3 0.0 4.3| 33.3 -0.7 32.6 21.8 0.78| 6.8 5.3 2000 100 7 49 6| 3.2 0.0 3.2| 37.5 -0.7 36.8 18.4 0.79| 5.6 4.4 2500 107 8 63 6| 2.4 0.0 2.4| 39.6 -0.7 38.9 15.6 0.78| 4.8 3.7 3000 111 9 72 6| 1.9 0.0 1.9| 41.4 -0.7 40.7 13.6 0.77| 4.2 3.3 4000 119 9 85 5| 1.0 0.0 1.0| 47.9 -0.7 47.2 11.8 0.79| 4.1 3.2 5000 124 8 88 4| 0.4 0.0 0.4| 53.0 -0.7 52.3 10.5 0.81| 3.9 3.1 6000 121 7 74 4| 0.1 0.0 0.1| 58.1 -1.2 56.9 9.5 0.81| 3.6 2.9 Wrote GIF file: /home/apache/climate/data/raob//VVNB/skewt/VVNB.skewt.20251017.00.gif