UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042000.upa.cvt Date: 0000Z 20 APR 25 Searching for VV839... Searching the city database file for: VV839 ... Date:0000Z 20 APR 25 Station: VV839 WMO ident: 48839 Latitude: 20.13 Longitude: 107.72 ------------------------------------------------------------------------------- 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 1008 5 23.4 22.6 95 0.8 22.9 170 11 295.9 299.0 295.7 345.9 17.38 1 1005 31 23.6 22.8 95 0.8 23.0 170 15 296.3 299.5 296.0 347.2 17.65 2 1000 74 24.0 23.1 95 0.9 23.3 170 23 297.1 300.4 296.5 349.5 18.07 3 961 426 29.0 18.0 52 11.0 21.3 193 21 305.6 308.1 295.8 346.4 13.64 4 925 766 26.4 20.4 70 6.0 22.1 215 19 306.3 309.4 297.9 356.0 16.53 5 850 1510 22.4 15.4 65 7.0 17.6 220 21 309.6 312.1 296.5 349.3 13.06 6 700 3166 10.6 8.0 84 2.6 9.0 225 17 314.2 316.1 295.3 344.3 9.67 7 652 3756 6.6 4.7 88 1.9 5.5 225 20 316.2 317.7 294.8 342.1 8.25 8 646 3832 6.2 2.7 78 3.5 4.2 225 20 316.5 317.9 294.1 339.3 7.22 9 627 4077 4.4 4.2 99 0.2 4.3 225 21 317.2 318.8 295.1 343.3 8.28 10 625 4103 4.2 4.2 100 0.0 4.2 225 21 317.3 318.9 295.1 343.5 8.31 11 533 5385 -3.9 -3.9 100 0.0 -3.9 225 27 322.3 323.4 294.3 339.9 5.39 12 511 5718 -4.9 -8.2 78 3.3 -6.4 225 28 325.0 325.8 293.9 338.5 4.04 13 500 5890 -5.9 -6.7 94 0.8 -6.3 225 29 325.8 326.8 294.6 341.2 4.64 14 496 5953 -6.3 -6.9 95 0.6 -6.6 226 29 326.1 327.0 294.7 341.4 4.60 15 492 6016 -6.7 -8.7 86 2.0 -7.6 226 29 326.4 327.2 294.3 339.8 4.03 16 489 6064 -6.5 -11.5 68 5.0 -8.6 227 29 327.2 327.8 293.9 338.2 3.25 17 484 6144 -7.1 -7.9 94 0.8 -7.5 228 29 327.4 328.3 294.8 342.0 4.36 18 480 6209 -6.5 -28.5 16 22.0 -12.5 229 29 328.9 329.1 292.2 331.7 0.76 19 479 6225 -6.9 -9.1 84 2.2 -7.9 229 29 328.6 329.4 294.8 342.2 4.01 20 477 6258 -6.3 -34.3 9 28.0 -12.9 229 29 329.8 329.9 292.1 331.4 0.44 21 464 6473 -7.7 -21.7 32 14.0 -12.2 232 28 330.6 330.9 293.3 335.8 1.45 22 462 6507 -7.9 -14.9 57 7.0 -10.6 232 28 330.8 331.3 294.3 339.8 2.60 23 456 6608 -8.7 -19.7 41 11.0 -12.5 233 28 331.0 331.4 293.6 337.2 1.76 24 454 6642 -8.9 -12.7 74 3.8 -10.5 234 28 331.2 331.8 294.8 342.1 3.17 25 450 6710 -9.7 -11.8 85 2.1 -10.6 234 28 331.0 331.7 295.0 342.8 3.44 26 435 6971 -11.5 -12.2 95 0.7 -11.8 237 28 332.0 332.7 295.3 343.8 3.45 27 433 7006 -11.9 -12.8 93 0.9 -12.3 238 28 331.9 332.6 295.1 343.3 3.30 28 420 7239 -12.9 -13.3 97 0.4 -13.0 241 27 333.5 334.2 295.5 344.8 3.27 29 410 7423 -13.1 -18.1 66 5.0 -14.9 243 27 335.6 336.0 295.1 343.5 2.24 30 400 7610 -14.7 -18.0 76 3.3 -15.9 245 27 335.9 336.4 295.3 344.1 2.32 31 344 8732 -23.7 -23.7 100 0.0 -23.7 242 27 338.5 338.8 295.4 344.4 1.64 32 329 9056 -26.1 -26.1 100 0.0 -26.1 242 27 339.5 339.8 295.4 344.6 1.38 33 325 9145 -25.7 -29.9 68 4.2 -26.6 241 27 341.3 341.5 295.5 345.0 0.98 34 306 9579 -29.1 -35.1 56 6.0 -30.1 240 27 342.4 342.6 295.5 344.9 0.63 35 303 9649 -29.9 -34.8 62 4.9 -30.7 240 27 342.3 342.4 295.4 344.8 0.66 36 300 9720 -30.5 -36.5 56 6.0 -31.4 240 27 342.4 342.5 295.4 344.6 0.56 37 299 9744 -30.5 -37.5 50 7.0 -31.6 240 27 342.7 342.8 295.4 344.7 0.51 38 294 9864 -30.3 -53.3 9 23.0 -32.3 241 28 344.7 344.7 295.5 345.0 0.09 39 259 10756 -37.5 -48.5 31 11.0 -38.4 244 32 346.8 346.8 296.1 347.5 0.18 40 250 11000 -39.3 -57.3 13 18.0 -40.3 245 33 347.6 347.7 296.2 347.9 0.07 41 237 11362 -42.1 -66.1 6 24.0 -43.0 249 34 348.8 348.8 296.4 348.9 0.02 42 211 12132 -49.3 -66.3 12 17.0 -49.7 256 35 349.3 349.3 296.5 349.4 0.02 43 200 12480 -51.9 -68.9 11 17.0 -52.2 260 36 350.6 350.6 296.8 350.7 0.02 44 182 13083 -56.7 -74.7 9 18.0 -56.9 262 32 352.4 352.4 297.1 352.4 0.01 45 173 13402 -59.5 -69.5 26 10.0 -59.6 263 30 352.9 352.9 297.3 353.0 0.02 46 168 13585 -61.1 -65.0 60 3.9 -61.2 263 29 353.2 353.2 297.4 353.3 0.04 47 160 13886 -63.1 -77.1 13 14.0 -63.2 264 27 354.8 354.8 297.7 354.8 0.01 48 150 14280 -65.5 -72.5 37 7.0 -65.5 265 25 357.2 357.3 298.2 357.3 0.01 49 146 14444 -66.9 -72.9 42 6.0 -67.0 274 24 357.6 357.6 298.2 357.7 0.01 50 120 15608 -75.7 -79.4 56 3.7 -75.7 339 16 362.1 362.1 299.1 362.1 0.01 51 117 15755 -76.9 -81.4 49 4.5 -76.9 348 15 362.5 362.5 299.2 362.5 0.00 52 115 15855 -75.3 -82.3 33 7.0 -75.3 353 15 367.3 367.3 300.1 367.3 0.00 53 110 16113 -75.7 -84.7 23 9.0 -75.7 8 13 371.2 371.2 300.8 371.2 0.00 54 100 16660 -79.7 -84.7 43 5.0 -79.7 40 9 373.7 373.7 301.2 373.8 0.00 TRP WND Sounding variables and indices 1000-500 mb thick: 5816.00 m Freezing level: 577.30 mb = 4767.81 m = 15642.24 ft Wetbulb zero: 577.44 mb = 4740.29 m = 15551.93 ft Precipitable water: 2.36 inches Sfc-500 mean rel hum: 81.90 % Est. max temperature: 36.80 C = 98.24 F Sfc-Lift cond lev (LCL): 996.71 mb = 103.24 m = 338.71 ft T: 24.41 C 700-500 lapse rate: 6.06 C/km ThetaE index: 16.63 C Layer 850.0- 627.0 mb Conv cond level (CCL): 776.17 mb = 2284.98 m = 7496.58 ft Mean mixing ratio: 15.76 g/kg Conv temperature: 39.39 C = 102.89 F Cap Strength: 4.83 C Lifted Index: -3.11 C Risk: Severe thunderstorms possible Lifted Index @300 mb: -2.39 C Lifted Index @700 mb: -0.14 C Showalter Index: -2.70 C Risk: Severe thunderstorms possible Total Totals Index: 49.60 C Risk: Scattered heavy thunderstorms Vertical Totals Index: 28.30 C Cross Totals Index: 21.30 C K Index: 41.10 Risk: > 80 % chance of thunderstorms Sweat Index: 303.69 Risk: Showers and thunderstorms possible Energy Index: -1.62 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 688.89 J/kg Max Up Vert Vel: 37.12 m/s Conv Inhibition (B-): 245.29 J/kg Cap Strength: 4.83 C Lift Cond Lev (LCL): 871.36 mb = 1291.66 m = 4237.69 ft Lev Free Conv (LFC): 696.36 mb = 3209.34 m = 10529.21 ft Equ Level (EL): 206.36 mb = 12276.92 m = 40278.13 ft B at Equ Level: 687.85 J/kg Max Parcel Lev (MPL): 106.36 mb = 16306.15 m = 53497.23 ft Wind level data Storm motion: 250 at 16 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 1008 5 170 11 -1.9 10.8 | 107 18 -17.0 5.3 1 1000 74 170 23 -4.0 22.7 | 132 26 -19.0 17.1 2 925 766 215 19 10.9 15.6 | 157 11 -4.1 10.0 3 850 1510 220 21 13.5 16.1 | 172 11 -1.5 10.5 4 700 3166 225 17 12.0 12.0 | 155 7 -3.0 6.5 5 500 5890 225 29 20.5 20.5 | 200 16 5.5 15.0 6 400 7610 245 27 24.5 11.4 | 238 11 9.4 5.9 7 300 9720 240 27 23.4 13.5 | 226 12 8.3 7.9 8 250 11000 245 33 29.9 13.9 | 241 17 14.9 8.4 9 200 12480 260 36 35.5 6.3 | 268 20 20.4 0.7 10 150 14280 265 25 24.9 2.2 | 289 10 9.9 -3.4 11 100 16660 40 9 -5.8 -6.9 | 59 24 -20.8 -12.4 Wind Parameters Mean winds (0-6000m): 219.7 at 21.4 knts Storm direction: 249.7 at 16.0 knts Shear (0-3000m) pos: 2.4 neg: 0.0 tot: 2.4 10-3/s Storm rel Dir Shear (0-3000m): 50.1 deg Storm rel helicity (0-3000m) pos: 96.7 neg: -5.0 tot: 91.7 m^2/s^2 ave: 30.6 10^-3 m/s^2 rel: 0.51 Storm rel vorticity (0-3000m) horiz: 5.9 stream: 3.0 10^-3/s Energy-Hel index: 0.42 Bulk Rich Number: 27.10 Bulk Shear: 25.42 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 ------------------------------------------------------------------------------- 500 182 21 137 21| 12.3 0.0 12.3| 81.0 0.0 81.0 162.1 0.68| 22.7 15.5 1000 195 20 145 17| 7.5 0.0 7.5| 91.6 0.0 91.6 91.6 0.63| 14.9 9.3 1500 203 20 152 15| 5.6 0.0 5.6| 96.7 0.0 96.7 64.5 0.65| 10.5 6.8 2000 208 20 156 14| 4.0 0.0 4.0| 96.7 -1.5 95.2 47.6 0.60| 8.2 5.0 2500 211 20 158 13| 3.1 0.0 3.1| 96.7 -3.2 93.5 37.4 0.56| 6.9 3.8 3000 213 20 159 12| 2.4 0.0 2.4| 96.7 -5.0 91.7 30.6 0.51| 5.9 3.0 4000 216 19 160 11| 1.9 0.3 2.2|103.0 -5.4 97.7 24.4 0.53| 4.9 2.6 5000 218 20 166 11| 1.6 0.7 2.2|110.9 -5.4 105.5 21.1 0.54| 4.4 2.4 6000 220 21 173 11| 1.4 0.8 2.2|120.1 -5.4 114.7 19.1 0.54| 4.1 2.2 Wrote GIF file: /home/apache/climate/data/raob//VV839/skewt/VV839.skewt.20250420.00.gif