UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025041900.upa.cvt Date: 0000Z 19 APR 25 Searching for VVNB... Searching the city database file for: VVNB ... Date:0000Z 19 APR 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 1006 6 26.2 23.4 85 2.8 24.2 130 1 298.8 302.2 297.1 352.2 18.30 1 1000 55 25.6 23.3 87 2.3 23.9 120 3 298.8 302.1 297.1 352.1 18.30 2 971 314 23.0 22.7 98 0.3 22.8 175 6 298.7 302.0 297.0 351.6 18.17 3 958 432 24.0 22.5 91 1.5 22.9 200 7 300.8 304.2 297.5 354.3 18.20 4 950 506 26.6 19.6 65 7.0 21.6 215 8 304.2 307.0 296.5 349.7 15.28 5 936 637 27.2 18.2 58 9.0 20.9 243 10 306.1 308.7 296.3 348.7 14.19 6 927 723 27.0 18.0 58 9.0 20.6 261 11 306.7 309.4 296.5 349.3 14.15 7 925 742 27.0 18.0 58 9.0 20.6 265 11 306.9 309.6 296.5 349.6 14.18 8 851 1475 22.0 15.0 64 7.0 17.2 275 25 309.1 311.5 296.1 347.7 12.70 9 850 1485 22.0 15.0 64 7.0 17.2 275 25 309.2 311.6 296.1 347.8 12.72 10 839 1598 22.6 12.6 53 10.0 16.0 272 24 311.0 313.1 295.4 344.7 10.99 11 761 2439 16.2 8.2 59 8.0 11.2 252 18 312.9 314.6 294.5 340.8 9.01 12 700 3144 11.0 5.0 66 6.0 7.4 235 13 314.7 316.2 294.1 339.2 7.84 13 647 3798 6.2 3.4 82 2.8 4.6 235 16 316.4 317.9 294.4 340.3 7.58 14 508 5745 -5.7 -5.9 98 0.2 -5.8 235 24 324.6 325.6 294.4 340.6 4.85 15 503 5823 -4.9 -7.3 83 2.4 -6.0 235 25 326.5 327.4 294.6 341.2 4.40 16 500 5870 -5.1 -7.6 83 2.5 -6.2 235 25 326.8 327.7 294.6 341.3 4.32 17 454 6619 -10.1 -12.2 85 2.1 -11.0 241 30 329.7 330.4 294.6 341.0 3.31 18 435 6946 -12.5 -21.5 47 9.0 -15.3 244 32 330.7 331.0 293.4 336.3 1.58 19 419 7231 -14.3 -24.3 42 10.0 -17.1 247 34 332.0 332.2 293.4 336.6 1.28 20 403 7524 -16.3 -21.0 67 4.7 -17.7 249 36 333.1 333.5 294.1 339.4 1.78 21 400 7580 -16.9 -18.6 87 1.7 -17.4 250 36 333.0 333.5 294.5 340.8 2.20 22 398 7618 -16.5 -16.8 98 0.3 -16.6 250 36 334.0 334.5 295.0 343.1 2.58 23 370 8165 -19.5 -23.2 72 3.7 -20.5 250 37 337.1 337.4 295.0 342.8 1.60 24 343 8724 -24.5 -24.5 100 0.0 -24.5 250 37 337.7 338.0 295.1 343.2 1.53 25 319 9250 -28.1 -28.5 96 0.4 -28.2 250 38 339.8 340.0 295.3 344.0 1.14 26 316 9318 -28.5 -36.5 46 8.0 -29.7 250 38 340.1 340.2 294.8 342.2 0.53 27 314 9364 -28.5 -33.0 65 4.5 -29.3 250 38 340.7 340.9 295.2 343.6 0.76 28 310 9455 -29.7 -42.7 27 13.0 -31.3 250 38 340.3 340.4 294.7 341.4 0.29 29 308 9502 -29.9 -40.9 34 11.0 -31.3 250 38 340.7 340.7 294.8 342.0 0.35 30 307 9525 -29.9 -38.9 41 9.0 -31.2 250 38 341.0 341.1 295.0 342.7 0.43 31 305 9572 -29.3 -31.2 84 1.9 -29.7 250 38 342.5 342.7 295.7 346.0 0.93 32 304 9595 -29.5 -34.4 62 4.9 -30.3 250 38 342.5 342.6 295.6 345.1 0.68 33 302 9642 -29.5 -32.6 74 3.1 -30.0 250 38 343.2 343.3 295.8 346.3 0.82 34 300 9690 -29.9 -33.0 74 3.1 -30.4 250 38 343.2 343.4 295.8 346.3 0.79 35 276 10277 -34.3 -36.1 84 1.8 -34.6 252 40 345.2 345.3 296.1 347.6 0.63 36 262 10639 -37.3 -40.4 73 3.1 -37.7 254 41 345.9 346.0 296.1 347.6 0.43 37 256 10798 -38.7 -52.7 21 14.0 -39.6 254 41 346.2 346.2 295.9 346.6 0.11 38 251 10933 -39.9 -58.9 11 19.0 -40.9 255 42 346.3 346.4 295.8 346.6 0.05 39 250 10960 -39.9 -57.9 13 18.0 -40.9 255 42 346.7 346.8 296.0 347.0 0.06 40 233 11435 -43.7 -51.7 41 8.0 -44.2 257 44 348.0 348.1 296.3 348.6 0.14 41 232 11464 -43.7 -47.5 66 3.8 -44.0 257 44 348.5 348.5 296.5 349.4 0.23 42 221 11787 -46.5 -59.5 21 13.0 -47.0 258 45 349.0 349.0 296.5 349.3 0.06 43 215 11969 -47.7 -53.7 50 6.0 -48.0 258 46 349.9 349.9 296.7 350.4 0.12 44 213 12030 -48.1 -56.1 39 8.0 -48.4 259 46 350.2 350.3 296.8 350.6 0.09 45 202 12376 -51.3 -54.8 66 3.5 -51.4 260 48 350.5 350.6 296.8 351.0 0.11 46 200 12440 -51.7 -55.8 61 4.1 -51.8 260 48 350.9 350.9 296.9 351.3 0.10 47 185 12941 -55.9 -66.9 24 11.0 -56.1 261 44 352.0 352.0 297.1 352.1 0.03 48 181 13080 -56.7 -70.7 16 14.0 -56.9 262 43 352.9 352.9 297.3 353.0 0.02 49 174 13329 -58.5 -65.5 40 7.0 -58.6 262 41 353.9 354.0 297.5 354.1 0.03 50 166 13624 -59.5 -73.5 15 14.0 -59.7 263 38 357.1 357.1 298.1 357.1 0.01 51 150 14250 -64.9 -76.9 18 12.0 -65.0 265 33 358.3 358.3 298.4 358.3 0.01 52 136 14842 -69.1 -79.1 22 10.0 -69.2 271 28 361.0 361.0 298.9 361.1 0.01 53 100 16640 -78.3 -86.3 26 8.0 -78.3 290 13 376.4 376.4 301.6 376.5 0.00 TRP WND Sounding variables and indices 1000-500 mb thick: 5815.00 m Freezing level: 574.58 mb = 4812.16 m = 15787.73 ft Wetbulb zero: 585.48 mb = 4602.03 m = 15098.34 ft Precipitable water: 2.20 inches Sfc-500 mean rel hum: 75.15 % Est. max temperature: 36.32 C = 97.37 F Sfc-Lift cond lev (LCL): 966.29 mb = 356.27 m = 1168.83 ft T: 23.36 C 700-500 lapse rate: 5.91 C/km ThetaE index: 8.64 C Layer 839.0- 647.0 mb Conv cond level (CCL): 774.86 mb = 2283.33 m = 7491.13 ft Mean mixing ratio: 16.32 g/kg Conv temperature: 39.90 C = 103.83 F Cap Strength: 5.12 C Lifted Index: -2.48 C Risk: Severe thunderstorms possible Lifted Index @300 mb: -2.03 C Lifted Index @700 mb: 0.14 C Showalter Index: -1.37 C Risk: Thunderstorms probable Total Totals Index: 47.20 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 27.10 C Cross Totals Index: 20.10 C K Index: 36.10 Risk: > 80 % chance of thunderstorms Sweat Index: 255.00 Risk: None Energy Index: -1.31 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 899.46 J/kg Max Up Vert Vel: 42.41 m/s Conv Inhibition (B-): 284.33 J/kg Cap Strength: 5.11 C Lift Cond Lev (LCL): 891.01 mb = 1070.98 m = 3513.68 ft Lev Free Conv (LFC): 696.01 mb = 3191.43 m = 10470.45 ft Equ Level (EL): 206.01 mb = 12247.42 m = 40181.32 ft B at Equ Level: 896.66 J/kg Max Parcel Lev (MPL): 106.01 mb = 16298.63 m = 53472.54 ft Wind level data Storm motion: 278 at 13 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 1006 6 130 1 -0.8 0.6 | 100 14 -13.8 2.4 1 1000 55 120 3 -2.6 1.5 | 102 16 -15.7 3.3 2 925 742 265 11 11.0 1.0 | 142 3 -2.1 2.7 3 850 1485 275 25 24.9 -2.2 | 272 12 11.8 -0.4 4 700 3144 235 13 10.6 7.5 | 165 10 -2.4 9.2 5 500 5870 235 25 20.5 14.3 | 205 18 7.4 16.1 6 400 7580 250 36 33.8 12.3 | 236 25 20.8 14.1 7 300 9690 250 38 35.7 13.0 | 237 27 22.6 14.8 8 250 10960 255 42 40.6 10.9 | 245 30 27.5 12.6 9 200 12440 260 48 47.3 8.3 | 254 36 34.2 10.1 10 150 14250 265 33 32.9 2.9 | 257 20 19.8 4.6 11 100 16640 290 13 12.2 -4.4 | 18 3 -0.8 -2.7 Wind Parameters Mean winds (0-6000m): 247.7 at 17.6 knts Storm direction: 277.7 at 13.2 knts Shear (0-3000m) pos: 4.4 neg: 2.7 tot: 7.1 10-3/s Storm rel Dir Shear (0-3000m): 73.0 deg Storm rel helicity (0-3000m) pos: 52.5 neg: -38.4 tot: 14.1 m^2/s^2 ave: 4.7 10^-3 m/s^2 rel: 0.08 Storm rel vorticity (0-3000m) horiz: 8.8 stream: 0.7 10^-3/s Energy-Hel index: 0.30 Bulk Rich Number: 29.14 Bulk Shear: 30.86 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 ------------------------------------------------------------------------------- 500 192 5 120 14| 8.5 0.0 8.5| 37.6 0.0 37.6 75.1 0.76| 12.8 9.7 1000 260 8 124 6| 8.6 0.0 8.6| 45.3 0.0 45.3 45.3 0.61| 13.4 8.1 1500 269 13 165 2| 8.8 0.0 8.8| 52.5 0.0 52.5 35.0 0.56| 12.1 6.8 2000 269 15 224 3| 6.6 1.6 8.2| 52.5 -14.9 37.6 18.8 0.35| 10.6 3.7 2500 266 16 226 4| 5.3 2.3 7.6| 52.5 -27.3 25.2 10.1 0.19| 9.6 1.8 3000 264 16 221 4| 4.4 2.7 7.1| 52.5 -38.4 14.1 4.7 0.08| 8.8 0.7 4000 258 16 204 6| 3.3 2.1 5.4| 60.8 -40.8 20.0 5.0 0.11| 7.2 0.8 5000 252 16 200 7| 2.6 1.6 4.3| 71.2 -40.8 30.4 6.1 0.15| 6.2 0.9 6000 248 18 201 9| 2.4 1.4 3.8| 84.5 -40.8 43.6 7.3 0.19| 5.6 1.0 Wrote GIF file: /home/apache/climate/data/raob//VVNB/skewt/VVNB.skewt.20250419.00.gif