UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025041811.upa.cvt Date: 1100Z 18 APR 25 Searching for VO371... Searching the city database file for: VO371 ... Date:1100Z 18 APR 25 Station: VO371 WMO ident: 43371 Latitude: 8.48 Longitude: 76.95 ------------------------------------------------------------------------------- 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 1000 78 30.8 26.6 78 4.2 27.6 0 0 304.0 308.1 300.8 371.1 22.42 1 925 764 23.4 21.7 90 1.7 22.2 260 13 303.2 306.5 298.0 356.5 17.94 2 850 1504 19.2 17.1 88 2.1 17.8 295 5 306.3 309.0 296.7 350.1 14.59 3 700 3152 11.0 4.0 62 7.0 6.9 45 19 314.7 316.1 293.7 337.6 7.30 4 500 5880 -3.9 -15.9 39 12.0 -8.5 275 5 328.3 328.7 293.3 335.9 2.21 5 400 7610 -14.9 -31.9 22 17.0 -18.8 185 2 335.6 335.8 293.9 338.1 0.66 6 300 9720 -28.7 -34.7 56 6.0 -29.7 125 11 344.9 345.1 296.1 347.5 0.67 7 250 11000 -39.5 -42.9 70 3.4 -39.8 70 12 347.3 347.4 296.4 348.7 0.35 8 200 12480 -51.7 -55.4 64 3.7 -51.8 15 13 350.9 350.9 296.9 351.3 0.10 9 150 14280 -67.5 -71.9 53 4.4 -67.5 40 10 353.8 353.8 297.5 353.9 0.02 10 100 16640 -78.9 -82.3 57 3.4 -78.9 80 23 375.3 375.3 301.5 375.3 0.00 TRP WND Sounding variables and indices 1000-500 mb thick: 5801.64 m Freezing level: 552.35 mb = 5165.96 m = 16948.48 ft Wetbulb zero: 610.77 mb = 4257.56 m = 13968.20 ft Precipitable water: 2.19 inches Sfc-500 mean rel hum: 65.72 % Est. max temperature: 33.11 C = 91.60 F Sfc-Lift cond lev (LCL): 941.77 mb = 605.99 m = 1988.13 ft T: 25.11 C 700-500 lapse rate: 5.46 C/km ThetaE index: 35.16 C Layer 925.0- 400.0 mb Conv cond level (CCL): 914.45 mb = 864.36 m = 2835.80 ft Mean mixing ratio: 19.45 g/kg Conv temperature: 30.50 C = 86.90 F Cap Strength: -0.01 C Lifted Index: -4.80 C Risk: Severe thunderstorms probable Lifted Index @300 mb: -6.22 C Lifted Index @700 mb: -2.55 C Showalter Index: -0.99 C Risk: Thunderstorms probable Total Totals Index: 44.10 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 23.10 C Cross Totals Index: 21.00 C K Index: 33.20 Risk: 60-80 % chance of thunderstorms Sweat Index: 220.20 Risk: None Energy Index: -2.76 Risk: Severe Thunderstorms probable Parcel Indices Parcel: using 100 mb layer CAPE (B+): 2657.20 J/kg Max Up Vert Vel: 72.90 m/s Conv Inhibition (B-): 0.00 J/kg Cap Strength: 0.32 C Lift Cond Lev (LCL): 915.16 mb = 857.61 m = 2813.66 ft Lev Free Conv (LFC): 910.16 mb = 905.56 m = 2970.96 ft Equ Level (EL): 120.16 mb = 15571.14 m = 51085.79 ft B at Equ Level: 2605.83 J/kg Wind level data Storm motion: 25 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 1000 78 0 0 -0.0 -0.0 | 205 6 2.6 5.5 1 1000 74 0 0 -0.0 -0.0 | 205 6 2.6 5.5 2 974 305 270 7 7.0 -0.0 | 240 11 9.6 5.5 3 941 610 255 12 11.6 3.1 | 239 17 14.2 8.6 4 925 764 260 13 12.8 2.3 | 243 17 15.4 7.8 5 878 1219 260 7 6.9 1.2 | 235 12 9.5 6.7 6 850 1504 295 5 4.5 -2.1 | 244 8 7.1 3.4 7 848 1524 295 5 4.5 -2.1 | 244 8 7.1 3.4 8 818 1829 15 4 -1.0 -3.9 | 223 2 1.5 1.7 9 761 2438 50 10 -7.7 -6.4 | 80 5 -5.1 -0.9 10 700 3152 45 19 -13.4 -13.4 | 54 13 -10.9 -7.9 11 683 3353 45 19 -13.4 -13.4 | 54 13 -10.9 -7.9 12 658 3658 65 11 -10.0 -4.6 | 97 7 -7.4 0.9 13 633 3962 25 1 -0.4 -0.9 | 205 5 2.1 4.6 14 610 4267 155 2 -0.8 1.8 | 193 8 1.7 7.3 15 588 4572 305 4 3.3 -2.3 | 241 7 5.8 3.2 16 545 5182 325 6 3.4 -4.9 | 264 6 6.0 0.6 17 525 5486 280 8 7.9 -1.4 | 248 11 10.5 4.1 18 506 5791 280 9 8.9 -1.6 | 251 12 11.4 4.0 19 500 5880 275 5 5.0 -0.4 | 236 9 7.6 5.1 20 486 6096 210 5 2.5 4.3 | 207 11 5.1 9.9 21 468 6401 200 5 1.7 4.7 | 203 11 4.3 10.2 22 449 6706 0 1 -0.0 -1.0 | 210 5 2.6 4.5 23 432 7010 225 4 2.8 2.8 | 213 10 5.4 8.4 24 416 7315 225 5 3.5 3.5 | 214 11 6.1 9.1 25 400 7610 185 2 0.2 2.0 | 200 8 2.7 7.5 26 399 7620 320 4 2.6 -3.1 | 244 6 5.1 2.5 27 383 7925 230 3 2.3 1.9 | 213 9 4.9 7.5 28 368 8230 310 7 5.4 -4.5 | 263 8 7.9 1.0 29 353 8534 260 2 2.0 0.3 | 218 7 4.5 5.9 30 338 8839 0 1 -0.0 -1.0 | 210 5 2.6 4.5 31 325 9144 25 2 -0.8 -1.8 | 205 4 1.7 3.7 32 311 9449 155 5 -2.1 4.5 | 183 10 0.5 10.1 33 300 9720 125 11 -9.0 6.3 | 151 13 -6.4 11.8 34 299 9754 160 12 -4.1 11.3 | 175 17 -1.5 16.8 35 286 10058 100 16 -15.8 2.8 | 122 16 -13.2 8.3 36 274 10363 100 9 -8.9 1.6 | 138 9 -6.3 7.1 37 262 10668 45 16 -11.3 -11.3 | 57 10 -8.7 -5.8 38 250 11000 70 12 -11.3 -4.1 | 99 9 -8.7 1.4 39 229 11582 75 11 -10.6 -2.8 | 108 8 -8.1 2.7 40 200 12480 15 13 -3.4 -12.6 | 6 7 -0.8 -7.0 41 199 12497 35 15 -8.6 -12.3 | 42 9 -6.0 -6.8 42 190 12802 10 13 -2.3 -12.8 | 358 7 0.3 -7.3 43 181 13106 10 9 -1.6 -8.9 | 343 3 1.0 -3.3 44 172 13411 355 14 1.2 -13.9 | 336 9 3.8 -8.4 45 164 13716 355 11 1.0 -11.0 | 327 6 3.5 -5.4 46 156 14021 20 5 -1.7 -4.7 | 226 1 0.9 0.8 47 150 14280 40 10 -6.4 -7.7 | 61 4 -3.9 -2.1 48 149 14326 15 12 -3.1 -11.6 | 5 6 -0.5 -6.1 49 141 14630 40 9 -5.8 -6.9 | 67 3 -3.2 -1.4 50 134 14935 40 15 -9.6 -11.5 | 50 9 -7.1 -6.0 51 127 15240 35 8 -4.6 -6.6 | 63 2 -2.0 -1.0 52 115 15850 85 17 -16.9 -1.5 | 106 15 -14.4 4.0 53 103 16459 95 30 -29.9 2.6 | 107 29 -27.3 8.1 54 100 16640 80 23 -22.7 -4.0 | 94 20 -20.1 1.5 55 98 16764 85 26 -25.9 -2.3 | 98 24 -23.3 3.3 56 93 17069 65 25 -22.7 -10.6 | 76 21 -20.1 -5.0 57 83 17678 60 32 -27.7 -16.0 | 67 27 -25.1 -10.5 58 75 18288 80 26 -25.6 -4.5 | 93 23 -23.0 1.0 59 71 18593 60 11 -9.5 -5.5 | 90 7 -7.0 0.0 60 67 18898 15 9 -2.3 -8.7 | 356 3 0.2 -3.2 61 64 19202 350 11 1.9 -10.8 | 320 7 4.5 -5.3 62 61 19507 250 11 10.3 3.8 | 234 16 12.9 9.3 63 54 20117 260 48 47.3 8.3 | 254 52 49.8 13.9 64 46 21031 275 38 37.9 -3.3 | 267 40 40.4 2.2 Wind Parameters Mean winds (0-6000m): 354.9 at 8.1 knts Storm direction: 24.9 at 6.1 knts Shear (0-3000m) pos: 3.9 neg: 1.3 tot: 5.2 10-3/s Storm rel Dir Shear (0-3000m): -150.2 deg Storm rel helicity (0-3000m) pos: 17.0 neg: -18.2 tot: -1.2 m^2/s^2 ave: -0.4 10^-3 m/s^2 rel: -0.03 Storm rel vorticity (0-3000m) horiz: 8.1 stream: -0.2 10^-3/s Energy-Hel index: 0.28 Bulk Rich Number: 178.41 Bulk Shear: 14.89 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 ------------------------------------------------------------------------------- 500 264 7 236 11| 0.0 11.8 11.8| 6.2 -2.8 3.5 6.9 0.23| 14.1 3.3 1000 261 9 239 13| 1.4 5.9 7.3| 11.2 -8.0 3.1 3.1 0.15| 9.9 1.5 1500 264 8 239 12| 3.2 3.9 7.2| 16.3 -9.8 6.5 4.3 0.17| 9.0 1.6 2000 273 7 243 11| 4.3 3.0 7.2| 16.8 -10.9 5.8 2.9 0.05| 8.8 0.5 2500 294 8 256 10| 4.6 2.4 7.0| 17.0 -12.1 5.0 2.0 0.03| 8.4 0.3 3000 343 9 300 6| 3.9 1.3 5.2| 17.0 -18.2 -1.2 -0.4 -0.03| 8.1 -0.2 4000 22 10 17 4| 1.1 1.0 2.1| 40.5 -20.5 19.9 5.0 0.15| 8.9 1.4 5000 14 8 349 3| 0.9 1.3 2.1| 59.4 -21.2 38.2 7.6 0.24| 8.4 2.0 6000 355 8 308 4| 0.7 1.0 1.7| 61.3 -47.0 14.3 2.4 0.11| 8.4 0.9 Wrote GIF file: /home/apache/climate/data/raob//VO371/skewt/VO371.skewt.20250418.11.gif