UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025051312.upa.cvt Date: 1200Z 13 MAY 25 Searching for VTBC... Searching the city database file for: VTBC ... Date:1200Z 13 MAY 25 Station: VTBC WMO ident: 48480 Latitude: 12.60 Longitude: 102.12 Elevation: 4.00 ------------------------------------------------------------------------------- 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 1007 4 28.0 24.2 80 3.8 25.2 200 5 300.5 304.1 298.1 357.1 19.21 1 1000 67 27.8 24.4 82 3.4 25.3 180 6 301.0 304.5 298.4 358.7 19.59 2 925 756 23.4 20.6 84 2.8 21.4 165 11 303.2 306.3 297.3 352.9 16.74 3 882 1171 20.4 18.7 90 1.7 19.2 167 11 304.3 307.2 296.8 350.7 15.57 4 850 1491 19.6 15.0 75 4.6 16.5 175 11 306.7 309.1 295.5 344.9 12.72 5 833 1665 18.8 11.8 64 7.0 14.3 181 11 307.6 309.6 294.1 339.4 10.50 6 790 2120 17.0 12.0 72 5.0 13.7 199 10 310.4 312.5 295.4 344.7 11.23 7 740 2675 13.0 11.5 91 1.5 12.0 200 13 311.9 314.1 296.1 347.6 11.60 8 700 3142 10.8 7.8 82 3.0 8.9 200 15 314.4 316.3 295.3 344.1 9.54 9 622 4118 5.8 0.8 70 5.0 3.0 205 14 319.5 320.8 294.4 340.5 6.54 10 530 5409 -2.5 -2.9 97 0.4 -2.7 211 15 324.5 325.7 295.2 343.7 5.84 11 500 5870 -4.7 -4.8 99 0.1 -4.8 220 18 327.3 328.4 295.6 345.1 5.36 12 499 5886 -4.7 -4.8 99 0.1 -4.8 220 18 327.5 328.6 295.6 345.3 5.38 13 443 6821 -9.3 -10.4 92 1.1 -9.8 223 16 333.0 333.8 295.8 346.5 3.92 14 400 7610 -13.3 -15.2 86 1.9 -14.0 220 14 337.7 338.3 296.2 348.1 2.94 15 331 9026 -22.3 -25.8 73 3.5 -23.2 207 7 344.1 344.4 296.5 349.4 1.41 16 300 9740 -27.7 -30.6 76 2.9 -28.3 120 3 346.3 346.6 296.7 350.2 1.00 17 294 9884 -29.1 -31.1 83 2.0 -29.5 98 3 346.4 346.6 296.7 350.1 0.97 18 278 10281 -31.7 -36.1 65 4.4 -32.4 36 5 348.2 348.3 296.8 350.7 0.63 19 263 10669 -35.1 -39.4 65 4.3 -35.7 336 6 348.8 348.9 296.8 350.7 0.48 20 253 10938 -37.1 -40.6 70 3.5 -37.5 308 6 349.7 349.8 297.0 351.5 0.44 21 250 11020 -37.5 -42.0 63 4.5 -38.0 300 6 350.3 350.4 297.0 351.9 0.38 22 212 12136 -46.9 -51.1 62 4.2 -47.1 30 7 352.6 352.6 297.3 353.3 0.16 23 208 12262 -47.9 -56.9 35 9.0 -48.3 39 8 352.9 353.0 297.3 353.3 0.08 24 200 12520 -50.1 -59.1 34 9.0 -50.4 55 10 353.4 353.4 297.4 353.7 0.07 25 199 12553 -50.3 -61.3 26 11.0 -50.7 54 10 353.6 353.6 297.4 353.8 0.05 26 165 13745 -60.9 -64.8 60 3.9 -61.0 20 12 355.3 355.4 297.8 355.5 0.04 27 161 13897 -62.3 -67.3 51 5.0 -62.4 23 13 355.5 355.5 297.8 355.6 0.03 28 150 14330 -65.5 -70.0 53 4.5 -65.5 30 16 357.2 357.3 298.2 357.3 0.02 29 135 14960 -71.3 -75.8 51 4.5 -71.3 43 20 357.9 357.9 298.3 357.9 0.01 30 100 16690 -80.1 -85.1 43 5.0 -80.1 75 35 373.0 373.0 301.1 373.0 0.00 31 91 17221 -81.7 -86.5 44 4.8 -81.7 90 37 380.0 380.0 302.2 380.0 0.00 32 71 18620 -80.1 -89.1 21 9.0 -80.1 101 17 411.3 411.3 306.7 411.4 0.00 33 70 18700 -79.5 -88.5 21 9.0 -79.5 100 17 414.3 414.3 307.0 414.3 0.00 34 63 19307 -73.3 -91.3 5 18.0 -73.4 37 7 440.6 440.6 310.0 440.7 0.00 TRP 91 17221 -81.7 -86.5 44 4.8 -81.7 90 37 380.0 380.0 302.2 380.0 0.00 WND Sounding variables and indices 1000-500 mb thick: 5803.00 m Freezing level: 557.71 mb = 5020.26 m = 16470.46 ft Wetbulb zero: 573.81 mb = 4768.60 m = 15644.82 ft Precipitable water: 2.49 inches Sfc-500 mean rel hum: 82.03 % Est. max temperature: 33.61 C = 92.49 F Sfc-Lift cond lev (LCL): 953.48 mb = 488.01 m = 1601.06 ft T: 25.11 C 700-500 lapse rate: 5.68 C/km ThetaE index: 19.31 C Layer 925.0- 790.0 mb Conv cond level (CCL): 892.25 mb = 1070.30 m = 3511.44 ft Mean mixing ratio: 17.93 g/kg Conv temperature: 31.49 C = 88.68 F Cap Strength: 1.17 C Lifted Index: -3.61 C Risk: Severe thunderstorms possible Lifted Index @300 mb: -2.17 C Lifted Index @700 mb: -1.23 C Showalter Index: 0.14 C Risk: Thunderstorms probable Total Totals Index: 44.00 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 24.30 C Cross Totals Index: 19.70 C K Index: 36.30 Risk: > 80 % chance of thunderstorms Sweat Index: 220.00 Risk: None Energy Index: -0.03 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 847.18 J/kg Max Up Vert Vel: 41.16 m/s Conv Inhibition (B-): 27.89 J/kg Cap Strength: 1.17 C Lift Cond Lev (LCL): 915.63 mb = 844.80 m = 2771.60 ft Lev Free Conv (LFC): 770.63 mb = 2330.84 m = 7647.03 ft Equ Level (EL): 170.63 mb = 13531.53 m = 44394.25 ft B at Equ Level: 846.92 J/kg Max Parcel Lev (MPL): 90.63 mb = 17244.54 m = 56575.90 ft Wind level data Storm motion: 228 at 10 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 1007 4 200 5 1.7 4.7 | 71 6 -5.5 -1.9 1 1000 67 180 6 0.0 6.0 | 85 7 -7.2 -0.6 2 973 305 165 12 -3.1 11.6 | 116 11 -10.3 5.0 3 940 610 165 13 -3.4 12.6 | 119 12 -10.6 6.0 4 925 756 165 11 -2.8 10.6 | 112 11 -10.1 4.0 5 908 914 160 11 -3.8 10.3 | 109 12 -11.0 3.7 6 850 1491 175 11 -1.0 11.0 | 118 9 -8.2 4.4 7 847 1524 175 11 -1.0 11.0 | 118 9 -8.2 4.4 8 788 2134 200 10 3.4 9.4 | 126 5 -3.8 2.8 9 708 3048 200 15 5.1 14.1 | 164 8 -2.1 7.5 10 700 3142 200 15 5.1 14.1 | 164 8 -2.1 7.5 11 657 3658 200 14 4.8 13.2 | 160 7 -2.4 6.6 12 587 4572 210 14 7.0 12.1 | 178 6 -0.2 5.5 13 565 4877 215 14 8.0 11.5 | 190 5 0.8 4.9 14 524 5486 210 15 7.5 13.0 | 183 6 0.3 6.4 15 500 5870 220 18 11.6 13.8 | 211 8 4.4 7.2 16 486 6096 225 17 12.0 12.0 | 222 7 4.8 5.4 17 400 7610 220 14 9.0 10.7 | 203 4 1.8 4.1 18 399 7620 225 14 9.9 9.9 | 219 4 2.7 3.3 19 325 9144 205 6 2.5 5.4 | 76 5 -4.7 -1.2 20 300 9740 120 3 -2.6 1.5 | 63 11 -9.8 -5.1 21 263 10668 335 6 2.5 -5.4 | 21 13 -4.7 -12.0 22 250 11020 300 6 5.2 -3.0 | 12 10 -2.0 -9.6 23 210 12192 35 7 -4.0 -5.7 | 42 17 -11.2 -12.3 24 200 12520 55 10 -8.2 -5.7 | 51 20 -15.4 -12.3 25 165 13716 20 12 -4.1 -11.3 | 32 21 -11.3 -17.9 26 150 14330 30 16 -8.0 -13.9 | 37 25 -15.2 -20.5 27 128 15240 50 22 -16.9 -14.1 | 49 32 -24.1 -20.7 28 104 16459 55 26 -21.3 -14.9 | 53 36 -28.5 -21.5 29 100 16690 75 35 -33.8 -9.1 | 69 44 -41.0 -15.7 30 91 17221 90 37 -37.0 0.0 | 82 45 -44.2 -6.6 31 75 18288 105 17 -16.4 4.4 | 85 24 -23.6 -2.2 32 70 18700 100 17 -16.7 3.0 | 81 24 -24.0 -3.6 33 60 19507 5 2 -0.2 -2.0 | 41 11 -7.4 -8.6 Wind Parameters Mean winds (0-6000m): 197.5 at 13.0 knts Storm direction: 227.5 at 9.8 knts Shear (0-3000m) pos: 1.3 neg: 1.6 tot: 2.9 10-3/s Storm rel Dir Shear (0-3000m): 92.5 deg Storm rel helicity (0-3000m) pos: 27.5 neg: -6.2 tot: 21.2 m^2/s^2 ave: 7.1 10^-3 m/s^2 rel: 0.46 Storm rel vorticity (0-3000m) horiz: 4.2 stream: 1.9 10^-3/s Energy-Hel index: 0.11 Bulk Rich Number: 153.59 Bulk Shear: 5.52 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 ------------------------------------------------------------------------------- 500 169 10 109 10| 0.0 9.3 9.3| 14.3 0.0 14.3 28.7 0.72| 9.4 6.8 1000 166 11 111 11| 0.0 3.9 3.9| 15.8 -6.2 9.6 9.6 0.40| 6.4 2.6 1500 167 11 112 10| 0.8 2.6 3.5| 19.6 -6.2 13.4 8.9 0.43| 5.1 2.2 2000 171 11 115 10| 1.5 2.0 3.5| 21.6 -6.2 15.4 7.7 0.40| 4.8 1.9 2500 177 11 118 9| 1.5 1.6 3.1| 24.2 -6.2 18.0 7.2 0.43| 4.4 1.9 3000 182 11 124 8| 1.3 1.6 2.9| 27.5 -6.2 21.2 7.1 0.46| 4.2 1.9 4000 188 12 134 8| 1.1 1.2 2.2| 28.9 -7.3 21.6 5.4 0.44| 3.4 1.5 5000 193 12 141 7| 1.1 0.9 2.0| 32.3 -7.4 24.8 5.0 0.47| 3.0 1.4 6000 198 13 151 7| 1.3 0.9 2.1| 40.9 -8.1 32.7 5.5 0.49| 3.0 1.5 Wrote GIF file: /home/apache/climate/data/raob//VTBC/skewt/VTBC.skewt.20250513.12.gif