UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025101712.upa.cvt Date: 1200Z 17 OCT 25 Searching for DRRN... Searching the city database file for: DRRN ... Date:1200Z 17 OCT 25 Station: DRRN WMO ident: 61052 Latitude: 13.48 Longitude: 2.17 Elevation: 227.00 ------------------------------------------------------------------------------- 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 ------------------------------------------------------------------------------- 0 1000 113 SFC 987 227 33.6 21.6 50 12.0 24.8 280 8 307.9 311.0 298.4 358.3 16.68 2 981 283 32.0 20.0 49 12.0 23.3 259 4 306.8 309.7 297.2 352.5 15.17 3 975 338 31.4 19.4 49 12.0 22.8 250 3 306.8 309.5 296.8 351.0 14.70 4 925 811 25.6 18.6 65 7.0 20.6 255 6 305.5 308.2 296.5 349.6 14.74 5 906 993 23.8 17.8 69 6.0 19.6 284 4 305.5 308.1 296.3 348.2 14.30 6 898 1071 23.4 16.4 65 7.0 18.6 298 3 305.8 308.3 295.6 345.3 13.18 7 890 1149 23.6 14.6 57 9.0 17.5 312 3 306.8 309.0 294.9 342.4 11.82 8 862 1427 22.0 11.0 50 11.0 14.9 55 5 308.0 309.8 293.6 337.1 9.61 9 850 1549 21.0 10.0 49 11.0 14.0 50 6 308.1 309.9 293.3 335.8 9.11 10 792 2155 16.8 -1.2 29 18.0 7.3 80 18 309.9 310.8 289.9 323.8 4.42 11 767 2427 14.2 -3.8 29 18.0 5.2 85 25 310.0 310.7 289.3 321.8 3.76 12 700 3190 8.6 -8.4 29 17.0 1.0 65 31 312.0 312.6 289.2 321.3 2.90 13 663 3636 6.4 -26.6 7 33.0 -3.6 65 23 314.4 314.5 287.6 316.7 0.65 14 623 4141 3.2 -22.8 13 26.0 -5.2 84 21 316.4 316.6 288.6 319.8 0.98 15 600 4444 1.4 -28.6 9 30.0 -7.0 94 18 317.7 317.9 288.7 319.9 0.60 16 597 4484 1.4 -30.6 7 32.0 -7.2 95 18 318.2 318.3 288.7 320.0 0.50 17 587 4620 1.6 -39.4 3 41.0 -7.7 98 15 320.0 320.0 289.0 320.8 0.21 18 571 4842 0.0 -33.0 6 33.0 -8.4 104 12 320.6 320.7 289.4 322.1 0.42 19 500 5890 -6.3 -35.3 8 29.0 -12.8 150 14 325.4 325.4 290.8 326.8 0.38 20 493 6000 -7.1 -28.1 17 21.0 -12.7 150 14 325.7 325.8 291.3 328.5 0.77 21 470 6372 -10.1 -33.1 13 23.0 -15.3 158 13 326.5 326.6 291.2 328.3 0.50 22 442 6844 -12.9 -24.9 36 12.0 -16.2 172 13 328.7 328.9 292.4 332.8 1.15 23 415 7323 -15.9 -30.9 26 15.0 -19.3 187 12 330.8 331.0 292.6 333.4 0.70 24 408 7451 -16.9 -28.9 35 12.0 -19.7 190 11 331.1 331.3 292.9 334.3 0.86 25 401 7581 -17.7 -33.7 23 16.0 -20.9 194 11 331.7 331.9 292.7 333.8 0.55 26 400 7600 -17.7 -34.7 21 17.0 -21.0 195 11 332.0 332.1 292.7 333.9 0.50 27 392 7751 -18.9 -25.9 54 7.0 -20.7 184 13 332.3 332.6 293.4 336.6 1.18 28 369 8200 -21.7 -34.7 30 13.0 -24.1 197 14 334.4 334.5 293.4 336.5 0.54 29 339 8819 -26.7 -33.7 52 7.0 -27.9 215 16 335.8 335.9 293.9 338.3 0.65 30 300 9690 -33.7 -41.7 44 8.0 -34.6 240 15 337.9 337.9 294.1 339.2 0.33 31 250 10940 -41.9 -59.9 12 18.0 -42.7 230 26 343.8 343.8 295.3 344.0 0.05 32 226 11615 -47.5 -67.5 8 20.0 -48.0 237 27 345.3 345.3 295.6 345.4 0.02 33 200 12410 -54.5 -68.5 16 14.0 -54.8 245 28 346.5 346.5 295.8 346.5 0.02 34 156 13954 -67.3 -75.3 31 8.0 -67.4 254 25 350.2 350.2 296.7 350.2 0.01 35 150 14190 -68.5 -76.5 31 8.0 -68.5 255 24 352.1 352.1 297.1 352.1 0.01 36 146 14351 -69.7 -78.7 26 9.0 -69.8 256 25 352.7 352.7 297.2 352.8 0.01 37 123 15356 -74.9 -81.9 33 7.0 -74.9 255 32 361.0 361.0 298.9 361.0 0.00 38 114 15794 -76.1 -84.1 27 8.0 -76.1 235 32 366.7 366.7 299.9 366.7 0.00 39 107 16157 -78.1 -84.1 37 6.0 -78.1 218 33 369.6 369.6 300.5 369.6 0.00 40 101 16484 -80.5 -87.5 30 7.0 -80.5 203 33 371.1 371.1 300.8 371.1 0.00 41 100 16540 -80.5 -87.5 30 7.0 -80.5 200 33 372.2 372.2 300.9 372.2 0.00 42 92 17014 -77.1 -83.1 38 6.0 -77.1 221 28 387.9 387.9 303.5 387.9 0.00 43 83 17611 -72.5 -80.5 29 8.0 -72.5 247 21 408.9 408.9 306.4 408.9 0.01 44 80 17828 -70.7 -78.7 30 8.0 -70.8 256 19 416.9 416.9 307.3 417.0 0.01 45 78 17979 -70.3 -78.3 30 8.0 -70.4 262 17 420.8 420.8 307.8 420.8 0.01 46 75 18211 -70.3 -79.3 25 9.0 -70.4 272 15 425.5 425.5 308.3 425.6 0.01 47 73 18372 -70.5 -78.5 30 8.0 -70.6 232 13 428.4 428.4 308.7 428.4 0.01 48 70 18620 -71.5 -80.5 25 9.0 -71.6 110 12 431.4 431.4 309.0 431.5 0.01 49 69 18705 -71.5 -80.5 25 9.0 -71.6 109 13 433.2 433.2 309.2 433.2 0.01 50 52 20386 -69.5 -80.5 19 11.0 -69.6 92 33 474.4 474.4 313.0 474.4 0.01 51 50 20620 -70.1 -82.1 16 12.0 -70.2 90 36 478.3 478.3 313.3 478.3 0.01 52 49 20740 -70.3 -82.3 16 12.0 -70.4 92 37 480.6 480.6 313.5 480.6 0.01 53 30 23760 -54.9 -78.9 4 24.0 -56.5 100 54 595.0 595.0 320.4 595.2 0.03 54 25 24932 -52.9 -75.9 5 23.0 -55.1 86 55 632.6 632.6 322.0 633.0 0.05 55 22 25755 -54.1 -76.1 5 22.0 -56.2 88 57 652.5 652.6 322.8 653.0 0.06 56 22 25755 -54.1 -76.1 5 22.0 -56.2 88 57 652.5 652.6 322.8 653.0 0.06 57 20 26370 -51.9 -74.9 5 23.0 -54.7 90 59 677.3 677.3 323.7 677.9 0.07 58 19 26703 -51.5 -74.5 5 23.0 -54.5 90 61 688.6 688.6 324.1 689.3 0.08 59 16 27820 -50.7 -72.7 6 22.0 -54.4 90 66 725.9 725.9 325.3 727.0 0.13 60 13 29182 -47.7 -70.7 5 23.0 -52.9 780.7 780.8 326.8 782.7 0.21 61 13 29182 -46.5 784.8 62 12 29713 -46.9 801.6 TRP 862 1427 22.0 11.0 50 11.0 14.9 55 5 308.0 309.8 293.6 337.1 9.61 WND Sounding variables and indices 1000-500 mb thick: 5777.00 m Freezing level: 571.00 mb = 4841.53 m = 15884.09 ft Wetbulb zero: 692.15 mb = 3282.54 m = 10769.34 ft Precipitable water: 1.13 inches Sfc-500 mean rel hum: 26.59 % Est. max temperature: 34.24 C = 93.63 F Sfc-Lift cond lev (LCL): 830.61 mb = 1746.79 m = 5730.88 ft T: 19.63 C 700-500 lapse rate: 5.52 C/km ThetaE index: 41.65 C Layer 981.0- 623.0 mb Conv cond level (CCL): 779.99 mb = 2284.37 m = 7494.56 ft Mean mixing ratio: 14.40 g/kg Conv temperature: 35.67 C = 96.20 F Cap Strength: 2.69 C Lifted Index: -3.10 C Risk: Severe thunderstorms possible Lifted Index @300 mb: -4.95 C Lifted Index @700 mb: -1.79 C Showalter Index: 2.26 C Risk: Showers probable Total Totals Index: 43.60 C Risk: None Vertical Totals Index: 27.30 C Cross Totals Index: 16.30 C K Index: 20.30 Risk: 20-40 % chance of thunderstorms Sweat Index: 146.00 Risk: None Energy Index: -1.66 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 1256.97 J/kg Max Up Vert Vel: 50.14 m/s Conv Inhibition (B-): 80.29 J/kg Cap Strength: 2.69 C Lift Cond Lev (LCL): 823.75 mb = 1817.95 m = 5964.32 ft Lev Free Conv (LFC): 748.75 mb = 2627.77 m = 8621.20 ft Equ Level (EL): 158.75 mb = 13845.74 m = 45425.09 ft B at Equ Level: 1246.08 J/kg Max Parcel Lev (MPL): 88.75 mb = 17222.85 m = 56504.73 ft Wind level data Storm motion: 118 at 12 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 ---------------------------------------------------------- 0 987 227 280 8 7.9 -1.4 | 291 19 18.2 -6.8 1 979 305 250 3 2.8 1.0 | 289 14 13.1 -4.4 2 946 610 250 6 5.6 2.1 | 282 16 15.9 -3.4 3 925 811 255 6 5.8 1.6 | 284 17 16.1 -3.9 4 914 914 270 5 5.0 -0.0 | 290 16 15.3 -5.4 5 883 1219 325 2 1.1 -1.6 | 302 13 11.4 -7.1 6 862 1427 55 5 -4.1 -2.9 | 323 10 6.2 -8.3 7 850 1549 50 6 -4.6 -3.9 | 329 11 5.7 -9.3 8 822 1829 65 12 -10.9 -5.1 | 3 11 -0.6 -10.5 9 793 2134 80 18 -17.7 -3.1 | 41 11 -7.5 -8.6 10 765 2438 85 25 -24.9 -2.2 | 63 16 -14.6 -7.6 11 738 2743 85 24 -23.9 -2.1 | 61 16 -13.6 -7.5 12 700 3190 65 31 -28.1 -13.1 | 44 26 -17.8 -18.5 13 660 3658 65 22 -19.9 -9.3 | 33 18 -9.7 -14.7 14 612 4267 90 21 -21.0 0.0 | 63 12 -10.7 -5.4 15 567 4877 105 11 -10.6 2.8 | 8 3 -0.3 -2.6 16 500 5890 150 14 -7.0 12.1 | 206 7 3.3 6.7 17 487 6096 150 14 -7.0 12.1 | 206 7 3.3 6.7 18 400 7600 195 11 2.8 10.6 | 248 14 13.1 5.2 19 399 7620 180 13 0.0 13.0 | 234 13 10.3 7.6 20 323 9144 225 17 12.0 12.0 | 254 23 22.3 6.6 21 300 9690 240 15 13.0 7.5 | 265 23 23.3 2.1 22 260 10668 235 24 19.7 13.8 | 254 31 29.9 8.3 23 250 10940 230 26 19.9 16.7 | 250 32 30.2 11.3 24 200 12410 245 28 25.4 11.8 | 260 36 35.7 6.4 25 150 14190 255 24 23.2 6.2 | 269 33 33.5 0.8 26 125 15240 260 32 31.5 5.6 | 270 42 41.8 0.1 27 100 16540 200 33 11.3 31.0 | 220 33 21.6 25.6 28 74 18288 275 14 13.9 -1.2 | 285 25 24.2 -6.7 29 70 18620 110 12 -11.3 4.1 | 37 2 -1.0 -1.3 30 50 20620 90 36 -36.0 0.0 | 78 26 -25.7 -5.4 31 45 21336 100 42 -41.4 7.3 | 93 31 -31.1 1.9 32 30 23760 100 54 -53.2 9.4 | 95 43 -42.9 3.9 33 27 24384 85 54 -53.8 -4.7 | 77 45 -43.5 -10.1 34 20 26370 90 59 -59.0 0.0 | 84 49 -48.7 -5.4 35 15 27432 90 68 -68.0 0.0 | 85 58 -57.7 -5.4 Wind Parameters Mean winds (0-6000m): 87.9 at 15.5 knts Storm direction: 117.9 at 11.6 knts Shear (0-3000m) pos: 5.1 neg: 1.6 tot: 6.8 10-3/s Storm rel Dir Shear (0-3000m): 112.7 deg Storm rel helicity (0-3000m) pos: 96.9 neg: -46.2 tot: 50.7 m^2/s^2 ave: 16.9 10^-3 m/s^2 rel: 0.38 Storm rel vorticity (0-3000m) horiz: 9.4 stream: 3.5 10^-3/s Energy-Hel index: 0.66 Bulk Rich Number: 22.84 Bulk Shear: 55.03 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 ------------------------------------------------------------------------------- 500 254 5 285 16| 0.0 3.9 3.9| 1.0 -9.4 -8.4 -16.8 -0.24| 8.7 -2.1 1000 262 5 288 16| 3.0 2.0 5.0| 23.0 -9.4 13.6 13.6 0.22| 7.7 1.7 1500 295 5 297 17| 5.4 1.3 6.7| 52.0 -9.4 42.6 28.4 0.49| 8.9 4.4 2000 59 8 338 10| 6.7 1.0 7.7| 84.3 -9.4 74.9 37.4 0.64| 9.7 6.2 2500 76 11 2 8| 6.2 0.8 6.9| 96.9 -10.5 86.5 34.6 0.63| 8.9 5.6 3000 75 14 18 9| 5.1 1.6 6.8| 96.9 -46.2 50.7 16.9 0.38| 9.4 3.5 4000 73 16 28 11| 3.2 1.2 4.4|123.6 -65.1 58.5 14.6 0.34| 9.2 3.1 5000 79 16 32 10| 2.0 1.0 3.0|125.3 -69.4 56.0 11.2 0.26| 8.9 2.3 6000 88 15 41 8| 2.0 0.8 2.8|128.8 -69.4 59.4 9.9 0.27| 8.1 2.2 Wrote GIF file: /home/apache/climate/data/raob//DRRN/skewt/DRRN.skewt.20251017.12.gif