UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025052019.upa.cvt Date: 1900Z 20 MAY 25 Searching for KBNA... Searching the city database file for: KBNA ... Date:1900Z 20 MAY 25 Station: KBNA WMO ident: 72327 Latitude: 36.13 Longitude: -86.68 Elevation: 180.00 ------------------------------------------------------------------------------- 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 65 SFC 987 180 25.8 23.3 86 2.5 24.0 205 8 300.1 303.5 297.6 354.5 18.55 2 976 279 23.8 19.8 78 4.0 21.0 205 14 299.0 301.8 295.0 342.9 15.06 3 939 616 20.8 18.4 86 2.4 19.2 205 21 299.3 301.9 294.6 341.1 14.33 4 925 746 20.0 17.9 88 2.1 18.6 210 25 299.8 302.3 294.6 341.0 14.09 5 909 897 18.8 17.1 90 1.7 17.7 210 29 300.0 302.5 294.3 339.9 13.62 6 896 1020 18.2 16.1 88 2.1 16.8 217 33 300.6 303.0 294.0 338.7 12.95 7 888 1098 18.4 15.7 84 2.7 16.6 222 36 301.6 304.0 294.1 339.2 12.73 8 873 1244 17.6 14.7 83 2.9 15.7 231 39 302.3 304.5 293.9 338.1 12.13 9 866 1313 17.2 14.3 83 2.9 15.3 234 38 302.5 304.7 293.8 337.8 11.92 10 850 1472 15.8 13.3 85 2.5 14.2 240 34 302.7 304.8 293.4 336.4 11.37 11 844 1532 15.2 12.6 84 2.6 13.5 240 33 302.7 304.7 293.1 335.1 10.93 12 831 1664 14.6 10.9 78 3.7 12.3 244 33 303.4 305.2 292.5 332.9 9.90 13 816 1818 14.4 10.0 75 4.4 11.7 249 32 304.8 306.5 292.6 333.2 9.49 14 794 2048 12.4 9.9 85 2.5 10.9 247 38 305.0 306.8 292.8 334.1 9.69 15 773 2273 11.4 7.9 79 3.5 9.3 245 39 306.3 307.9 292.4 332.5 8.68 16 766 2349 11.0 7.7 80 3.3 9.0 245 39 306.7 308.3 292.4 332.8 8.64 17 739 2647 8.6 5.9 83 2.7 7.0 245 37 307.2 308.7 292.0 331.2 7.91 18 734 2704 8.2 3.8 74 4.4 5.7 245 37 307.4 308.7 291.2 328.3 6.86 19 722 2840 8.8 -4.2 40 13.0 2.5 245 35 309.5 310.2 289.2 321.6 3.88 20 700 3096 7.6 -12.4 23 20.0 -0.6 245 32 310.9 311.3 288.0 317.7 2.11 21 694 3167 7.0 -13.0 22 20.0 -1.0 245 34 311.0 311.4 287.9 317.6 2.02 22 671 3443 4.8 -15.2 22 20.0 -2.7 245 38 311.5 311.9 287.8 317.3 1.75 23 638 3851 1.2 -14.8 29 16.0 -4.7 248 39 312.0 312.3 288.2 318.2 1.90 24 597 4382 -2.9 -20.9 24 18.0 -8.5 255 39 313.2 313.4 287.8 317.3 1.21 25 583 4570 -3.3 -24.3 18 21.0 -9.3 255 42 314.9 315.1 288.1 318.0 0.92 26 564 4832 -4.7 -26.7 16 22.0 -10.6 255 47 316.2 316.4 288.3 318.9 0.76 27 555 4958 -5.9 -26.9 17 21.0 -11.4 254 50 316.3 316.4 288.4 318.9 0.76 28 545 5100 -6.9 -27.9 17 21.0 -12.2 252 54 316.7 316.9 288.5 319.2 0.71 29 534 5259 -8.3 -27.3 20 19.0 -13.1 249 58 316.9 317.0 288.6 319.6 0.76 30 529 5332 -8.5 -28.5 18 20.0 -13.4 248 60 317.5 317.6 288.7 319.9 0.69 31 525 5391 -8.5 -30.5 15 22.0 -13.6 247 62 318.2 318.3 288.8 320.2 0.57 32 517 5511 -8.1 -36.1 8 28.0 -13.9 245 65 320.1 320.2 289.2 321.3 0.34 33 505 5693 -8.9 -43.9 4 35.0 -14.9 241 67 321.3 321.3 289.3 321.9 0.15 34 502 5739 -8.9 -43.9 4 35.0 -14.9 240 67 321.8 321.9 289.5 322.4 0.16 35 501 5755 -8.9 -42.9 4 34.0 -14.9 240 67 322.0 322.0 289.6 322.7 0.17 36 500 5770 -8.9 -41.9 5 33.0 -14.8 240 67 322.2 322.2 289.6 322.9 0.19 37 499 5785 -8.9 -41.9 5 33.0 -14.8 240 67 322.4 322.4 289.7 323.1 0.19 38 488 5957 -9.7 -40.7 6 31.0 -15.4 240 63 323.5 323.5 290.0 324.3 0.22 39 475 6165 -10.5 -44.5 4 34.0 -16.2 242 59 325.0 325.0 290.5 325.6 0.15 40 466 6311 -11.7 -40.7 7 29.0 -16.9 247 59 325.3 325.3 290.6 326.1 0.23 41 443 6696 -14.7 -38.7 11 24.0 -19.0 245 67 326.2 326.3 291.0 327.4 0.30 42 434 6850 -15.7 -40.7 10 25.0 -19.8 245 67 326.9 326.9 291.1 327.8 0.25 43 412 7240 -18.1 -50.1 4 32.0 -22.1 245 67 328.7 328.7 291.5 329.1 0.09 44 406 7349 -18.3 -55.3 2 37.0 -22.3 245 66 329.8 329.8 291.7 330.0 0.05 45 400 7460 -19.1 -53.1 3 34.0 -22.9 245 63 330.2 330.2 291.8 330.4 0.07 46 377 7896 -22.1 -60.1 2 38.0 -25.4 245 63 331.8 331.8 292.3 332.0 0.03 47 350 8437 -26.1 -61.1 2 35.0 -28.7 245 57 333.6 333.6 292.7 333.7 0.03 48 338 8687 -27.9 -63.9 2 36.0 -30.3 243 56 334.5 334.5 292.9 334.5 0.02 49 322 9033 -30.5 -65.5 2 35.0 -32.5 237 57 335.5 335.5 293.2 335.6 0.02 50 302 9484 -33.9 -64.9 3 31.0 -35.5 226 54 337.0 337.0 293.6 337.0 0.02 51 300 9530 -34.3 -65.3 3 31.0 -35.8 225 54 337.0 337.0 293.6 337.1 0.02 52 279 10034 -37.9 -70.9 2 33.0 -39.1 216 49 338.9 338.9 294.1 339.0 0.01 53 250 10780 -44.9 -69.9 4 25.0 -45.6 220 51 339.3 339.3 294.1 339.4 0.01 54 230 11330 -49.9 -67.9 10 18.0 -50.3 226 53 339.9 339.9 294.3 340.0 0.02 55 221 11590 -51.7 -71.7 7 20.0 -52.1 230 54 341.0 341.0 294.6 341.1 0.01 56 211 11888 -53.5 -71.5 9 18.0 -53.8 235 58 342.8 342.8 295.0 342.8 0.01 57 200 12230 -56.1 -73.1 10 17.0 -56.3 240 61 343.9 343.9 295.3 344.0 0.01 58 186 12690 -58.5 -74.5 11 16.0 -58.7 241 59 347.3 347.3 296.0 347.3 0.01 59 150 14030 -63.9 -81.9 7 18.0 -64.0 255 63 360.0 360.0 298.7 360.0 0.00 60 141 14408 -64.9 -83.9 6 19.0 -65.0 255 57 364.7 364.7 299.6 364.7 0.00 61 100 16500 -65.7 -88.7 3 23.0 -65.8 265 32 400.8 400.8 305.3 400.8 0.00 TRP 141 14408 -64.9 -83.9 6 19.0 -65.0 255 57 364.7 364.7 299.6 364.7 0.00 WND 501 5755 -8.9 -42.9 4 34.0 -14.9 240 67 322.0 322.0 289.6 322.7 0.17 Sounding variables and indices 1000-500 mb thick: 5705.00 m Freezing level: 626.00 mb = 4006.78 m = 13145.44 ft Wetbulb zero: 704.09 mb = 3047.84 m = 9999.35 ft Precipitable water: 1.32 inches Sfc-500 mean rel hum: 48.59 % Est. max temperature: 28.78 C = 83.81 F Sfc-Lift cond lev (LCL): 952.15 mb = 494.43 m = 1622.14 ft T: 21.88 C 700-500 lapse rate: 6.17 C/km ThetaE index: 15.80 C Layer 976.0- 888.0 mb Conv cond level (CCL): 865.25 mb = 1320.15 m = 4331.14 ft Mean mixing ratio: 14.34 g/kg Conv temperature: 28.28 C = 82.90 F Cap Strength: 1.15 C Lifted Index: -2.83 C Risk: Severe thunderstorms possible Lifted Index @300 mb: -1.21 C Lifted Index @700 mb: -0.56 C Showalter Index: -0.60 C Risk: Thunderstorms probable Total Totals Index: 46.90 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 24.70 C Cross Totals Index: 22.20 C K Index: 18.00 Risk: < 20 % chance of thunderstorms Sweat Index: 294.60 Risk: None Energy Index: -2.60 Risk: Severe Thunderstorms probable Parcel Indices Parcel: using 100 mb layer CAPE (B+): 748.75 J/kg Max Up Vert Vel: 38.70 m/s Conv Inhibition (B-): 15.21 J/kg Cap Strength: 1.04 C Lift Cond Lev (LCL): 901.48 mb = 967.98 m = 3175.75 ft Lev Free Conv (LFC): 836.48 mb = 1607.95 m = 5275.36 ft Equ Level (EL): 816.48 mb = 1812.77 m = 5947.33 ft B at Equ Level: 8.01 J/kg Max Parcel Lev (MPL): 136.48 mb = 14606.55 m = 47921.18 ft Wind level data Storm motion: 273 at 30 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 ---------------------------------------------------------- 0 987 180 205 8 3.4 7.3 | 108 28 -27.0 8.9 1 973 305 205 16 6.8 14.5 | 124 29 -23.7 16.2 2 940 610 205 21 8.9 19.0 | 134 30 -21.5 20.7 3 925 746 210 25 12.5 21.7 | 142 29 -17.9 23.3 4 907 914 210 30 15.0 26.0 | 151 32 -15.4 27.6 5 875 1219 230 40 30.6 25.7 | 180 27 0.2 27.4 6 850 1472 240 34 29.4 17.0 | 177 19 -1.0 18.7 7 845 1524 240 33 28.6 16.5 | 174 18 -1.8 18.2 8 815 1829 250 32 30.1 10.9 | 178 13 -0.4 12.6 9 785 2134 245 40 36.3 16.9 | 197 19 5.8 18.6 10 757 2438 245 38 34.4 16.1 | 193 18 4.0 17.7 11 730 2743 245 37 33.5 15.6 | 190 18 3.1 17.3 12 704 3048 245 30 27.2 12.7 | 167 15 -3.2 14.3 13 700 3096 245 32 29.0 13.5 | 175 15 -1.4 15.2 14 678 3353 245 38 34.4 16.1 | 193 18 4.0 17.7 15 652 3658 245 38 34.4 16.1 | 193 18 4.0 17.7 16 628 3962 250 40 37.6 13.7 | 205 17 7.2 15.3 17 604 4267 255 37 35.7 9.6 | 205 12 5.3 11.2 18 559 4877 255 48 46.4 12.4 | 229 21 15.9 14.1 19 518 5486 245 65 58.9 27.5 | 224 41 28.5 29.1 20 501 5755 240 67 58.0 33.5 | 218 45 27.6 35.2 21 500 5770 240 67 58.0 33.5 | 218 45 27.6 35.2 22 499 5791 240 67 58.0 33.5 | 218 45 27.6 35.2 23 479 6096 240 59 51.1 29.5 | 214 37 20.7 31.2 24 460 6401 250 59 55.4 20.2 | 229 33 25.0 21.8 25 442 6706 245 67 60.7 28.3 | 225 43 30.3 30.0 26 424 7010 245 66 59.8 27.9 | 225 42 29.4 29.6 27 408 7315 245 67 60.7 28.3 | 225 43 30.3 30.0 28 400 7460 245 63 57.1 26.6 | 223 39 26.7 28.3 29 391 7620 245 64 58.0 27.0 | 224 40 27.6 28.7 30 375 7925 245 63 57.1 26.6 | 223 39 26.7 28.3 31 359 8230 245 59 53.5 24.9 | 221 35 23.0 26.6 32 345 8534 245 56 50.8 23.7 | 219 32 20.3 25.3 33 330 8839 240 55 47.6 27.5 | 211 34 17.2 29.2 34 317 9144 235 58 47.5 33.3 | 206 39 17.1 34.9 35 300 9530 225 54 38.2 38.2 | 191 41 7.8 39.8 36 290 9754 220 51 32.8 39.1 | 183 41 2.4 40.7 37 278 10058 215 49 28.1 40.1 | 177 42 -2.3 41.8 38 254 10668 220 51 32.8 39.1 | 183 41 2.4 40.7 39 250 10780 220 51 32.8 39.1 | 183 41 2.4 40.7 40 243 10973 220 50 32.1 38.3 | 182 40 1.7 40.0 41 232 11278 225 53 37.5 37.5 | 190 40 7.1 39.1 42 221 11582 230 54 41.4 34.7 | 197 38 10.9 36.4 43 201 12192 240 63 54.6 31.5 | 216 41 24.1 33.2 44 200 12230 240 61 52.8 30.5 | 215 39 22.4 32.2 45 192 12497 235 57 46.7 32.7 | 205 38 16.3 34.4 46 174 13106 255 63 60.9 16.3 | 239 35 30.4 18.0 47 166 13411 250 59 55.4 20.2 | 229 33 25.0 21.8 48 158 13716 245 61 55.3 25.8 | 222 37 24.9 27.4 49 150 14021 250 64 60.1 21.9 | 232 38 29.7 23.6 50 150 14030 255 63 60.9 16.3 | 239 35 30.4 18.0 51 141 14408 255 57 55.1 14.8 | 236 30 24.6 16.4 52 136 14630 255 56 54.1 14.5 | 236 29 23.7 16.2 53 129 14935 260 63 62.0 10.9 | 248 34 31.6 12.6 54 123 15240 275 42 41.8 -3.7 | 280 12 11.4 -2.0 55 117 15545 260 26 25.6 4.5 | 142 8 -4.8 6.2 56 111 15850 260 34 33.5 5.9 | 202 8 3.1 7.6 57 106 16154 265 30 29.9 2.6 | 173 4 -0.5 4.3 58 101 16459 275 41 40.8 -3.6 | 280 11 10.4 -1.9 59 100 16500 265 32 31.9 2.8 | 198 5 1.5 4.5 Wind Parameters Mean winds (0-6000m): 243.1 at 40.6 knts Storm direction: 273.1 at 30.5 knts Shear (0-3000m) pos: 4.6 neg: 0.3 tot: 4.9 10-3/s Storm rel Dir Shear (0-3000m): 73.0 deg Storm rel helicity (0-3000m) pos: 317.4 neg: -41.7 tot: 275.7 m^2/s^2 ave: 91.9 10^-3 m/s^2 rel: 0.51 Storm rel vorticity (0-3000m) horiz: 12.0 stream: 6.2 10^-3/s Energy-Hel index: 1.44 Bulk Rich Number: 6.75 Bulk Shear: 110.91 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 ------------------------------------------------------------------------------- 500 205 17 127 29| 15.5 0.0 15.5|115.1 0.0 115.1 230.1 0.99| 15.7 15.6 1000 212 24 141 28| 16.2 0.0 16.2|270.3 0.0 270.3 270.3 0.98| 18.4 17.9 1500 223 28 153 25| 9.2 0.0 9.2|285.7 -9.9 275.8 183.9 0.72| 16.9 12.1 2000 230 30 160 22| 6.9 1.9 8.8|307.4 -9.9 297.5 148.7 0.69| 15.2 10.5 2500 234 32 166 21| 5.5 1.0 6.5|307.4 -19.4 288.0 115.2 0.63| 12.7 8.0 3000 236 32 168 20| 4.6 0.3 4.9|317.4 -41.7 275.7 91.9 0.51| 12.0 6.2 4000 239 34 175 19| 4.1 0.2 4.3|350.5 -41.7 308.8 77.2 0.53| 10.5 5.6 5000 243 36 185 18| 4.0 1.5 5.4|378.1 -46.3 331.8 66.4 0.48| 10.6 5.0 6000 243 41 196 21| 2.8 2.3 5.1|401.4-149.2 252.1 42.0 0.32| 11.1 3.6 Wrote GIF file: /home/apache/climate/data/raob//KBNA/skewt/KBNA.skewt.20250520.19.gif