UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025051619.upa.cvt Date: 1900Z 16 MAY 25 Searching for KBNA... Searching the city database file for: KBNA ... Date:1900Z 16 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 75 SFC 988 180 26.4 22.0 77 4.4 23.2 215 6 300.6 303.7 296.8 350.7 17.09 2 983 225 26.6 20.6 70 6.0 22.3 213 11 301.2 304.1 296.1 347.5 15.73 3 975 298 25.8 19.8 70 6.0 21.6 210 18 301.1 303.9 295.6 345.4 15.07 4 925 761 21.4 18.6 84 2.8 19.5 205 23 301.2 303.9 295.4 344.5 14.74 5 850 1488 15.6 14.6 94 1.0 15.0 225 37 302.5 304.8 294.1 339.1 12.39 6 849 1498 15.6 14.6 94 1.0 15.0 225 37 302.6 304.9 294.1 339.3 12.40 7 834 1649 14.6 13.1 91 1.5 13.6 233 38 303.1 305.2 293.6 337.0 11.44 8 815 1844 16.0 10.0 68 6.0 12.2 245 42 306.6 308.3 293.1 335.3 9.50 9 763 2401 12.2 4.2 58 8.0 7.6 254 43 308.3 309.6 291.5 329.1 6.79 10 740 2657 10.4 1.4 54 9.0 5.5 255 42 309.1 310.1 290.8 326.8 5.73 11 700 3119 9.0 -14.0 18 23.0 -0.2 245 52 312.5 312.8 288.2 318.5 1.85 12 698 3143 8.8 -14.2 18 23.0 -0.3 245 52 312.5 312.8 288.2 318.5 1.82 13 650 3728 4.6 -7.4 41 12.0 -0.9 243 60 314.2 314.8 290.3 325.0 3.37 14 607 4281 -0.3 -10.3 47 10.0 -4.5 240 66 314.7 315.3 290.0 324.1 2.88 15 596 4427 -1.1 -11.1 47 10.0 -5.2 238 66 315.4 316.0 290.1 324.4 2.75 16 528 5380 -9.1 -12.9 74 3.8 -10.5 248 63 317.0 317.5 290.5 325.8 2.68 17 523 5454 -9.7 -14.2 70 4.5 -11.3 249 63 317.1 317.6 290.3 325.1 2.44 18 500 5800 -12.3 -14.1 86 1.8 -12.9 250 68 318.0 318.5 290.7 326.5 2.57 19 495 5877 -12.5 -13.7 91 1.2 -12.9 249 70 318.7 319.2 291.0 327.6 2.68 20 477 6158 -14.5 -16.0 88 1.5 -15.0 246 74 319.6 320.1 290.9 327.3 2.30 21 423 7058 -19.1 -28.1 45 9.0 -21.1 251 60 324.9 325.1 291.2 328.1 0.89 22 400 7470 -22.5 -29.5 53 7.0 -23.9 255 61 325.7 325.9 291.3 328.7 0.83 23 373 7978 -26.3 -30.6 67 4.3 -27.1 265 68 327.3 327.4 291.7 330.2 0.80 24 358 8275 -25.7 -29.3 72 3.6 -26.4 264 76 332.0 332.1 293.2 335.4 0.94 25 343 8584 -27.9 -31.2 73 3.3 -28.5 259 86 333.1 333.2 293.3 336.1 0.82 26 324 8990 -30.9 -34.5 71 3.6 -31.4 255 86 334.4 334.5 293.5 336.8 0.63 27 317 9144 -32.3 -35.7 72 3.4 -32.8 255 83 334.5 334.7 293.5 336.7 0.57 28 314 9211 -32.9 -36.6 69 3.7 -33.4 255 84 334.6 334.7 293.4 336.6 0.53 29 306 9392 -34.3 -37.5 73 3.2 -34.7 255 85 335.1 335.2 293.6 337.0 0.50 30 300 9530 -35.7 -39.2 70 3.5 -36.1 255 84 335.1 335.1 293.5 336.7 0.43 31 293 9694 -37.1 -41.3 65 4.2 -37.5 251 84 335.3 335.4 293.5 336.7 0.35 32 276 10104 -40.7 -44.2 69 3.5 -41.0 253 87 335.9 336.0 293.6 337.0 0.27 33 267 10329 -42.5 -46.3 66 3.8 -42.8 255 89 336.5 336.5 293.7 337.4 0.22 34 261 10482 -43.9 -47.5 67 3.6 -44.1 257 90 336.6 336.7 293.7 337.4 0.20 35 258 10560 -44.5 -48.3 66 3.8 -44.7 258 90 336.9 336.9 293.7 337.6 0.19 36 256 10612 -45.1 -48.7 67 3.6 -45.3 259 91 336.7 336.8 293.7 337.4 0.18 37 250 10770 -46.5 -50.5 64 4.0 -46.7 260 89 336.9 337.0 293.7 337.5 0.15 38 244 10931 -47.3 -50.7 68 3.4 -47.5 260 91 338.1 338.1 294.0 338.7 0.15 39 242 10986 -47.5 -51.1 66 3.6 -47.7 260 91 338.6 338.6 294.1 339.2 0.14 40 239 11068 -47.9 -51.2 69 3.3 -48.1 261 92 339.2 339.2 294.3 339.8 0.14 41 233 11235 -49.3 -53.1 64 3.8 -49.5 262 93 339.5 339.6 294.3 340.0 0.12 42 221 11580 -52.1 -55.6 66 3.5 -52.2 265 96 340.4 340.4 294.5 340.8 0.09 43 213 11818 -54.1 -57.8 64 3.7 -54.2 269 108 340.9 340.9 294.6 341.2 0.07 44 207 12001 -55.1 -58.9 63 3.8 -55.2 272 113 342.1 342.1 294.9 342.4 0.07 45 200 12220 -56.3 -59.3 69 3.0 -56.4 270 115 343.6 343.6 295.3 343.9 0.06 46 198 12284 -56.7 -59.1 74 2.4 -56.8 271 116 344.0 344.0 295.3 344.2 0.07 47 191 12511 -58.7 -61.4 71 2.7 -58.7 275 121 344.3 344.3 295.4 344.5 0.05 48 187 12644 -59.9 -62.1 75 2.2 -59.9 275 122 344.5 344.5 295.4 344.7 0.05 49 184 12745 -60.6 -63.1 73 2.4 -60.7 275 122 344.8 344.9 295.5 345.0 0.04 50 183 12779 -60.9 -63.4 72 2.5 -60.9 275 122 345.0 345.0 295.6 345.2 0.04 51 181 12847 -61.3 -63.5 75 2.2 -61.3 275 122 345.4 345.4 295.6 345.6 0.04 52 178 12951 -62.1 -64.6 72 2.5 -62.1 276 121 345.8 345.8 295.7 345.9 0.04 53 175 13056 -63.1 -65.1 77 2.0 -63.1 276 120 345.8 345.8 295.7 345.9 0.03 54 171 13198 -64.1 -66.7 70 2.6 -64.1 277 119 346.4 346.4 295.8 346.6 0.03 55 167 13342 -65.3 -67.4 75 2.1 -65.3 278 117 346.8 346.8 296.0 346.9 0.03 56 163 13490 -66.9 -70.2 63 3.3 -67.0 279 116 346.5 346.5 295.8 346.6 0.02 57 156 13754 -68.3 -70.8 70 2.5 -68.3 280 113 348.5 348.5 296.3 348.6 0.02 58 150 13990 -67.7 -70.5 67 2.8 -67.7 280 100 353.5 353.5 297.4 353.5 0.02 59 100 16450 -65.5 -75.5 24 10.0 -65.6 275 38 401.2 401.2 305.4 401.2 0.01 TRP 156 13754 -68.3 -70.8 70 2.5 -68.3 280 113 348.5 348.5 296.3 348.6 0.02 WND 184 12745 -60.6 -63.1 73 2.4 -60.7 275 122 344.8 344.9 295.5 345.0 0.04 Sounding variables and indices 1000-500 mb thick: 5725.00 m Freezing level: 609.63 mb = 4247.26 m = 13934.40 ft Wetbulb zero: 701.49 mb = 3101.27 m = 10174.64 ft Precipitable water: 1.54 inches Sfc-500 mean rel hum: 60.85 % Est. max temperature: 28.76 C = 83.76 F Sfc-Lift cond lev (LCL): 926.95 mb = 742.51 m = 2436.02 ft T: 21.58 C 700-500 lapse rate: 7.94 C/km ThetaE index: 20.83 C Layer 834.0- 650.0 mb Conv cond level (CCL): 877.25 mb = 1216.73 m = 3991.85 ft Mean mixing ratio: 14.73 g/kg Conv temperature: 27.83 C = 82.09 F Cap Strength: 1.16 C Lifted Index: -7.37 C Risk: Severe thunderstorms probable Lifted Index @300 mb: -4.31 C Lifted Index @700 mb: -0.10 C Showalter Index: -5.17 C Risk: Severe thunderstorms possible Total Totals Index: 54.80 C Risk: Scattered heavy thunderstorms Vertical Totals Index: 27.90 C Cross Totals Index: 26.90 C K Index: 19.50 Risk: < 20 % chance of thunderstorms Sweat Index: 511.03 Risk: Severe Thunderstorms possible Energy Index: -2.53 Risk: Severe Thunderstorms probable Parcel Indices Parcel: using 100 mb layer CAPE (B+): 1636.54 J/kg Max Up Vert Vel: 57.21 m/s Conv Inhibition (B-): 4.04 J/kg Cap Strength: 0.93 C Lift Cond Lev (LCL): 886.85 mb = 1123.10 m = 3684.66 ft Lev Free Conv (LFC): 861.85 mb = 1368.94 m = 4491.23 ft Equ Level (EL): 821.85 mb = 1773.50 m = 5818.49 ft B at Equ Level: 10.53 J/kg Wind level data Storm motion: 271 at 38 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 ---------------------------------------------------------- 0 988 180 215 6 3.4 4.9 | 100 35 -34.1 5.8 1 974 305 210 19 9.5 16.5 | 122 33 -28.1 17.3 2 941 610 205 19 8.0 17.2 | 121 35 -29.5 18.1 3 925 761 205 23 9.7 20.8 | 128 35 -27.9 21.7 4 909 914 210 22 11.0 19.1 | 127 33 -26.6 19.9 5 877 1219 210 29 14.5 25.1 | 138 35 -23.1 26.0 6 850 1488 225 37 26.2 26.2 | 157 29 -11.4 27.0 7 846 1524 225 36 25.5 25.5 | 155 29 -12.1 26.3 8 816 1829 245 42 38.1 17.7 | 182 19 0.5 18.6 9 787 2134 250 46 43.2 15.7 | 199 18 5.7 16.6 10 759 2438 255 43 41.5 11.1 | 198 13 4.0 12.0 11 732 2743 255 42 40.6 10.9 | 194 12 3.0 11.7 12 706 3048 245 52 47.1 22.0 | 203 25 9.6 22.8 13 700 3119 245 52 47.1 22.0 | 203 25 9.6 22.8 14 680 3353 250 56 52.6 19.2 | 217 25 15.0 20.0 15 654 3658 245 60 54.4 25.4 | 213 31 16.8 26.2 16 630 3962 235 62 50.8 35.6 | 200 39 13.2 36.4 17 606 4267 240 66 57.2 33.0 | 210 39 19.6 33.8 18 583 4572 235 67 54.9 38.4 | 204 43 17.3 39.3 19 561 4877 235 64 52.4 36.7 | 202 40 14.9 37.6 20 540 5182 245 63 57.1 26.6 | 215 34 19.5 27.5 21 520 5486 250 63 59.2 21.5 | 224 31 21.6 22.4 22 501 5791 255 66 63.8 17.1 | 236 32 26.2 17.9 23 500 5800 250 68 63.9 23.3 | 228 36 26.3 24.1 24 481 6096 245 75 68.0 31.7 | 223 45 30.4 32.5 25 461 6401 250 70 65.8 23.9 | 229 38 28.2 24.8 26 443 6706 245 65 58.9 27.5 | 217 35 21.3 28.3 27 408 7315 255 56 54.1 14.5 | 227 23 16.5 15.3 28 400 7470 255 61 58.9 15.8 | 232 27 21.3 16.6 29 392 7620 255 61 58.9 15.8 | 232 27 21.3 16.6 30 375 7925 265 67 66.7 5.8 | 257 30 29.2 6.7 31 360 8230 265 75 74.7 6.5 | 259 38 37.1 7.4 32 345 8534 260 86 84.7 14.9 | 251 50 47.1 15.8 33 330 8839 255 88 85.0 22.8 | 244 53 47.4 23.6 34 317 9144 255 83 80.2 21.5 | 242 48 42.6 22.3 35 303 9449 255 86 83.1 22.3 | 243 51 45.5 23.1 36 300 9530 255 84 81.1 21.7 | 243 49 43.6 22.6 37 290 9754 250 84 78.9 28.7 | 234 51 41.4 29.6 38 265 10363 255 89 86.0 23.0 | 244 54 48.4 23.9 39 254 10668 260 91 89.6 15.8 | 252 55 52.0 16.7 40 250 10770 260 89 87.6 15.5 | 252 53 50.1 16.3 41 242 10973 260 91 89.6 15.8 | 252 55 52.0 16.7 42 221 11582 265 96 95.6 8.4 | 261 59 58.1 9.2 43 211 11887 270 112 112.0 -0.0 | 269 74 74.4 0.8 44 201 12192 275 114 113.6 -9.9 | 277 77 76.0 -9.1 45 200 12220 270 115 115.0 -0.0 | 269 77 77.4 0.8 46 191 12497 275 121 120.5 -10.5 | 277 84 83.0 -9.7 47 184 12745 275 122 121.5 -10.6 | 277 85 84.0 -9.8 48 182 12802 275 122 121.5 -10.6 | 277 85 84.0 -9.8 49 157 13716 280 114 112.3 -19.8 | 284 77 74.7 -18.9 50 156 13754 280 113 111.3 -19.6 | 284 76 73.7 -18.8 51 150 13990 280 100 98.5 -17.4 | 285 63 60.9 -16.5 52 149 14021 280 100 98.5 -17.4 | 285 63 60.9 -16.5 53 142 14326 275 73 72.7 -6.4 | 279 36 35.1 -5.5 54 135 14630 270 54 54.0 -0.0 | 267 16 16.4 0.8 55 128 14935 260 53 52.2 9.2 | 235 18 14.6 10.1 56 122 15240 245 57 51.7 24.1 | 209 29 14.1 24.9 57 116 15545 255 70 67.6 18.1 | 238 36 30.0 19.0 58 105 16154 265 33 32.9 2.9 | 128 6 -4.7 3.7 59 100 16450 275 38 37.9 -3.3 | 353 2 0.3 -2.5 60 100 16459 275 41 40.8 -3.6 | 310 4 3.3 -2.7 61 95 16764 275 41 40.8 -3.6 | 310 4 3.3 -2.7 Wind Parameters Mean winds (0-6000m): 241.3 at 50.1 knts Storm direction: 271.3 at 37.6 knts Shear (0-3000m) pos: 5.6 neg: 4.8 tot: 10.4 10-3/s Storm rel Dir Shear (0-3000m): 106.8 deg Storm rel helicity (0-3000m) pos: 401.6 neg: -7.3 tot: 394.4 m^2/s^2 ave: 131.5 10^-3 m/s^2 rel: 0.66 Storm rel vorticity (0-3000m) horiz: 13.3 stream: 8.8 10^-3/s Energy-Hel index: 3.91 Bulk Rich Number: 9.13 Bulk Shear: 179.28 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 ------------------------------------------------------------------------------- 500 208 18 119 34| 0.0 15.4 15.4|129.7 -0.8 128.9 257.8 0.91| 16.6 15.1 1000 208 21 124 34| 3.9 7.7 11.6|200.3 -4.5 195.8 195.8 0.86| 13.1 11.3 1500 215 25 133 32| 8.1 5.1 13.2|326.0 -4.5 321.5 214.3 0.84| 15.5 12.9 2000 226 30 143 27| 8.8 3.9 12.7|382.2 -4.5 377.7 188.9 0.83| 15.0 12.5 2500 234 33 151 23| 6.8 3.1 9.9|382.2 -7.3 375.0 150.0 0.75| 13.0 9.8 3000 237 35 158 21| 5.6 4.8 10.4|401.6 -7.3 394.4 131.5 0.66| 13.3 8.8 4000 240 42 175 22| 4.2 5.4 9.6|476.9 -88.9 388.0 97.0 0.50| 13.3 6.6 5000 239 46 185 25| 4.1 4.6 8.7|581.1-152.2 428.9 85.8 0.45| 12.8 5.8 6000 241 50 194 26| 4.1 4.9 9.0|684.9-224.9 460.0 76.7 0.40| 13.1 5.2 Wrote GIF file: /home/apache/climate/data/raob//KBNA/skewt/KBNA.skewt.20250516.19.gif