UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025041812.upa.cvt Date: 1200Z 18 APR 25 Searching for CYEV... Searching the city database file for: CYEV ... Date:1200Z 18 APR 25 Station: CYEV WMO ident: 71957 Latitude: 68.30 Longitude: -133.48 Elevation: 68.00 ------------------------------------------------------------------------------- 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 -7 SFC 986 68 -2.7 -4.0 91 1.3 -3.1 35 12 271.5 272.0 270.7 279.4 2.88 2 977 146 -3.3 -4.7 90 1.4 -3.8 50 15 271.7 272.1 270.6 279.1 2.75 3 970 207 -1.3 -3.6 84 2.3 -2.1 62 18 274.2 274.7 272.6 282.5 3.02 4 931 559 0.4 -6.6 59 7.0 -2.1 88 15 279.2 279.6 274.7 286.3 2.50 5 925 614 0.4 -6.6 59 7.0 -2.1 90 14 279.7 280.1 275.0 286.8 2.52 6 912 728 0.0 -5.0 69 5.0 -1.9 88 14 280.4 280.9 275.9 288.6 2.89 7 850 1289 -3.5 -4.4 93 0.9 -3.8 75 7 282.5 283.0 277.5 291.7 3.24 8 828 1496 -5.1 -5.2 99 0.1 -5.1 136 10 282.9 283.5 277.6 291.8 3.13 9 817 1601 -5.3 -7.2 86 1.9 -6.0 154 10 283.8 284.3 277.4 291.6 2.72 10 799 1775 -5.9 -6.8 93 0.9 -6.2 174 7 285.0 285.5 278.3 293.2 2.87 11 796 1805 -5.1 -6.5 90 1.4 -5.6 177 6 286.1 286.6 278.9 294.6 2.95 12 749 2281 -7.3 -7.4 99 0.1 -7.4 90 2 288.8 289.3 280.1 297.3 2.92 13 700 2806 -9.9 -10.6 95 0.7 -10.1 280 6 291.5 292.0 280.8 298.8 2.43 14 673 3108 -11.1 -11.7 95 0.6 -11.3 277 5 293.5 293.9 281.5 300.5 2.32 15 545 4692 -21.5 -23.4 85 1.9 -21.9 256 8 299.4 299.5 282.5 302.8 1.06 16 530 4896 -23.1 -27.3 68 4.2 -23.8 240 8 299.8 300.0 282.3 302.3 0.77 17 500 5320 -25.9 -28.7 77 2.8 -26.3 235 9 301.5 301.6 282.9 303.8 0.72 18 481 5600 -27.9 -31.0 75 3.1 -28.3 236 11 302.4 302.5 283.1 304.3 0.60 19 437 6284 -33.3 -37.1 69 3.8 -33.7 233 16 303.9 304.0 283.5 305.2 0.36 20 423 6512 -35.3 -38.1 75 2.8 -35.5 226 19 304.2 304.3 283.5 305.4 0.34 21 400 6900 -38.7 -42.2 69 3.5 -38.9 230 24 304.7 304.7 283.6 305.5 0.23 22 341 7970 -48.3 -52.2 64 3.9 -48.4 216 22 305.9 305.9 283.9 306.2 0.09 23 305 8694 -53.3 -57.4 61 4.1 -53.4 222 28 308.8 308.8 284.9 309.0 0.05 24 300 8800 -53.9 -57.5 65 3.6 -54.0 220 30 309.4 309.4 285.2 309.6 0.05 25 288 9062 -55.7 -58.5 71 2.8 -55.8 220 27 310.4 310.4 285.5 310.6 0.05 26 284 9152 -54.9 -68.9 16 14.0 -55.1 220 29 312.8 312.8 286.4 312.9 0.01 27 282 9197 -54.1 -76.1 5 22.0 -54.3 219 30 314.6 314.6 286.9 314.6 0.00 28 278 9290 -53.3 -71.3 9 18.0 -53.5 218 31 317.1 317.1 287.8 317.1 0.01 29 250 9980 -50.7 -70.7 8 20.0 -51.0 225 33 330.7 330.7 291.9 330.7 0.01 30 244 10137 -51.1 -72.1 6 21.0 -51.4 225 34 332.4 332.4 292.4 332.4 0.01 31 228 10579 -47.7 -69.7 6 22.0 -48.2 229 32 344.1 344.1 295.3 344.2 0.01 32 218 10873 -48.3 -70.3 6 22.0 -48.8 242 28 347.6 347.6 296.1 347.7 0.01 33 212 11056 -46.9 -69.9 6 23.0 -47.5 247 27 352.6 352.6 297.2 352.6 0.01 34 200 11440 -47.5 -70.5 5 23.0 -48.1 235 26 357.6 357.6 298.2 357.6 0.01 35 194 11641 -49.1 -71.1 6 22.0 -49.6 236 23 358.1 358.1 298.4 358.2 0.01 36 150 13330 -50.1 -73.1 5 23.0 -50.7 215 24 383.7 383.7 302.9 383.8 0.01 37 137 13920 -51.5 -74.5 5 23.0 -52.1 227 20 391.4 391.4 304.0 391.4 0.01 38 131 14212 -49.9 -74.9 4 25.0 -50.6 230 15 399.3 399.3 305.1 399.3 0.01 39 114 15112 -54.1 -78.1 4 24.0 -54.6 254 19 407.6 407.6 306.2 407.7 0.01 40 109 15401 -52.7 -77.7 3 25.0 -53.3 253 22 415.5 415.5 307.2 415.6 0.01 41 108 15461 -51.1 -77.1 3 26.0 -51.8 256 23 419.7 419.7 307.7 419.7 0.01 42 103 15768 -52.3 -77.3 3 25.0 -53.0 275 20 423.1 423.1 308.1 423.1 0.01 43 100 15960 -51.1 -77.1 3 26.0 -51.9 245 11 429.0 429.0 308.7 429.0 0.01 44 98 16091 -51.9 -76.9 3 25.0 -52.7 242 12 429.9 429.9 308.9 430.0 0.01 45 70 18280 -49.3 -78.3 2 29.0 -50.7 320 11 478.9 478.9 313.4 479.0 0.01 46 53 20107 -48.3 -80.3 1 32.0 -50.2 211 10 520.9 520.9 316.4 521.0 0.01 47 50 20490 -48.9 -80.9 1 32.0 -50.8 210 6 528.2 528.2 316.8 528.3 0.01 48 30 23840 -49.5 -84.5 1 35.0 -52.2 140 10 609.7 609.7 321.0 609.8 0.01 49 26 24775 -50.1 -85.1 1 35.0 -52.9 168 11 633.5 633.5 322.0 633.5 0.01 50 21 26178 -46.9 -84.9 1 38.0 -51.2 143 8 683.0 683.0 323.9 683.1 0.01 51 20 26500 -47.9 -84.9 1 37.0 -52.1 75 5 689.6 689.6 324.1 689.7 0.01 52 14 28852 -48.7 -85.7 1 37.0 -53.7 141 10 760.9 760.9 326.3 761.0 0.02 53 10 31090 -43.7 -83.7 0 40.0 -52.1 120 11 856.4 856.4 328.5 856.8 0.04 54 8.1 32512 -41.7 -82.7 0 41.0 -52.1 917.6 917.6 329.8 918.1 0.05 55 7.2 33306 -44.5 -84.5 0 40.0 -53.9 937.5 937.5 330.1 938.0 0.04 56 6.4 34100 -41.5 -82.5 0 41.0 -53.1 982.3 982.4 330.9 983.1 0.07 57 5.4 35250 -42.5 -82.5 0 40.0 -54.4 1026.8 1026.9 331.6 1027.8 0.08 58 4.5 36502 -35.1 -78.1 0 43.0 -52.6 1116.5 1116.6 332.9 1119.1 0.20 59 4.1 37149 -36.7 -79.7 0 43.0 -53.7 1138.9 1139.0 333.2 1141.2 0.17 60 3.6 38058 -32.3 -76.3 0 44.0 -53.0 1204.0 1204.3 333.9 1208.9 0.33 TRP 288 9062 -55.7 -58.5 71 2.8 -55.8 220 27 310.4 310.4 285.5 310.6 0.05 WND Sounding variables and indices 1000-500 mb thick: 5327.00 m Freezing level: Surface below freezing Freezing level: 940.18 mb = 475.91 m = 1561.37 ft Freezing level: 912.00 mb = 727.67 m = 2387.34 ft Wetbulb zero: Below ground Precipitable water: 0.48 inches Sfc-500 mean rel hum: 86.79 % Est. max temperature: 8.47 C = 47.25 F Sfc-Lift cond lev (LCL): 965.90 mb = 243.50 m = 798.88 ft T: -1.12 C 700-500 lapse rate: 6.36 C/km ThetaE index: 0.21 C Layer 817.0- 799.0 mb Conv cond level (CCL): 729.86 mb = 2482.05 m = 8143.12 ft Mean mixing ratio: 2.80 g/kg Conv temperature: 15.50 C = 59.90 F Cap Strength: 12.80 C Lifted Index: 13.69 C Risk: None Lifted Index @300 mb: 16.89 C Lifted Index @700 mb: 8.71 C Showalter Index: 9.06 C Risk: None Total Totals Index: 43.90 C Risk: None Vertical Totals Index: 22.40 C Cross Totals Index: 21.50 C K Index: 17.30 Risk: < 20 % chance of thunderstorms Sweat Index: 23.00 Risk: None Energy Index: 2.51 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 41.05 J/kg Max Up Vert Vel: 9.06 m/s Conv Inhibition (B-): 71931.65 J/kg Cap Strength: 13.61 C Lift Cond Lev (LCL): 872.84 mb = 1077.58 m = 3535.31 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 244 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 ---------------------------------------------------------- 0 986 68 35 12 -6.9 -9.8 | 45 18 -12.4 -12.6 1 959 305 80 22 -21.7 -3.8 | 76 28 -27.2 -6.6 2 925 610 90 14 -14.0 0.0 | 82 20 -19.5 -2.7 3 925 614 90 14 -14.0 0.0 | 82 20 -19.5 -2.7 4 891 914 85 13 -13.0 -1.1 | 78 19 -18.5 -3.9 5 857 1219 70 7 -6.6 -2.4 | 67 13 -12.1 -5.1 6 850 1289 75 7 -6.8 -1.8 | 70 13 -12.3 -4.5 7 825 1524 145 11 -6.3 9.0 | 118 13 -11.8 6.3 8 793 1829 180 6 0.0 6.0 | 121 6 -5.5 3.3 9 763 2134 170 4 -0.7 3.9 | 101 6 -6.2 1.2 10 734 2438 0 0 -0.0 -0.0 | 64 6 -5.5 -2.7 11 706 2743 290 6 5.6 -2.1 | 359 5 0.1 -4.8 12 700 2806 280 6 5.9 -1.0 | 354 4 0.4 -3.8 13 625 3658 270 4 4.0 -0.0 | 29 3 -1.5 -2.7 14 576 4267 290 7 6.6 -2.4 | 349 5 1.0 -5.1 15 531 4877 240 8 6.9 4.0 | 228 2 1.4 1.3 16 500 5320 235 9 7.4 5.2 | 217 3 1.8 2.4 17 488 5486 245 11 10.0 4.6 | 247 5 4.4 1.9 18 468 5791 220 12 7.7 9.2 | 199 7 2.2 6.5 19 448 6096 245 13 11.8 5.5 | 246 7 6.2 2.8 20 429 6401 225 18 12.7 12.7 | 216 12 7.2 10.0 21 400 6900 230 24 18.4 15.4 | 225 18 12.8 12.7 22 393 7010 235 25 20.5 14.3 | 232 19 14.9 11.6 23 359 7620 225 26 18.4 18.4 | 219 20 12.8 15.6 24 343 7925 215 22 12.6 18.0 | 205 17 7.1 15.3 25 327 8230 230 21 16.1 13.5 | 224 15 10.5 10.8 26 300 8800 220 30 19.3 23.0 | 214 24 13.7 20.2 27 288 9062 220 27 17.4 20.7 | 213 21 11.8 17.9 28 284 9144 220 29 18.6 22.2 | 214 23 13.1 19.5 29 271 9449 215 34 19.5 27.9 | 209 29 14.0 25.1 30 250 9980 225 33 23.3 23.3 | 221 27 17.8 20.6 31 247 10058 220 32 20.6 24.5 | 215 26 15.0 21.8 32 236 10363 240 38 32.9 19.0 | 239 32 27.4 16.3 33 225 10668 225 29 20.5 20.5 | 220 23 15.0 17.8 34 215 10973 250 27 25.4 9.2 | 252 21 19.8 6.5 35 200 11440 235 26 21.3 14.9 | 232 20 15.8 12.2 36 196 11582 235 25 20.5 14.3 | 232 19 14.9 11.6 37 187 11887 240 17 14.7 8.5 | 238 11 9.2 5.8 38 178 12192 205 15 6.3 13.6 | 184 11 0.8 10.9 39 170 12497 230 18 13.8 11.6 | 223 12 8.3 8.8 40 163 12802 215 21 12.0 17.2 | 204 16 6.5 14.5 41 155 13106 230 32 24.5 20.6 | 227 26 19.0 17.8 42 150 13330 215 24 13.8 19.7 | 206 19 8.2 16.9 43 148 13411 215 24 13.8 19.7 | 206 19 8.2 16.9 44 135 14021 230 19 14.6 12.2 | 224 13 9.0 9.5 45 129 14326 230 12 9.2 7.7 | 216 6 3.7 5.0 46 123 14630 265 19 18.9 1.7 | 275 13 13.4 -1.1 47 117 14935 265 20 19.9 1.7 | 274 14 14.4 -1.0 48 112 15240 245 19 17.2 8.0 | 246 13 11.7 5.3 49 107 15545 260 25 24.6 4.3 | 265 19 19.1 1.6 50 102 15850 280 18 17.7 -3.1 | 296 14 12.2 -5.9 51 100 15960 245 11 10.0 4.6 | 247 5 4.4 1.9 52 97 16154 240 13 11.3 6.5 | 237 7 5.7 3.8 53 93 16459 240 14 12.1 7.0 | 237 8 6.6 4.3 54 88 16764 260 20 19.7 3.5 | 267 14 14.2 0.7 55 84 17069 285 16 15.5 -4.1 | 305 12 9.9 -6.9 56 80 17374 240 12 10.4 6.0 | 236 6 4.9 3.3 57 77 17678 255 13 12.6 3.4 | 265 7 7.0 0.6 58 73 17983 255 19 18.4 4.9 | 260 13 12.8 2.2 59 70 18280 320 11 7.1 -8.4 | 352 11 1.5 -11.2 60 70 18288 270 17 17.0 -0.0 | 283 12 11.5 -2.7 61 67 18593 320 10 6.4 -7.7 | 355 10 0.9 -10.4 62 64 18898 295 1 0.9 -0.4 | 56 6 -4.6 -3.2 63 61 19202 200 10 3.4 9.4 | 162 7 -2.1 6.7 64 58 19507 245 15 13.6 6.3 | 246 9 8.1 3.6 65 55 19812 250 11 10.3 3.8 | 258 5 4.8 1.0 66 53 20117 210 10 5.0 8.7 | 175 6 -0.5 5.9 67 50 20490 210 6 3.0 5.2 | 134 4 -2.5 2.5 68 44 21336 160 11 -3.8 10.3 | 129 12 -9.3 7.6 69 42 21641 200 13 4.4 12.2 | 173 10 -1.1 9.5 70 35 22860 360 1 -0.0 -1.0 | 56 7 -5.5 -3.7 71 30 23840 140 10 -6.4 7.7 | 112 13 -12.0 4.9 72 29 24079 80 10 -9.8 -1.7 | 74 16 -15.4 -4.5 73 25 24994 195 11 2.8 10.6 | 161 8 -2.7 7.9 74 23 25603 165 10 -2.6 9.7 | 130 11 -8.1 6.9 75 22 25908 200 10 3.4 9.4 | 162 7 -2.1 6.7 76 20 26500 75 5 -4.8 -1.3 | 69 11 -10.4 -4.0 77 17 27432 80 9 -8.9 -1.6 | 73 15 -14.4 -4.3 78 17 27737 115 10 -9.1 4.2 | 96 15 -14.6 1.5 79 16 28042 100 12 -11.8 2.1 | 88 17 -17.4 -0.7 80 15 28346 120 10 -8.7 5.0 | 99 14 -14.2 2.3 81 14 28956 145 10 -5.7 8.2 | 116 13 -11.3 5.5 82 13 29261 135 10 -7.1 7.1 | 109 13 -12.6 4.3 83 13 29566 90 10 -10.0 0.0 | 80 16 -15.5 -2.7 84 12 29870 80 14 -13.8 -2.4 | 75 20 -19.3 -5.2 85 11 30175 130 20 -15.3 12.9 | 116 23 -20.9 10.1 86 10 31090 120 11 -9.5 5.5 | 100 15 -15.1 2.8 Wind Parameters Mean winds (0-6000m): 213.7 at 8.2 knts Storm direction: 243.7 at 6.2 knts Shear (0-3000m) pos: 1.7 neg: 1.6 tot: 3.3 10-3/s Storm rel Dir Shear (0-3000m): -41.4 deg Storm rel helicity (0-3000m) pos: 137.0 neg: -42.7 tot: 94.3 m^2/s^2 ave: 31.4 10^-3 m/s^2 rel: 0.15 Storm rel vorticity (0-3000m) horiz: 11.5 stream: 1.7 10^-3/s Energy-Hel index: 0.04 Bulk Rich Number: 0.51 Bulk Shear: 80.03 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 75 18 72 24| 12.9 0.0 12.9| 92.0 0.0 92.0 184.0 0.66| 23.2 15.4 1000 80 15 75 21| 6.4 2.9 9.4| 92.0 -14.0 78.0 78.0 0.42| 14.6 6.2 1500 85 13 78 19| 7.2 1.9 9.1|134.7 -17.7 117.0 78.0 0.53| 15.1 8.0 2000 95 11 84 17| 4.1 1.5 5.6|136.6 -21.4 115.2 57.6 0.42| 13.3 5.6 2500 97 10 84 15| 2.0 1.2 3.2|136.6 -36.4 100.2 40.1 0.23| 12.5 2.8 3000 97 9 83 14| 1.7 1.6 3.3|137.0 -42.7 94.3 31.4 0.15| 11.5 1.7 4000 97 8 82 13| 1.2 1.1 2.3|138.2 -44.4 93.7 23.4 0.13| 9.1 1.2 5000 121 8 96 12| 1.0 1.2 2.1|138.2 -49.1 89.1 17.8 0.04| 8.1 0.3 6000 214 8 167 4| 1.1 1.0 2.1|147.9 -55.2 92.7 15.4 0.06| 7.8 0.5 Wrote GIF file: /home/apache/climate/data/raob//CYEV/skewt/CYEV.skewt.20250418.12.gif