UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025041712.upa.cvt Date: 1200Z 17 APR 25 Searching for CYRB... Searching the city database file for: CYRB ... Date:1200Z 17 APR 25 Station: CYRB WMO ident: 71924 Latitude: 74.70 Longitude: -94.97 Elevation: 46.00 ------------------------------------------------------------------------------- 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 1025 46 -20.1 -22.9 78 2.8 -20.5 120 10 251.3 251.4 251.1 252.9 0.59 1 1007 177 -20.7 -23.2 80 2.5 -21.0 163 11 251.9 252.0 251.7 253.5 0.59 2 1000 229 -19.9 -23.5 73 3.6 -20.4 180 11 253.2 253.3 252.8 254.8 0.57 3 985 342 -15.7 -23.7 50 8.0 -16.9 204 13 258.6 258.7 257.2 260.2 0.57 4 977 404 -15.5 -24.5 46 9.0 -16.8 210 13 259.4 259.5 257.8 260.9 0.54 5 929 783 -15.7 -20.1 69 4.4 -16.4 234 16 262.9 263.1 261.2 265.2 0.83 6 925 816 -15.9 -20.9 65 5.0 -16.7 235 16 263.1 263.2 261.2 265.2 0.78 7 901 1014 -17.1 -19.7 80 2.6 -17.6 238 17 263.8 263.9 261.9 266.3 0.89 8 896 1055 -17.3 -21.5 70 4.2 -18.0 240 17 264.0 264.1 261.9 266.2 0.76 9 879 1199 -17.7 -20.1 81 2.4 -18.1 244 17 265.0 265.2 262.9 267.5 0.88 10 850 1449 -19.1 -21.9 78 2.8 -19.6 245 17 266.1 266.3 263.4 268.3 0.78 11 702 2850 -27.5 -28.7 89 1.2 -27.6 261 18 271.8 271.9 266.9 273.3 0.51 12 700 2871 -27.7 -29.0 89 1.3 -27.8 260 18 271.8 271.9 266.9 273.3 0.50 13 626 3669 -30.9 -33.0 82 2.1 -31.1 280 24 277.0 277.0 270.0 278.1 0.38 14 591 4075 -34.1 -35.0 92 0.9 -34.2 280 27 277.9 277.9 270.5 278.9 0.33 15 574 4279 -35.3 -36.7 87 1.4 -35.4 280 29 278.8 278.8 270.9 279.7 0.29 16 568 4352 -35.9 -39.4 70 3.5 -36.1 281 29 278.9 278.9 270.9 279.6 0.22 17 539 4715 -37.7 -39.5 83 1.8 -37.8 287 30 281.0 281.0 272.1 281.7 0.23 18 536 4754 -38.1 -42.5 63 4.4 -38.3 288 30 280.9 281.0 272.0 281.5 0.17 19 528 4857 -38.5 -40.9 78 2.4 -38.7 290 30 281.7 281.7 272.5 282.3 0.20 20 513 5055 -39.5 -44.4 60 4.9 -39.7 290 32 282.8 282.8 273.1 283.3 0.14 21 500 5230 -40.7 -43.8 72 3.1 -40.8 290 34 283.4 283.4 273.4 283.9 0.16 22 477 5549 -42.3 -44.1 82 1.8 -42.4 292 37 285.3 285.3 274.5 285.8 0.16 23 412 6526 -48.7 -53.0 61 4.3 -48.8 298 44 289.2 289.3 276.4 289.5 0.07 24 400 6720 -49.7 -53.1 67 3.4 -49.8 295 45 290.4 290.4 277.0 290.6 0.07 25 399 6736 -49.7 -53.0 68 3.3 -49.8 295 45 290.6 290.6 277.1 290.8 0.07 26 394 6819 -49.9 -56.9 44 7.0 -50.0 295 44 291.4 291.4 277.4 291.6 0.04 27 391 6869 -50.3 -55.0 57 4.7 -50.4 295 44 291.5 291.5 277.5 291.7 0.06 28 372 7192 -51.9 -57.9 48 6.0 -52.0 295 42 293.6 293.6 278.5 293.7 0.04 29 365 7315 -51.9 -60.9 33 9.0 -52.1 296 41 295.2 295.2 279.2 295.3 0.03 30 358 7440 -52.1 -61.1 33 9.0 -52.2 298 41 296.5 296.5 279.8 296.6 0.03 31 353 7531 -52.1 -56.1 62 4.0 -52.2 299 40 297.7 297.7 280.4 297.9 0.05 32 347 7642 -52.5 -65.5 19 13.0 -52.7 300 40 298.7 298.7 280.8 298.7 0.02 33 304 8503 -48.7 -76.7 2 28.0 -49.1 286 26 315.5 315.5 287.3 315.5 0.00 34 300 8590 -48.5 -77.5 2 29.0 -48.9 285 25 317.0 317.0 287.8 317.0 0.00 35 280 9042 -48.5 -78.5 2 30.0 -48.9 289 23 323.3 323.3 289.8 323.3 0.00 36 258 9581 -45.7 -81.7 1 36.0 -46.3 286 22 335.1 335.1 293.1 335.1 0.00 37 250 9790 -45.3 -81.3 1 36.0 -46.0 290 17 338.7 338.7 294.0 338.7 0.00 38 222 10587 -43.7 -82.7 1 39.0 -44.6 286 14 352.9 352.9 297.3 352.9 0.00 39 200 11290 -43.9 -82.9 1 39.0 -44.8 275 12 363.3 363.3 299.3 363.3 0.00 40 184 11850 -43.7 -83.7 0 40.0 -44.7 271 16 372.3 372.3 301.0 372.4 0.00 TRP 372 7192 -51.9 -57.9 48 6.0 -52.0 295 42 293.6 293.6 278.5 293.7 0.04 WND Sounding variables and indices 1000-500 mb thick: 5001.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.12 inches Sfc-500 mean rel hum: 78.45 % Est. max temperature: -6.07 C = 21.07 F Sfc-Lift cond lev (LCL): 978.70 mb = 390.39 m = 1280.80 ft T: -15.54 C 700-500 lapse rate: 5.51 C/km ThetaE index: 0.11 C Layer 896.0- 879.0 mb Conv cond level (CCL): 729.46 mb = 2569.35 m = 8429.53 ft Mean mixing ratio: 0.64 g/kg Conv temperature: -0.54 C = 31.03 F Cap Strength: 19.07 C Lifted Index: 19.40 C Risk: None Lifted Index @300 mb: 40.54 C Lifted Index @700 mb: 11.30 C Showalter Index: 12.51 C Risk: None Total Totals Index: 40.40 C Risk: None Vertical Totals Index: 21.60 C Cross Totals Index: 18.80 C K Index: -1.60 Risk: None Sweat Index: 181.39 Risk: None Energy Index: 3.27 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 53.23 J/kg Max Up Vert Vel: 10.32 m/s Conv Inhibition (B-): 13435.81 J/kg Cap Strength: 19.15 C Lift Cond Lev (LCL): 889.30 mb = 1111.49 m = 3646.58 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 303 at 17 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 1025 46 120 10 -8.7 5.0 | 122 27 -23.3 14.5 1 1000 229 180 11 0.0 11.0 | 144 25 -14.6 20.5 2 990 305 200 13 4.4 12.2 | 155 24 -10.2 21.7 3 951 610 230 14 10.7 9.0 | 168 19 -3.9 18.5 4 925 816 235 16 13.1 9.2 | 175 19 -1.5 18.7 5 913 914 235 17 13.9 9.8 | 178 19 -0.7 19.3 6 876 1219 245 17 15.4 7.2 | 183 17 0.8 16.7 7 850 1449 245 17 15.4 7.2 | 183 17 0.8 16.7 8 807 1829 255 17 16.4 4.4 | 187 14 1.8 13.9 9 774 2134 255 18 17.4 4.7 | 191 14 2.7 14.2 10 743 2438 260 19 18.7 3.3 | 198 13 4.1 12.8 11 712 2743 265 16 15.9 1.4 | 187 11 1.3 10.9 12 700 2871 260 18 17.7 3.1 | 194 13 3.1 12.6 13 626 3658 280 24 23.6 -4.2 | 239 10 9.0 5.3 14 574 4267 280 29 28.6 -5.0 | 252 15 13.9 4.5 15 526 4877 290 30 28.2 -10.3 | 273 14 13.5 -0.7 16 500 5230 290 34 31.9 -11.6 | 277 17 17.3 -2.1 17 439 6096 295 41 37.2 -17.3 | 289 24 22.5 -7.8 18 401 6706 300 45 39.0 -22.5 | 298 28 24.3 -13.0 19 400 6720 295 45 40.8 -19.0 | 290 28 26.1 -9.5 20 372 7192 295 42 38.1 -17.7 | 289 25 23.4 -8.2 21 348 7620 300 40 34.6 -20.0 | 298 23 20.0 -10.5 22 300 8590 285 25 24.1 -6.5 | 252 10 9.5 3.0 23 276 9144 290 23 21.6 -7.9 | 257 7 7.0 1.7 24 263 9449 295 22 19.9 -9.3 | 268 5 5.3 0.2 25 251 9754 275 21 20.9 -1.8 | 219 10 6.3 7.7 26 250 9790 290 17 16.0 -5.8 | 200 4 1.3 3.7 27 240 10058 290 17 16.0 -5.8 | 200 4 1.3 3.7 28 219 10668 285 14 13.5 -3.6 | 169 6 -1.1 5.9 29 210 10973 275 10 10.0 -0.9 | 152 10 -4.7 8.6 30 200 11278 280 14 13.8 -2.4 | 173 7 -0.9 7.1 31 200 11290 275 12 12.0 -1.0 | 162 9 -2.7 8.5 32 178 11887 270 17 17.0 -0.0 | 194 10 2.4 9.5 Wind Parameters Mean winds (0-6000m): 273.0 at 23.3 knts Storm direction: 303.0 at 17.5 knts Shear (0-3000m) pos: 4.8 neg: 0.0 tot: 4.8 10-3/s Storm rel Dir Shear (0-3000m): 80.1 deg Storm rel helicity (0-3000m) pos: 179.7 neg: -7.0 tot: 172.7 m^2/s^2 ave: 57.6 10^-3 m/s^2 rel: 0.71 Storm rel vorticity (0-3000m) horiz: 7.1 stream: 5.1 10^-3/s Energy-Hel index: 0.05 Bulk Rich Number: 0.67 Bulk Shear: 79.88 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 ------------------------------------------------------------------------------- 500 192 12 150 25| 19.4 0.0 19.4|126.7 0.0 126.7 253.4 0.90| 21.7 19.6 1000 217 14 163 21| 12.1 0.0 12.1|151.1 0.0 151.1 151.1 0.89| 13.8 12.3 1500 228 15 170 20| 8.4 0.0 8.4|156.4 0.0 156.4 104.3 0.85| 10.1 8.6 2000 236 15 174 18| 6.6 0.0 6.6|162.5 0.0 162.5 81.2 0.83| 8.3 6.8 2500 241 16 178 17| 5.5 0.0 5.5|169.2 -2.3 167.0 66.8 0.78| 7.3 5.7 3000 245 16 181 16| 4.8 0.0 4.8|179.7 -7.0 172.7 57.6 0.71| 7.1 5.1 4000 256 18 192 14| 4.7 0.0 4.7|207.0 -7.0 199.9 50.0 0.74| 6.7 5.0 5000 265 20 207 13| 4.3 0.0 4.3|231.3 -7.0 224.3 44.9 0.74| 6.3 4.6 6000 273 23 226 12| 4.3 0.0 4.3|255.5 -7.0 248.5 41.4 0.71| 6.0 4.3 Wrote GIF file: /home/apache/climate/data/raob//CYRB/skewt/CYRB.skewt.20250417.12.gif