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 SACO... Searching the city database file for: SACO ... Date:1200Z 18 APR 25 Station: SACO WMO ident: 87344 Latitude: -31.32 Longitude: -64.22 Elevation: 474.00 ------------------------------------------------------------------------------- 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 153 SFC 961 474 14.8 13.8 94 1.0 14.2 230 6 291.2 293.1 288.9 320.6 10.37 2 925 813 12.4 12.3 99 0.1 12.3 195 16 292.0 293.7 288.6 319.7 9.76 3 895 1090 11.6 11.6 100 0.0 11.6 199 15 293.9 295.7 289.2 321.5 9.63 4 864 1386 13.4 10.0 80 3.4 11.3 213 8 298.8 300.4 290.3 325.0 8.96 5 850 1524 13.0 11.8 92 1.2 12.3 220 3 299.8 301.6 291.7 329.9 10.28 6 821 1816 11.0 11.0 100 0.0 11.0 324 10 300.6 302.5 291.8 330.3 10.09 7 700 3136 4.2 4.0 99 0.2 4.1 295 17 307.1 308.5 291.5 329.4 7.30 8 696 3182 3.8 1.2 83 2.6 2.4 291 18 307.2 308.3 290.5 325.6 6.01 9 693 3217 3.6 3.6 100 0.0 3.6 288 18 307.4 308.7 291.5 329.2 7.17 10 669 3502 2.8 -0.5 79 3.3 1.1 282 22 309.6 310.6 290.7 326.7 5.52 11 668 3514 2.8 -0.0 82 2.8 1.3 282 22 309.7 310.8 291.0 327.5 5.74 12 562 4886 -6.7 -6.7 100 0.0 -6.7 275 31 314.2 315.0 290.9 327.3 4.12 13 551 5039 -8.7 -17.7 48 9.0 -11.6 275 34 313.6 313.9 288.5 319.3 1.73 14 542 5167 -7.9 -18.9 41 11.0 -11.4 275 37 316.0 316.3 289.2 321.3 1.58 15 539 5210 -7.9 -19.9 37 12.0 -11.6 275 38 316.5 316.8 289.2 321.5 1.46 16 516 5548 -9.1 -26.1 24 17.0 -13.6 275 43 319.1 319.2 289.4 322.1 0.88 17 500 5790 -11.1 -25.1 30 14.0 -14.8 275 38 319.5 319.7 289.6 323.0 1.00 18 439 6773 -19.7 -26.7 54 7.0 -21.2 270 32 320.7 320.9 290.0 324.2 0.98 19 410 7279 -21.5 -39.5 18 18.0 -24.2 270 29 324.7 324.8 290.5 325.9 0.30 20 400 7460 -23.3 -40.3 20 17.0 -25.6 275 31 324.7 324.8 290.5 325.8 0.28 21 374 7949 -26.5 -50.5 9 24.0 -28.7 269 38 326.8 326.8 290.9 327.2 0.10 22 300 9500 -39.9 -58.9 11 19.0 -40.7 270 41 329.1 329.1 291.5 329.3 0.05 23 251 10694 -49.5 -64.5 16 15.0 -49.8 247 44 332.1 332.1 292.3 332.2 0.03 24 250 10720 -49.3 -65.3 14 16.0 -49.7 250 47 332.8 332.8 292.5 332.9 0.02 25 205 12002 -54.3 -75.3 6 21.0 -54.6 260 74 344.3 344.3 295.4 344.4 0.01 26 200 12160 -53.9 -74.9 6 21.0 -54.2 260 74 347.4 347.4 296.1 347.4 0.01 27 193 12390 -53.3 -76.3 4 23.0 -53.7 259 75 351.9 351.9 297.1 352.0 0.01 28 176 12982 -56.0 -78.6 4 22.6 -56.3 255 78 356.9 356.9 298.1 356.9 0.00 29 150 13990 -60.7 -82.7 4 22.0 -60.9 260 73 365.5 365.5 299.8 365.5 0.00 30 132 14774 -65.9 -85.9 5 20.0 -66.0 252 70 369.8 369.8 300.5 369.8 0.00 31 109 15920 -70.7 -86.7 8 16.0 -70.8 255 65 381.6 381.6 302.5 381.6 0.00 32 100 16430 -71.1 -88.1 6 17.0 -71.2 255 59 390.4 390.4 303.8 390.4 0.00 33 70 18560 -67.9 -88.9 3 21.0 -68.1 240 34 439.1 439.1 309.8 439.1 0.00 34 61 19389 -66.7 -88.7 3 22.0 -66.9 236 20 459.4 459.4 311.7 459.4 0.00 35 56 19911 -61.7 -88.7 2 27.0 -62.1 264 23 482.2 482.2 313.6 482.2 0.00 36 50 20610 -63.1 -89.1 2 26.0 -63.5 250 16 494.8 494.8 314.6 494.8 0.00 37 46 21129 -58.9 -86.9 2 28.0 -59.6 254 16 516.9 516.9 316.1 516.9 0.00 38 42 21698 -61.5 -87.5 2 26.0 -62.1 232 14 524.0 524.0 316.5 524.1 0.00 39 40 22004 -56.5 -86.5 1 30.0 -57.6 212 13 544.0 544.0 317.8 544.0 0.01 40 38 22329 -57.9 -86.9 1 29.0 -58.9 244 13 548.4 548.4 318.0 548.5 0.01 41 30 23840 -52.7 -84.7 1 32.0 -54.7 270 15 601.0 601.0 320.6 601.0 0.01 42 26 24760 -54.3 -85.3 1 31.0 -56.2 262 18 621.5 621.5 321.6 621.6 0.01 43 20 26470 -46.5 -82.5 1 36.0 -51.1 270 20 693.8 693.9 324.3 694.0 0.02 44 14 28846 -44.1 -84.1 0 40.0 -50.9 292 24 776.5 776.5 326.7 776.7 0.02 45 11 30448 -47.9 -85.9 0 38.0 -53.9 275 29 818.1 818.1 327.7 818.3 0.02 46 10 31080 -45.3 -85.3 0 40.0 -52.9 300 35 850.5 850.5 328.4 850.7 0.03 47 9.0 31787 -43.1 -83.1 0 40.0 -52.2 884.9 885.0 329.1 885.4 0.04 TRP 109 15920 -70.7 -86.7 8 16.0 -70.8 255 65 381.6 381.6 302.5 381.6 0.00 WND 176 12982 -56.0 -78.6 4 22.6 -56.3 255 78 356.9 356.9 298.1 356.9 0.00 Sounding variables and indices 1000-500 mb thick: 5637.00 m Freezing level: 636.76 mb = 3918.59 m = 12856.12 ft Wetbulb zero: 650.72 mb = 3722.49 m = 12212.75 ft Precipitable water: 1.32 inches Sfc-500 mean rel hum: 84.51 % Est. max temperature: 24.58 C = 76.25 F Sfc-Lift cond lev (LCL): 946.93 mb = 604.96 m = 1984.75 ft T: 13.87 C 700-500 lapse rate: 5.76 C/km ThetaE index: 4.75 C Layer 700.0- 693.0 mb Conv cond level (CCL): 902.50 mb = 1019.77 m = 3345.66 ft Mean mixing ratio: 9.67 g/kg Conv temperature: 16.97 C = 62.54 F Cap Strength: 4.80 C Lifted Index: 4.47 C Risk: None Lifted Index @300 mb: 5.96 C Lifted Index @700 mb: 3.18 C Showalter Index: 0.19 C Risk: Thunderstorms probable Total Totals Index: 47.00 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 24.10 C Cross Totals Index: 22.90 C K Index: 35.70 Risk: > 80 % chance of thunderstorms Sweat Index: 185.60 Risk: None Energy Index: -1.40 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 32.16 J/kg Max Up Vert Vel: 8.02 m/s Conv Inhibition (B-): 43320.32 J/kg Cap Strength: 4.71 C Lift Cond Lev (LCL): 898.24 mb = 1059.50 m = 3476.02 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 306 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 ---------------------------------------------------------- 0 961 474 230 6 4.6 3.9 | 147 16 -8.9 13.7 1 946 610 210 9 4.5 7.8 | 153 20 -9.0 17.6 2 925 813 195 16 4.1 15.5 | 160 27 -9.4 25.3 3 914 914 190 15 2.6 14.8 | 156 27 -10.9 24.6 4 881 1219 205 15 6.3 13.6 | 163 24 -7.2 23.4 5 850 1524 220 3 1.9 2.3 | 136 17 -11.6 12.1 6 819 1829 330 10 5.0 -8.7 | 98 9 -8.5 1.2 7 790 2134 340 12 4.1 -11.3 | 81 10 -9.4 -1.4 8 761 2438 315 17 12.0 -12.0 | 34 3 -1.5 -2.2 9 734 2743 320 16 10.3 -12.3 | 53 4 -3.2 -2.4 10 707 3048 300 18 15.6 -9.0 | 248 2 2.1 0.8 11 700 3136 295 17 15.4 -7.2 | 216 3 1.9 2.6 12 681 3353 275 20 19.9 -1.7 | 218 10 6.4 8.1 13 655 3658 290 25 23.5 -8.6 | 263 10 10.0 1.3 14 630 3962 265 23 22.9 2.0 | 219 15 9.4 11.8 15 606 4267 275 14 13.9 -1.2 | 183 9 0.5 8.6 16 583 4572 275 25 24.9 -2.2 | 236 14 11.4 7.7 17 520 5486 275 44 43.8 -3.8 | 259 31 30.3 6.0 18 500 5790 275 38 37.9 -3.3 | 255 25 24.4 6.5 19 480 6096 270 35 35.0 -0.0 | 245 24 21.5 9.8 20 408 7315 270 29 29.0 -0.0 | 238 18 15.5 9.8 21 400 7460 275 31 30.9 -2.7 | 248 19 17.4 7.1 22 359 8230 265 42 41.8 3.7 | 245 31 28.3 13.5 23 344 8534 260 43 42.3 7.5 | 239 34 28.9 17.3 24 302 9449 270 42 42.0 -0.0 | 251 30 28.5 9.8 25 300 9500 270 41 41.0 -0.0 | 250 29 27.5 9.8 26 252 10668 245 42 38.1 17.7 | 222 37 24.6 27.6 27 250 10720 250 47 44.2 16.1 | 230 40 30.7 25.9 28 209 11887 260 74 72.9 12.8 | 249 64 59.4 22.7 29 200 12160 260 74 72.9 12.8 | 249 64 59.4 22.7 30 176 12982 255 78 75.3 20.2 | 244 69 61.8 30.0 31 173 13106 255 78 75.3 20.2 | 244 69 61.8 30.0 32 150 13990 260 73 71.9 12.7 | 249 63 58.4 22.5 33 128 14935 250 69 64.8 23.6 | 237 61 51.3 33.4 34 116 15545 270 69 69.0 -0.0 | 260 56 55.5 9.8 35 109 15920 255 65 62.8 16.8 | 242 56 49.3 26.7 36 100 16430 255 59 57.0 15.3 | 240 50 43.5 25.1 37 95 16764 255 59 57.0 15.3 | 240 50 43.5 25.1 38 85 17374 265 61 60.8 5.3 | 252 50 47.3 15.1 39 77 17983 270 51 51.0 -0.0 | 255 39 37.5 9.8 40 70 18560 240 34 29.4 17.0 | 211 31 16.0 26.8 41 70 18593 240 38 32.9 19.0 | 214 35 19.4 28.8 42 60 19507 235 18 14.7 10.3 | 184 20 1.2 20.2 43 57 19812 250 27 25.4 9.2 | 212 22 11.9 19.1 44 54 20117 290 15 14.1 -5.1 | 187 5 0.6 4.7 45 52 20422 285 20 19.3 -5.2 | 231 7 5.8 4.7 46 50 20610 250 16 15.0 5.5 | 186 15 1.5 15.3 47 49 20726 255 19 18.4 4.9 | 198 16 4.9 14.7 48 47 21031 245 18 16.3 7.6 | 189 18 2.8 17.4 49 45 21336 270 12 12.0 -0.0 | 171 10 -1.5 9.8 50 42 21641 240 14 12.1 7.0 | 175 17 -1.4 16.8 51 40 21946 205 12 5.1 10.9 | 158 22 -8.4 20.7 52 39 22250 235 17 13.9 9.8 | 181 20 0.4 19.6 53 37 22555 265 4 4.0 0.3 | 137 14 -9.5 10.2 54 35 22860 335 10 4.2 -9.1 | 95 9 -9.3 0.8 55 33 23165 315 24 17.0 -17.0 | 334 8 3.5 -7.1 56 32 23470 305 23 18.8 -13.2 | 302 6 5.3 -3.4 57 30 23774 275 22 21.9 -1.9 | 227 12 8.4 7.9 58 30 23840 270 15 15.0 -0.0 | 189 10 1.5 9.8 59 29 24079 285 17 16.4 -4.4 | 208 6 2.9 5.4 60 28 24384 265 14 13.9 1.2 | 182 11 0.5 11.1 61 26 24689 265 18 17.9 1.6 | 201 12 4.4 11.4 62 25 24994 255 17 16.4 4.4 | 192 15 2.9 14.2 63 24 25298 270 14 14.0 -0.0 | 183 10 0.5 9.8 64 23 25603 295 14 12.7 -5.9 | 168 4 -0.8 3.9 65 22 25908 265 14 13.9 1.2 | 182 11 0.5 11.1 66 20 26470 270 20 20.0 -0.0 | 213 12 6.5 9.8 67 20 26518 320 12 7.7 -9.2 | 96 6 -5.8 0.6 68 19 26822 270 20 20.0 -0.0 | 213 12 6.5 9.8 69 18 27127 260 18 17.7 3.1 | 198 14 4.2 13.0 70 17 27432 310 20 15.3 -12.9 | 329 4 1.8 -3.0 71 17 27737 295 20 18.1 -8.5 | 253 5 4.6 1.4 72 15 28346 275 20 19.9 -1.7 | 218 10 6.4 8.1 73 14 28651 305 19 15.6 -10.9 | 297 2 2.1 -1.1 74 14 28956 285 27 26.1 -7.0 | 257 13 12.6 2.8 75 13 29261 300 27 23.4 -13.5 | 290 11 9.9 -3.7 76 12 29870 285 26 25.1 -6.7 | 255 12 11.6 3.1 77 11 30175 265 26 25.9 2.3 | 226 17 12.4 12.1 78 10 31080 300 35 30.3 -17.5 | 295 18 16.8 -7.7 Wind Parameters Mean winds (0-6000m): 276.1 at 22.3 knts Storm direction: 306.1 at 16.7 knts Shear (0-3000m) pos: 4.2 neg: 3.9 tot: 8.1 10-3/s Storm rel Dir Shear (0-3000m): 88.1 deg Storm rel helicity (0-3000m) pos: 46.1 neg: -73.9 tot: -27.8 m^2/s^2 ave: -9.3 10^-3 m/s^2 rel: -0.25 Storm rel vorticity (0-3000m) horiz: 11.7 stream: -2.9 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 0.47 Bulk Shear: 68.08 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 ------------------------------------------------------------------------------- 500 200 12 156 23| 0.0 11.1 11.1| 22.7 -5.7 17.0 33.9 0.28| 12.6 3.5 1000 201 12 157 23| 5.5 5.6 11.1| 36.4 -40.3 -3.9 -3.9 -0.05| 13.1 -0.6 1500 215 11 158 20| 8.4 3.7 12.1| 38.7 -62.5 -23.8 -15.9 -0.23| 14.1 -3.3 2000 252 11 169 14| 6.3 2.7 9.0| 38.7 -71.9 -33.2 -16.6 -0.30| 12.9 -3.9 2500 280 12 171 8| 5.1 2.8 7.9| 39.3 -72.6 -33.3 -13.3 -0.31| 11.5 -3.6 3000 283 14 178 7| 4.2 3.9 8.1| 46.1 -73.9 -27.8 -9.3 -0.25| 11.7 -2.9 4000 280 15 194 7| 3.6 3.6 7.2| 73.6-120.4 -46.9 -11.7 -0.22| 12.7 -2.7 5000 278 19 217 9| 2.9 4.5 7.4|124.4-120.4 3.9 0.8 -0.09| 12.5 -1.1 6000 276 22 229 11| 2.4 3.2 5.6|124.4-164.8 -40.5 -6.7 -0.13| 11.4 -1.5 Wrote GIF file: /home/apache/climate/data/raob//SACO/skewt/SACO.skewt.20250418.12.gif