UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025122912.upa.cvt Date: 1200Z 29 DEC 25 Searching for SACO... Searching the city database file for: SACO ... Date:1200Z 29 DEC 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 107 SFC 957 474 22.8 18.2 75 4.6 19.6 130 2 299.7 302.2 294.4 340.2 13.87 2 925 791 23.8 13.8 54 10.0 17.2 195 8 303.6 305.6 293.3 335.7 10.78 3 887 1156 20.4 17.3 82 3.1 18.2 145 6 303.8 306.4 295.7 345.8 14.15 4 850 1524 18.0 13.0 73 5.0 14.7 60 6 305.0 307.1 293.9 338.3 11.14 5 839 1635 17.0 11.0 68 6.0 13.2 60 6 305.1 306.9 293.0 334.7 9.87 6 811 1924 16.0 1.0 36 15.0 7.9 60 5 307.0 308.0 289.5 322.6 5.07 7 806 1977 15.2 9.2 67 6.0 11.4 60 5 306.7 308.4 292.9 334.2 9.10 8 780 2254 14.4 -9.6 18 24.0 3.8 69 5 308.7 309.2 287.5 316.3 2.36 9 768 2385 13.4 -8.6 21 22.0 3.5 80 7 309.0 309.5 287.9 317.3 2.60 10 764 2429 13.0 1.0 44 12.0 6.5 84 8 309.1 310.1 290.5 325.7 5.39 11 754 2539 12.6 -9.4 21 22.0 2.9 83 8 309.8 310.3 288.0 317.7 2.48 12 747 2618 12.0 -6.0 28 18.0 3.5 81 8 310.0 310.6 288.8 320.3 3.27 13 745 2640 11.4 4.4 62 7.0 7.3 81 8 309.5 310.9 292.0 331.2 7.05 14 700 3158 8.4 -3.6 43 12.0 2.4 70 9 311.8 312.6 290.3 325.0 4.19 15 682 3373 7.0 -13.0 22 20.0 -1.1 67 10 312.6 312.9 288.5 319.3 2.06 16 645 3828 3.2 -2.8 65 6.0 0.2 62 11 313.3 314.2 291.3 328.5 4.83 17 583 4638 -3.3 -5.2 87 1.9 -4.2 60 12 314.9 315.7 291.5 329.1 4.46 18 527 5431 -7.9 -7.9 100 0.0 -7.9 319 11 318.6 319.4 292.2 331.6 4.01 19 500 5840 -8.7 -9.5 94 0.8 -9.1 255 18 322.4 323.2 293.0 334.7 3.72 20 462 6448 -12.7 -12.7 100 0.0 -12.7 263 27 324.8 325.4 293.2 335.3 3.12 21 448 6683 -12.7 -17.4 68 4.7 -14.3 265 31 327.7 328.1 293.1 335.2 2.18 22 422 7137 -14.7 -18.7 72 4.0 -16.0 278 31 330.8 331.2 293.8 338.0 2.07 23 400 7540 -17.9 -21.3 75 3.4 -18.9 290 31 331.7 332.1 293.8 337.9 1.75 24 388 7767 -19.7 -21.1 89 1.4 -20.1 293 33 332.3 332.6 294.0 338.7 1.83 25 352 8484 -24.3 -31.3 52 7.0 -25.7 281 40 335.4 335.6 293.9 338.4 0.79 26 339 8757 -26.7 -32.7 57 6.0 -27.8 277 44 335.8 336.0 294.0 338.5 0.72 27 321 9149 -28.7 -44.7 20 16.0 -30.6 281 49 338.3 338.4 294.1 339.2 0.22 28 302 9583 -32.1 -42.1 36 10.0 -33.3 289 54 339.5 339.6 294.5 340.7 0.31 29 300 9630 -32.5 -42.5 36 10.0 -33.6 290 54 339.6 339.6 294.5 340.8 0.30 30 275 10238 -36.3 -52.3 18 16.0 -37.5 299 64 342.6 342.7 295.1 343.1 0.11 31 250 10890 -41.9 -58.9 14 17.0 -42.7 305 68 343.8 343.8 295.3 344.0 0.05 32 225 11594 -47.9 -69.9 6 22.0 -48.4 305 71 345.1 345.1 295.6 345.2 0.01 33 202 12296 -54.1 -58.2 61 4.1 -54.2 305 74 346.1 346.1 295.8 346.4 0.07 34 200 12360 -54.5 -58.8 59 4.3 -54.6 305 74 346.5 346.5 295.9 346.8 0.07 35 197 12457 -55.1 -61.4 45 6.3 -55.2 305 76 347.0 347.0 296.0 347.2 0.05 36 196 12490 -55.3 -62.3 41 7.0 -55.5 305 76 347.2 347.2 296.1 347.4 0.04 37 193 12588 -54.7 -75.7 6 21.0 -55.0 305 76 349.7 349.7 296.5 349.7 0.01 38 190 12689 -55.1 -71.1 12 16.0 -55.4 305 76 350.6 350.6 296.8 350.7 0.01 39 163 13662 -58.5 -80.5 4 22.0 -58.7 296 55 360.6 360.6 298.8 360.6 0.00 40 158 13860 -55.7 -82.7 2 27.0 -56.0 301 48 368.6 368.6 300.3 368.6 0.00 41 150 14190 -57.9 -82.9 3 25.0 -58.2 270 34 370.3 370.3 300.6 370.3 0.00 42 114 15878 -68.3 -87.3 5 19.0 -68.4 307 15 381.2 381.2 302.5 381.2 0.00 43 100 16660 -70.1 -89.1 5 19.0 -70.2 100 8 392.3 392.3 304.1 392.3 0.00 44 78 18110 -76.7 -90.7 9 14.0 -76.7 145 14 407.5 407.5 306.2 407.5 0.00 45 70 18730 -77.7 -89.7 13 12.0 -77.7 115 16 418.2 418.2 307.5 418.2 0.00 46 69 18813 -77.9 -89.9 13 12.0 -77.9 116 16 419.5 419.5 307.6 419.5 0.00 47 59 19711 -77.7 -90.7 11 13.0 -77.7 106 14 439.1 439.1 309.8 439.1 0.00 48 55 20119 -72.7 -89.7 6 17.0 -72.8 124 17 459.5 459.5 311.7 459.5 0.00 49 53 20337 -73.5 -90.5 6 17.0 -73.6 103 16 462.5 462.5 312.0 462.5 0.00 50 50 20680 -71.3 -91.3 4 20.0 -71.4 90 14 475.5 475.5 313.1 475.5 0.00 51 46 21175 -68.9 -91.9 2 23.0 -69.1 67 12 492.7 492.7 314.4 492.7 0.00 52 45 21308 -64.9 -90.9 2 26.0 -65.3 47 11 505.6 505.6 315.4 505.6 0.00 53 42 21729 -63.9 -89.9 2 26.0 -64.3 103 12 518.1 518.1 316.2 518.1 0.00 54 39 22180 -66.1 -90.1 2 24.0 -66.4 117 18 523.6 523.6 316.5 523.7 0.00 55 30 23800 -58.3 -87.3 1 29.0 -59.4 75 24 585.7 585.7 319.9 585.7 0.01 56 23 25497 -52.1 -84.1 1 32.0 -54.7 72 23 650.2 650.2 322.7 650.3 0.01 57 20 26400 -53.3 -85.3 1 32.0 -55.9 105 25 673.0 673.0 323.5 673.1 0.01 58 17 27458 -48.7 -83.7 1 35.0 -53.0 102 26 719.8 719.8 325.1 720.0 0.02 59 13 29228 -46.9 -82.9 1 36.0 -52.8 96 23 783.4 783.4 326.8 783.7 0.03 60 11 30349 -41.1 -80.1 1 39.0 -50.3 101 27 842.8 842.9 328.2 843.4 0.06 TRP 78 18110 -76.7 -90.7 9 14.0 -76.7 145 14 407.5 407.5 306.2 407.5 0.00 WND 197 12457 -55.1 -61.4 45 6.3 -55.2 305 76 347.0 347.0 296.0 347.2 0.05 Sounding variables and indices 1000-500 mb thick: 5733.00 m Freezing level: 614.48 mb = 4227.16 m = 13868.45 ft Wetbulb zero: 687.60 mb = 3305.37 m = 10844.25 ft Precipitable water: 1.35 inches Sfc-500 mean rel hum: 65.76 % Est. max temperature: 29.78 C = 85.60 F Sfc-Lift cond lev (LCL): 894.62 mb = 1081.96 m = 3549.70 ft T: 21.09 C 700-500 lapse rate: 6.38 C/km ThetaE index: 23.22 C Layer 850.0- 806.0 mb Conv cond level (CCL): 766.19 mb = 2404.62 m = 7889.08 ft Mean mixing ratio: 12.56 g/kg Conv temperature: 32.02 C = 89.64 F Cap Strength: 2.45 C Lifted Index: -2.16 C Risk: Severe thunderstorms possible Lifted Index @300 mb: 1.23 C Lifted Index @700 mb: 0.53 C Showalter Index: -1.22 C Risk: Thunderstorms probable Total Totals Index: 48.40 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 26.70 C Cross Totals Index: 21.70 C K Index: 27.70 Risk: 40-60 % chance of thunderstorms Sweat Index: 186.00 Risk: None Energy Index: -0.79 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 335.11 J/kg Max Up Vert Vel: 25.89 m/s Conv Inhibition (B-): 113.34 J/kg Cap Strength: 2.45 C Lift Cond Lev (LCL): 831.20 mb = 1714.79 m = 5625.87 ft Lev Free Conv (LFC): 676.20 mb = 3442.58 m = 11294.43 ft Equ Level (EL): 356.20 mb = 8396.44 m = 27547.05 ft B at Equ Level: 334.35 J/kg Max Parcel Lev (MPL): 206.20 mb = 12162.42 m = 39902.48 ft Wind level data Storm motion: 59 at 8 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 ---------------------------------------------------------- 0 957 474 130 2 -1.5 1.3 | 224 8 5.3 5.4 1 943 610 215 2 1.1 1.6 | 234 10 8.0 5.8 2 925 791 195 8 2.1 7.7 | 217 15 8.9 11.9 3 912 914 200 6 2.1 5.6 | 222 13 8.9 9.8 4 850 1524 60 6 -5.2 -3.0 | 236 2 1.7 1.1 5 791 2134 60 4 -3.5 -2.0 | 238 4 3.4 2.1 6 762 2438 85 8 -8.0 -0.7 | 162 4 -1.1 3.4 7 700 3158 70 9 -8.5 -3.1 | 124 2 -1.6 1.1 8 633 3962 60 12 -10.4 -6.0 | 62 4 -3.5 -1.9 9 609 4267 65 14 -12.7 -5.9 | 73 6 -5.8 -1.8 10 586 4572 65 12 -10.9 -5.1 | 77 4 -4.0 -0.9 11 564 4877 30 12 -6.0 -10.4 | 352 6 0.9 -6.2 12 523 5486 310 11 8.4 -7.1 | 281 16 15.3 -2.9 13 503 5791 265 17 16.9 1.5 | 257 24 23.8 5.6 14 500 5840 255 18 17.4 4.7 | 250 26 24.3 8.8 15 483 6096 260 21 20.7 3.6 | 254 29 27.5 7.8 16 446 6706 265 31 30.9 2.7 | 260 38 37.7 6.8 17 400 7540 290 31 29.1 -10.6 | 280 37 36.0 -6.5 18 396 7620 295 32 29.0 -13.5 | 285 37 35.9 -9.4 19 364 8230 285 36 34.8 -9.3 | 277 42 41.6 -5.2 20 334 8839 275 46 45.8 -4.0 | 270 53 52.7 0.1 21 300 9630 290 54 50.7 -18.5 | 284 59 57.6 -14.3 22 258 10668 305 71 58.2 -40.7 | 299 75 65.0 -36.6 23 250 10890 305 68 55.7 -39.0 | 299 72 62.6 -34.9 24 200 12360 305 74 60.6 -42.4 | 300 78 67.5 -38.3 25 197 12457 305 76 62.3 -43.6 | 300 80 69.1 -39.4 26 187 12802 305 76 62.3 -43.6 | 300 80 69.1 -39.4 27 170 13411 290 63 59.2 -21.5 | 285 68 66.1 -17.4 28 154 14021 305 43 35.2 -24.7 | 296 47 42.1 -20.5 29 150 14190 270 34 34.0 -0.0 | 264 41 40.9 4.1 30 147 14326 270 34 34.0 -0.0 | 264 41 40.9 4.1 31 126 15240 260 12 11.8 2.1 | 252 20 18.7 6.2 32 120 15545 305 13 10.6 -7.5 | 281 18 17.5 -3.3 33 114 15850 305 15 12.3 -8.6 | 283 20 19.2 -4.5 34 100 16660 100 8 -7.9 1.4 | 170 6 -1.0 5.5 35 93 17069 100 8 -7.9 1.4 | 170 6 -1.0 5.5 36 88 17374 140 16 -10.3 12.3 | 168 17 -3.4 16.4 37 84 17678 140 22 -14.1 16.9 | 161 22 -7.3 21.0 38 78 18110 145 14 -8.0 11.5 | 176 16 -1.2 15.6 39 76 18288 150 14 -7.0 12.1 | 180 16 -0.1 16.3 40 72 18593 120 16 -13.9 8.0 | 150 14 -7.0 12.1 41 70 18730 115 16 -14.5 6.8 | 145 13 -7.6 10.9 42 65 19202 120 17 -14.7 8.5 | 148 15 -7.9 12.6 43 61 19507 95 12 -12.0 1.0 | 136 7 -5.1 5.2 44 55 20117 125 17 -13.9 9.8 | 153 16 -7.1 13.9 45 52 20422 95 16 -15.9 1.4 | 121 11 -9.1 5.5 46 50 20680 90 14 -14.0 0.0 | 120 8 -7.1 4.1 47 50 20726 60 22 -19.1 -11.0 | 61 14 -12.2 -6.9 48 47 21031 90 13 -13.0 0.0 | 124 7 -6.1 4.1 49 45 21336 45 11 -7.8 -7.8 | 14 4 -0.9 -3.6 50 43 21641 105 11 -10.6 2.8 | 152 8 -3.8 7.0 51 41 21946 100 15 -14.8 2.6 | 130 10 -7.9 6.7 52 37 22555 140 23 -14.8 17.6 | 160 23 -7.9 21.8 53 35 22860 115 30 -27.2 12.7 | 130 26 -20.3 16.8 54 33 23165 80 25 -24.6 -4.3 | 89 18 -17.8 -0.2 55 30 23774 90 19 -19.0 0.0 | 109 13 -12.1 4.1 56 30 23800 75 24 -23.2 -6.2 | 83 16 -16.3 -2.1 57 29 24079 75 24 -23.2 -6.2 | 83 16 -16.3 -2.1 58 27 24384 100 14 -13.8 2.4 | 134 10 -6.9 6.6 59 26 24689 90 13 -13.0 0.0 | 124 7 -6.1 4.1 60 25 24994 110 17 -16.0 5.8 | 138 13 -9.1 10.0 61 23 25603 65 24 -21.8 -10.1 | 68 16 -14.9 -6.0 62 22 25908 65 16 -14.5 -6.8 | 71 8 -7.6 -2.6 63 20 26400 105 25 -24.1 6.5 | 122 20 -17.3 10.6 64 19 26518 130 16 -12.3 10.3 | 160 15 -5.4 14.4 65 18 26822 110 27 -25.4 9.2 | 126 23 -18.5 13.4 66 16 27127 95 25 -24.9 2.2 | 109 19 -18.0 6.3 67 15 27432 115 21 -19.0 8.9 | 137 18 -12.2 13.0 68 14 27737 105 21 -20.3 5.4 | 126 16 -13.4 9.6 69 12 28346 80 26 -25.6 -4.5 | 89 19 -18.7 -0.4 70 11 28651 110 28 -26.3 9.6 | 125 24 -19.4 13.7 71 10 28956 100 30 -29.5 5.2 | 112 25 -22.7 9.4 72 8 29566 95 46 -45.8 4.0 | 102 40 -39.0 8.2 73 8 29870 90 42 -42.0 0.0 | 97 35 -35.1 4.1 74 7 30175 65 39 -35.3 -16.5 | 67 31 -28.5 -12.3 Wind Parameters Mean winds (0-6000m): 28.9 at 10.7 knts Storm direction: 58.9 at 8.0 knts Shear (0-3000m) pos: 1.1 neg: 2.2 tot: 3.3 10-3/s Storm rel Dir Shear (0-3000m): -134.1 deg Storm rel helicity (0-3000m) pos: 5.3 neg: -28.7 tot: -23.4 m^2/s^2 ave: -7.8 10^-3 m/s^2 rel: -0.34 Storm rel vorticity (0-3000m) horiz: 5.7 stream: -1.9 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 10.62 Bulk Shear: 31.54 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 ------------------------------------------------------------------------------- 500 195 5 223 12| 5.3 0.0 5.3| 3.6 -11.6 -8.0 -16.0 -0.21| 10.4 -2.2 1000 170 5 212 11| 2.7 5.2 7.9| 4.5 -23.8 -19.3 -19.3 -0.25| 11.4 -2.9 1500 119 5 198 7| 1.8 3.2 5.0| 5.3 -23.8 -18.5 -12.3 -0.18| 8.4 -1.5 2000 96 5 197 5| 1.7 2.4 4.1| 5.3 -26.9 -21.6 -10.8 -0.28| 7.6 -2.1 2500 89 6 192 4| 1.3 2.3 3.6| 5.3 -27.7 -22.4 -9.0 -0.30| 6.4 -2.0 3000 82 7 186 3| 1.1 2.2 3.3| 5.3 -28.7 -23.4 -7.8 -0.34| 5.7 -1.9 4000 73 8 154 2| 0.9 1.9 2.9| 6.8 -29.9 -23.1 -5.8 -0.30| 5.0 -1.5 5000 60 9 70 1| 0.8 2.1 2.8| 6.9 -75.5 -68.6 -13.7 -0.50| 6.5 -3.2 6000 29 11 342 5| 0.7 2.0 2.7| 35.4-141.7-106.2 -17.7 -0.44| 7.6 -3.4 Wrote GIF file: /home/apache/climate/data/raob//SACO/skewt/SACO.skewt.20251229.12.gif