THESE IMAGES ARE FROM THE RPM MODEL
PRECIPATABLE WATER INDEX OVER 1.5 = FLASH FLOODING CONCERNS WITH STORMS
LIFTED INDEX VALUES OVER -6
= STRONG INSTABILITY
The more negative the LI the more unstable the troposphere and the more buoyant the acceleration will be for rising parcels of air from the PBL.
CAPE: 3000J/KG OVER MASSACHUSETTS
=STRONG INSTABILITY
= TOWERING STORMS
FAVORS LARGE HAIL/WINDS OVER 70MPH
NAM TEXT SOUNDINGS
PHILADELPHIA MODEL:
Station ID: KPHL Lat: 39.86 Long: -75.23
NAM Model Run: 12Z MAY 28, 2012
Forecast Hours: 0hr 6hr 12hr 18hr 24hr 30hr 36hr 42hr 48hr 54hr 60hr 66hr 72hr 78hr 84hr
Sfc Prs(mb): 1015.7 1014.4 1012.3 1011.9 1012.2 1010.0 1008.1 1007.4 1008.2 1007.4 1006.6 1006.6 1009.0 1010.3 1012.1
Mean SLP (mb): 1016.5 1015.1 1013.0 1012.6 1012.9 1010.7 1008.8 1008.1 1008.9 1008.1 1007.3 1007.3 1009.8 1011.1 1012.8
2m agl Tmp (F): 70.8 86.4 82.1 72.3 75.7 83.0 76.2 71.1 74.5 84.9 77.4 67.7 66.7 72.5 67.4
2m agl Dewpt(F): 67.5 71.2 71.1 68.3 70.3 70.7 69.7 69.3 69.7 61.9 65.6 65.3 59.7 51.7 51.7
2m agl RH (%): 89 59 68 87 83 65 79 94 85 44 66 92 77 47 56
10m agl Dir: 276 253 207 221 212 213 202 234 305 227 208 217 349 355 3
10m agl Spd(kt): 3 7 9 9 9 11 11 6 3 7 7 5 10 11 6
6hr Precip (in): 0.00 0.00 0.00 0.00 0.00 0.02 0.06 0.06 0.00 0.00 0.02 0.01 0.01 0.00 0.00
AccumPrecip(in): 0.00 0.00 0.00 0.00 0.00 0.02 0.08 0.14 0.14 0.14 0.16 0.17 0.18 0.18 0.18
Sfc CAPE (J/kg): 100.2 2186.8 2270.8 909.4 1227.8 1957.9 1142.2 1234.4 1694.7 384.2 1040.8 782.2 64.8 0.0 0.0
Sfc CINH (J/kg):-245.2 0.0 -9.0 -182.7 -116.5 0.0 -20.0 -66.6 -22.4 0.0 -22.9 -151.4 -24.7 -3.7 -7.5
0-3km Hel(J/kg): 85.7 36.3 117.2 115.4 32.7 20.1 56.6 43.6 -13.0 13.0 62.0 69.6 192.9 65.9 109.0
Precip H20 (in): 1.57 1.60 1.44 1.31 1.47 1.56 1.64 1.76 1.16 0.91 1.12 1.22 1.11 0.76 0.60
Lifted Index(C): -2.7 -8.3 -7.9 -6.0 -6.4 -4.1 -3.5 -4.5 -3.7 0.1 -2.0 -3.3 -2.6 5.3 9.8
700mb VV(-ub/s): 0.7 -0.5 -1.6 -0.5 4.1 -0.8 1.3 1.6 1.0 -2.1 1.8 -0.7 -0.5 -1.4 -0.4
Thk1000-500mb(m)5708.7 5724.4 5740.2 5733.5 5706.6 5710.7 5708.9 5689.8 5659.7 5660.5 5669.1 5658.4 5636.7 5641.0 5644.2
Thk1000-850mb(m)1403.7 1419.7 1426.7 1420.9 1414.8 1415.6 1409.7 1406.6 1403.9 1412.9 1414.0 1405.8 1384.2 1373.2 1372.3
Thk850-700mb(m):1627.7 1627.2 1634.7 1635.1 1625.5 1619.4 1620.2 1614.4 1605.9 1607.2 1610.6 1611.9 1607.1 1603.1 1601.4
SWEAT Index: 185.5 276.8 278.0 223.8 211.5 194.4 283.2 199.8 92.5 118.8 125.0 207.1 193.2 133.6 53.2
Total Totals Idx 49.4 53.2 53.3 51.4 51.4 46.0 47.2 47.3 40.8 42.8 43.9 47.3 49.2 38.6 30.3
Frz Hgt(ft amsl) 14229 14518 14352 14094 13641 13518 13680 12747 11601 11150 11474 11441 11403 13201 13474
0WetBlbHgt(amsl) 12119 11850 10810 10387 10998 11567 11766 12218 9674 9098 9998 10715 10008 8644 6391
Equil Prs (mb): 379 203 220 310 247 217 239 249 235 263 247 356 1009 1010 1012
Equil Hgt(amsl): 26032 40082 38334 30643 35741 38528 36330 35378 36478 34019 35313 27007 20 20 20
Hail Size(in): 0.09 0.32 0.88 1.44 0.78 0.37 0.21 0.07 0.71 0.51 0.62 0.52 0.31 0.00 0.00
Conv Wind Gust: 46.3 52.6 56.3 55.1 51.5 52.2 47.8 47.1 50.5 59.7 56.7 53.7 45.7 57.8 58.5
Showalter Index: -1.3 -3.8 -4.2 -2.6 -2.3 0.0 -1.1 -0.8 5.0 3.4 2.8 0.9 -0.9 6.3 11.8
Cap Strength(C): 3.1 0.0 0.0 7.2 4.0 0.0 0.0 4.0 3.0 0.0 0.0 6.0 -999.9 -999.9 -999.9
Storm Dir (deg): 4 352 333 264 260 249 263 291 320 297 294 285 302 315 329
Storm Spd (kts): 11 8 9 9 10 13 14 13 13 13 13 15 18 18 14
2m HeatIndex(F): 71 92 86 72 76 87 76 71 74 85 77 68 67 72 67
2m WindChill(F): 71 86 82 72 76 83 76 71 74 85 77 68 67 72 67
HARTFORD/ WESTERN MA MODEL:
Station ID: KCEF Lat: 42.20 Long: -72.53
NAM Model Run: 12Z MAY 28, 2012
Forecast Hours: 0hr 6hr 12hr 18hr 24hr 30hr 36hr 42hr 48hr 54hr 60hr 66hr 72hr 78hr 84hr
Sfc Prs(mb): 1006.9 1005.4 1004.1 1004.7 1003.2 999.7 998.9 998.5 999.0 997.7 998.3 998.0 1000.1 1000.5 1004.6
Mean SLP (mb): 1015.7 1013.9 1012.6 1013.6 1012.1 1008.0 1007.3 1007.2 1007.7 1006.3 1006.9 1006.7 1008.9 1009.3 1013.3
2m agl Tmp (F): 68.6 79.7 73.3 63.0 65.7 86.0 75.4 68.0 69.7 79.1 70.4 63.2 61.5 68.3 60.0
2m agl Dewpt(F): 63.1 67.1 67.3 62.3 64.2 68.8 68.3 67.1 65.5 59.1 60.8 59.2 54.1 45.8 42.3
2m agl RH (%): 82 64 81 98 95 55 78 97 86 49 71 86 76 43 51
10m agl Dir: 37 163 145 108 213 209 220 235 70 236 228 270 322 313 345
10m agl Spd(kt): 1 3 8 8 4 11 8 5 2 11 5 1 10 14 9
6hr Precip (in): 0.00 0.00 0.00 0.13 0.08 0.01 0.03 0.08 0.19 0.01 0.08 0.01 0.04 0.00 0.00
AccumPrecip(in): 0.00 0.00 0.00 0.13 0.21 0.22 0.24 0.32 0.51 0.53 0.60 0.62 0.66 0.66 0.66
Sfc CAPE (J/kg): 86.3 1383.1 2001.8 113.3 197.4 1555.7 1532.1 569.1 492.6 322.3 862.6 300.1 0.0 1.2 0.0
Sfc CINH (J/kg):-274.2 0.0 -33.5 -21.8 -379.6 -0.8 -14.4 -54.8 -10.4 -0.9 -9.3 -134.3 0.0 -3.7 -7.5
0-3km Hel(J/kg): 150.4 129.2 398.0 212.5 96.6 53.3 79.5 62.0 -105.1 83.3 151.8 221.3 189.0 131.6 38.9
Precip H20 (in): 1.33 1.35 1.48 1.68 1.51 1.43 1.50 1.69 0.91 0.96 1.10 1.21 0.94 0.57 0.38
Lifted Index(C): -3.8 -5.0 -7.1 -6.5 -4.6 -5.7 -4.8 -3.2 0.5 0.1 -0.9 -2.0 2.6 9.2 13.3
700mb VV(-ub/s): 0.4 -0.9 -0.8 -1.4 -2.7 -1.4 3.9 6.7 -3.7 -1.7 -1.0 3.2 0.1 0.6 -2.0
Thk1000-500mb(m)5679.2 5700.1 5716.0 5697.6 5692.3 5723.5 5706.4 5671.4 5635.8 5636.3 5631.9 5614.1 5594.8 5585.1 5576.1
Thk1000-850mb(m)1392.6 1405.6 1411.2 1404.4 1408.1 1421.3 1410.9 1397.3 1388.6 1402.0 1396.8 1389.9 1366.5 1362.8 1355.5
Thk850-700mb(m):1622.2 1628.0 1632.4 1623.7 1622.3 1626.8 1623.8 1610.1 1600.2 1598.0 1600.5 1601.2 1592.8 1579.3 1576.7
SWEAT Index: 176.0 178.4 358.6 337.6 246.7 268.2 209.5 223.4 87.9 177.6 176.6 272.9 168.0 138.3 103.1
Total Totals Idx 49.4 49.2 55.0 53.6 50.9 48.1 48.0 46.2 35.5 46.2 46.7 50.7 42.9 34.8 25.9
Frz Hgt(ft amsl) 13594 13638 13827 13420 12880 13656 13280 12320 11257 10447 10699 10591 10623 11587 11918
0WetBlbHgt(amsl) 11183 11405 11579 12031 11792 11451 11885 11978 8853 9412 10047 10448 9880 7224 5369
Equil Prs (mb): 455 243 273 1005 518 206 240 304 323 322 460 530 1000 1000 1005
Equil Hgt(amsl): 21403 35998 33438 246 18116 39467 36142 30782 29255 29225 20746 17140 246 246 246
Hail Size(in): 0.60 0.63 0.55 0.28 0.36 0.60 0.35 0.28 0.41 0.36 0.55 0.52 0.00 0.00 0.00
Conv Wind Gust: 44.9 53.2 50.4 50.7 52.2 57.8 50.3 45.0 50.6 58.4 54.6 54.0 45.7 59.1 57.7
Showalter Index: -0.6 -0.8 -5.5 -4.9 -2.3 -0.6 -0.6 -0.3 8.3 1.3 1.1 -1.2 4.0 9.6 15.2
Cap Strength(C): 4.4 1.2 4.7 -999.9 6.9 0.0 0.0 3.4 0.0 0.0 0.0 6.1 -999.9 -999.9 -999.9
Storm Dir (deg): 341 325 330 307 285 273 269 269 304 297 294 280 289 303 338
Storm Spd (kts): 15 16 17 15 17 16 18 18 21 23 23 25 26 27 22
2m HeatIndex(F): 69 80 73 63 66 90 75 68 70 79 70 63 61 68 60
2m WindChill(F): 69 80 73 63 66 86 75 68 70 79 70 63 61 68 60
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