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Pittsburgh

Pittsburgh. Meteorology 415 – Fall 2012 First Forecast Review. Pittsburgh. Population (2010[6])  • City 305,704 •  Density 5,636/ sq  mi (2,176/km 2 ) •  Urban 1,753,136 •  Metro 2,356,285 . Pittsburgh - OBS.

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Pittsburgh

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  1. Pittsburgh Meteorology 415 – Fall 2012 First Forecast Review

  2. Pittsburgh Population (2010[6])  • City 305,704 • Density 5,636/sq mi (2,176/km2) • Urban 1,753,136 • Metro 2,356,285

  3. Pittsburgh - OBS • KPIT 041751Z 24006G15KT 7SM -RA SCT026 BKN055 OVC075 25/21 A2990 RMK AO2 RAB46 SLP123 VIS LWR E P0000 60000 T02500211 10272 20222 58012= • KPIT 041851Z 18009KT 150V210 10SM FEW042 SCT065 BKN110 28/21 A2987 RMK AO2 RAE02 SLP112 P0001 T02780206= • KPIT 041951Z 23006KT 10SM SCT034 BKN075 BKN120 29/20 A2985 RMK AO2 SLP104 T02890200= • KPIT 042051Z 22007KT 10SM BKN036 BKN055 BKN150 28/19 A2984 RMK AO2 SLP101 60001 T02830194 56020= • KPIT 042151Z 22007KT 10SM -RA FEW039 BKN055 OVC085 28/21 A2984 RMK AO2 RAB49 SLP102 P0000 T02780206= • KPIT 042244Z 28008KT 5SM R28R/4500VP6000FT -TSRA BR FEW035CB BKN050 OVC080 23/22 A2985 RMK AO2 TSB42 OCNL LTGICCC S-SW TS S-SW MOV E P0007= • KPIT 042244Z 28008KT 5SM R28R/4500VP6000FT -TSRA BR FEW035CBBKN050 OVC080 23/22 A2985= • KPIT 042251Z 27008KT 3SM -TSRA BR FEW033CB BKN046 OVC060 23/22 A2986 RMK AO2 TSB42 SLP109 OCNL LTGICCC S-SW TS S-SW MOV E P0008 T02330217= • KPIT 042256Z 25009KT 1 1/2SM +TSRA BR FEW019 BKN033CB OVC050 23/22 A2986 RMK AO2 OCNL LTGICCC SE-SW TS SE-SW MOV E P0001 $= • KPIT 042256Z 25009KT 1 1/2SM +TSRA BR FEW019 BKN033CB OVC050 23/22A2986= • KPIT 042251Z 27008KT 3SM -TSRA BR FEW033CB BKN046 OVC060 23/22 A2986= • KPIT 042339Z 22003KT 10SM FEW022 BKN046 OVC065 23/21 A2985 RMK AO2 TSE37RAE37 TS MOV E P0025= • KPIT 042351Z 21003KT 9SM BKN046 BKN065 23/22 A2985 RMK AO2 TSE37RAE37 SLP105 TS MOV E P0025 60034T02280217 10289 20228 50003=

  4. Pittsburgh - OBS • KPIT 042351Z 21003KT 9SM BKN046 BKN065 23/22 A2985 RMK AO2 TSE37RAE37 SLP105 TS MOV E P0025 60034 T02280217 10289 20228 50003= • KPIT 050051Z 23004KT 10SM FEW035 BKN055 OVC095 23/22 A2985 RMK AO2 SLP107 LTG DSNT SE T02330217= • KPIT 050151Z COR 26003KT 10SM BKN046 BKN080 OVC100 23/21 A2987 RMK AO2 SLP112 T02280211= • KPIT 050251Z 28004KT 10SM OVC048 23/21 A2986 RMK AO2 SLP108 T02280211 50003= • KPIT 050337Z 32006KT 10SM SCT007 OVC044 23/21 A2986 RMK AO2= • KPIT 050351Z 32006KT 10SM SCT007 OVC046 23/21 A2986 RMK AO2 SLP108 T02280211= • KPIT 050451Z COR 23003KT 8SM BKN007 OVC046 23/21 A2986 RMK AO2 SLP110 T02280211 402890206= • KPIT 050551Z 33004KT 9SM OVC009 23/21 A2986 RMK AO2 SLP109 T02280211 10233 20222 50001=

  5. Pittsburgh – surface map

  6. Pittsburgh - satellite

  7. Pittsburgh - radar

  8. Pittsburgh -radar

  9. Pittsburgh - verifications

  10. Pittsburgh scores

  11. Pittsburgh – lessons learned • Front or boundary passage at the time of peak convection in a tropical air mass will lead to a t-storm! • A lifting wave (leftover Isaac) will often entrain drier air as the southwesterly flow increases. • There is a tendency for convection to consolidate around a primary boundary as dusk approaches • Consider the likelihood of sunny breaks ahead of a cold front with burgeoning convection – to briefly raise late afternoon temperatures

  12. ClASS VIEW OF A RAIN DELAY AT PNC PARK 74% Indicated a 60% chance or less with half the class saying less than 40% risk – none said >80%! Should the delay occur, the sense was that it was last for 15-30 minutes – the rain delay was >60 minutes!

  13. Pirates outcome – a winner with a 75 minute rain delay! Rodriguez looked a little shaky early on following a 75-minute rain delay. Jose Altuve singled to lead off the game then stole second. Justin Maxwell walked with two outs, but Jason Castro grounded to short and from there Rodriguez cruised. Houston never got a runner to third over Rodriguez's final six innings.

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