Mike DiDomizio Jordan Root Billy Clark FORECAST REVIEW 11/6/12

Charleston, SC… “The Holy City” Population :120,083(2010) ≈122,689(2011) Metro : 664,607 (2010) Density : 7,111 per sq mi Area : sq mi CHARLESTON, SOUTH CAROLINA

061800Z – Z METAR OBSERVATIONS KCHS Z 34005KT 10SM BKN090 04/02 A2991 AO2 SLP T METAR KCHS Z 33005KT 10SM FEW070 SCT150 03/01 A2989 AO2 SLP122 T KCHS Z 33006KT 10SM BKN150 03/02 A2989 AO2 SLP119 T KCHS Z 34006KT 10SM FEW070 BKN150 04/02 A2988 AO2 SLP118 T KCHS Z 34006KT 10SM BKN070 04/03 A2990 AO2 SLP124 T METAR KCHS Z 33007KT 10SM FEW120 04/02 A2990 AO2 SLP123 T METAR KCHS Z 36008KT 10SM FEW120 05/02 A2990 AO2 SLP124 T KCHS Z 01005KT 10SM CLR 06/03 A2991 AO2 SLP129 T KCHS Z 01006KT 10SM CLR 07/03 A2992 AO2 SLP132 T KCHS Z 02007KT 10SM FEW050 07/03 A2992 AO2 SLP132 T METAR KCHS Z 01008G16KT 10SM SCT050 08/04 A2993 AO2 SLP135 T KCHS Z 36008KT 10SM FEW050 08/04 A2993 AO2 SLP133 T METAR KCHS Z 36006KT 10SM FEW050 09/04 A2993 AO2 SLP133 T METAR KCHS Z 01009KT 10SM FEW050 SCT070 10/04 A2991 AO2 SLP126 T KCHS Z 35008KT 10SM BKN050 BKN070 11/04 A2992 AO2 SLP131 T KCHS Z 01008KT 10SM BKN050 BKN080 11/04 A2991 AO2 SLP126 T METAR KCHS Z 02010KT 10SM BKN050 12/04 A2989 AO2 SLP120 T METAR KCHS Z 01010KT 10SM BKN050 12/05 A2989 AO2 SLP120 T KCHS Z 02009KT 10SM BKN050 12/05 A2991 AO2 SLP T

061800Z SURFACE ANALYSIS

300MB OBSERVATION

21Z RADAR OBSERVATION

0Z RADAR OBSERVATION

061800Z GFS

VERIFICATIONS

SURVEY PATH

UP CLOSE AND PERSONAL

CAREER PATH

UP CLOSE AND PERSONAL

LESSONS LEARNED Dry slots associated with low pressure systems consist of clearer skies that allow surface temperatures to quickly rise during the day. Dry slots also coincide with no precipitation. Daylight savings time recently ended, which means the sun sets at an earlier local time. Maximum heating occurs at an earlier time (i.e. 18Z and 19Z). Clear skies and light winds at night allow temperatures to drop faster than models predict. Dew points typically reach their maximum around dawn (i.e. 12Z).

BLUEFIELD, WEST VIRGINIA Bluefield, WV… “Nature's air conditioned city, where the summer spends the winter." Population : 10,447 (2010) Metro : 107,342 (2010) Density : 1,311.3 per sq mi Area : 8.7 sq mi (all land)

KBLF Z AUTO 00000KT 7SM SCT012 M02/M04 A2986 AO2 SLP123 T KBLF Z AUTO 00000KT 6SM BR BKN012 BKN040 M02/M04 A2985 AO2 KBLF Z AUTO 10003KT 6SM BR CLR M02/M04 A2985 AO2 SLP123 T KBLF Z AUTO 00000KT 5SM BR BKN110 M02/M04 A2986 AO2 SLP122 T KBLF Z AUTO 00000KT 7SM CLR M02/M04 A2985 AO2 SLP119 T KBLF Z AUTO 00000KT 9SM CLR M01/M04 A2986 AO2 SLP120 T KBLF Z AUTO 00000KT 10SM FEW021 M01/M03 A2988 AO2 SLP125 T KBLF Z AUTO 10005KT 10SM FEW048 M01/M03 A2988 AO2 SLP127 T KBLF Z AUTO 11004KT 10SM CLR M01/M04 A2990 AO2 SLP135 T KBLF Z AUTO 35003KT 10SM CLR 00/M04 A2990 AO2 SLP137 T KBLF Z AUTO 10003KT 10SM CLR 01/M03 A2991 AO2 SLP141 T KBLF Z AUTO 00000KT 10SM CLR 01/M03 A2993 AO2 SLP147 T KBLF Z AUTO 11004KT 10SM CLR 02/M03 A2993 AO2 SLP148 T KBLF Z AUTO 12003KT 10SM BKN050 03/M03 A2994 AO2 SLP151 T KBLF Z AUTO 11003KT 10SM OVC040 03/M03 A2992 AO2 SLP142 T KBLF Z AUTO VRB03KT 10SM CLR 04/M03 A2992 AO2 SLP141 T KBLF Z AUTO 13003KT 10SM CLR 05/M03 A2993 AO2 SLP140 T KBLF Z AUTO 00000KT 10SM CLR 06/M03 A2994 AO2 SLP145 T KBLF Z AUTO VRB03KT 10SM CLR 06/M03 A2996 AO2 SLP150 T KBLF Z AUTO 15006KT 10SM CLR 05/M03 A2997 AO2 SLP154 T Z – Z METAR OBSERVATIONS

070900Z SURFACE ANALYSIS

070900Z RADAR OBSERVATIONS

VERIFICATIONS

CAREER PATH

UP CLOSE AND PERSONAL

LESSONS LEARNED Clear skies and calm winds are ingredients for fall fog formation, but there needs to be recent precipitation and/or enough soil moisture. Also, calm winds do not produce enough energy to lift winds upslope for fog to form. Clear skies and calm winds will drop night temperatures below model output predictions. Airport elevation is around 3000ft. Models can be misleading in mountainous terrain because the grid points may be in different elevations. Mist does not always lead to low visibility and ceiling heights.