INTERPRETATION OF THE NGM BASED MOS FORECAST MESSAGE (FWC - FOUS14) FOUS14 KWBC 060357 - Bulletin Header. DCA ESC NGM MOS GUIDANCE 3/06/91 0000 UTC - Message ID [Station, Routing, Model, Initial Date and Time (UTC)]. DAY /MAR 6 /MAR 7 /MAR 8 - Valid Month and Day (UTC). HOUR 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 - Valid Hour (UTC). MX/MN 59 39 54 24 - Maximum or minimum temperature for daytime/nighttime period (F). TEMP 37 34 33 38 45 53 52 49 46 43 40 42 47 51 42 39 35 30 24 - Temperature at specified time (F). DEWPT 27 28 28 30 32 36 40 38 41 41 37 33 28 27 25 21 20 19 19 - Dew point temperature at specified time (F). CLDS OV OV OV OV OV OV OV OV OV OV BK BK BK SC SC SC CL CL CL - Opaque cloud cover forecast for specified time (see below). WDIR 26 18 08 12 14 14 15 18 24 27 28 29 29 29 29 33 01 02 00 - Wind direction ( x 10 = compass direction) for specified time. WSPD 01 04 06 10 11 12 16 18 13 15 12 20 24 22 14 12 14 08 00 - Wind speed (kts) for specified time. POP06 4 9 46 85 62 3 7 12 8 - Probability of precipitation for 6-h period ending at specified time. POP12 49 91 8 19 - Probability of precipitation for 12-h period ending at specified time. QPF 0/ 0/ 1/1 3/ 2/4 0/ 0/0 0/ 0/0 - Precipitation amount forecast for 6- and 12-h periods (see below). TSV06 2/ 0 3/ 0 4/ 1 5/ 1 6/ 2 16/ 3 11/ 1 8/ 0 0/ 0 - Thunderstorm/conditional severe T-storm probs. for 6-h periods ending at time. TSV12 4/ 0 8/ 1 21/ 4 9/ 1 - Thunderstorm/conditional severe T-storm probs. for 12-h per. ending at time. PTYPE S S S S S R R R R R R R R S Z - Conditional precipitation type forecast for specified time (see below). POZP 8 10 12 6 0 0 0 0 0 1 3 0 2 24 35 - Conditional probability of freezing precip. or Ice pellet~, If precipitating. POSN 65 67 70 48 41 14 11 13 15 16 20 9 16 50 42 - Conditional probability of snow for specified time if precipitating. SNOW 0/ 0/ 0/1 0/ 0/0 0/ 0/0 0/ 0/0 - Snow amount for 6- and 12-h periods (see below). CIG 4 5 4 4 5 6 7 6 3 2 1 5 6 - Ceiling height forecast for specified time (see below). VIS 3 4 3 5 5 5 5 4 2 2 1 3 4 - Visibility forecast for specified time (see below). OBVIS H H H N N N N F F F F H N - Obstruction to vision forecast for specified time (see below). CLDS QPF format "A/B" SNOW format "A/B" CIG CL - Clear A - Value for 6-h period A - Value for 6-h period 1 = < 200 ft. SC - Scattered 0 = no precipitation 0 = no snow 2 = 200 - 400 ft. BK - Broken 1 = 0.01 - 0.09 inches 1 = trace - C 2 inches 3 = 500 - 900 ft. OV - Overcast 2 = 0.10 - 0.24 inches 2 = > 2 Inches 4 = 1000 - 3000 ft. 3 = 0.25 - 0.49 inches B - Value for 12-h period 5 = 3100 - 6500 ft. PTYPE 4 = 0.50 - 0.99 inches 0 = no snow 6 = 6600 - 12000 ft. R - Liquid 5 = > 1.00 inches 1 = trace - < 2 inches 7 = > 12000 ft. Z - Freezing or B - Value for 12-h period 2 = 2 - < 4 inches Ice pellets 0 = no precipitation 4 = 4 - < 6 inches S - Snow 1 = 0.01 - 0.09 inches 6 = > 6 inches VIS 2 = 0.10 - 0.24 inches 1 = < 1/2 mile OBVIS 3 = 0.25 - 0.49 inches 2 = 1/2 - 7/8 mlle H - Haze 4 = 0.50 - 0.99 inches 3 = 1 - 2 3/4 miles F - Fog 5 = 1.00 - 1.99 inches 4 = 3 - 5 miles N - No haze, or fog 6 = > 2.00 inches 5 = > 5 miles