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Sample Message
1. FNT C NGM MOS GUIDANCE 4/08/99 1200 UTC
2. DAY /APR 8 /APR 9 /APR 10 /
3. HOUR 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00
4. MN/MX 40 51 32 54
5. TEMP 66 66 60 50 46 42 43 47 47 47 43 39 36 35 36 45 51 54 49
6. DEWPT 44 41 39 37 35 34 33 34 33 32 30 27 26 26 27 29 31 31 31
7. CLDS CL CL SC BK OV OV OV OV OV BK SC CL SC CL SC SC SC BK BK
8. WDIR 36 03 05 06 06 06 06 07 06 06 06 06 06 06 06 08 08 07 09
9. WSPD 06 10 11 14 15 12 15 14 15 14 12 13 10 07 09 12 12 10 12
10. POP06 0 23 40 40 21 6 2 1 4
11. POP12 42 42 7 5
12. QPF 0/ 0/ 2/1 2/ 0/2 0/ 0/0 0/ 0/0
13. TSV06 0/ 5 0/ 3 14/ 3 6/ 0 10/ 0 2/ 0 0/ 1 0/ 0 2/ 0
14. TSV12 2/ 7 16/ 3 10/ 0 0/ 0
15. PTYPE R R R R R R R R R R R R R R R
16. POZP 0 1 1 1 0 0 0 0 5 2 6 16 12 5 2
17. POSN 0 0 0 0 2 4 15 11 0 7 0 3 2 9 6
18. SNOW 0/ 0/ 0/0 0/ 0/0 0/ 0/0 0/ 0/0
19. CIG 7 7 7 7 5 6 5 3 5 5 6 7 7
20. VIS 5 5 5 5 5 5 5 5 5 5 5 5 5
21. OBVIS N N N N N N N N N N N N N
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1. Message Identification (Station, Routing, Model, Initial Date and Time (UTC)
2. Valid Month and Day (UTC)
3. Valid Hour (UTC)
4. Maximum or Minimum Temperature for Daytime/Nighttime Period (UTC)
5. Temperature at Specified Time (F)
6. Dew Point Temperature at Specified Time (F)
7. Cloud Cover Forecast for Specified Time (see below)
8. Wind Direction ( times 10 = compass direction) for Specified Time
9. Wind Speed (kts) for Specified Time
10. Probability of Precipitation for 6h Period Ending at Specified Time
11. Probability of Precipitation for 12h Period Ending at Specified Time
12. Precipitation Amount Forecast for 6 and 12h Periods (see below)
13. Thunderstorm/Severe Probabilities for 6h Period Ending at Specified Time
14. Thunderstorm/Severe Probabilities for 12h Period Ending at Specified Time
15. Precipitation Type Forecast for Specified Time (see below)
16. If precipitating, Conditional Probability of Freezing Precip. or Ice Pellets
17. If precipitating, Conditional Probability of Snow for Specified Time
18. Snow Amount for 6 and 12h Periods (see below)
19. Ceiling Height Forecast for Specified Time (see below)
20. Visibility Forecast for Specified Time (see below)
21. Obstructions to Vision Forecast for Specified Time (see below)
CLDS: PTYPE: OBVIS:
CL - Clear R - Liquid H - Haze
SC - Scattered Z - Freezing/Ice F - Fog
BK - Broken S - Snow N - No Haze/Fog
OV - Overcast
QPF: format "A/B" SNOW: format "A/B"
A - Value for 6h Period A - Value for 6h Period
0 - No Precipitation 0 - No Snow
1 - 0.01 to 0.09 inches 1 - Trace to < 2 inches
2 - 0.10 to 0.24 inches 2 - > or = 2 inches
3 - 0.25 to 0.49 inches
4 - 0.50 to 0.99 inches
5 - > or = 1 inch
B - Value for 12h Period B - Value for 12h Period
0 - No Precipitation 0 - No Snow
1 - 0.01 to 0.09 inches 1 - Trace to < 2 inches
2 - 0.10 to 0.24 inches 2 - 2 to < 4 inches
3 - 0.25 to 0.49 inches 4 - 4 to < 6 inches
4 - 0.50 to 0.99 inches 6 - > or = 6 inches
5 - 1.00 to 1.99 inches
6 - > or = 2 inches
CIG: VIS:
1 - < 200 ft. 1 - < 1/2 miles
2 - 200 to 400 ft. 2 - 1/2 to 7/8 miles
3 - 500 to 900 ft. 3 - 1 to 2 3/4 miles
4 - 1000 to 3000 ft. 4 - 3 to 5 miles
5 - 3100 to 6500 ft. 5 - > 5 miles
6 - 6600 to 12000 ft.
7 - > 12000 ft
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