DTW  EC   NGM MOS GUIDANCE   3/10/97  1200 UTC
 DAY /MAR  10 /MAR  11                /MAR  12                /
 HOUR   18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00
 MN/MX                    32          43          23          43
 TEMP   43 47 46 43 39 37 34 36 39 41 36 31 27 25 25 34 40 42 37
 DEWPT  25 27 29 33 32 29 27 27 25 23 21 20 19 18 18 20 21 21 22
 CLDS   BK BK BK BK BK BK OV SC SC SC CL CL CL CL CL CL SC SC CL
 WDIR   24 24 22 24 26 28 31 31 30 30 30 29 28 29 28 29 22 22 13
 WSPD   16 16 14 15 16 16 16 17 17 17 12 09 07 06 05 08 08 06 05
 POP06        21    24    14    21    18     7     4     0     5
 POP12                    30          30          10           5
 QPF         0/    0/    0/0   0/    0/0   0/    0/0   0/    0/0
 TSV06      2/ 8  4/ 4  3/ 2  0/ 0  1/ 5  0/ 2  1/ 4  0/ 1  1/ 9
 TSV12            5/ 9        3/ 0        0/ 5        1/ 3
 PTYPE   R  R  R  R  R  R  S  S  S  S  S     S     S     S     S
 POZP    3  4  3  2  9  1  0  2  0  0  1     4     2     2     3
 POSN   38 21 11 10  7 45 64 88 89 96 94    96    92    81    73
 SNOW        0/    0/    0/0   1/    1/1   0/    0/0   0/    0/0
 CIG     7  6  6  6  6  6  5  5  4  5  7     7     7
 VIS     5  5  5  5  5  5  5  5  5  5  5     5     5
 OBVIS   N  N  N  N  N  N  N  N  N  N  N     N     N


 NGM MOS forecast for DTW :

 HOUR  Time (UTC)
 MN/MX  Daily Min/Max temps (deg F)
 TEMP, DEWPT  Temperature & Dew ponit (deg F)
 CLDS  Mean opaque cloud coverage
 WDIR, WSPD  Near surface wind direction & speed
 POP06, POP12  6 & 12 hour measureable precipitation probabilities, for periods
               ending at times indicated
 QPF  Quantitative precipitation category
 TSV06, TSV12  6 & 12 hour absolute and conditional thunderstorm probabilities
               for periods ending at times indicated
 PTYPE  Conditional forecast precipitation type (R - Rain, S - Snow, Z - Freezing
        rain &/or sleet)
 POZP  Conditional probability of freezing rain &/or sleet
 POSN  Conditional probability of snow
 SNOW  Snow amount category
 CIG  Cloud cieling category
 VIS  Visibility category
 OBVIS  Obstructions to visibility (N - None, F - Fog, H - haze &/or smoke ?)


 That's from memeory, so I do not recall all categories (& can't find this info on I-net).
 Most relevant to cloud forecasts are CLDS & CIG.  The forecast indicated broken BKN cloud
 cover during the afternoon and evening, which was a slight overestimate.  CIG of 6 is
 among the highest of categories, I recall about 6000 - 7500 feet ?