How to Decode the FWC Guidance
ZCZC NMCFWCMOB
FOUS14 KMOB 191540 - BULLETIN HEADER
MOB S NGM MOS GUIDANCE 2/19/99 1200 UTC - STATION, ROUTING, MODEL, INITIAL DATE AND TIME IN UTC
DAY /FEB 19 /FEB 20 /FEB 21 / - VALID MONTH AND DAY [UTC]
HOUR 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 - VALID HOUR [UTC]
MX/MN 41 64 40 63 - MAXIMUM OR MINIMUM TEMPERATURE FOR DAYTIME/NIGHTTIME PERIOD �F
TEMP 61 63 56 50 46 44 43 50 59 62 56 50 47 44 42 51 58 61 54 - TEMPERATURE AT SPECIFIED TIME �F
DEWPT 42 40 40 41 40 39 38 38 36 35 38 39 39 38 36 36 33 32 34 - DEW POINT TEMPERATURE AT SPECIFIED TIME �F
CLDS CL CL CL CL CL CL SC SC SC SC SC CL CL CL CL CL CL CL CL - OPAQUE CLOUD COVER FORECAST FOR SPECIFIED TIME [SEE BELOW]
WDIR 31 30 31 31 34 01 35 02 01 35 31 34 34 36 35 01 01 35 36 - WIND DIRECTION [ X 10 = COMPASS DIRECTION] FOR SPECIFIED TIME
WSPD 11 12 11 08 06 07 05 06 05 07 06 05 06 06 07 10 15 13 09 - WIND SPEED [KTS] FOR SPECIFIED TIME
POP06 4 0 0 1 4 4 5 2 3 - PROBABILITY OF PRECIPITATION FOR 6-H PERIOD ENDING AT SPECIFIED TIME
POP12 0 3 8 4 - PROBABILITY OF PRECIPITATION FOR 12-H PERIOD ENDING AT SPECIFIED TIME
QPF 0/ 0/ 0/0 0/ 0/0 0/ 0/0 0/ 0/0 - PRECIPITATION AMOUNT FORECAST FOR 6- AND 12-H PERIODS [SEE BELOW]
TSV06 0/ 2 0/ 3 0/ 2 4/ 0 2/ 2 2/ 1 12/ 3 0/ 0 3/ 4 - THUNDERSTORM/CONDITIONAL SEVERE T-STORM PROB. [FOR 6-H PDS ENDING AT TIME]
TSV12 0/ 3 2/ 1 4/ 2 8/ 2 - THUNDERSTORM/CONDITIONAL SEVERE T-STORM PROB. [FOR 12-H PDS ENDING AT TIME]
PTYPE R R R R R R R R R R R R R R R - CONDITIONAL PRECIPITATION TYPE FORECAST FOR SPECIFIED TIME [SEE BELOW]
POZP 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 - CONDITIONAL PROBABILITY OF FREEZING PRECIP. OR ICE PELLETS, IF PRECIPITATING
POSN 0 1 0 0 0 0 0 0 1 1 0 0 0 0 0 - CONDITIONAL PROBABILITY OF SNOW FOR SPECIFIED TIME, IF PRECIPITATING
SNOW 0/ 0/ 0/0 0/ 0/0 0/ 0/0 0/ 0/0 - SNOW AMOUNT FOR 6- AND 12-H PERIODS [SEE BELOW]
CIG 7 7 7 7 7 7 7 7 7 7 7 7 7 - CEILING HEIGHT FORECAST FOR SPECIFIED TIME [SEE BELOW]
VIS 5 5 5 5 5 5 5 5 5 5 5 5 5 - VISIBILITY FORECAST FOR SPECIFIED TIME [SEE BELOW]
OBVIS N N N N N N N N N N N N N - OBSTRUCTION TO VISION FORECAST FOR SPECIFIED TIME [SEE BELOW]
CLDS (Clouds)
CL = CLEAR
SC = SCATTERED
BK = BROKEN
OV = OVERCAST
PTYPE (Precipitation Type)
R = LIQUID
Z = FREEZING OR ICE PELLETS
S = SNOW
QPF FORMAT "A/B" (Quantitative Precipitation Forecast)
A - VALUE FOR 6-H PERIOD
0 = NO PRECIPITATION
1 = 0.01 - 0.09 INCHES
2 = 0.10 - 0.24 INCHES
3 = 0.25 - 0.49 INCHES
4 = 0.50 - 0.99 INCHES
5 = Greater than or equal to 1.00 INCH
B - VALUE FOR 12-H PERIOD
0 = NO PRECIPITATION
1 = 0.01 - 0.09 INCHES
2 = 0.10 - 0.24 INCHES
3 = 0.25 - 0.49 INCHES
4 = 1.00 - 1.99 INCHES
5 = Greater than or equal to 2.00 INCHES
SNOW FORMAT "A/B"
A - VALUE FOR 6-H PERIOD
0 = NO SNOW
1 = TRACE - < 2 INCHES
2 = Greater than or equal to 2 INCHES
B - VALUE FOR 12-H PERIOD
0 = NO SNOW
1 = TRACE - < 2 INCHES
2 = 2 - < 4 INCHES
4 = 4 - < 6 INCHES
6 = Greater than or equal to 6 INCHES
OBVIS (Obstruction to Visibility)
H = HAZE
F = FOG
N = NO HAZE OR FOG
CIG (Ceiling)
1 = > 200 FEET
2 = 200 - 400 FEET
3 = 500 - 900 FEET
4 = 1000 - 3000 FEET
5 = 3100 - 6500 FEET
6 = 6600 - 12000 FEET
7 = > 12000 FEET
VIS (Visibility)
1 = < 1/2 MILE
2 = 1/2 - 7/8 MILES
3 = 1 - 2 3/4 MILES
4 = 3 - 5 MILES
5 = > 5 MILES
National Weather Service
Mobile/Pensacola Weather Forecast Office
(251) 633-6443
sr-mob.webmaster@noaa.gov
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