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Degrib: NDFD: Simple Weather 1

For convention sake, the fields of the weather string here are W=Weather type, C=Coverage type, I=Intensity, V=Visibility (not used), H=Hazard (not used). I use "C programming" convention to refer to which word. [0] refers to the 1st, [1] the 2nd, ... [4] the 5th.

To use this table, find the entry that it matches the most specifications of. In otherwords if it is W[0]=L, C[0]=SCT, use 1, but if C[0] is not in {SCT, SCHC, PATCHY, ISO, CHC}, use 9. If it matters, the precident is from left to right.

The "Simple Weather Code" is in the "Code" column.

W[0]C[0]W[1]I[0]CodeLabel
****0No weather
LSCT, SCHC, PATCHY, ISO, CHC**1LoProb L
RSCT, SCHC, PATCHY, ISO, CHC*-, --2LoProb R-
RSCT, SCHC, PATCHY, ISO, CHC*m3LoProb R
RSCT, SCHC, PATCHY, ISO, CHC*+4LoProb R+
R, TSCT, SCHC, PATCHY, ISO, CHCT, R*5LoProb R/T
RWSCT, SCHC, PATCHY, ISO, CHC**6LoProb RW
RW, TSCT, SCHC, PATCHY, ISO, CHCT, RW*7LoProb RW/T
TSCT, SCHC, PATCHY, ISO, CHC**8LoProb T
L***9HiProb L
R**-, --10HiProb R-
R**m11HiProb R
R**+12HiProb R+
R, T*T, R*13HiProb R/T
RW***14HiProb RW
RW, T*T, RW*15HiProb RW/T
T***16HiProb T
T**+17Severe T
RSCT, SCHC, PATCHY, ISO, CHCS, SW*18LoProb R/S
SWSCT, SCHC, PATCHY, ISO, CHCR*
SSCT, SCHC, PATCHY, ISO, CHCR, RW*
SW, RWSCT, SCHC, PATCHY, ISO, CHCRW, SW*19LoProb RW/SW
R, IPSCT, SCHC, PATCHY, ISO, CHCIP, R*20LoProb R/IP
IP, SSCT, SCHC, PATCHY, ISO, CHCS, IP*21LoProb S/IP
R*S, SW*22HiProb R/S
SW*R*
S*R, RW*
SW, RW*RW, SW*23HiProb RW/SW
R, IP*IP, R*24HiProb R/IP
IP, S*S, IP*25HiProb S/IP
IPSCT, SCHC, PATCHY, ISO, CHC*--, -26LoProb IP-
IPSCT, SCHC, PATCHY, ISO, CHC*m27LoProb IP
IPSCT, SCHC, PATCHY, ISO, CHC*+28LoProb IP+
ZLSCT, SCHC, PATCHY, ISO, CHC**29LoProb ZL
LSCT, SCHC, PATCHY, ISO, CHCZL*29LoProb ZL
R, ZLSCT, SCHC, PATCHY, ISO, CHCZL, R*30LoProb ZL/R
ZRSCT, SCHC, PATCHY, ISO, CHC*--, -31LoProb ZR-
ZRSCT, SCHC, PATCHY, ISO, CHC*m32LoProb ZR
ZRSCT, SCHC, PATCHY, ISO, CHC*+33LoProb ZR+
R, ZRSCT, SCHC, PATCHY, ISO, CHCZR, R*34LoProb ZR/R
ZR, IPSCT, SCHC, PATCHY, ISO, CHCIP, ZR*35LoProb ZR/IP
IP**--, -36HiProb IP-
IP**m37HiProb IP
IP**+38HiProb IP+
ZL***39HiProb ZL
R, L*ZL*40HiProb ZL/R
ZL*R*
ZR**--, -41HiProb ZR-
ZR**m42HiProb ZR
ZR**+43HiProb ZR+
R, ZR*ZR, R*44HiProb ZR/R
ZR, IP*IP, ZR*45HiProb ZR/IP
SWSCT, SCHC, PATCHY, ISO, CHC**46LoProb SW
SSCT, SCHC, PATCHY, ISO, CHC*-, --47LoProb S-
SSCT, SCHC, PATCHY, ISO, CHC*m48LoProb S
SSCT, SCHC, PATCHY, ISO, CHC*+49LoProb S+
SW***50HiProb SW
S**-, --51HiProb S-
S**m52HiProb S
S**+53HiProb S+
F***54F
H***55H
K***56K
BS***57BS
BD***58BD

Note: "L : SCT, SCHC, PATCHY, ISO, CHC : ZL" should probably be 30 based on what was done for 40.
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    National Oceanic and Atmospheric Administration
    National Weather Service
    Meteorological Development Laboratory
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    Page last Modified: December 13, 2006.
 Degrib Questions? Arthur Taylor
NDFD Questions? nws.ndfd@noaa.gov
XML Questions? Paul Hershberg & John Schattel
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