Point Forecast Matrices
Issued by NWS Des Moines, IA

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Point Forecast Matrices
National Weather Service Des Moines IA
1106 AM CST Tue Jan 16 2018

IAZ060-162200-
Des Moines-Polk IA
41.54N  93.65W Elev. 924 ft
1106 AM CST Tue Jan 16 2018

Date             Tue 01/16/18            Wed 01/17/18            Thu 01/18/18
CST 3hrly     03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                       9           0          24          14          37
Temp                    3  7  5  2  0  0  0  5 17 24 18 17 18 14 14 18 32 37 33
Dewpt                  -2  0  0 -1 -2 -2 -2  0  6  9  9 11 10 10 10 13 19 24 21
RH                     79 72 79 87 91 91 91 79 61 52 67 77 70 84 84 80 58 59 61
Wind dir               NW NW NW  W  W SW SW SW SW SW SW SW SW SW SW SW SW SW SW
Wind spd               11  9  5  4  4  4  5  6 11 11  9 10 11  8  8  8 10  9  8
Wind gust                                         21
Clouds                 B2 B1 SC SC FW FW FW FW FW CL FW FW FW CL CL FW SC FW FW
PoP 12hr                     70           0           0           0           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Flurries                C
Snow
Wind chill            -12 -6 -6 -7-10-10-12 -8  4 13  7  4  6  3  3  8 24 30 26
Min chill             -15   -10   -12   -13   -13     6     3     2     3    26


Date               Fri 01/19/18  Sat 01/20/18  Sun 01/21/18  Mon 01/22/18
CST 6hrly     00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max            24    45      31    43      30    38      19    31
Temp          25   26 42 43 34   32 42 40 32   31 38 33 25   19 30 30
Dewpt         22   22 29 29 30   29 35 33 29   29 33 27 22   19 19 19
PWind dir          SW    SW      SW     W      NE    NE      NW    NW
Wind char          LT    GN      GN    LT      LT    GN      GN    GN
Avg clouds    FW   FW SC SC SC   SC B1 B1 B2   B2 B2 OV OV   B2 B1 SC
PoP 12hr            0     0       0    10      10    60      60    20
Rain                                               L  L
Snow                                               L  L  L    L  S

$$
IAZ039-162200-
Waterloo/Cedar Falls-Black Hawk IA
42.55N  92.40W Elev. 865 ft
1106 AM CST Tue Jan 16 2018

Date             Tue 01/16/18            Wed 01/17/18            Thu 01/18/18
CST 3hrly     03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                      10          -4          21          12          33
Temp                    5  8  4 -1 -3 -4 -3  1 14 21 16 13 14 12 12 14 28 33 27
Dewpt                   2  4  1 -2 -4 -4 -3 -1  5  9  9  9 10 11 10 13 19 23 20
RH                     87 83 87 95 95100100 91 67 59 73 84 84 96 91 96 68 66 74
Wind dir               NW NW NW NW  W  W SW SW SW SW SW SW SW SW SW SW SW SW SW
Wind spd               11  9  5  5  5  5  6  8 13 13 10 11 11  9  8  9 10  9  8
Wind gust                                                  23
Clouds                 B1 B1 B1 SC SC SC SC FW FW FW FW FW FW FW FW FW SC FW FW
PoP 12hr                     10           0           0           0           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Flurries
Wind chill            -10 -5 -7-13-15-16-16-13 -1  8  4  0  1 -1  0  2 19 25 19
Min chill             -14    -9   -16   -19   -19     2    -1    -3    -2    18


Date               Fri 01/19/18  Sat 01/20/18  Sun 01/21/18  Mon 01/22/18
CST 6hrly     00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max            19    41      26    40      26    35      18    25
Temp          21   20 39 38 33   26 39 35 30   27 35 31 26   18 25 20
Dewpt         20   19 28 29 28   26 33 31 28   27 32 29 23   18 18 16
PWind dir          SW     S      SW     W      NE    NE       N    NW
Wind char          LT    GN      GN    LT      LT    GN      GN    GN
Avg clouds    FW   FW SC SC SC   SC B1 B2 B2   B2 B2 OV OV   B2 B2 B1
PoP 12hr            0     0       0    10      10    60      70    40
Rain                                                  L
Snow                                               L  L  L    L  C

$$
IAZ048-162200-
Ames-Story IA
41.99N  93.62W Elev. 936 ft
1106 AM CST Tue Jan 16 2018

Date             Tue 01/16/18            Wed 01/17/18            Thu 01/18/18
CST 3hrly     03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                       8          -3          23          12          35
Temp                    2  6  3  0 -1 -2 -3  3 15 23 17 15 16 12 12 16 29 35 28
Dewpt                  -2  0  0 -2 -3 -3 -3 -1  7 10 10 11 11 10 10 13 20 25 21
RH                     83 76 87 91 91 95100 83 70 57 73 84 80 91 91 88 69 66 75
Wind dir               NW NW NW  W  W SW SW SW SW SW SW SW SW SW SW SW SW SW SW
Wind spd               12 10  5  4  4  4  6  8 12 13 10 11 11  9  8  8 10  9  8
Clouds                 B1 SC SC SC SC FW FW FW FW CL FW FW FW FW FW FW SC FW FW
PoP 12hr                     30           0           0           0           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Flurries                C
Snow
Wind chill            -14 -9 -7-10-11-13-16-12  1 11  5  2  3  0  1  5 20 28 20
Min chill             -17   -12   -13   -17   -17     4    -2     0     0    20


Date               Fri 01/19/18  Sat 01/20/18  Sun 01/21/18  Mon 01/22/18
CST 6hrly     00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max            21    42      27    41      26    35      18    28
Temp          22   22 40 38 33   27 40 36 30   26 35 31 25   18 27 27
Dewpt         21   20 29 29 28   26 32 31 28   26 30 27 22   17 18 18
PWind dir          SW     S      SW    NW      NE    NE       N    NW
Wind char          LT    GN      GN    LT      LT    GN      GN    GN
Avg clouds    FW   FW SC SC SC   SC B1 B2 B2   B2 OV OV OV   B2 B1 SC
PoP 12hr            0     0       0    10      10    60      60    30
Rain                                                  L
Snow                                               L  L  L    C  C

$$
IAZ004-162200-
Estherville-Emmet IA
43.40N  94.75W Elev. 1315 ft
1106 AM CST Tue Jan 16 2018

Date             Tue 01/16/18            Wed 01/17/18            Thu 01/18/18
CST 3hrly     03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                       3          -3          25          14          36
Temp                   -2  1 -1 -3 -2 -2  0  4 17 25 20 16 16 14 15 19 32 36 28
Dewpt                  -6 -4 -4 -6 -5 -3 -3 -1  7 12 12 13 13 14 13 16 23 27 23
RH                     82 79 87 86 87 95 87 79 64 57 71 88 88100 92 88 69 69 81
Wind dir               NW NW  W  W SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW
Wind spd               11  9  6  8 10 10 12 13 16 16 14 17 14 11 11 11 11  9  9
Wind gust                                      26 26
Clouds                 B1 B1 SC FW FW SC FW FW FW CL FW FW FW FW FW FW FW FW FW
PoP 12hr                     10           0           0           0           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Flurries
Snow
Wind chill            -20-14-14-18-19-19-18-15  2 12  6  1  1  0  2  7 23 29 19
Min chill             -23   -16   -20   -20   -21     6     0     0     2    19


Date               Fri 01/19/18  Sat 01/20/18  Sun 01/21/18  Mon 01/22/18
CST 6hrly     00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max            21    40      23    36      21    27      12    23
Temp          22   22 39 35 27   24 36 29 25   21 27 23 18   12 23 19
Dewpt         21   20 29 28 25   23 28 26 23   21 23 20 16   12 15 15
PWind dir          SW    SW       W    NW       N     N       N    NW
Wind char          GN    GN      GN    LT      GN    GN      BZ    GN
Avg clouds    FW   SC SC B1 B1   B1 B2 B2 B2   OV OV OV OV   B2 B1 SC
PoP 12hr            0     0       0     5      10    70      50    10
Snow                                               C  L  C    C

$$
IAZ035-162200-
Fort Dodge-Webster IA
42.55N  94.18W Elev. 1165 ft
1106 AM CST Tue Jan 16 2018

Date             Tue 01/16/18            Wed 01/17/18            Thu 01/18/18
CST 3hrly     03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                       7          -2          24          13          35
Temp                    1  5  2 -1 -2 -1  0  4 16 24 18 15 17 13 14 15 29 35 29
Dewpt                  -4 -2 -2 -4 -5 -3 -3 -1  8 12 11 11 12 11 11 14 22 27 22
RH                     79 72 83 87 87 91 87 79 70 60 73 84 80 91 88 96 75 72 75
Wind dir               NW NW NW  W SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW
Wind spd               11  8  5  5  5  5  8 10 13 13 11 12 12  9  9  9 10  9  8
Clouds                 B1 SC SC SC SC SC FW FW FW CL FW FW FW FW FW FW SC FW FW
PoP 12hr                     10           0           0           0           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Flurries
Snow
Wind chill            -14 -8 -9-13-14-13-14-11  2 12  5  1  3  1  2  4 20 28 21
Min chill             -17   -13   -14   -15   -17     5     1     1     2    21


Date               Fri 01/19/18  Sat 01/20/18  Sun 01/21/18  Mon 01/22/18
CST 6hrly     00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max            21    42      24    39      24    31      15    26
Temp          21   23 40 39 31   24 38 34 28   24 31 27 22   15 25 23
Dewpt         21   20 29 29 27   23 31 28 26   23 27 23 19   14 17 15
PWind dir          SW     S      SW     N      NE     N       N    NW
Wind char          GN    GN      GN    LT      LT    GN      GN    GN
Avg clouds    FW   FW SC SC SC   SC B1 B2 B2   B2 OV OV OV   B2 B1 SC
PoP 12hr            0     0       0     5      10    70      60    20
Snow                                               C  L  L    C  S

$$
IAZ094-162200-
Lamoni-Decatur IA
40.63N  93.90W Elev. 1125 ft
1106 AM CST Tue Jan 16 2018

Date             Tue 01/16/18            Wed 01/17/18            Thu 01/18/18
CST 3hrly     03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                       9          -1          23          14          37
Temp                    2  7  5  3  0  0 -1  3 16 23 19 16 16 15 14 18 32 37 34
Dewpt                  -4 -1  0 -1 -2 -1 -2  0  5  8  7  9  9  8  8 11 17 22 20
RH                     75 69 79 83 91 95 95 87 61 52 59 73 73 73 76 73 53 54 56
Wind dir               NW NW NW NW  W  W SW SW SW SW SW SW SW SW SW SW SW SW SW
Wind spd               12 10  5  6  5  5  8  9 13 13 10 12 12 12 11 11 13 12 11
Clouds                 B2 B1 SC FW SC FW FW FW CL CL FW FW CL CL CL CL FW FW FW
PoP 12hr                     20           0           0           0           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Flurries                C
Snow
Wind chill            -14 -8 -6 -9-11-12-15-11  2 11  7  2  2  1  0  5 22 29 26
Min chill             -18   -12   -12   -15   -15     6     1    -1    -1    26


Date               Fri 01/19/18  Sat 01/20/18  Sun 01/21/18  Mon 01/22/18
CST 6hrly     00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max            24    45      33    45      31    40      20    33
Temp          26   25 41 43 35   35 45 40 34   33 40 33 25   20 32 30
Dewpt         22   22 28 30 32   33 39 36 33   32 36 29 23   19 20 21
PWind dir          SW    SW      SW     S      NE    NE      NW     W
Wind char          GN    GN      GN    LT      LT    GN      GN    GN
Avg clouds    FW   FW FW SC SC   SC B1 B2 B1   B2 B2 B2 B2   B2 B1 SC
PoP 12hr            0     0       5    10      10    60      50     5
Rain                                               L  L
Snow                                               L  L  C    C

$$
IAZ017-162200-
Mason City-Cerro Gordo IA
43.16N  93.33W Elev. 1189 ft
1106 AM CST Tue Jan 16 2018

Date             Tue 01/16/18            Wed 01/17/18            Thu 01/18/18
CST 3hrly     03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                       5          -4          22          12          33
Temp                    2  3 -1 -4 -4 -2 -2  1 14 22 17 14 15 12 13 16 29 33 26
Dewpt                  -3 -1 -3 -4 -5 -4 -3 -1  7 11 11 11 11 11 12 15 22 25 21
RH                     79 83 91100 95 91 95 91 73 62 77 88 84 96 96 96 75 72 81
Wind dir               NW NW NW  W  W SW SW SW SW SW SW SW SW SW SW SW SW SW SW
Wind spd               11  9  8  6  6  9 10 11 14 14 12 13 13 11  9 10 10  9  8
Wind gust                                         25    24
Clouds                 B1 B1 SC SC SC SC SC FW FW FW FW FW FW FW FW SC FW FW FW
PoP 12hr                     10           0           0           0           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Flurries
Snow
Wind chill            -15-12-15-18-18-18-19-16 -1  9  4 -2  1 -2  1  5 20 25 18
Min chill             -19   -17   -19   -19   -21     3    -3    -2     0    18


Date               Fri 01/19/18  Sat 01/20/18  Sun 01/21/18  Mon 01/22/18
CST 6hrly     00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max            19    39      22    37      22    30      14    23
Temp          20   21 37 36 30   22 36 30 27   22 30 26 22   14 23 18
Dewpt         20   19 28 29 26   22 31 27 25   22 26 24 19   14 15 13
PWind dir          SW     S      SW    NW       N     N       N    NW
Wind char          GN    GN      GN    LT      LT    GN      BZ    GN
Avg clouds    FW   SC SC B1 B1   B1 B2 B2 B2   B2 OV OV OV   B2 B2 B1
PoP 12hr            0     0       0     5      10    60      60    30
Snow                                               C  L  L    C  C

$$
IAZ049-162200-
Marshalltown-Marshall IA
42.11N  92.91W Elev. 972 ft
1106 AM CST Tue Jan 16 2018

Date             Tue 01/16/18            Wed 01/17/18            Thu 01/18/18
CST 3hrly     03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                       8          -3          21          11          33
Temp                    3  6  3 -1 -3 -3 -3  1 13 21 15 14 14 12 11 15 28 33 27
Dewpt                  -1  2 -1 -3 -4 -3 -3 -1  6 10  9  9 10 10  9 13 19 24 20
RH                     83 83 83 91 95100100 91 73 62 77 80 84 91 91 92 68 69 74
Wind dir               NW NW NW NW  W  W SW SW SW SW SW SW SW SW SW SW SW SW SW
Wind spd               12 10  6  6  6  5  6  9 13 13 11 12 13 11  9 10 11 10  8
Wind gust                                         24    23 25
Clouds                 B1 B1 B1 SC SC SC FW FW FW FW FW FW FW CL FW FW SC FW FW
PoP 12hr                     10           0           0           0           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Flurries
Snow
Wind chill            -13 -9 -9-14-16-15-17-14 -2  7  2  0 -1 -2 -2  2 18 25 19
Min chill             -17   -12   -17   -18   -18     0    -2    -3    -3    19


Date               Fri 01/19/18  Sat 01/20/18  Sun 01/21/18  Mon 01/22/18
CST 6hrly     00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max            20    41      26    39      27    36      17    27
Temp          21   22 39 37 32   26 38 36 31   27 36 31 25   17 27 24
Dewpt         20   19 28 28 28   26 33 31 28   27 32 28 22   17 18 17
PWind dir          SW    SW      SW     W      NE    NE       N    NW
Wind char          GN    GN      GN    LT      LT    GN      GN    GN
Avg clouds    FW   FW SC SC SC   SC B1 B2 B2   B2 B2 OV OV   B2 B2 SC
PoP 12hr            0     0       0    10      10    60      70    30
Rain                                                  L
Snow                                               L  L  L    L  C

$$
IAZ086-162200-
Ottumwa-Wapello IA
41.11N  92.45W Elev. 836 ft
1106 AM CST Tue Jan 16 2018

Date             Tue 01/16/18            Wed 01/17/18            Thu 01/18/18
CST 3hrly     03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                      11          -1          23          15          38
Temp                    4  8  7  5  2 -1 -1  5 18 23 16 16 16 15 15 19 34 38 32
Dewpt                  -2  1  1  0 -2 -2 -2  0  6  8  7  9 10  9  9 12 16 21 18
RH                     75 72 76 79 83 95 95 79 59 52 67 73 77 77 77 74 47 50 56
Wind dir               NW NW NW NW  W  W  W SW SW SW SW SW SW SW SW SW SW SW SW
Wind spd               12 10  8  8  5  5  6  9 12 14 10 12 12 12 11 11 13 11  9
Wind gust                                                  23
Clouds                 B2 B1 SC B1 SC SC FW FW FW FW FW FW FW CL CL FW FW FW FW
PoP 12hr                     70           0           0           0           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Flurries                C
Snow
Wind chill            -12 -6 -6 -8-10-13-14 -9  5 11  4  2  2  1  2  6 25 31 24
Min chill             -15   -11   -12   -14   -13     4     2     0     0    23


Date               Fri 01/19/18  Sat 01/20/18  Sun 01/21/18  Mon 01/22/18
CST 6hrly     00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max            24    45      33    45      33    43      23    33
Temp          25   25 43 40 33   35 45 41 35   34 43 39 29   23 32 30
Dewpt         21   22 27 29 32   34 39 37 35   34 38 34 27   22 20 20
PWind dir          SW    SW      SW     S      NE    NE      NW    NW
Wind char          GN    GN      GN    LT      LT    GN      GN    GN
Avg clouds    FW   FW SC SC SC   SC B2 B2 B2   B2 B2 OV B2   B2 B2 SC
PoP 12hr            0     0       5    20      20    70      70    30
Rain                                    S  S    S  L  L  L
Snow                                       S    S  L     L    C  C

$$



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