Point Forecast Matrices
Issued by NWS Des Moines, IA

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Point Forecast Matrices
National Weather Service Des Moines IA
1121 PM CST Tue Jan 16 2018

IAZ060-171000-
Des Moines-Polk IA
41.54N  93.65W Elev. 924 ft
1121 PM CST Tue Jan 16 2018

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

Min/Max                      -1          24          15          38          24
Temp                    0 -1 -1  5 18 24 18 17 17 15 16 18 31 38 32 25 26 24 25
Dewpt                  -5 -5 -4  0  7  9  9 11 11 11 11 12 19 23 20 22 21 21 21
RH                     79 83 87 79 61 52 67 77 77 84 80 77 61 54 61 88 81 88 84
Wind dir               SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW  S
Wind spd                5  4  5  6 13 13  9 10 10  8  8  8 10  9  8  8  8  6  6
Clouds                 FW FW FW FW FW CL FW CL CL CL CL FW FW FW FW FW FW FW FW
PoP 12hr                      0           0           0           0           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Wind chill            -11-11-12 -7  4 12  7  4  5  4  5  8 23 32 26 16 18 16 17
Min chill             -14   -14   -12     6     4     3     4    25    16    15


Date           01/19/18  Sat 01/20/18  Sun 01/21/18  Mon 01/22/18  Tue 01/23/18
CST 6hrly     12 18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     18 00 06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Max/Min          45      30    43      32    42      24    35      19    34
Temp          40 40 33   31 42 40 34   33 41 41 31   24 33 33 23   20 33 29
Dewpt         28 29 29   29 35 33 32   32 35 33 27   22 23 22 21   19 22 20
PWind dir        SW      SW     S       E    NE      NW    NW      SW     W
Wind char        GN      GN    LT      LT    GN      GN    GN      LT    GN
Avg clouds    FW SC SC   SC B1 B1 B2   B2 B2 B2 B2   B2 B2 SC SC   B1 B1 B1
PoP 12hr          0       0    10      10    60      60    20       0     0
Rain                                       C  L  L
Snow                                       C     L    C  S

$$
IAZ039-171000-
Waterloo/Cedar Falls-Black Hawk IA
42.55N  92.40W Elev. 865 ft
1121 PM CST Tue Jan 16 2018

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

Min/Max                      -3          21          13          33          19
Temp                   -2 -3 -1  5 15 21 16 14 14 13 13 15 28 33 27 21 21 19 20
Dewpt                  -6 -6 -4  0  6 10 10 10 11 12 12 14 20 25 20 20 19 19 19
RH                     82 86 87 79 67 62 77 84 88 96 96 96 71 72 74 96 92100 96
Wind dir                W SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW  S
Wind spd                3  4  5  8 13 13 10 10 11  9  9  9 10  9  6  6  8  6  6
Wind gust                                      21
Clouds                 FW FW FW FW FW CL FW CL CL FW FW FW FW FW FW FW SC FW SC
PoP 12hr                      0           0           0           0           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Wind chill            -10-13-14 -9  0  8  4  1  0  1  2  3 19 25 20 12 12 10 11
Min chill             -12   -15   -14     3    -1    -1     1    19    10     9


Date           01/19/18  Sat 01/20/18  Sun 01/21/18  Mon 01/22/18  Tue 01/23/18
CST 6hrly     12 18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     18 00 06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Max/Min          41      25    40      28    38      23    30      15    30
Temp          36 37 31   25 39 34 31   28 37 37 36   23 30 26 19   16 29 25
Dewpt         28 29 28   25 32 31 30   28 33 33 30   23 22 22 19   16 21 18
PWind dir         S      SW     S       E    NE      SW    NW      SW     W
Wind char        GN      GN    LT      LT    GN      GN    GN      LT    GN
Avg clouds    SC SC SC   SC B1 B1 B2   B2 B2 OV OV   B2 B2 B1 SC   B1 B1 B1
PoP 12hr          0       0     5      20    60      80    40       0     5
Rain                                       C  L  D    C
Snow                                    S  C          C  C

$$
IAZ048-171000-
Ames-Story IA
41.99N  93.62W Elev. 936 ft
1121 PM CST Tue Jan 16 2018

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

Min/Max                      -5          23          13          36          20
Temp                   -5 -5 -5  2 17 23 17 16 16 14 13 16 29 36 28 22 22 20 20
Dewpt                  -8 -6 -5  0  7 11 10 11 12 12 11 13 20 25 22 21 21 20 20
RH                     86 95100 91 64 59 73 80 84 92 91 88 69 64 78 96 96100100
Wind dir               SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW  S
Wind spd                5  4  5  9 13 13 10 11 11  9  8  8 10  9  8  8  8  6  6
Wind gust                                   21
Clouds                 FW FW FW FW FW CL FW CL CL CL FW FW FW FW FW FW SC FW FW
PoP 12hr                      0           0           0           0           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Wind chill            -16-17-17-12  3 11  5  3  3  2  2  5 20 29 21 13 13 11 11
Min chill             -19   -19   -18     4     1     1     2    20    11    10


Date           01/19/18  Sat 01/20/18  Sun 01/21/18  Mon 01/22/18  Tue 01/23/18
CST 6hrly     12 18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     18 00 06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Max/Min          43      26    41      28    39      22    33      17    31
Temp          38 36 31   26 40 36 30   29 38 37 30   22 32 30 23   18 30 26
Dewpt         29 29 28   26 32 30 30   29 33 32 26   21 23 22 20   17 21 19
PWind dir         S      SW     W      NE    NE      NW    NW      SW     W
Wind char        GN      GN    LT      LT    GN      GN    GN      LT    GN
Avg clouds    FW SC SC   SC B1 B1 B2   B2 B2 B2 OV   B2 B2 SC B1   B1 B1 B1
PoP 12hr          0       0    10      10    60      60    30       0     0
Rain                                       C  L  L
Snow                                       C     L    C  C

$$
IAZ004-171000-
Estherville-Emmet IA
43.40N  94.75W Elev. 1315 ft
1121 PM CST Tue Jan 16 2018

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

Min/Max                      -4          25          16          38          21
Temp                   -1 -1  2  6 17 25 20 17 17 16 17 19 34 38 31 24 22 21 23
Dewpt                  -4 -4 -3 -1  7 12 13 14 15 15 15 16 23 27 24 22 20 21 21
RH                     87 87 79 72 64 57 74 88 92 96 92 88 64 64 75 92 92100 92
Wind dir               SW SW SW SW SW SW SW SW SW  W SW SW SW SW SW SW SW SW  S
Wind spd               10 11 12 14 17 17 14 16 13 12 11 10 11 10  9  9 10  9 10
Wind gust                                   26
Clouds                 FW FW FW FW CL CL CL CL FW FW SC FW FW FW SC FW SC FW SC
PoP 12hr                      0           0           0           0           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Wind chill            -18-18-16-12  1 12  6  2  3  2  4  8 26 31 23 14 11 11 12
Min chill             -19   -21   -16     6     1     2     3    23    10    10


Date           01/19/18  Sat 01/20/18  Sun 01/21/18  Mon 01/22/18  Tue 01/23/18
CST 6hrly     12 18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     18 00 06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Max/Min          42      23    37      23    30      17    26      11    23
Temp          39 36 27   24 37 31 25   23 30 27 22   17 26 21 16   11 23 18
Dewpt         29 29 26   23 29 28 24   23 27 24 20   17 20 18 15   11 15 12
PWind dir        SW       W     N      NE    NE       N    NW      SW    NW
Wind char        GN      GN    LT      GN    GN      BZ    GN      GN    GN
Avg clouds    SC SC SC   B1 B2 B2 B2   B2 OV OV OV   B2 B1 SC B1   B1 B1 B1
PoP 12hr          0       0     5      10    70      60    30       5     5
Snow                                       C  L  L    L  C

$$
IAZ035-171000-
Fort Dodge-Webster IA
42.55N  94.18W Elev. 1165 ft
1121 PM CST Tue Jan 16 2018

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

Min/Max                      -6          23          14          37          21
Temp                   -6 -5 -3  3 17 23 18 17 17 14 15 15 30 37 30 24 23 21 21
Dewpt                 -10 -8 -4  0  8 12 11 11 13 13 12 14 22 27 23 21 20 20 19
RH                     82 86 95 87 67 62 73 77 84 96 88 96 72 67 75 88 88 96 92
Wind dir               SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW  S
Wind spd                5  5  8 10 14 14 11 12 11  9  8  9 10  9  8  8  8  6  8
Clouds                 FW FW FW FW FW CL FW FW FW FW FW FW FW FW FW FW SC FW SC
PoP 12hr                      0           0           0           0           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Wind chill            -19-17-18-12  2 10  6  4  4  2  4  3 21 30 22 15 14 12 11
Min chill             -20   -20   -18     4     2     2     2    22    13    11


Date           01/19/18  Sat 01/20/18  Sun 01/21/18  Mon 01/22/18  Tue 01/23/18
CST 6hrly     12 18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     18 00 06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Max/Min          43      24    39      25    34      20    30      14    27
Temp          38 37 29   25 38 33 28   25 33 33 28   20 29 27 18   15 26 23
Dewpt         29 29 27   23 31 28 27   25 29 28 24   18 21 20 17   14 20 16
PWind dir        SW      SW     N      NE    NE       N    NW      SW     W
Wind char        GN      GN    LT      LT    GN      GN    GN      GN    GN
Avg clouds    SC SC SC   SC B1 B1 B2   B2 B2 B2 OV   B2 B1 SC B1   B1 B1 B1
PoP 12hr          0       0     5      10    60      60    30       5     0
Snow                                       C  L  L    C  C

$$
IAZ094-171000-
Lamoni-Decatur IA
40.63N  93.90W Elev. 1125 ft
1121 PM CST Tue Jan 16 2018

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

Min/Max                      -2          23          14          37          24
Temp                   -1 -2 -2  4 16 23 19 17 17 15 14 17 31 37 32 26 26 24 24
Dewpt                  -6 -5 -3  0  5  9  8 10  9  9  8 11 16 21 20 22 21 21 21
RH                     79 87 95 83 61 54 61 73 70 77 76 77 53 52 61 85 81 88 88
Wind dir                W SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW
Wind spd                6  5  6  9 13 13 10 12 12 11 11 11 12 11 10 10 10 10 10
Clouds                 FW FW FW FW CL CL FW CL CL CL CL CL FW FW FW FW FW FW FW
PoP 12hr                      0           0           0           0           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Wind chill            -14-14-14-10  3 11  7  3  3  2  0  4 21 29 23 16 16 14 14
Min chill             -14   -15   -15     6     2     0     0    22    15    13


Date           01/19/18  Sat 01/20/18  Sun 01/21/18  Mon 01/22/18  Tue 01/23/18
CST 6hrly     12 18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     18 00 06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Max/Min          45      32    45      34    45      25    37      22    37
Temp          39 39 33   33 44 42 35   37 45 41 30   25 36 34 26   23 37 31
Dewpt         27 29 31   32 38 36 34   35 39 35 27   23 23 23 22   21 24 21
PWind dir        SW      SW     S      SE    SE       W     W      SW     W
Wind char        GN      GN    GN      LT    GN      GN    GN      GN    GN
Avg clouds    FW FW SC   SC SC B1 B1   B2 B2 B2 B2   B2 B1 SC SC   B1 B1 SC
PoP 12hr          0       5    10      10    70      40    10       5     5
Rain                                       C  L  C
Snow                                             C    C

$$
IAZ017-171000-
Mason City-Cerro Gordo IA
43.16N  93.33W Elev. 1189 ft
1121 PM CST Tue Jan 16 2018

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

Min/Max                      -7          21          14          34          19
Temp                   -3 -4 -2  3 15 21 17 15 15 14 15 17 29 34 27 23 22 19 20
Dewpt                  -6 -6 -4  0  7 11 11 12 13 13 14 16 22 26 22 21 20 19 19
RH                     86 91 91 87 70 65 77 88 92 96 96 96 75 72 81 92 92100 96
Wind dir                W SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW  S
Wind spd                8  8  9 11 14 14 13 13 13 11 10 10 10  9  8  8  8  8  8
Wind gust                       21    25 24 26
Clouds                 FW FW FW FW FW FW CL CL FW FW SC FW FW FW SC FW SC FW SC
PoP 12hr                      0           0           0           0           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Wind chill            -18-19-18-14  0  8  4  0  0  0  2  6 20 27 19 14 13  9 10
Min chill             -18   -21   -18     2     0     0     2    18    11     9


Date           01/19/18  Sat 01/20/18  Sun 01/21/18  Mon 01/22/18  Tue 01/23/18
CST 6hrly     12 18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     18 00 06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Max/Min          40      23    37      24    33      19    27      12    25
Temp          36 35 29   24 36 30 26   24 32 32 31   19 27 22 17   12 25 19
Dewpt         29 29 26   23 30 28 26   24 28 28 25   19 20 19 15   12 18 15
PWind dir         S      SW     W      NE    NE       N    NW      SW     W
Wind char        GN      GN    LT      LT    GN      GN    BZ      GN    GN
Avg clouds    SC SC SC   SC B1 B2 B2   B2 B2 OV OV   OV B2 B1 B1   B1 B1 B1
PoP 12hr          0       0     5      10    60      70    50       5     5
Snow                                       C  L  L    C  C

$$
IAZ049-171000-
Marshalltown-Marshall IA
42.11N  92.91W Elev. 972 ft
1121 PM CST Tue Jan 16 2018

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

Min/Max                      -4          21          12          33          20
Temp                   -3 -4 -3  3 14 21 15 14 14 12 12 14 27 33 27 22 22 20 20
Dewpt                  -6 -6 -4  0  6 10  9 10 11 11 10 12 19 23 20 20 19 20 19
RH                     86 91 95 87 70 62 77 84 88 96 91 92 71 66 74 92 88100 96
Wind dir                W SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW  S
Wind spd                6  5  6  9 13 14 11 12 12 10  9 10 11 10  8  8  9  8  8
Wind gust                                   24 25
Clouds                 FW FW FW FW FW CL FW CL CL FW FW FW FW FW FW FW SC FW SC
PoP 12hr                      0           0           0           0           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Wind chill            -16-16-17-12 -1  8  2  1  0 -1  0  2 17 26 19 13 12 10 10
Min chill             -17   -18   -18     0    -2    -2     0    18    11    10


Date           01/19/18  Sat 01/20/18  Sun 01/21/18  Mon 01/22/18  Tue 01/23/18
CST 6hrly     12 18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     18 00 06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Max/Min          41      26    40      28    39      22    32      16    30
Temp          36 36 32   26 39 35 32   28 38 37 33   22 31 28 22   17 30 24
Dewpt         28 28 29   26 33 31 30   28 34 33 28   21 22 22 19   17 22 18
PWind dir        SW      SW     S       E    NE      NW    NW      SW     W
Wind char        GN      GN    LT      LT    GN      GN    BZ      GN    GN
Avg clouds    FW SC SC   SC B1 B1 B2   B2 B2 OV OV   B2 B2 B1 B1   B1 B1 B1
PoP 12hr          0       0    10      20    60      70    30       0     0
Rain                                       C  L  L
Snow                                    S  C     L    C  C

$$
IAZ086-171000-
Ottumwa-Wapello IA
41.11N  92.45W Elev. 836 ft
1121 PM CST Tue Jan 16 2018

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

Min/Max                      -2          24          15          37          24
Temp                    0 -1 -1  5 18 24 16 16 16 15 15 18 31 37 31 26 26 24 24
Dewpt                  -6 -5 -3  1  7  9  8 10 11 10  9 11 17 21 19 22 21 22 21
RH                     75 83 91 83 61 52 70 77 80 80 77 73 56 52 61 85 81 92 88
Wind dir                W  W SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW
Wind spd                6  5  6  9 13 13 10 12 12 12 11 11 12 11  9  9  9  9  9
Wind gust                                   23
Clouds                 FW FW FW FW FW FW FW CL CL CL FW FW FW FW FW FW FW FW FW
PoP 12hr                      0           0           0           0           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Wind chill            -13-13-14 -9  4 12  4  2  2  1  2  6 22 30 23 17 17 14 14
Min chill             -14   -15   -14     4     1     1     2    20    14    13


Date           01/19/18  Sat 01/20/18  Sun 01/21/18  Mon 01/22/18  Tue 01/23/18
CST 6hrly     12 18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     18 00 06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Max/Min          45      32    45      35    48      27    36      21    37
Temp          40 39 32   34 44 42 36   37 46 47 38   27 34 35 26   22 37 30
Dewpt         27 29 31   33 39 37 35   37 40 40 33   26 24 24 22   22 26 22
PWind dir        SW      SW     S      SE    SE      SW     W      SW     W
Wind char        GN      GN    GN      LT    GN      GN    BZ      GN    GN
Avg clouds    FW FW SC   SC B1 B1 B2   B2 B2 OV B2   B2 B2 B1 SC   B1 B1 B1
PoP 12hr          0       5    20      20    60      60    20       5     5
Rain                            S  S    S  C  L  L    C
Snow                               S    S             C  S

$$



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