Point Forecast Matrices
Issued by NWS Des Moines, IA

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Point Forecast Matrices
National Weather Service Des Moines IA
806 AM CST Sun Jan 21 2018

IAZ060-212200-
Des Moines-Polk IA
41.54N  93.65W Elev. 924 ft
806 AM CST Sun Jan 21 2018

Date             Sun 01/21/18            Mon 01/22/18            Tue 01/23/18
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                      44          39          42          24          34
Temp                39 41 42 40 40 40 40 39 38 41 40 36 31 29 27 25 25 31 34 30
Dewpt               37 38 39 38 37 37 37 37 36 36 34 31 26 24 23 20 19 21 22 22
RH                  92 89 89 92 89 89 89 92 92 82 79 82 81 81 85 81 78 66 61 72
Wind dir             E  E  E NE NE NE  E  E NE  N  N NW NW NW NW NW NW NW  W  W
Wind spd             6  8  9  8  9 10  8  8  6  8 11 17 20 19 18 17 11 10  9  8
Wind gust                                            27 32 32
Clouds              OV OV OV OV OV OV OV B2 B2 B2 OV OV OV OV B2 B1 FW SC SC B1
PoP 12hr                     60          80          50          50           0
QPF 12hr                   0.04        0.30        0.07        0.03           0
Snow 12hr                 00-00       00-00       00-00
Drizzle              C  C  L              C  C        C
Frzg drzl                                                S
Rain                          L  D  D  L        C  C
Snow                                                  S  C
Tstms                            S
Obvis               PF PF PF PF PF PF PF PF
Wind chill                      34 33    33    35 33 26 18 16 15 12 14 23 27 22
Min chill              33    33    32    32    33    24    15    11    11    22


Date               Wed 01/24/18  Thu 01/25/18  Fri 01/26/18  Sat 01/27/18
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            22    38      25    47      34    51      33    41
Temp          25   22 37 34 28   27 46 42 37   35 50 47 41   33 40 38
Dewpt         23   20 22 22 22   22 28 29 29   29 34 35 35   29 27 24
PWind dir           W     W       S     S       S     S      SW    NW
Wind char          LT    LT      LT    GN      GN    BZ      GN    GN
Avg clouds    SC   FW FW FW SC   SC SC SC FW   SC SC B1 B1   B1 B1 B1
PoP 12hr            0     0       0     0       0    10      40    10
Rain                                                     C    C
Snow                                                          C

$$
IAZ039-212200-
Waterloo/Cedar Falls-Black Hawk IA
42.55N  92.40W Elev. 865 ft
806 AM CST Sun Jan 21 2018

Date             Sun 01/21/18            Mon 01/22/18            Tue 01/23/18
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                      39          35          41          22          29
Temp                35 36 38 36 36 37 37 36 36 40 40 36 33 31 28 24 22 28 29 24
Dewpt               34 35 36 36 35 36 36 35 35 37 36 32 28 25 23 20 18 20 21 19
RH                  96 96 92100 96 96 96 96 96 89 85 85 82 78 81 84 84 71 72 81
Wind dir            NE NE NE NE NE NE NE NE NE NE  N  N  N  N NW NW NW NW NW NW
Wind spd             6  8 10  9 12 14 14 16 12  9  9 13 18 19 19 18 13 12 11  8
Wind gust                          25 27 27 23          29 29
Clouds              OV OV OV OV OV OV OV OV OV B2 OV OV OV OV OV B2 SC SC FW B1
PoP 12hr                     50         100          90          50           0
QPF 12hr                   0.02        0.41        0.20        0.04           0
Snow 12hr                 00-00       00-00       00-00
Drizzle              S  C  C                    C  C  C  S
Frzg drzl                                                S
Rain                          C  L  D  D  D  D
Snow                                                     C  C  C
Tstms                               S
Obvis               PF PF PF PF PF PF PF PF
Wind chill          28 30 31 29 28 28 28 27 28 34 34 27 22 18 15 10  9 17 19 15
Min chill              26    29    26    25    25    27    17     9     8    13


Date               Wed 01/24/18  Thu 01/25/18  Fri 01/26/18  Sat 01/27/18
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            17    32      18    40      28    47      30    37
Temp          20   17 31 27 21   20 38 36 33   29 46 43 40   30 37 32
Dewpt         19   17 20 20 18   19 27 29 29   28 34 35 35   28 28 24
PWind dir          NW    NW       S    SE       S     S       S     W
Wind char          LT    LT      LT    GN      GN    BZ      GN    GN
Avg clouds    B1   B1 SC SC SC   SC SC SC SC   SC SC B1 B2   B2 B2 B2
PoP 12hr            0     0       0     0       0    10      40    10
Rain                                                     C    C
Snow                                                          C

$$
IAZ048-212200-
Ames-Story IA
41.99N  93.62W Elev. 936 ft
806 AM CST Sun Jan 21 2018

Date             Sun 01/21/18            Mon 01/22/18            Tue 01/23/18
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                      39          36          39          23          32
Temp                36 37 38 37 37 37 38 37 37 39 38 34 31 28 27 24 24 30 31 28
Dewpt               36 37 37 36 36 36 36 36 35 36 34 30 26 24 22 20 19 21 22 21
RH                 100100 96 96 96 96 92 96 92 89 85 85 81 85 81 84 81 69 69 75
Wind dir            NE NE NE NE NE NE NE NE NE  N  N  N NW NW NW NW NW NW NW NW
Wind spd             6  9 10  8 11 13 12 11  9 10 14 18 23 23 20 18 12 12 10  9
Wind gust                          25 24          25 28 35
Clouds              OV OV OV OV OV OV OV OV OV B2 OV OV OV OV B2 B1 FW SC SC B1
PoP 12hr                     60          90          60          50           0
QPF 12hr                   0.03        0.32        0.13        0.03           0
Snow 12hr                 00-00       00-00       00-00
Drizzle              C  C  C                          C
Frzg drzl                                                S
Rain                          L  L  D  D  L  L  C  C
Snow                                                  S  C  S  S
Tstms                            S  S
Obvis               PF PF PF PF PF PF PF PF
Wind chill          30 30 31 31 29 29 30 29 30 32 29 23 18 15 13 10 12 20 23 19
Min chill              29    29    28    28    29    21    14    10     9    18


Date               Wed 01/24/18  Thu 01/25/18  Fri 01/26/18  Sat 01/27/18
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    34      21    44      31    49      31    39
Temp          25   20 33 30 25   23 43 38 35   32 48 45 39   31 38 36
Dewpt         22   19 21 22 21   21 28 29 29   28 35 36 34   27 28 24
PWind dir          NW     W       S     S       S     S      SW     W
Wind char          LT    LT      LT    GN      GN    BZ      GN    GN
Avg clouds    SC   SC FW FW SC   SC SC SC SC   SC SC B1 B2   B1 B1 B1
PoP 12hr            0     0       0     0       0    20      40    10
Rain                                                  S  C    S
Snow                                                          S

$$
IAZ004-212200-
Estherville-Emmet IA
43.40N  94.75W Elev. 1315 ft
806 AM CST Sun Jan 21 2018

Date             Sun 01/21/18            Mon 01/22/18            Tue 01/23/18
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                      35          30          31          16          24
Temp                29 33 34 33 32 33 32 31 31 30 29 27 26 23 20 17 16 21 24 21
Dewpt               28 30 31 31 31 31 30 30 30 28 26 25 23 20 17 15 13 17 19 19
RH                  96 89 89 92 96 92 92 96 96 92 88 92 88 88 88 92 88 84 81 92
Wind dir            NE NE  N NE  N NE NE NE  N  N  N  N  N  N NW NW NW NW  W  W
Wind spd             9 13 17 17 18 24 25 27 25 24 28 28 24 20 17 17 10 10  9  9
Wind gust                       29    37 40 37 35 39 40
Clouds              OV OV OV OV OV OV OV OV OV OV OV OV OV B2 B1 B1 FW SC B2 B1
PoP 12hr                     20         100          90          60           0
QPF 12hr                      0        0.31        0.81        0.08           0
Snow 12hr                 00-00           2           9
Frzg rain                              C  S              C
Snow                          C  L  D  D  D  D  D  D  L  L
Obvis                           PF PF PF BS BS BS BS BS BS BS
Wind chill          20 23 23 22 20 20 18 17 17 16 14 11 11  8  5  1  4 10 14 10
Min chill              20    21    19    17    16    11     8     1     1     9
Blizzard                         W  W  W  W  W  W  W  W  W


Date               Wed 01/24/18  Thu 01/25/18  Fri 01/26/18  Sat 01/27/18
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            14    26      14    35      27    41      25    31
Temp          17   14 25 21 16   16 31 35 33   28 40 39 31   25 31 27
Dewpt         16   14 19 16 14   15 25 28 27   27 33 33 27   22 23 21
PWind dir           W     W       S    SE       S     S      SW    NW
Wind char          GN    LT      LT    GN      GN    BZ      BZ    GN
Avg clouds    B1   SC SC SC SC   SC SC SC SC   SC SC SC B1   B1 B2 B2
PoP 12hr            0     0       0     0       0    10      10    10

$$
IAZ035-212200-
Fort Dodge-Webster IA
42.55N  94.18W Elev. 1165 ft
806 AM CST Sun Jan 21 2018

Date             Sun 01/21/18            Mon 01/22/18            Tue 01/23/18
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                      35          34          36          20          28
Temp                31 34 33 35 35 35 35 35 34 35 34 31 28 27 24 21 20 26 28 25
Dewpt               31 34 33 34 34 34 34 34 33 33 30 27 24 22 20 18 16 19 20 20
RH                 100100100 96 96 96 96 96 96 92 85 85 85 81 84 88 84 74 71 81
Wind dir            NE NE NE NE NE NE NE NE NE  N  N  N  N  N NW NW NW NW  W  W
Wind spd             6 11 11 14 16 18 18 16 13 14 20 23 23 20 18 18 11 10  9  8
Wind gust                             31 27 25 27 33 36 34 31
Clouds              OV OV OV OV OV OV OV OV OV OV OV OV OV OV B1 B1 FW SC B1 B1
PoP 12hr                     50         100          80          60           0
QPF 12hr                   0.03        0.37        0.38        0.05           0
Snow 12hr                 00-00       00-00           1
Drizzle                 C  C
Rain                          L  L  D  D  D  D  L  S
Snow                                         C  C  L  L  L
Obvis               PF PF PF PF PF PF PF PF       BS BS BS BS
Wind chill          25 26 24 25 25 24 24 25 25 25 23 18 14 13 10  6  8 16 19 16
Min chill              24    22    23    23    24    17    12     5     6    15


Date               Wed 01/24/18  Thu 01/25/18  Fri 01/26/18  Sat 01/27/18
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            17    30      19    40      30    46      27    35
Temp          20   17 29 26 22   21 38 37 34   31 45 42 34   27 35 31
Dewpt         19   15 20 19 19   18 29 29 28   28 36 35 31   24 26 22
PWind dir           W     W      SE    SE       S     S      SW     W
Wind char          LT    LT      LT    GN      GN    BZ      GN    GN
Avg clouds    SC   SC SC SC SC   SC SC SC SC   SC SC B1 B1   B1 B1 B2
PoP 12hr            0     0       0     0       0    20      40    10
Rain                                                  S  C
Snow                                                     C

$$
IAZ094-212200-
Lamoni-Decatur IA
40.63N  93.90W Elev. 1125 ft
806 AM CST Sun Jan 21 2018

Date             Sun 01/21/18            Mon 01/22/18            Tue 01/23/18
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                      48          38          42          24          36
Temp                42 45 47 44 45 45 44 41 40 42 39 33 29 28 26 25 25 33 36 31
Dewpt               40 43 45 44 42 43 42 40 39 37 34 31 26 24 23 21 20 22 24 23
RH                  93 93 93100 89 93 93 96 96 82 82 92 88 85 88 84 81 63 61 72
Wind dir             E SE SE  E  E  E SE SE  S SW  W NW NW NW NW NW NW NW  W  W
Wind spd             5  8  8  8  8  8  6  6  8  9 12 18 21 20 18 17 12 11 11  9
Wind gust                                               33 31    27
Clouds              OV OV OV OV OV OV OV B1 B2 B2 OV OV OV OV B1 SC FW FW SC SC
PoP 12hr                     50          80          50          40           0
QPF 12hr                   0.03        0.26        0.04           0           0
Snow 12hr                 00-00       00-00       00-00
Drizzle              C  C  C        C  C  S  S  C  C  C
Rain                          L  D  C  C        C  C
Snow                                                     C
Tstms                            S
Obvis               PF PF PF PF PF PF PF PF
Wind chill                                     36 31 22 16 15 13 12 14 24 28 23
Min chill              36    39    39    36    33    21    14    11    11    23


Date               Wed 01/24/18  Thu 01/25/18  Fri 01/26/18  Sat 01/27/18
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            23    41      26    48      35    51      34    40
Temp          26   23 40 36 29   28 46 44 38   36 50 48 43   34 39 37
Dewpt         24   22 23 23 23   23 28 29 28   29 34 36 35   30 28 25
PWind dir           W     W       S     S       S     S      SW    NW
Wind char          LT    GN      LT    GN      GN    BZ      GN    GN
Avg clouds    FW   FW FW FW SC   SC FW FW FW   SC SC B1 B2   B1 B1 B1
PoP 12hr            0     0       0     0       0    10      50    10
Rain                                                     C    C
Snow                                                          C

$$
IAZ017-212200-
Mason City-Cerro Gordo IA
43.16N  93.33W Elev. 1189 ft
806 AM CST Sun Jan 21 2018

Date             Sun 01/21/18            Mon 01/22/18            Tue 01/23/18
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                      35          32          35          19          25
Temp                29 33 34 33 34 34 34 34 33 35 33 31 27 25 22 20 19 23 24 20
Dewpt               28 32 33 32 33 34 33 33 33 33 31 28 24 22 19 17 15 18 18 17
RH                  96 96 96 96 96100 96 96100 92 92 88 88 88 88 88 84 81 77 88
Wind dir            NE NE NE NE NE NE NE NE NE  N  N  N  N  N NW NW NW NW NW  W
Wind spd             6 10 11 13 13 18 19 19 19 16 19 23 23 21 19 18 12 11  9  8
Wind gust                             33 32 32    29 33 34
Clouds              OV OV OV OV OV OV OV OV OV OV OV OV OV OV B2 B1 SC SC SC B2
PoP 12hr                     30         100          90          70           0
QPF 12hr                      0        0.34        0.51        0.07           0
Snow 12hr                 00-00       00-00           2
Drizzle                    S
Frzg rain                                             S
Rain                          C  L  D  D  D  D  D  C
Snow                                         L  D  D  L  L  S  S
Obvis               PF PF PF PF PF PF PF PF       BS BS BS BS BS BS
Wind chill          22 25 26 23 24 23 23 22 22 25 21 18 13 11  7  5  6 12 15 10
Min chill              20    23    23    21    21    17    10     5     4     9


Date               Wed 01/24/18  Thu 01/25/18  Fri 01/26/18  Sat 01/27/18
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            14    27      14    37      28    43      27    34
Temp          17   15 27 20 15   17 35 33 33   29 42 40 35   27 34 28
Dewpt         16   15 19 17 14   16 26 27 28   27 34 35 32   24 26 22
PWind dir           W     W       S    SE       S     S      SW     W
Wind char          LT    LT      LT    GN      GN    BZ      GN    GN
Avg clouds    B1   B1 SC SC SC   SC SC SC SC   SC SC B1 B2   B2 B2 B2
PoP 12hr            5     0       0     0       0    20      30    10
Rain                                                  S  C    S
Snow                                                          S

$$
IAZ049-212200-
Marshalltown-Marshall IA
42.11N  92.91W Elev. 972 ft
806 AM CST Sun Jan 21 2018

Date             Sun 01/21/18            Mon 01/22/18            Tue 01/23/18
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                      40          35          41          21          30
Temp                36 37 39 36 36 37 37 37 36 39 40 35 31 29 26 23 22 28 30 25
Dewpt               36 37 37 36 36 36 37 35 35 37 35 31 28 24 23 20 18 20 21 20
RH                 100100 92100100 96100 92 96 92 82 85 88 81 88 88 84 71 69 81
Wind dir             E  E NE NE NE NE NE NE NE  N  N  N NW NW NW NW NW NW NW NW
Wind spd             6 10 11 10 12 16 14 12 10  9 11 16 21 21 20 18 13 12 11  8
Wind gust                                            26 33 32
Clouds              OV OV OV OV OV OV OV OV OV B2 OV OV OV OV B2 B1 SC SC SC B1
PoP 12hr                     60         100          70          50           0
QPF 12hr                   0.03        0.38        0.15        0.03           0
Snow 12hr                 00-00       00-00       00-00
Drizzle              C  C  C                    C  C  C
Frzg drzl                                                S
Rain                          L  L  D  D  L  L
Snow                                                     C  S  S
Tstms                               S
Obvis               PF PF PF PF PF PF PF PF
Wind chill          30 30 31 29 28 28 29 29 29 33 33 25 18 16 12  8  9 17 20 16
Min chill              29    28    27    27    27    24    14     7     7    15


Date               Wed 01/24/18  Thu 01/25/18  Fri 01/26/18  Sat 01/27/18
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    32      19    42      29    48      30    38
Temp          22   19 31 28 23   21 40 37 34   30 47 44 40   30 37 35
Dewpt         20   19 21 21 19   20 28 28 29   28 34 34 35   28 27 24
PWind dir          NW     W       S    SE       S     S      SW     W
Wind char          LT    LT      LT    GN      GN    BZ      GN    GN
Avg clouds    SC   SC SC SC SC   SC SC SC SC   SC SC B1 B2   B2 B2 B2
PoP 12hr            0     0       0     0       0    10      40    10
Rain                                                     C    C
Snow                                                          C

$$
IAZ086-212200-
Ottumwa-Wapello IA
41.11N  92.45W Elev. 836 ft
806 AM CST Sun Jan 21 2018

Date             Sun 01/21/18            Mon 01/22/18            Tue 01/23/18
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                      47          43          47          26          36
Temp                41 43 44 45 45 46 46 44 43 46 46 40 35 32 30 27 26 33 36 31
Dewpt               38 42 44 42 43 43 43 43 40 39 38 35 31 28 24 23 21 22 24 22
RH                  89 96100 89 93 89 89 96 89 76 73 82 85 85 78 85 81 63 61 69
Wind dir            SE SE  E  E  E  E  E SE  S  S SW  W NW NW NW NW NW NW NW  W
Wind spd             6  9  8  8  8 11  9  8  8  9  9 12 19 19 20 19 14 13 12  9
Wind gust                                               29 31 31
Clouds              OV OV OV OV OV OV OV B1 B1 B1 B2 OV OV OV OV B2 FW SC FW SC
PoP 12hr                     50          80          40          50           0
QPF 12hr                   0.03        0.35        0.01        0.04           0
Snow 12hr                 00-00       00-00       00-00
Drizzle              C  C  C              C  C  C  C  C  C
Rain                          C  D  L  C
Snow                                                     C  S  S
Tstms                            S  S
Obvis               PF PF PF PF PF  F PF PF
Wind chill                                           33 24 20 17 14 14 23 27 23
Min chill              36    38    38    39    38    33    19    14    13    22


Date               Wed 01/24/18  Thu 01/25/18  Fri 01/26/18  Sat 01/27/18
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            23    38      23    47      34    52      37    42
Temp          26   23 37 34 25   26 46 40 37   36 51 49 48   39 40 39
Dewpt         23   22 23 23 21   23 28 29 29   30 33 36 38   34 30 27
PWind dir           W     W       S     S       S     S       S     W
Wind char          LT    GN      LT    GN      GN    BZ      GN    GN
Avg clouds    SC   SC FW FW SC   SC SC SC FW   FW SC B1 B2   B2 B1 B1
PoP 12hr            0     0       0     0       0    10      50    30
Rain                                                     C    C  C

$$



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