Point Forecast Matrices
Issued by NWS Des Moines, IA

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Point Forecast Matrices
National Weather Service Des Moines IA
352 AM CST Mon Jan 22 2018

IAZ060-222200-
Des Moines-Polk IA
41.54N  93.65W Elev. 924 ft
352 AM CST Mon Jan 22 2018

Date             Mon 01/22/18            Tue 01/23/18            Wed 01/24/18
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                      42          26          34          23          40
Temp             40 40 42 39 37 34 31 30 26 26 30 34 28 26 24 25 23 25 35 40 33
Dewpt            39 38 39 37 34 30 27 24 22 21 22 23 23 23 23 24 23 23 25 27 25
RH               96 92 89 92 89 85 85 78 85 81 72 64 81 88 96 96100 92 66 59 72
Wind dir         NE  E  E  N  N  N  N NW NW NW NW NW NW NW NW  W  W  W  W  W  S
Wind spd         11 10  9 10 16 21 21 20 13 12 11 10  8  6  5  5  5  5  6  5  4
Wind gust                    26 32 32    26 23
Clouds           OV OV OV OV OV OV OV B2 B2 B1 SC FW B1 B1 B2 B1 SC FW FW FW SC
PoP 12hr                     90          70           0           5           0
QPF 12hr                   0.17        0.04           0           0           0
Snow 12hr                 00-00           T       00-00
Drizzle                       L  S
Rain              D  D  C  L
Snow                             L  C
Tstms
Obvis            PF PF PF PF PF PF PF BS
Wind chill       33 34 36 33 28 22 18 17 15 14 21 26 20 19 18 18 16 18 29
Min chill        31    33    26    18    13    13    19    17    15    15    29


Date               Thu 01/25/18  Fri 01/26/18  Sat 01/27/18  Sun 01/28/18
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            26    49      35    52      30    41      20    32
Temp          29   26 47 44 39   36 51 47 36   30 41 34 27   20 32 26
Dewpt         25   25 29 30 29   29 36 36 31   28 26 22 20   14 14 12
PWind dir           S     S       S     S       W     W      NW    NW
Wind char          LT    GN      GN    BZ      GN    GN      GN    GN
Avg clouds    SC   SC SC FW FW   FW SC B1 B1   B1 SC SC SC   SC SC SC
PoP 12hr            0     0       0    10      10     5       5     0

$$
IAZ039-222200-
Waterloo/Cedar Falls-Black Hawk IA
42.55N  92.40W Elev. 865 ft
352 AM CST Mon Jan 22 2018

Date             Mon 01/22/18            Tue 01/23/18            Wed 01/24/18
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                      42          24          29          18          34
Temp             39 38 41 41 38 35 34 29 26 23 27 28 23 22 21 21 18 22 31 34 29
Dewpt            38 37 39 39 37 34 32 26 22 20 20 22 20 21 20 21 18 21 23 25 24
RH               96 96 92 92 96 96 92 88 85 88 74 78 88 96 96100100 96 72 69 81
Wind dir         NE NE NE NE  N  N  N  N NW NW NW NW NW NW NW  W  W  W  W  W SW
Wind spd         21 19 14 11 11 16 20 21 16 14 12 11  9  6  4  4  4  4  5  6  3
Wind gust        32 31             31    27 25
Clouds           OV OV OV OV OV OV OV B2 B2 B1 SC SC B1 B2 B2 B2 B1 SC SC SC B1
PoP 12hr                     90          70           5           5           0
QPF 12hr                   0.53        0.06           0           0           0
Snow 12hr                 00-00           T       00-00
Drizzle                 C  C  L  L  S
Rain              L  D  C  C  L  L
Snow                             S  C  S
Obvis            PF PF PF PF PF PF PF PF
Wind chill       29 28 33 35 30 25 22 16 13  9 16 18 13 14 15 14 11 16 25 28
Min chill        27    27    29    21    12     8    11    11    11    11    23


Date               Thu 01/25/18  Fri 01/26/18  Sat 01/27/18  Sun 01/28/18
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    43      30    48      27    38      18    27
Temp          25   22 41 39 34   31 47 42 35   27 38 31 25   18 27 20
Dewpt         24   22 29 29 30   28 35 36 32   27 27 23 19   13 14 11
PWind dir           S    SE       S     S      SW     W      NW    NW
Wind char          LT    GN      GN    BZ      GN    GN      GN    GN
Avg clouds    B1   SC SC SC FW   FW SC SC B1   B1 B1 SC B1   B1 B1 SC
PoP 12hr            0     0       0    10      20    10       5     5
Rain                                       S

$$
IAZ048-222200-
Ames-Story IA
41.99N  93.62W Elev. 936 ft
352 AM CST Mon Jan 22 2018

Date             Mon 01/22/18            Tue 01/23/18            Wed 01/24/18
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          25          31          21          37
Temp             38 37 39 38 35 33 31 29 25 24 27 31 26 26 24 24 21 24 33 37 32
Dewpt            36 36 38 36 34 30 27 25 22 21 22 23 22 23 22 23 21 22 24 26 25
RH               92 96 96 92 96 89 85 85 88 88 81 72 85 88 92 96100 92 69 64 75
Wind dir         NE NE NE  N  N  N NW NW NW NW NW NW NW NW NW  W  W  W  W  W  S
Wind spd         17 14 12 14 19 24 25 23 17 14 12 11  8  8  5  5  5  5  5  5  4
Wind gust                       34 35    28
Clouds           OV OV OV OV OV OV OV B2 B2 B1 SC SC B1 B2 B2 B1 SC FW SC FW SC
PoP 12hr                     90          70           0           5           0
QPF 12hr                   0.32        0.04           0           0           0
Snow 12hr                 00-00           T       00-00
Drizzle                       L  S
Frzg drzl                        S
Rain              D  D  C  L
Snow                          S  L  C
Tstms
Obvis            PF PF PF PF PF PF PF PF
Wind chill       29 28 32 29 24 20 18 15 12 11 17 21 18 17 16 17 13 17
Min chill        28    28    24    17    12    10    16    14    12    12    26


Date               Thu 01/25/18  Fri 01/26/18  Sat 01/27/18  Sun 01/28/18
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    46      31    50      29    40      19    29
Temp          27   23 44 42 37   32 49 44 36   29 40 32 27   19 29 24
Dewpt         25   23 29 30 29   29 36 35 31   27 26 22 19   13 14 12
PWind dir           S     S       S     S       W     W      NW    NW
Wind char          LT    GN      GN    BZ      GN    GN      GN    GN
Avg clouds    SC   SC SC FW FW   FW SC B1 B1   B1 SC SC SC   SC SC SC
PoP 12hr            0     0       0     5      10     5       5     0

$$
IAZ004-222200-
Estherville-Emmet IA
43.40N  94.75W Elev. 1315 ft
352 AM CST Mon Jan 22 2018

Date             Mon 01/22/18            Tue 01/23/18            Wed 01/24/18
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                      33          18          26          13          29
Temp             33 32 31 30 28 26 23 22 18 17 23 26 23 22 18 17 13 15 24 29 21
Dewpt            31 30 30 29 28 25 21 20 18 16 20 22 21 20 17 17 13 15 21 23 21
RH               92 92 96 96100 96 92 92100 96 88 85 92 92 96100100100 88 78100
Wind dir          N  N  N  N  N  N  N NW NW NW NW  W  W  W  W  W  W  W SW SW  S
Wind spd         31 33 32 32 31 28 23 19 17 11 10  9  8  6  6  6  5  4  6  6  6
Wind gust        42 46 43 42 42 39
Clouds           OV OV OV OV OV OV B2 B1 B1 SC B1 B1 B2 B1 B1 SC SC SC SC SC B1
PoP 12hr                    100         100           5          10           0
QPF 12hr                   1.18        0.09           0           0           0
Snow 12hr                    13           1       00-00
Frzg drzl                           S
Rain              S
Snow              D  D  D  D  D  D  C
Obvis             F  F  F  F  F BS PF PF
Wind chill       19 17 16 14 12 10  7  7  3  4 12 17 14 13  9  7  4  8 16 22 12
Min chill        19    16    11     7     3     3    13     8     3     4    12
Blizzard          W  W  W  W  W  W


Date               Thu 01/25/18  Fri 01/26/18  Sat 01/27/18  Sun 01/28/18
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    37      28    41      24    31      11    22
Temp          18   18 34 36 32   29 41 37 32   24 31 26 19   11 21 17
Dewpt         18   18 28 29 28   27 33 31 27   22 23 20 14    9 11 10
PWind dir           S     S       S     S       W     W      NW    NW
Wind char          LT    GN      GN    BZ      GN    GN      GN    GN
Avg clouds    B1   SC SC SC SC   SC SC SC B1   B1 B1 B1 B1   SC SC SC
PoP 12hr            0     0       0     5      10    10       5     0

$$
IAZ035-222200-
Fort Dodge-Webster IA
42.55N  94.18W Elev. 1165 ft
352 AM CST Mon Jan 22 2018

Date             Mon 01/22/18            Tue 01/23/18            Wed 01/24/18
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          22          28          17          33
Temp             35 34 34 34 31 29 27 25 22 20 24 28 24 23 21 21 17 19 28 33 28
Dewpt            34 33 34 32 31 28 26 22 21 19 20 22 21 21 20 20 17 18 23 25 23
RH               96 96100 92100 96 96 88 96 96 84 78 88 92 96 96100 96 81 72 81
Wind dir         NE NE NE  N  N  N  N  N NW NW NW NW  W  W  W  W  W  W  W SW  S
Wind spd         25 24 23 21 24 24 21 19 16 12 10  9  6  6  4  5  5  5  5  5  5
Wind gust                          32
Clouds           OV OV OV OV OV OV OV B2 B1 SC SC B1 B2 B2 B2 B1 SC SC SC SC B1
PoP 12hr                    100          90           0           5           0
QPF 12hr                   0.74        0.06           0           0           0
Snow 12hr                     2           1       00-00
Rain              D  D  D  D
Snow                 D  S  D  D  D  C
Obvis            PF PF PF PF PF PF PF PF
Wind chill       23 22 22 22 18 15 13 11  9  7 14 19 16 15 15 13  9 11 22 27 22
Min chill        23    22    18    13     8     7    15    12     9     9    20
Winter Weath      Y  Y  Y  Y  Y  Y


Date               Thu 01/25/18  Fri 01/26/18  Sat 01/27/18  Sun 01/28/18
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    43      31    46      26    35      15    25
Temp          23   22 41 40 35   32 45 41 33   26 35 28 22   15 25 21
Dewpt         22   21 30 30 29   28 36 33 29   24 25 21 16   11 13 11
PWind dir           S     S       S     S       W     W      NW    NW
Wind char          LT    GN      GN    BZ      GN    GN      GN    GN
Avg clouds    SC   SC SC SC FW   FW SC SC B1   B1 SC B1 SC   SC SC SC
PoP 12hr            0     0       0     5      10     5       5     0

$$
IAZ094-222200-
Lamoni-Decatur IA
40.63N  93.90W Elev. 1125 ft
352 AM CST Mon Jan 22 2018

Date             Mon 01/22/18            Tue 01/23/18            Wed 01/24/18
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                      45          27          36          23          41
Temp             46 43 42 39 36 33 31 29 27 26 32 36 28 28 24 24 23 27 36 41 34
Dewpt            45 41 40 37 35 30 27 25 23 22 23 24 24 24 23 24 23 24 26 27 25
RH               96 93 93 92 96 89 85 85 85 85 69 61 85 85 96100100 88 67 57 69
Wind dir         SE  S  S  W NW NW NW NW NW NW NW NW  W  W  W  W  W  W  W SW  S
Wind spd          9 10 10  9 14 23 23 20 17 14 12 11  8  8  6  8  6  6  8  8  5
Wind gust                       34 33    27
Clouds           OV OV OV OV OV OV OV B2 B2 SC FW FW SC B1 SC B1 SC FW FW FW SC
PoP 12hr                     70          70           0           0           0
QPF 12hr                   0.06        0.01           0           0           0
Snow 12hr                 00-00       00-00       00-00
Drizzle           L  S        L
Rain                    C  L
Snow                          S  C  S
Tstms
Obvis             F PF PF PF PF PF PF BS
Wind chill          37 36 33 27 21 18 16 14 14 23 28 20 20 17 16 15 20 29
Min chill        33    35    26    16    13    13    20    16    15    15    29


Date               Thu 01/25/18  Fri 01/26/18  Sat 01/27/18  Sun 01/28/18
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            27    51      37    51      30    41      21    32
Temp          30   27 49 47 41   38 50 46 35   30 41 35 27   21 32 26
Dewpt         26   25 28 30 28   29 36 36 32   29 26 23 20   15 15 13
PWind dir           S     S       S     S       W     W      NW    NW
Wind char          LT    GN      GN    BZ      GN    GN      GN    GN
Avg clouds    FW   FW FW FW FW   FW SC B1 B1   SC SC SC SC   SC SC SC
PoP 12hr            0     0       0    10      30     5       5     0
Rain                                       C

$$
IAZ017-222200-
Mason City-Cerro Gordo IA
43.16N  93.33W Elev. 1189 ft
352 AM CST Mon Jan 22 2018

Date             Mon 01/22/18            Tue 01/23/18            Wed 01/24/18
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          20          25          15          29
Temp             35 35 35 33 31 29 28 24 21 19 22 25 20 21 20 18 15 17 26 29 25
Dewpt            34 34 34 33 31 29 26 20 19 17 19 20 19 20 19 18 15 17 22 23 21
RH               96 96 96100100100 92 84 92 92 88 81 96 96 96100100100 85 78 84
Wind dir         NE NE NE  N  N  N  N  N NW NW NW NW NW NW  W  W  W  W  W SW  S
Wind spd         27 28 24 23 24 24 24 21 18 14 12 11  8  5  5  5  4  4  5  5  4
Wind gust        37 39 34       34
Clouds           OV OV OV OV OV OV OV B2 B2 B1 SC B1 B2 B2 B2 B1 B1 SC SC SC B1
PoP 12hr                    100         100           0          10           0
QPF 12hr                   0.82        0.06           0           0           0
Snow 12hr                     1           T       00-00
Frzg rain                     D  C
Rain              D  D  D  D
Snow                    D  S  S  D  C  S
Obvis            PF PF  F PF PF PF PF PF BS
Wind chill       22 22 23 21 18 15 14  9  6  6 10 15  9 13 12 10  8 10 19 23 19
Min chill        22    21    18    13     5     5     9    10     7     8    18
Winter Weath      Y  Y  Y  Y  Y  Y


Date               Thu 01/25/18  Fri 01/26/18  Sat 01/27/18  Sun 01/28/18
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            18    39      29    44      25    34      14    23
Temp          21   20 38 35 33   30 44 38 32   25 34 27 21   14 23 17
Dewpt         21   20 28 29 29   27 35 34 29   24 25 21 16   10 12 10
PWind dir           S    SE       S     S       W     W      NW    NW
Wind char          LT    GN      GN    BZ      GN    GN      GN    GN
Avg clouds    B1   SC SC SC FW   FW SC SC B1   B1 B1 B1 B1   B1 B1 SC
PoP 12hr            0     0       0     5      10    10      10     5

$$
IAZ049-222200-
Marshalltown-Marshall IA
42.11N  92.91W Elev. 972 ft
352 AM CST Mon Jan 22 2018

Date             Mon 01/22/18            Tue 01/23/18            Wed 01/24/18
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                      41          23          30          20          35
Temp             39 38 41 40 35 33 32 29 25 22 28 30 24 24 23 23 20 23 32 35 29
Dewpt            39 37 39 37 35 33 32 25 22 20 21 22 21 21 21 22 20 21 24 25 24
RH              100 96 92 89100100100 85 88 92 75 72 88 88 92 96100 92 72 66 81
Wind dir         NE NE NE NE  N  N NW NW NW NW NW NW NW NW NW  W  W  W  W  W  S
Wind spd         19 18 13 11 14 19 24 23 17 16 13 12  9  6  5  5  4  5  5  6  3
Wind gust                                27
Clouds           OV OV OV OV OV OV OV B2 B2 B1 SC FW B1 B2 B2 B2 B1 SC SC SC SC
PoP 12hr                     90          70           5           5           0
QPF 12hr                   0.37        0.06           0           0           0
Snow 12hr                 00-00           T       00-00
Drizzle                 C  C
Rain              D  D        L  C
Snow                          C  L  L  S
Obvis            PF PF PF PF PF PF PF PF
Wind chill       29 28 33 33 26 22 19 15 12  9 17 20 14 16 16 16 13 17 26 29
Min chill        27    27    25    19    10     8    14    14    13    13    24


Date               Thu 01/25/18  Fri 01/26/18  Sat 01/27/18  Sun 01/28/18
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    45      31    48      28    39      18    28
Temp          26   23 43 40 37   32 47 41 35   28 39 30 25   18 28 20
Dewpt         24   23 29 29 29   28 35 35 32   28 26 22 20   13 13 11
PWind dir           S     S       S     S       W     W      NW    NW
Wind char          LT    GN      GN    BZ      GN    GN      GN    GN
Avg clouds    SC   SC SC FW FW   FW SC B1 B1   B1 SC SC SC   B1 B1 SC
PoP 12hr            0     0       0    10      10    10       5     0

$$
IAZ086-222200-
Ottumwa-Wapello IA
41.11N  92.45W Elev. 836 ft
352 AM CST Mon Jan 22 2018

Date             Mon 01/22/18            Tue 01/23/18            Wed 01/24/18
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                      49          28          35          22          39
Temp             50 48 47 44 42 38 35 32 29 27 32 35 29 26 23 25 22 27 34 39 32
Dewpt            48 45 43 40 40 38 34 27 25 22 23 24 23 23 22 23 22 24 25 27 25
RH               93 89 86 86 93100 96 81 85 81 69 64 78 88 96 92100 88 69 62 75
Wind dir          E  S  S  S  W NW NW NW NW NW NW NW NW NW NW NW  W  W  W  W  S
Wind spd          9 10 10  5  4 10 18 20 16 16 14 13  9  6  5  8  5  6  6  8  4
Wind gust                                28 28
Clouds           OV B1 B1 OV OV OV OV OV B2 B1 SC FW SC B1 B1 B1 B1 FW FW FW SC
PoP 12hr                     50          50           5           5           0
QPF 12hr                   0.03        0.02           0           0           0
Snow 12hr                 00-00       00-00       00-00
Drizzle           C  C  S  C  C  C  C
Rain
Snow                                C  S
Tstms
Obvis             F PF PF    PF PF PF BS
Wind chill                      31 25 20 18 14 22 26 21 19 16 17 15 19 28
Min chill                    38    24    17    13    20    16    15    15    26


Date               Thu 01/25/18  Fri 01/26/18  Sat 01/27/18  Sun 01/28/18
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            26    50      35    52      32    43      23    33
Temp          27   27 48 45 39   36 51 48 42   32 43 37 28   23 33 27
Dewpt         25   25 29 30 29   29 35 38 36   31 29 25 21   16 16 13
PWind dir           S     S       S     S      SW     W      NW    NW
Wind char          LT    GN      GN    BZ      GN    GN      GN    GN
Avg clouds    SC   SC SC FW FW   FW FW B1 B2   B1 SC SC SC   SC SC SC
PoP 12hr            0     0       0    20      20    10       5     0
Rain                                    S  S    S
Snow                                            S

$$



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