Point Forecast Matrices
Issued by NWS Des Moines, IA

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Point Forecast Matrices
National Weather Service Des Moines IA
407 AM CST Thu Feb 22 2018

IAZ060-222200-
Des Moines-Polk IA
41.54N  93.65W Elev. 924 ft
407 AM CST Thu Feb 22 2018

Date             Thu 02/22/18            Fri 02/23/18            Sat 02/24/18
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          29          36          24          41
Temp             24 26 29 32 33 33 34 33 30 30 34 36 31 27 24 24 26 29 37 41 40
Dewpt            18 20 23 27 28 30 31 29 28 27 26 26 25 23 21 21 23 25 29 33 32
RH               77 78 78 81 82 89 89 85 92 88 72 67 78 85 88 88 88 85 72 73 73
Wind dir          E  E  E  E  E SE  S SW  W NW NW NW  N  N NE NE  E  E  E  E NE
Wind spd          6  8  6  6  6  5  3  4  6  8  6  6  4  4  5  6  8  9 10  8  8
Clouds           OV OV OV OV OV OV OV B2 B1 B1 SC SC SC SC B1 B2 B2 B2 OV OV OV
PoP 12hr                     70          90           0          10          70
QPF 12hr                   0.10        0.11           0           0        0.19
Snow 12hr                     T       00-00       00-00
Drizzle                             L
Frzg drzl               L  C
Frzg rain            S        S  S
Rain                          L  D                                      L  L  D
Snow              C  L                                            C  C
Wind chill       16 17 22 26 27          23 22 28          17 17 17 20 30 35
Min chill        16    15    22    27    21    21    24    17    16    16    31
Winter Weath         Y  Y  Y  Y  Y


Date               Sun 02/25/18  Mon 02/26/18  Tue 02/27/18  Wed 02/28/18
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            25    41      23    46      29    51      32    46
Temp          28   25 40 37 26   25 44 42 32   31 49 46 36   32 44 44
Dewpt         23   20 23 23 20   18 25 26 24   24 32 33 31   29 32 32
PWind dir          NW     W       W    SW       S     S       N     N
Wind char          GN    GN      LT    GN      GN    GN      GN    LT
Avg clouds    B2   SC FW FW SC   FW FW FW FW   FW FW SC B1   B1 B1 B1
PoP 12hr           90     0       0     0       0    10      40    40
Frzg rain      C
Rain           D                                         C    C  S  C
Snow           D                                              C  S

$$
IAZ039-222200-
Waterloo/Cedar Falls-Black Hawk IA
42.55N  92.40W Elev. 865 ft
407 AM CST Thu Feb 22 2018

Date             Thu 02/22/18            Fri 02/23/18            Sat 02/24/18
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                      32          28          34          20          38
Temp             23 25 29 31 32 33 33 33 29 29 32 34 28 24 21 20 22 26 35 38 37
Dewpt            18 18 22 25 28 31 31 31 29 28 27 26 25 22 20 19 20 24 28 32 33
RH               81 74 75 78 85 92 92 92100 96 81 72 88 92 96 96 92 92 75 79 85
Wind dir          E  E  E  E  E SE SE  S  W  W  W  W NW  N  N NE  E  E  E  E  E
Wind spd          5  9  9  9  9 10  8  4  8  9  9  9  5  4  5  5  8 10 11 14 11
Clouds           OV OV OV OV OV OV OV OV B2 B1 B1 SC SC SC B1 B1 B2 B1 OV OV OV
PoP 12hr                     70         100           0           5          70
QPF 12hr                   0.05        0.19           0           0        0.16
Snow 12hr                     T           T       00-00
Drizzle                             D  S
Frzg rain                  L  C
Rain                             D                                      L  L  D
Snow              C  C  C  S  S                                   S  S  C
Wind chill       15 15 20 23 24 25 26    21 20 24 27 22 18 13 12 13 16 26 29 30
Min chill        13    13    20    23    20    19    21    12    10    11    27
Winter Weath         Y  Y  Y  Y  Y


Date               Sun 02/25/18  Mon 02/26/18  Tue 02/27/18  Wed 02/28/18
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            24    36      19    41      24    45      29    42
Temp          34   24 35 33 24   20 38 38 28   26 43 41 32   30 41 39
Dewpt         29   21 23 23 19   16 23 26 23   23 31 32 30   28 33 31
PWind dir          SW     W       W    SW       S     S      NE    NE
Wind char          BZ    BZ      GN    GN      GN    LT      GN    LT
Avg clouds    OV   B2 SC FW FW   FW FW FW FW   FW SC SC B1   B2 B1 B2
PoP 12hr           90     5       0     0       0    10      40    30
Rain           D                                         C       S  C
Snow                C                                    C    C  S

$$
IAZ048-222200-
Ames-Story IA
41.99N  93.62W Elev. 936 ft
407 AM CST Thu Feb 22 2018

Date             Thu 02/22/18            Fri 02/23/18            Sat 02/24/18
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                      31          27          33          21          37
Temp             24 25 27 29 31 32 32 32 28 27 31 33 28 24 21 21 22 26 33 37 37
Dewpt            18 19 23 27 28 30 31 29 27 25 26 26 24 22 20 20 21 23 28 32 32
RH               77 78 85 92 88 92 96 88 96 92 81 75 85 92 96 96 96 88 82 82 82
Wind dir          E  E  E  E  E SE  S SW  W NW NW NW NW  N NE NE  E  E  E  E NE
Wind spd          6  9  9  8  8  8  4  4  9  9  9  8  5  4  5  6  8 10 11  9  9
Clouds           OV OV OV OV OV OV OV B2 B2 B1 SC SC SC SC B1 B1 B2 B2 OV OV OV
PoP 12hr                     70         100           0          10          80
QPF 12hr                   0.11        0.13           0           0        0.21
Snow 12hr                     T           T       00-00
Frzg drzl                           D
Frzg rain               L  L  L  D                                      S
Rain                                                                    D  D  D
Sleet                         S  C
Snow              C  L  S           S                             C  C  C     C
Wind chill       16 16 19 21 24 25    26 20 18 24 26 21 17 13 13 13 16 25 30 30
Min chill        15    14    18    24    18    17    20    13    11    12    27
Winter Weath         Y  Y  Y  Y  Y


Date               Sun 02/25/18  Mon 02/26/18  Tue 02/27/18  Wed 02/28/18
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    37      19    42      26    47      28    42
Temp          27   22 36 33 23   21 40 39 30   28 46 42 34   28 40 39
Dewpt         23   19 23 23 18   16 24 27 23   23 31 32 30   27 31 30
PWind dir          NW     W       W    SW       S    SE       N     N
Wind char          BZ    GN      GN    GN      GN    GN      GN    GN
Avg clouds    B2   B1 FW FW FW   FW FW FW FW   FW SC SC B1   B2 B1 B2
PoP 12hr           90     0       0     0       0    10      30    40
Frzg rain      C
Rain           D                                         C       S  C
Snow           D    S                                    C    C  S

$$
IAZ004-222200-
Estherville-Emmet IA
43.40N  94.75W Elev. 1315 ft
407 AM CST Thu Feb 22 2018

Date             Thu 02/22/18            Fri 02/23/18            Sat 02/24/18
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                      28          19          26          12          27
Temp             15 19 24 28 28 28 25 24 20 20 23 26 20 16 12 14 14 17 23 27 27
Dewpt            12 15 18 21 24 25 25 24 19 18 20 21 19 16 12 14 14 16 20 23 24
RH               88 84 77 75 85 88100100 96 92 88 81 96100100100100 96 88 85 88
Wind dir          E  E  E  E SE SE  S SW  W  W NW  W NW NW NE  E  E  E  E NE  N
Wind spd          5  8 10 12 12  9  5  8 10 10 10  9  6  4  4  5  6  6  9 10 11
Clouds           OV OV OV OV OV OV OV B2 B1 SC B1 SC B1 B1 B1 B2 B2 OV OV OV OV
PoP 12hr                     90          90           0           5          90
QPF 12hr                   0.06        0.22           0           0        0.34
Snow 12hr                     1           2       00-00
Frzg drzl                           S
Frzg rain                  C  S
Snow              C  C  C  L  D  D  L                             C  C  D  D  L
Wind chill        7  9 13 17 17 19 18 15  9  9 12 17 11  9  4  5  4  8 13 17 16
Min chill         4     6    14    17     7     7    11     3     3     4    15
Winter Weath         Y  Y  Y  Y  Y


Date               Sun 02/25/18  Mon 02/26/18  Tue 02/27/18  Wed 02/28/18
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    29      12    33      18    34      18    31
Temp          21   17 27 26 16   13 30 31 22   19 32 31 21   19 30 29
Dewpt         19   15 19 19 13   11 22 23 20   19 25 24 18   16 23 23
PWind dir          NW     W       W    SW      SW     E       N     N
Wind char          BZ    BZ      GN    GN      GN    GN      GN    GN
Avg clouds    B2   B1 FW FW FW   FW FW FW FW   SC SC B1 SC   SC B1 B2
PoP 12hr           70     0       0     0       0     5      20    20
Snow           L                                         S    S  S  S

$$
IAZ035-222200-
Fort Dodge-Webster IA
42.55N  94.18W Elev. 1165 ft
407 AM CST Thu Feb 22 2018

Date             Thu 02/22/18            Fri 02/23/18            Sat 02/24/18
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                      30          24          30          17          33
Temp             21 23 27 30 30 31 31 28 25 24 27 30 24 20 17 18 18 22 30 33 32
Dewpt            18 19 23 27 27 27 30 26 23 22 23 24 21 19 17 17 17 20 25 29 28
RH               88 84 85 88 88 85 96 92 92 92 85 78 88 96100 96 96 92 81 85 85
Wind dir          E  E  E  E SE SE  S SW  W  W NW NW NW  N NE  E  E  E  E  E  N
Wind spd          4  8 11 10 10  9  4  5  8  9  9  8  4  4  4  5  6  9 10 10  9
Clouds           OV OV OV OV OV OV OV B2 B1 SC SC SC SC B1 B1 B2 B2 B2 OV OV OV
PoP 12hr                     80          90           0           5          90
QPF 12hr                   0.07        0.21           0           0        0.31
Snow 12hr                     T           1       00-00
Frzg drzl                           L
Frzg rain               S  L  S  D                                      C
Rain                                                                       S
Sleet                            C
Snow              L  C  L     D  C  C                             C  C  D  D  D
Wind chill       15 14 17 21 21 23    22 16 15 18 22 18 13 10 10  9 12 21 25 24
Min chill        11    12    18    21    15    14    16    10     8     8    22
Winter Weath         Y  Y  Y  Y  Y


Date               Sun 02/25/18  Mon 02/26/18  Tue 02/27/18  Wed 02/28/18
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            19    32      15    38      22    41      24    37
Temp          24   19 31 29 18   17 36 35 26   23 39 38 30   24 36 34
Dewpt         21   17 22 21 14   12 25 25 21   20 29 28 27   22 28 27
PWind dir          NW     W      SW    SW       S    SE      NE     N
Wind char          GN    GN      GN    GN      GN    GN      GN    GN
Avg clouds    B2   B1 FW FW FW   FW FW FW FW   FW SC SC B1   B1 B1 B2
PoP 12hr           90     0       0     0       0     5      30    40
Rain                                                     S          C
Snow           D    S                                    S    C     C

$$
IAZ094-222200-
Lamoni-Decatur IA
40.63N  93.90W Elev. 1125 ft
407 AM CST Thu Feb 22 2018

Date             Thu 02/22/18            Fri 02/23/18            Sat 02/24/18
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          29          39          27          42
Temp             25 26 29 32 33 34 34 33 29 30 35 39 34 30 28 27 29 32 36 42 40
Dewpt            21 23 24 28 28 29 31 30 29 28 27 27 26 25 24 24 25 28 31 34 33
RH               84 88 81 85 82 82 89 89100 92 72 62 72 81 85 88 85 85 82 73 76
Wind dir         NE  E  E  E  E SE SW  W  W NW NW NW  N NE NE NE  E  E  E  E SW
Wind spd          9  9  8  6  8  6  4  5  8  8  6  5  4  5  8  9 10 11 11 10 10
Clouds           OV OV OV OV OV OV OV B2 B2 B2 SC SC B1 B1 B2 B2 B2 B2 OV OV B2
PoP 12hr                     60          90           0          20          80
QPF 12hr                   0.06        0.09           0           0        0.15
Snow 12hr                     T       00-00       00-00
Drizzle                    S        L
Frzg drzl               S  S        S
Frzg rain            L        S  S                                C  C
Rain                          L  D                                      D  D  C
Snow              C                                         S  S
Wind chill       15 17 21 26 26 28       22 23 29       24 20 18 20 23 29 36 34
Min chill        14    14    22    26    21    21    29    19    17    18    31
Winter Weath      Y  Y  Y  Y  Y  Y


Date               Sun 02/25/18  Mon 02/26/18  Tue 02/27/18  Wed 02/28/18
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            25    43      25    48      31    54      35    50
Temp          30   25 41 40 29   27 46 44 34   34 52 50 38   36 48 47
Dewpt         24   20 23 24 22   19 25 26 24   26 33 34 34   32 35 34
PWind dir           W     W       W    SW       S     S      SE    NE
Wind char          BZ    GN      GN    GN      GN    GN      GN    LT
Avg clouds    B2   SC FW SC SC   FW FW FW FW   FW SC SC B1   B1 B1 B1
PoP 12hr           40     0       0     0       0     5      50    50
Frzg rain      C
Rain           C                                         C    C  S  C
Snow                                                          C  S

$$
IAZ017-222200-
Mason City-Cerro Gordo IA
43.16N  93.33W Elev. 1189 ft
407 AM CST Thu Feb 22 2018

Date             Thu 02/22/18            Fri 02/23/18            Sat 02/24/18
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                      30          23          29          16          33
Temp             20 22 27 29 30 31 31 31 25 23 27 29 24 20 16 16 17 21 30 33 33
Dewpt            17 19 21 24 26 28 30 29 25 23 23 24 21 19 16 16 16 20 25 29 29
RH               88 88 78 81 85 88 96 92100100 85 81 88 96100100 96 96 81 85 85
Wind dir          E  E  E  E SE SE  S SW  W  W  W  W NW NW  N NE  E  E  E  E  E
Wind spd          6  8  9 11 10 10  6  5 10 10 10  9  8  5  5  5  6  9 11 11 10
Clouds           OV OV OV OV OV OV OV OV B2 B1 B1 SC B1 B1 B1 B1 B2 B2 OV OV OV
PoP 12hr                     80         100           0           5          90
QPF 12hr                   0.05        0.26           0           0        0.24
Snow 12hr                     T           2       00-00
Frzg drzl                  S        C
Frzg rain                     S                                         C
Snow              L  C  C  L  D  D  D                             S  S  D  D  D
Wind chill       12 13 18 20 20 22 24 24 15 13 18 21 15 12  7  7  7 11 20 24 25
Min chill        11    11    17    20    14    12    13     7     6     7    22
Winter Weath         Y  Y  Y  Y  Y


Date               Sun 02/25/18  Mon 02/26/18  Tue 02/27/18  Wed 02/28/18
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            21    31      14    36      20    38      23    36
Temp          28   21 30 27 19   15 33 33 25   21 36 36 28   24 35 34
Dewpt         25   18 23 21 15   12 23 25 21   20 29 28 26   23 29 27
PWind dir          NW     W      SW    SW       S     S      NE    NE
Wind char          BZ    BZ      GN    GN      GN    GN      GN    GN
Avg clouds    OV   B2 SC FW FW   FW FW FW FW   SC SC B1 B1   B1 B1 B2
PoP 12hr           90     0       0     0       0     5      20    30
Rain                                                     S          C
Snow           D    C                                    S    S     C

$$
IAZ049-222200-
Marshalltown-Marshall IA
42.11N  92.91W Elev. 972 ft
407 AM CST Thu Feb 22 2018

Date             Thu 02/22/18            Fri 02/23/18            Sat 02/24/18
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                      32          27          34          21          38
Temp             23 24 28 31 31 33 33 32 28 28 32 34 28 23 21 21 23 26 34 38 38
Dewpt            18 19 22 26 27 30 31 30 28 27 27 26 24 22 20 20 21 24 28 32 33
RH               81 81 78 81 85 89 92 92100 96 81 72 85 96 96 96 92 92 78 79 82
Wind dir          E  E  E  E  E SE  S SW  W  W  W  W NW  N NE NE  E  E  E  E  E
Wind spd          8 10 10  9  9  9  6  4  9 10  9  9  5  4  6  6  9  9 11 12 10
Clouds           OV OV OV OV OV OV OV OV B2 B1 SC SC SC SC B1 B1 B2 B1 OV OV OV
PoP 12hr                     70         100           0          10          70
QPF 12hr                   0.06        0.14           0           0        0.16
Snow 12hr                     T       00-00       00-00
Drizzle                             D
Frzg drzl               L  L        S
Frzg rain               L  L  C  S
Rain                             D                                      L  L  D
Snow              C  C                                            C  C  S
Wind chill       13 14 19 23 23 25 27    20 19 24 26 21 17 13 13 13 17 26 30 31
Min chill        12    12    20    24    19    17    20    12    11    13    26
Winter Weath         Y  Y  Y  Y  Y


Date               Sun 02/25/18  Mon 02/26/18  Tue 02/27/18  Wed 02/28/18
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    37      19    42      25    46      29    42
Temp          29   22 36 33 24   20 40 38 29   27 45 40 33   30 41 38
Dewpt         26   20 23 23 20   17 23 26 23   23 31 32 31   28 33 31
PWind dir          SW     W       W    SW       S    SE       N     N
Wind char          BZ    BZ      GN    GN      GN    GN      GN    GN
Avg clouds    OV   B1 SC FW FW   FW FW FW FW   FW FW SC B1   B2 B1 B1
PoP 12hr           90     0       0     0       0    10      40    30
Frzg rain      C
Rain           D                                         C       S  C
Snow           D    S                                    C    C  S

$$
IAZ086-222200-
Ottumwa-Wapello IA
41.11N  92.45W Elev. 836 ft
407 AM CST Thu Feb 22 2018

Date             Thu 02/22/18            Fri 02/23/18            Sat 02/24/18
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                      34          30          40          27          45
Temp             26 27 31 33 34 34 35 34 30 32 38 39 33 29 27 27 28 31 40 45 45
Dewpt            20 23 27 29 28 30 32 32 30 30 30 29 27 26 25 24 26 28 33 36 36
RH               78 85 85 85 78 85 89 92100 92 73 67 78 88 92 88 92 88 76 70 70
Wind dir         NE  E  E  E  E SE SE SW  W  W  W NW NW  N NE NE  E  E  E  E SE
Wind spd         10 10 10  8  8  9  5  5  8  9  9  8  5  5  6  9 10 10 12 12 11
Clouds           OV OV OV OV OV OV OV OV B2 B2 B1 SC B1 B1 B1 B2 B2 OV OV OV OV
PoP 12hr                     60          90           0          30          70
QPF 12hr                   0.03        0.12           0           0        0.15
Snow 12hr                     T       00-00       00-00
Drizzle                    S        D
Frzg drzl            L  C
Frzg rain                                                            C
Rain                          C  L                                      L  L  D
Snow              C  S                                      C  C  C
Wind chill       17 17 22 26 27 27       23 24 32       23 20 18 19 23 33 39 39
Min chill        16    15    22    27    22    22    26    20    17    19    35
Winter Weath      Y  Y  Y  Y  Y  Y


Date               Sun 02/25/18  Mon 02/26/18  Tue 02/27/18  Wed 02/28/18
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    45      25    49      30    54      35    51
Temp          35   27 43 40 31   27 47 44 33   33 52 48 38   36 49 48
Dewpt         28   22 24 24 23   20 25 27 24   26 35 35 35   34 38 36
PWind dir          SW     W       W    SW       S     S       S     E
Wind char          BZ    GN      GN    GN      GN    GN      GN    LT
Avg clouds    B2   SC FW FW SC   FW FW FW FW   FW FW SC B1   B1 B1 B1
PoP 12hr           80     0       0     0       0     5      50    30
Rain           D                                              C  S  C
Snow                                                          C  S

$$



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