Point Forecast Matrices
Issued by NWS Des Moines, IA

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Point Forecast Matrices
National Weather Service Des Moines IA
752 AM CST Wed Feb 21 2018

IAZ060-212200-
Des Moines-Polk IA
41.54N  93.65W Elev. 924 ft
752 AM CST Wed Feb 21 2018

Date             Wed 02/21/18            Thu 02/22/18            Fri 02/23/18
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                      27          21          33          28          39
Temp                15 22 27 24 21 21 21 21 24 30 33 33 34 33 33 28 31 37 39 35
Dewpt                7  7  9 10 11 12 15 16 18 22 25 26 28 28 28 27 29 29 30 27
RH                  70 52 46 54 65 68 77 81 77 72 72 75 78 82 82 96 92 72 70 72
Wind dir             N  N NE NE NE NE  E  E  E  E  E  E SE SE  S  W NW NW NW  N
Wind spd             8  6  8  6  6  6  8  6  9  9  8  6  6  3  3  5  5  5  4  4
Clouds              FW SC SC B2 OV OV OV OV OV OV OV OV OV OV OV B2 B1 B1 SC B1
PoP 12hr                      0          60          50          70           5
QPF 12hr                      0        0.05        0.09        0.06           0
Snow 12hr                 00-00           1           T
Drizzle                                               L  L  C  C
Frzg drzl                                       C  C  S     C  C
Frzg rain                                       C
Rain                                               C
Sleet                                                 S
Snow                                S  C  C  C
Wind chill           4 14 19 16 12 12 11 12 14 22 26 27 28       22 25
Min chill               0    14    10     9    11    23    26    22    22    31


Date               Sat 02/24/18  Sun 02/25/18  Mon 02/26/18  Tue 02/27/18
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            26    40      25    40      23    42      25    48
Temp          26   28 39 38 29   26 38 37 27   25 41 38 28   28 46 44
Dewpt         25   25 29 29 24   21 23 24 21   19 24 23 20   21 29 30
PWind dir          NE    NE      NW     W      SW    SW       S    SE
Wind char          LT    GN      GN    GN      LT    GN      LT    GN
Avg clouds    B1   B1 B2 B2 B2   SC SC SC SC   SC SC SC SC   FW FW SC
PoP 12hr           30    80      40     0       0     5       5    20
Frzg rain           C  C
Rain                   C  D  C                                      S
Snow                S        C

$$
IAZ039-212200-
Waterloo/Cedar Falls-Black Hawk IA
42.55N  92.40W Elev. 865 ft
752 AM CST Wed Feb 21 2018

Date             Wed 02/21/18            Thu 02/22/18            Fri 02/23/18
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                      23          17          32          27          36
Temp                13 19 23 20 17 18 18 19 21 29 31 31 33 32 30 27 31 35 35 32
Dewpt                7  7 10 10 12 12 14 16 18 21 24 26 28 28 28 27 29 29 29 27
RH                  76 59 57 64 80 77 84 88 88 72 75 81 82 85 92100 92 78 78 81
Wind dir             N  N  N NE NE NE  E  E  E  E  E  E SE SE  S SW  W  W  W NW
Wind spd             8  6  6  5  5  5  8  8  9  9 10 10 10  8  5  5  6  6  5  5
Clouds              SC FW SC SC B1 OV OV OV OV OV OV OV OV OV OV OV B1 B1 SC B1
PoP 12hr                      0          20          40          80           5
QPF 12hr                      0        0.01        0.01        0.12           0
Snow 12hr                 00-00           T           T
Drizzle                                                  D  C
Frzg drzl                                          S  C  S  C  C
Sleet                                                    C
Snow                                      C  C  C  C  D  S
Wind chill           2 10 15 12  9 10  8  9 11 19 22 23 25 25 24 20 24 28    26
Min chill              -3    12     9     8     9    20    22    20    20    24


Date               Sat 02/24/18  Sun 02/25/18  Mon 02/26/18  Tue 02/27/18
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    39      24    36      18    38      21    41
Temp          23   22 34 39 29   24 35 34 24   19 36 34 24   23 40 36
Dewpt         23   22 28 31 26   21 23 23 19   16 24 24 18   20 28 28
PWind dir           N     E      NW     W      SW    SW       S    SE
Wind char          LT    GN      GN    GN      GN    GN      GN    GN
Avg clouds    SC   B1 B1 B2 B2   B1 SC SC SC   SC SC SC SC   SC SC SC
PoP 12hr           30    80      60     0       0     5       5    30
Frzg rain              C  S
Rain                      D  L                                      C
Snow                C  C     L    S

$$
IAZ048-212200-
Ames-Story IA
41.99N  93.62W Elev. 936 ft
752 AM CST Wed Feb 21 2018

Date             Wed 02/21/18            Thu 02/22/18            Fri 02/23/18
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                      23          18          31          26          36
Temp                12 19 23 20 18 19 19 21 23 27 29 31 32 32 30 26 29 34 36 33
Dewpt                5  6  8  9 11 12 14 16 17 21 24 27 28 28 28 26 28 28 29 27
RH                  73 56 52 62 73 74 80 81 77 78 81 85 85 85 92100 96 78 75 78
Wind dir             N  N NE NE NE NE  E  E  E  E  E  E SE SE  S  W NW NW  W  N
Wind spd             6  6  6  6  5  6  6  8  9 10  9  8  6  5  4  5  5  6  4  5
Clouds              FW FW SC SC B2 OV OV OV OV OV OV OV OV OV OV B2 B1 B1 SC SC
PoP 12hr                      0          60          60          70           5
QPF 12hr                      0        0.05        0.07        0.08           0
Snow 12hr                 00-00           1           T
Frzg drzl                                             C  L  C  C
Frzg rain                                       L  L
Sleet                                                    S
Snow                                   C  C  C  S     L
Wind chill           1 10 15 12 10 10 10 12 13 17 21 24 26 26    19 22 28    27
Min chill              -3    10     9     8     9    19    24    18    18    25


Date               Sat 02/24/18  Sun 02/25/18  Mon 02/26/18  Tue 02/27/18
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            24    37      23    38      20    40      23    44
Temp          25   24 35 36 27   24 36 35 24   22 38 36 25   25 42 40
Dewpt         24   23 28 29 23   20 23 23 20   18 24 24 19   20 29 29
PWind dir          NE    NE      NW     W      SW    SW       S    SE
Wind char          LT    GN      GN    GN      LT    GN      GN    GN
Avg clouds    SC   B1 B2 OV B2   SC SC SC SC   SC SC SC SC   SC SC SC
PoP 12hr           30    80      30     0       0     5       5    20
Frzg rain           C  C
Rain                   C  D  C                                      S
Snow                C        C

$$
IAZ004-212200-
Estherville-Emmet IA
43.40N  94.75W Elev. 1315 ft
752 AM CST Wed Feb 21 2018

Date             Wed 02/21/18            Thu 02/22/18            Fri 02/23/18
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                      19           8          26          20          28
Temp                 2 14 19 12  8  9 12 13 16 22 25 26 26 23 22 21 21 25 28 23
Dewpt               -4  3  6  5  5  7 10 12 13 17 20 22 24 22 22 20 20 22 23 21
RH                  75 61 56 73 87 91 91 96 88 81 81 85 92 96100 96 96 88 81 92
Wind dir             W  W SW SE SE SE  E  E  E  E  E  E SE  S SW  W  W NW  W NW
Wind spd             4  4  3  4  4  5  5  6  8 10 11 10  9  6  5  9  8  8  6  8
Clouds              CL CL FW FW SC B2 OV OV OV OV OV OV OV OV OV B2 B1 B1 SC B1
PoP 12hr                      0          20          70          80           5
QPF 12hr                      0        0.01        0.06        0.11           0
Snow 12hr                 00-00           T           1
Frzg drzl                                             C  S  C  C
Frzg rain                                          C
Snow                                   S  C  C  L  L  D  D  S
Wind chill          -8  6     4 -1  0  2  3  5 11 14 16 17 15 15 11 11 17 21 15
Min chill             -13     3    -3    -1     3    12    14    11     9    14


Date               Sat 02/24/18  Sun 02/25/18  Mon 02/26/18  Tue 02/27/18
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    29      17    31      14    31      17    35
Temp          14   17 27 27 19   18 29 29 16   17 30 29 19   20 32 32
Dewpt         14   16 22 22 17   16 20 20 13   13 21 20 16   17 25 25
PWind dir           N    NE      NW     W      SW    SW       S     S
Wind char          LT    GN      GN    GN      GN    GN      GN    GN
Avg clouds    SC   B1 B2 B2 B2   B1 SC SC SC   SC SC SC SC   SC SC SC
PoP 12hr           20    60      30     0       5     5       0     5
Frzg rain              S  C  C
Snow                S  L  L  C

$$
IAZ035-212200-
Fort Dodge-Webster IA
42.55N  94.18W Elev. 1165 ft
752 AM CST Wed Feb 21 2018

Date             Wed 02/21/18            Thu 02/22/18            Fri 02/23/18
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                      20          15          29          24          33
Temp                 7 16 20 17 15 17 19 20 21 26 27 28 30 28 26 24 26 31 33 27
Dewpt                2  5  8  8  9 11 13 15 17 20 23 24 26 26 25 23 25 26 27 24
RH                  79 61 59 67 77 77 77 81 84 78 85 85 85 92 96 96 96 81 78 88
Wind dir             N  N NE  E  E  E  E  E  E  E  E  E SE  S SW  W  W NW  W  N
Wind spd             4  4  4  3  4  5  5  5  9 11 10 10  9  5  5  6  6  6  5  5
Clouds              FW FW FW FW B2 OV OV OV OV OV OV OV OV OV OV B2 B1 SC SC SC
PoP 12hr                      0          70          60          80           5
QPF 12hr                      0        0.06        0.08        0.10           0
Snow 12hr                 00-00           1           1
Frzg drzl                                             S  D  C  C
Frzg rain                                       C  L
Snow                                S  L  C  C  L     D  C
Wind chill          -2  9 13 11  8  9 11 12 11 16 17 19 22 22 19 16 18 24    21
Min chill              -6    10     8    10     9    16    19    16    16    19


Date               Sat 02/24/18  Sun 02/25/18  Mon 02/26/18  Tue 02/27/18
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    34      18    37      19    40
Temp          21   21 33 31 25   22 33 31 21   20 36 32 23   21 38 35
Dewpt         20   19 26 26 21   17 23 23 17   16 24 22 17   18 28 27
PWind dir          NE    NE      NW     W      SW    SW       S    SE
Wind char          LT    GN      GN    GN      LT    GN      GN    GN
Avg clouds    SC   B1 B2 OV B2   SC SC SC SC   SC SC SC SC   SC SC SC
PoP 12hr           30    80      20     0       0     5       0    10
Frzg rain           C  C  C  S
Rain                      S
Snow                C  C  D  S

$$
IAZ094-212200-
Lamoni-Decatur IA
40.63N  93.90W Elev. 1125 ft
752 AM CST Wed Feb 21 2018

Date             Wed 02/21/18            Thu 02/22/18            Fri 02/23/18
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                      28          22          33          29          40
Temp                16 23 28 25 22 22 22 22 24 28 33 32 33 33 33 29 32 37 40 37
Dewpt                9  8 10 10 11 13 16 18 21 23 26 28 29 29 30 28 30 30 32 29
RH                  73 52 46 52 62 68 77 84 88 81 75 85 85 85 89 96 92 75 73 72
Wind dir             N  N NE NE NE NE NE NE  E  E  E  E  E  S SW  W NW NW  N NE
Wind spd            11 10 10  9  9  9 10  9 10  9  8  8  5  3  4  5  5  5  4  5
Clouds              FW SC B1 B2 OV OV OV OV OV OV OV OV OV OV OV B2 B1 B1 SC B1
PoP 12hr                      0          70          60          50           5
QPF 12hr                      0        0.08        0.06        0.04           0
Snow 12hr                 00-00           1           T
Drizzle                                            C  C  C  C  C
Frzg drzl                                       C  C  C  C  C  C
Frzg rain                                    L
Rain                                                                          S
Snow                                C  L  L
Wind chill           3 12 19 16 12 12 11 12 14 19 26 24          23
Min chill              -2    15    12    11    12    20    22    22    22    31


Date               Sat 02/24/18  Sun 02/25/18  Mon 02/26/18  Tue 02/27/18
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            29    44      26    43      25    46      26    50
Temp          29   31 43 40 31   27 41 40 30   26 44 42 29   29 47 48
Dewpt         27   27 33 31 25   22 24 24 21   19 24 24 21   22 30 32
PWind dir          NE    NE      NW     W      SW    SW      SE    SE
Wind char          LT    GN      GN    GN      LT    GN      LT    GN
Avg clouds    B1   B1 B2 B2 B1   SC SC SC SC   SC SC FW FW   FW FW FW
PoP 12hr           40    80      40     0       0     5       5    10
Frzg rain           C  C
Rain           S       C  D  C
Sleet               C
Snow           S             C

$$
IAZ017-212200-
Mason City-Cerro Gordo IA
43.16N  93.33W Elev. 1189 ft
752 AM CST Wed Feb 21 2018

Date             Wed 02/21/18            Thu 02/22/18            Fri 02/23/18
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                      21          13          28          24          32
Temp                 8 17 21 17 13 14 15 16 18 25 28 28 29 29 28 24 26 30 32 27
Dewpt                3  5  8  8  8  9 12 13 16 19 22 24 26 26 27 24 25 25 27 24
RH                  79 58 56 67 80 80 88 88 92 78 78 85 88 88 96100 96 81 81 88
Wind dir            NW NW NW NE  E  E  E  E  E  E  E  E SE SE  S  W  W  W  W NW
Wind spd             5  4  4  4  4  4  5  6  9 10 11 11 10  8  5  8  6  8  6  6
Clouds              CL FW FW FW B1 B2 OV OV OV OV OV OV OV OV OV B2 B1 B1 SC B1
PoP 12hr                      0          20          50          90           5
QPF 12hr                      0           0        0.05        0.15           0
Snow 12hr                 00-00       00-00           1
Frzg drzl                                             C  S  C  C
Snow                                   S  C  C  C  C  D  D  S  S
Wind chill          -2 10 15 10  5  7  6  7  7 15 18 18 20 21 21 15 18 22 26 19
Min chill              -7     9     5     6     5    16    18    15    15    18


Date               Sat 02/24/18  Sun 02/25/18  Mon 02/26/18  Tue 02/27/18
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    33      20    33      16    33      19    37
Temp          21   19 31 32 24   21 32 30 22   17 32 28 21   21 36 33
Dewpt         20   18 26 27 21   19 22 22 17   14 23 22 17   18 27 26
PWind dir           N     E      NW     W      SW    SW      SW     S
Wind char          LT    GN      GN    GN      GN    GN      GN    GN
Avg clouds    SC   B1 B2 OV B2   B1 SC SC SC   SC SC SC SC   SC SC SC
PoP 12hr           20    80      40     0       0     5       5    20
Frzg rain              S  D  C
Rain                      C                                         S
Snow                S  C  D  C                                      S

$$
IAZ049-212200-
Marshalltown-Marshall IA
42.11N  92.91W Elev. 972 ft
752 AM CST Wed Feb 21 2018

Date             Wed 02/21/18            Thu 02/22/18            Fri 02/23/18
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                      23          17          31          27          36
Temp                13 19 23 20 17 20 18 20 23 28 31 31 32 32 31 27 32 35 36 31
Dewpt                6  7  9 10 12 12 14 15 17 21 25 27 28 28 28 27 29 29 29 27
RH                  73 59 54 64 80 71 84 81 77 75 78 85 85 85 88100 88 78 75 85
Wind dir             N  N  N NE NE NE NE  E  E  E  E  E SE SE  S  W NW  W  W  N
Wind spd             9  8  8  6  6  8  9  9 10 10 10 10 10  6  4  5  6  8  5  5
Clouds              SC FW SC B1 B2 OV OV OV OV OV OV OV OV OV OV B2 B1 B1 SC B1
PoP 12hr                      0          30          50          80           5
QPF 12hr                      0        0.02        0.05        0.09           0
Snow 12hr                 00-00           T           T
Drizzle                                                     C
Frzg drzl                                       S  C  C  D  C  C
Sleet                                                    C
Snow                                   S  C  C  C     D
Wind chill           1  9 14 11  8 10  7 10 12 19 22 22 24 26    20 26 28    25
Min chill              -3    10     8     7     9    20    22    20    20    25


Date               Sat 02/24/18  Sun 02/25/18  Mon 02/26/18  Tue 02/27/18
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    37      19    38      21    43
Temp          23   23 35 37 26   24 35 34 24   21 37 34 24   23 41 38
Dewpt         23   23 28 30 24   21 23 23 20   18 24 24 18   20 29 29
PWind dir          NE    NE      NW     W      SW    SW       S    SE
Wind char          LT    GN      GN    GN      GN    GN      GN    GN
Avg clouds    SC   B1 B2 B2 B2   SC SC SC SC   SC SC SC SC   SC SC SC
PoP 12hr           30    80      50     0       0     5       5    20
Frzg rain           S  C
Rain                      D  C                                      S
Snow                C  C     C

$$
IAZ086-212200-
Ottumwa-Wapello IA
41.11N  92.45W Elev. 836 ft
752 AM CST Wed Feb 21 2018

Date             Wed 02/21/18            Thu 02/22/18            Fri 02/23/18
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                      28          22          35          30          42
Temp                18 24 28 24 22 23 23 23 26 31 35 35 35 35 34 30 34 39 42 38
Dewpt               11 10 11 11 12 13 16 17 20 24 27 28 30 30 30 30 31 32 33 30
RH                  73 54 48 57 65 65 74 77 78 75 72 75 82 82 85100 89 76 70 73
Wind dir             N  N  N NE NE NE NE NE  E  E  E  E  E SE  S  W  W  W NW  N
Wind spd            12 10 11  9 10  9 11 10 11 10  9  8  8  4  4  5  6  6  5  5
Clouds              SC SC B1 B2 B2 OV OV OV OV OV OV OV OV OV OV OV B1 B1 SC B1
PoP 12hr                      0          30          50          50           5
QPF 12hr                      0           0        0.03        0.08           0
Snow 12hr                 00-00       00-00           T
Drizzle                                            C  C  C  C  C
Frzg drzl                                    C  C
Rain                                                                          S
Snow                                   S  C  C
Wind chill           5 13 18 15 11 12 11 11 15 23 28 28 28       24 28
Min chill               2    14    11    10    12    25    26    24    24    31


Date               Sat 02/24/18  Sun 02/25/18  Mon 02/26/18  Tue 02/27/18
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            28    45      28    43      25    45      27    50
Temp          28   28 40 44 33   29 42 40 30   26 44 40 30   29 47 46
Dewpt         28   28 34 33 28   24 25 25 23   20 25 25 23   24 31 31
PWind dir          NE     E      NW     W       W    SW       S     S
Wind char          LT    GN      GN    GN      LT    GN      LT    GN
Avg clouds    B1   B1 B2 B2 B2   SC SC SC SC   SC SC FW SC   FW FW SC
PoP 12hr           40    70      40     0       0     5       5     5
Frzg rain           C  C
Rain           S       C  L  C
Sleet               S
Snow           S    C        C

$$



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