Point Forecast Matrices
Issued by NWS Des Moines, IA

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POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE DES MOINES IA
744 AM CST SUN DEC 21 2014

IAZ060-212200-
DES MOINES-POLK IA
41.54N  93.65W ELEV. 924 FT
744 AM CST SUN DEC 21 2014

DATE             SUN 12/21/14            MON 12/22/14            TUE 12/23/14
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          38          47          31          38
TEMP                37 40 42 41 42 42 41 38 39 42 46 42 38 33 33 31 32 35 38 33
DEWPT               34 36 37 38 37 38 38 36 37 39 38 37 35 31 31 29 30 29 31 29
RH                  89 85 82 89 82 86 89 92 92 89 73 82 89 92 92 92 92 78 76 85
WIND DIR             S  S  S  S  S  S  S  S  S SW SW SW SW  W  W  W  W NW NW NW
WIND SPD            14 16 14 13 16 17 18 17 14 13 11  9  8  8  6  9 11 13 14 16
CLOUDS              OV OV OV OV OV OV OV OV OV OV OV B2 B2 B2 OV OV OV OV OV OV
POP 12HR                     20          70          70          10          20
QPF 12HR                      0        0.08        0.15           0        0.02
SNOW 12HR                 00-00       00-00       00-00
RAIN                          S  C  C  L  L  L  C  C                    S  S
SNOW                                                                    S  S
OBVIS               PF
WIND CHILL          28 32 34 33 34 33 32 29 31 35    36 32 26    23 23 26 29 22
MIN CHILL              28    32    32    29    29    36    26    23    22    21


DATE               WED 12/24/14  THU 12/25/14  FRI 12/26/14  SAT 12/27/14
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    35      25    38      25    30      16    30
TEMP          29   26 33 31 28   26 35 32 29   26 29 24 20   17 27 26
DEWPT         26   24 24 24 22   22 25 25 25   22 20 18 14   11 16 17
PWIND DIR          NW    NW       W    SW      NE     N      NW     W
WIND CHAR          BZ    BZ      GN    GN      GN    GN      GN    GN
AVG CLOUDS    OV   OV B2 B2 B1   B1 SC B1 B1   B2 B2 B2 B1   SC SC SC
POP 12HR           10    10       5     5      30    20      10     5
SNOW                                       C    C  S  S

$$
IAZ039-212200-
WATERLOO/CEDAR FALLS-BLACK HAWK IA
42.55N  92.40W ELEV. 865 FT
744 AM CST SUN DEC 21 2014

DATE             SUN 12/21/14            MON 12/22/14            TUE 12/23/14
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                      38          34          40          31          37
TEMP                36 37 38 37 38 38 37 36 34 36 40 39 40 36 35 31 32 35 37 29
DEWPT               34 35 35 36 36 37 36 35 34 36 37 36 36 34 33 30 32 32 33 29
RH                  92 92 89 96 92 96 96 96100100 89 89 85 92 92 96100 89 85100
WIND DIR             S  S  S  S  S  S  S SE SE  S  S  S  S SW  S  W  W  W NW NW
WIND SPD            13 17 14 13 17 17 17 18 18 16 11  9  8  8  5  5  5  9 10 12
CLOUDS              OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV
POP 12HR                     30          70          90          40          30
QPF 12HR                   0.02        0.06        0.22        0.03        0.03
SNOW 12HR                 00-00       00-00       00-00
DRIZZLE
RAIN                 S  C  C  C  C  C  C  D  D  D  D  C  C  C  C
SNOW                                                              S  S  C  C  S
OBVIS               PF
WIND CHILL          27 27 30 28 29 29 28 26 23 26 33 33    30    25 26 28 30 19
MIN CHILL              26    27    27    26    23    28    30    23    24    19


DATE               WED 12/24/14  THU 12/25/14  FRI 12/26/14  SAT 12/27/14
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    33      22    33      23    27      12    25
TEMP          28   26 31 28 25   23 30 29 26   24 26 20 16   13 22 21
DEWPT         28   26 27 25 23   22 24 24 25   22 20 18 14    8 14 16
PWIND DIR          NW    NW      NW     W      NE     N      NW     W
WIND CHAR          GN    BZ      GN    GN      GN    GN      GN    GN
AVG CLOUDS    OV   OV OV B2 B2   B1 B1 B1 B2   OV OV B2 B1   SC B1 SC
POP 12HR           20    20      10     5      30    30      10    10
SNOW           S    S  S  S                C    C  C  C

$$
IAZ048-212200-
AMES-STORY IA
41.99N  93.62W ELEV. 936 FT
744 AM CST SUN DEC 21 2014

DATE             SUN 12/21/14            MON 12/22/14            TUE 12/23/14
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          37          44          31          35
TEMP                36 38 40 38 38 39 40 38 37 40 44 41 37 33 33 31 32 33 35 29
DEWPT               34 35 35 36 37 37 38 36 36 39 37 36 33 32 32 29 30 29 31 28
RH                  92 89 82 92 96 92 92 92 96 96 76 82 85 96 96 92 92 85 85 96
WIND DIR             S  S  S  S  S  S  S  S  S  S SW SW SW  W  W  W NW NW NW NW
WIND SPD            13 16 16 16 16 17 18 17 14 12 10  9  8  9  5  8 10 14 16 16
CLOUDS              OV OV OV OV OV OV OV OV OV OV OV B2 OV OV OV OV OV OV OV OV
POP 12HR                     20          80          80          20          30
QPF 12HR                      0        0.09        0.15        0.02        0.03
SNOW 12HR                 00-00       00-00       00-00
RAIN                          S  C  C  L  D  L  C  C  S  S  S  S        S  S
SNOW                                                        S  S  S  S  C  C
OBVIS               PF
WIND CHILL          27 29 31 29 29 30 31 29 28 33 38 35 31 26    23 23 23 25 18
MIN CHILL              25    29    29    29    28    34    25    22    22    17


DATE               WED 12/24/14  THU 12/25/14  FRI 12/26/14  SAT 12/27/14
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    33      23    35      23    28      14    27
TEMP          27   24 31 29 26   24 32 30 26   24 27 22 18   15 24 23
DEWPT         25   24 24 23 22   21 24 24 24   20 19 18 13   10 16 16
PWIND DIR          NW    NW       W     W      NE     N      NW     W
WIND CHAR          BZ    BZ      GN    GN      GN    GN      GN    GN
AVG CLOUDS    OV   OV OV B2 B1   B1 B1 B1 B2   OV B2 B2 B1   SC SC SC
POP 12HR           10    20       5     5      30    20      10     5
SNOW                   S  S                C    C  S  S

$$
IAZ004-212200-
ESTHERVILLE-EMMET IA
43.40N  94.75W ELEV. 1315 FT
744 AM CST SUN DEC 21 2014

DATE             SUN 12/21/14            MON 12/22/14            TUE 12/23/14
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                      37          34          39          28          32
TEMP                34 35 37 35 35 37 37 37 37 39 39 36 34 31 30 28 28 31 32 27
DEWPT               32 35 35 35 35 36 36 35 36 35 34 33 31 31 30 28 28 27 28 26
RH                  92100 92100100 96 96 92 96 85 82 89 89100100100100 85 85 96
WIND DIR             S  S  S  S  S  S  S  S  S  S SW SW  S NW NW NW NW NW NW NW
WIND SPD            13 17 17 20 20 19 18 16 13 11  9 10  6 10 13 12 17 20 18 18
CLOUDS              OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV
POP 12HR                     20          80          80          50          40
QPF 12HR                      0        0.13        0.09        0.03        0.04
SNOW 12HR                 00-00       00-00       00-00
RAIN                    S  S  S  C  C  D  D  L  L  L  C  C
SNOW                                                  C  C  C  C  C  C  C  C  S
OBVIS               PF
WIND CHILL          25 25 27 24 24 27 27 28 28 32 33 29 28 22 19 17 16 18 20 14
MIN CHILL              23    24    22    26    28    29    22    17    16    14


DATE               WED 12/24/14  THU 12/25/14  FRI 12/26/14  SAT 12/27/14
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    28      20    29      17    22       7    23
TEMP          25   22 27 24 22   20 27 24 20   18 21 15 11    8 19 16
DEWPT         24   22 23 23 21   20 22 21 20   17 16 13 10    6 17 14
PWIND DIR          NW    NW       W    NW       N     N      NW     W
WIND CHAR          BZ    BZ      GN    GN      GN    BZ      GN    GN
AVG CLOUDS    OV   OV B2 B2 B2   B1 B1 B2 OV   OV OV B2 B1   B1 SC SC
POP 12HR           20    20      10    20      40    20      10     5
SNOW           S    S  S  S          S  S  C    C  S  S

$$
IAZ035-212200-
FORT DODGE-WEBSTER IA
42.55N  94.18W ELEV. 1165 FT
744 AM CST SUN DEC 21 2014

DATE             SUN 12/21/14            MON 12/22/14            TUE 12/23/14
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          42          30          35
TEMP                36 37 39 37 36 38 38 38 38 41 42 39 37 33 32 30 31 34 35 29
DEWPT               34 35 36 35 36 36 37 36 36 37 36 35 31 31 31 30 29 28 29 26
RH                  92 92 89 92100 92 96 92 92 85 79 85 79 92 96100 92 78 78 88
WIND DIR             S  S  S  S  S  S  S  S  S  S SW SW SW  W NW NW NW NW NW NW
WIND SPD            14 17 17 16 19 20 19 18 14 12 11  9  8  8  8 11 13 17 16 14
CLOUDS              OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV
POP 12HR                     20          80          80          30          40
QPF 12HR                   0.01        0.10        0.10        0.02        0.03
SNOW 12HR                 00-00       00-00       00-00
RAIN                          S  C  C  L  D  L  C  C  C  C
SNOW                                                        C  C  C  C  C  C  S
OBVIS               PF
WIND CHILL          27 27 30 28 26 28 28 28 29 34 36 33 31 26 25 20 20 23 25 17
MIN CHILL              25    28    25    28    29    32    26    20    19    16


DATE               WED 12/24/14  THU 12/25/14  FRI 12/26/14  SAT 12/27/14
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    31      22    33      21    25      11    26
TEMP          27   24 29 27 24   23 30 28 24   22 24 19 15   12 22 21
DEWPT         24   23 23 22 21   21 23 23 22   18 18 15 11    9 17 15
PWIND DIR          NW    NW       W     W       N     N      NW     W
WIND CHAR          BZ    BZ      GN    GN      GN    BZ      GN    GN
AVG CLOUDS    OV   OV B2 B2 B2   B1 B1 B1 OV   OV OV B2 B1   B1 SC SC
POP 12HR           20    20      10    10      40    30      10     5
SNOW           S    S  S  S                C    C  C  C

$$
IAZ094-212200-
LAMONI-DECATUR IA
40.63N  93.90W ELEV. 1125 FT
744 AM CST SUN DEC 21 2014

DATE             SUN 12/21/14            MON 12/22/14            TUE 12/23/14
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          37          46          31          36
TEMP                36 39 41 40 40 40 39 39 38 42 46 41 37 34 33 31 32 34 36 32
DEWPT               34 36 37 38 38 38 39 37 38 40 39 37 35 33 32 30 30 30 30 28
RH                  92 89 85 92 92 92100 92100 93 76 85 92 96 96 96 92 85 79 85
WIND DIR             S  S  S  S  S  S  S  S  S SW SW SW SW  W  W  W NW NW NW NW
WIND SPD            13 16 14 13 16 16 16 16 13 14 13  9  9  8  8  9 12 16 16 14
CLOUDS              OV OV OV OV OV OV OV OV OV OV B2 B2 B1 B1 B2 OV OV OV OV OV
POP 12HR                     20          60          60          10          10
QPF 12HR                      0        0.09        0.12           0           0
SNOW 12HR                 00-00       00-00       00-00
DRIZZLE                       S
RAIN                          S  C  C  L  L  L  C  S
OBVIS               PF
WIND CHILL          27 30 33 32 32 32 31 30 30 34    35 31 27 26 23 23 24 26 21
MIN CHILL              27    31    31    30    29    34    27    23    22    19


DATE               WED 12/24/14  THU 12/25/14  FRI 12/26/14  SAT 12/27/14
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    35      25    39      25    31      17    31
TEMP          28   26 33 31 28   26 36 33 29   26 30 25 21   18 28 27
DEWPT         26   25 24 24 23   23 26 27 27   24 23 20 16   13 17 18
PWIND DIR          NW    NW       W    SW       E     N      NW     W
WIND CHAR          BZ    BZ      GN    GN      GN    GN      GN    GN
AVG CLOUDS    OV   OV B2 B2 B1   B1 SC SC B1   B1 B2 B2 B1   B1 SC SC
POP 12HR           10    10       5     5      20    20      10     5
SNOW                                       S    S  S  S

$$
IAZ017-212200-
MASON CITY-CERRO GORDO IA
43.16N  93.33W ELEV. 1189 FT
744 AM CST SUN DEC 21 2014

DATE             SUN 12/21/14            MON 12/22/14            TUE 12/23/14
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                      37          34          39          30          35
TEMP                34 35 37 35 36 37 38 39 35 37 39 38 38 34 33 32 30 34 34 28
DEWPT               33 35 35 35 35 35 36 35 34 35 35 34 33 32 31 30 30 30 31 28
RH                  96100 92100 96 92 92 85 96 92 85 85 82 92 92 92100 85 89100
WIND DIR             S  S  S  S  S  S  S  S  S  S  S  S  S SW  S  W NW NW NW NW
WIND SPD            14 17 18 17 18 19 19 19 17 13 11  8  8  8  5  8 10 13 14 13
CLOUDS              OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV
POP 12HR                     30          80          90          50          40
QPF 12HR                   0.02        0.08        0.20        0.03        0.03
SNOW 12HR                 00-00       00-00           T
DRIZZLE
FRZG RAIN
RAIN                 S  C  C  C  C  C  L  D  D  D  D  C  C
SNOW                 S                    D  D              C  C  C  C  C  C  S
OBVIS               PF
WIND CHILL          24 25 27 25 26 27 28 29 25 28 32 32 32 27    25 21 24 24 17
MIN CHILL              24    25    24    27    24    29    27    22    20    16


DATE               WED 12/24/14  THU 12/25/14  FRI 12/26/14  SAT 12/27/14
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    31      20    31      20    23       8    22
TEMP          25   23 29 26 23   21 28 26 23   21 22 16 12    9 19 18
DEWPT         25   23 26 24 21   20 23 23 23   20 18 15 10    6 16 16
PWIND DIR          NW    NW      NW     W       N     N      NW     W
WIND CHAR          BZ    BZ      GN    GN      GN    BZ      GN    GN
AVG CLOUDS    OV   OV OV B2 B2   B1 B1 B1 OV   OV OV B2 B1   B1 SC SC
POP 12HR           20    20      10    10      30    30      10     5
SNOW           S    S  S  S                C    C  C  C

$$
IAZ049-212200-
MARSHALLTOWN-MARSHALL IA
42.11N  92.91W ELEV. 972 FT
744 AM CST SUN DEC 21 2014

DATE             SUN 12/21/14            MON 12/22/14            TUE 12/23/14
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          42          30          36
TEMP                37 39 40 38 38 39 38 37 35 38 42 39 38 35 34 30 31 34 36 30
DEWPT               34 35 36 36 36 37 36 35 35 37 37 36 35 34 32 29 30 31 32 29
RH                  89 85 85 92 92 92 92 92100 96 82 89 89 96 92 96 96 89 85 96
WIND DIR             S  S  S  S  S  S  S  S  S  S  S  S  S SW SW  W  W  W NW NW
WIND SPD            16 18 17 17 16 19 19 19 17 14 11 10  9  8  6  8 10 12 13 16
CLOUDS              OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV
POP 12HR                     20          80          80          30          30
QPF 12HR                   0.01        0.07        0.19        0.03        0.03
SNOW 12HR                 00-00       00-00       00-00
DRIZZLE
RAIN                 S  S  S  S  C  C  C  D  D  D  L  C  C  S  S
SNOW                                                        S  S  S  S  C  C  S
OBVIS               PF
WIND CHILL          28 29 31 29 29 29 28 27 25 29 36 32 32 28 28 22 22 25 27 19
MIN CHILL              26    28    28    27    25    32    28    22    22    19


DATE               WED 12/24/14  THU 12/25/14  FRI 12/26/14  SAT 12/27/14
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    33      23    34      23    27      13    26
TEMP          26   25 31 29 26   24 31 29 26   24 26 21 17   14 23 22
DEWPT         26   25 26 25 22   21 24 24 24   21 20 18 13    9 15 15
PWIND DIR          NW    NW       W     W      NE     N      NW     W
WIND CHAR          BZ    BZ      GN    GN      GN    GN      GN    GN
AVG CLOUDS    OV   OV OV B2 B1   B1 B1 B1 B2   OV B2 B2 B1   SC B1 SC
POP 12HR           20    20       5     5      30    30      10     5
SNOW           S    S  S  S                C    C  C  C

$$
IAZ086-212200-
OTTUMWA-WAPELLO IA
41.11N  92.45W ELEV. 836 FT
744 AM CST SUN DEC 21 2014

DATE             SUN 12/21/14            MON 12/22/14            TUE 12/23/14
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          36          45          33          38
TEMP                39 41 42 40 39 37 37 37 37 41 45 43 42 37 36 33 34 36 38 32
DEWPT               35 36 37 37 37 37 36 35 35 39 39 39 36 35 34 31 31 31 32 30
RH                  85 82 82 89 92100 96 92 92 92 79 86 79 92 92 92 89 82 79 92
WIND DIR             S  S  S  S  S  S  S  S  S  S  S SW  S SW SW  W  W  W NW NW
WIND SPD            13 16 14 13 16 16 17 18 17 16 13 10  9  8  6  8  9 11 12 13
CLOUDS              OV OV OV OV OV OV OV OV OV OV OV OV B2 B2 OV OV OV OV OV OV
POP 12HR                     20          70          80          30          10
QPF 12HR                      0        0.05        0.18        0.03           0
SNOW 12HR                 00-00       00-00       00-00
DRIZZLE                       S
RAIN                          S  S  C  C  D  L  L  L  C  C  S  S
OBVIS               PF
WIND CHILL          31 33 34 32 30 28 28 27 27 33 39 37 36 31 30 26 27 28 30 22
MIN CHILL              29    32    28    27    26    36    30    25    25    21


DATE               WED 12/24/14  THU 12/25/14  FRI 12/26/14  SAT 12/27/14
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    34      25    38      26    31      17    28
TEMP          28   25 32 30 27   26 35 33 29   27 30 25 21   18 25 25
DEWPT         27   25 26 25 24   22 26 26 27   25 24 20 17   12 16 16
PWIND DIR          NW    NW       W     W       E     N      NW     W
WIND CHAR          BZ    BZ      GN    GN      GN    GN      GN    GN
AVG CLOUDS    OV   OV OV B2 B2   B1 B1 B1 B1   B1 B2 B2 B1   B1 SC SC
POP 12HR           10    20       5     5      20    20      10    10
SNOW                   S  S                S    S  S  S

$$



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