Heat Index Forecast Tables
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302
FMUS23 KWNH 201609
PRBEHI

DAYS 3--7 HEAT INDEX FORECAST TABLES
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
1607 UTC WED AUG 20 2025

MEAN HEAT INDEX (DEG F) AND MEAN HI PROB (%) FRCSTS
AT EASTERN US CITIES - DAYS 3 TO 7 FROM WED AUG 20 2025

           AKRON-CANTON_OH                   ALBANY_NY
CAK   0823 0824 0825 0826 0827  ALB   0823 0824 0825 0826 0827
MEAN    73   70   62   60   61  MEAN    69   71   70   63   61
%>100    0    0    0    0    0  %>100    0    0    0    0    0
%>95     0    0    0    0    0  %>95     0    0    0    0    0
%>90     0    0    0    0    0  %>90     0    0    0    0    0
%>85     0    0    0    0    0  %>85     0    0    0    0    0
%>80     1    0    0    0    0  %>80     0    0    0    0    0
%>75    26    7    0    0    0  %>75     1   11    2    0    0
%>70    89   50    2    0    1  %>70    41   56   47    2    1

              ASHEVILLE_NC                  ATLANTA_GA
AVL   0823 0824 0825 0826 0827  ATL   0823 0824 0825 0826 0827
MEAN    71   71   68   63   63  MEAN    81   81   78   73   73
%>100    0    0    0    0    0  %>100    0    0    0    0    0
%>95     0    0    0    0    0  %>95     0    0    0    0    0
%>90     0    0    0    0    0  %>90     2    1    0    0    0
%>85     0    0    0    0    0  %>85    16   15    1    0    1
%>80     1    1    0    0    0  %>80    56   61   24    4    7
%>75    11   14    4    0    1  %>75    91   95   81   31   34
%>70    64   64   33    6    7  %>70    99  100   99   76   75

              BALTIMORE_MD               BIRMINGHAM_AL
BWI   0823 0824 0825 0826 0827  BHM   0823 0824 0825 0826 0827
MEAN    74   78   75   69   68  MEAN    85   83   77   73   74
%>100    0    0    0    0    0  %>100    0    0    0    0    0
%>95     0    0    0    0    0  %>95     0    0    0    0    0
%>90     0    0    0    0    0  %>90     9    2    0    0    0
%>85     0    2    0    0    0  %>85    46   28    3    1    2
%>80     1   29    5    0    0  %>80    88   81   25    8   13
%>75    32   86   57    3    2  %>75    99   99   70   37   41
%>70    95  100   96   44   31  %>70   100  100   96   77   76

                 BOSTON_MA                  BUFFALO_NY
BOS   0823 0824 0825 0826 0827  BUF   0823 0824 0825 0826 0827
MEAN    70   72   71   69   66  MEAN    72   70   64   60   61
%>100    0    0    0    0    0  %>100    0    0    0    0    0
%>95     0    0    0    0    0  %>95     0    0    0    0    0
%>90     0    0    0    0    0  %>90     0    0    0    0    0
%>85     0    0    0    0    0  %>85     0    0    0    0    0
%>80     0    0    0    0    0  %>80     0    0    0    0    0
%>75     5   14   13    4    0  %>75    11    3    0    0    0
%>70    48   73   66   41    8  %>70    79   57    1    0    0

             CHARLESTON_SC               CHARLESTON_WV
CHS   0823 0824 0825 0826 0827  CRW   0823 0824 0825 0826 0827
MEAN    83   85   87   82   80  MEAN    80   76   68   64   65
%>100    0    0    0    0    0  %>100    0    0    0    0    0
%>95     0    1    2    0    0  %>95     0    0    0    0    0
%>90     6   11   21    2    2  %>90     0    0    0    0    0
%>85    33   48   71   23   17  %>85     5    0    0    0    0
%>80    76   87   97   70   53  %>80    47   13    0    0    0
%>75    97   99  100   96   86  %>75    93   64    3    0    1
%>70   100  100  100  100   98  %>70   100   97   28    7   10

              CHARLOTTE_NC                  CHICAGO_IL
CLT   0823 0824 0825 0826 0827  ORD   0823 0824 0825 0826 0827
MEAN    78   79   77   72   70  MEAN    74   65   62   62   65
%>100    0    0    0    0    0  %>100    0    0    0    0    0
%>95     0    0    0    0    0  %>95     0    0    0    0    0
%>90     0    0    0    0    0  %>90     0    0    0    0    0
%>85     3    6    1    0    0  %>85     0    0    0    0    0
%>80    31   42   20    1    1  %>80     2    0    0    0    0
%>75    82   87   74   18   13  %>75    38    0    0    0    1
%>70    99   99   98   66   49  %>70    93    5    1    1   12

             CINCINNATI_OH                CLEVELAND_OH
LUK   0823 0824 0825 0826 0827  CLE   0823 0824 0825 0826 0827
MEAN    78   73   66   64   66  MEAN    74   71   64   62   64
%>100    0    0    0    0    0  %>100    0    0    0    0    0
%>95     0    0    0    0    0  %>95     0    0    0    0    0
%>90     0    0    0    0    0  %>90     0    0    0    0    0
%>85     1    0    0    0    0  %>85     0    0    0    0    0
%>80    22    3    0    0    0  %>80     0    0    0    0    0
%>75    88   31    1    0    2  %>75    33    5    0    0    1
%>70   100   83   13    5   17  %>70    96   60    2    1    6

               COLUMBIA_SC                 COLUMBUS_OH
CAE   0823 0824 0825 0826 0827  TZR   0823 0824 0825 0826 0827
MEAN    80   82   82   76   74  MEAN    75   71   63   61   62
%>100    0    0    0    0    0  %>100    0    0    0    0    0
%>95     0    0    0    0    0  %>95     0    0    0    0    0
%>90     0    2    0    0    0  %>90     0    0    0    0    0
%>85     9   21   13    1    1  %>85     0    0    0    0    0
%>80    51   68   74   14   10  %>80     2    0    0    0    0
%>75    92   96   99   61   40  %>75    50   12    0    0    0
%>70   100  100  100   95   78  %>70    97   60    3    0    3

                 DAYTON_OH                  DETROIT_MI
MGY   0823 0824 0825 0826 0827  DET   0823 0824 0825 0826 0827
MEAN    76   71   64   62   64  MEAN    74   69   63   62   64
%>100    0    0    0    0    0  %>100    0    0    0    0    0
%>95     0    0    0    0    0  %>95     0    0    0    0    0
%>90     0    0    0    0    0  %>90     0    0    0    0    0
%>85     0    0    0    0    0  %>85     0    0    0    0    0
%>80     5    0    0    0    0  %>80     2    0    0    0    0
%>75    71   13    0    0    1  %>75    34    1    0    0    0
%>70   100   66    3    1    8  %>70    90   34    0    0    4

             EVANSVILLE_IN             GRAND_RAPIDS_MI
EVV   0823 0824 0825 0826 0827  GRR   0823 0824 0825 0826 0827
MEAN    78   74   67   66   67  MEAN    71   64   60   59   61
%>100    0    0    0    0    0  %>100    0    0    0    0    0
%>95     0    0    0    0    0  %>95     0    0    0    0    0
%>90     0    0    0    0    0  %>90     0    0    0    0    0
%>85     0    0    0    0    0  %>85     0    0    0    0    0
%>80    23    5    0    0    0  %>80     0    0    0    0    0
%>75    89   36    1    1    5  %>75     8    0    0    0    0
%>70   100   83   20   14   28  %>70    66    2    0    0    2

             GREENSBORO_NC               HUNTSVILLE_AL
GSO   0823 0824 0825 0826 0827  HSV   0823 0824 0825 0826 0827
MEAN    76   77   74   69   67  MEAN    83   82   75   71   72
%>100    0    0    0    0    0  %>100    0    0    0    0    0
%>95     0    0    0    0    0  %>95     0    0    0    0    0
%>90     0    0    0    0    0  %>90     4    0    0    0    0
%>85     0    1    0    0    0  %>85    33   15    1    0    2
%>80    11   18    7    0    0  %>80    82   71   12    4    9
%>75    60   70   44    6    5  %>75    99   98   47   21   30
%>70    96   98   88   36   26  %>70   100  100   85   57   62

           INDIANAPOLIS_IN                KNOXVILLE_TN
IND   0823 0824 0825 0826 0827  TYS   0823 0824 0825 0826 0827
MEAN    75   69   62   62   64  MEAN    81   79   72   67   68
%>100    0    0    0    0    0  %>100    0    0    0    0    0
%>95     0    0    0    0    0  %>95     0    0    0    0    0
%>90     0    0    0    0    0  %>90     2    1    0    0    0
%>85     0    0    0    0    0  %>85    17    8    0    0    0
%>80     1    0    0    0    0  %>80    54   38    3    0    1
%>75    45    4    0    0    1  %>75    88   79   24    4    7
%>70    98   38    1    1    9  %>70    99   97   70   28   34

              LEXINGTON_KY               LOUISVILLE_KY
LEX   0823 0824 0825 0826 0827  SDF   0823 0824 0825 0826 0827
MEAN    80   76   67   65   66  MEAN    80   76   68   66   68
%>100    0    0    0    0    0  %>100    0    0    0    0    0
%>95     0    0    0    0    0  %>95     0    0    0    0    0
%>90     0    0    0    0    0  %>90     0    0    0    0    0
%>85     3    0    0    0    0  %>85     6    0    0    0    0
%>80    47    9    0    0    0  %>80    48    8    0    0    0
%>75    96   60    2    1    2  %>75    94   57    2    1    5
%>70   100   97   24   11   21  %>70   100   95   25   13   29

                MEMPHIS_TN                    MIAMI_FL
MEM   0823 0824 0825 0826 0827  MIA   0823 0824 0825 0826 0827
MEAN    83   82   75   72   73  MEAN    94   95   95   95   94
%>100    0    0    0    0    0  %>100    9   18   16   17   10
%>95     0    0    0    0    0  %>95    40   50   48   51   43
%>90     1    1    0    0    0  %>90    81   85   85   86   84
%>85    26   19    1    1    3  %>85    98   98   99   99   99
%>80    85   78   11    8   14  %>80   100  100  100  100  100
%>75   100   99   54   30   38  %>75   100  100  100  100  100
%>70   100  100   92   65   69  %>70   100  100  100  100  100

              MILWAUKEE_WI                   MOBILE_AL
MKE   0823 0824 0825 0826 0827  MOB   0823 0824 0825 0826 0827
MEAN    71   63   61   61   64  MEAN    89   88   88   83   82
%>100    0    0    0    0    0  %>100    0    0    0    0    0
%>95     0    0    0    0    0  %>95     7    3    4    2    1
%>90     0    0    0    0    0  %>90    37   31   33   11    8
%>85     0    0    0    0    0  %>85    80   80   81   38   31
%>80     1    0    0    0    0  %>80    98   99   99   74   66
%>75    12    0    0    0    2  %>75   100  100  100   94   91
%>70    68    3    1    3    9  %>70   100  100  100   99   99

              NASHVILLE_TN            NEW_YORK_CITY_NY
BNA   0823 0824 0825 0826 0827  NYC   0823 0824 0825 0826 0827
MEAN    83   80   72   69   70  MEAN    73   75   76   70   68
%>100    0    0    0    0    0  %>100    0    0    0    0    0
%>95     0    0    0    0    0  %>95     0    0    0    0    0
%>90     2    0    0    0    0  %>90     0    0    0    0    0
%>85    29    5    0    0    0  %>85     0    0    0    0    0
%>80    83   53    2    1    2  %>80     0    2    7    0    0
%>75    99   96   21   10   15  %>75    22   47   59    5    1
%>70   100  100   69   40   49  %>70    87   98   97   57   29

                NORFOLK_VA                  ORLANDO_FL
ORF   0823 0824 0825 0826 0827  ORL   0823 0824 0825 0826 0827
MEAN    75   79   80   74   73  MEAN    91   91   92   92   91
%>100    0    0    0    0    0  %>100    5    5    8    3    2
%>95     0    0    0    0    0  %>95    23   23   30   22   16
%>90     0    0    0    0    0  %>90    56   58   63   65   56
%>85     0    1    2    0    0  %>85    85   87   89   94   91
%>80     1   32   45    2    1  %>80    97   98   98  100   99
%>75    57   95   96   42   23  %>75   100  100  100  100  100
%>70   100  100  100   94   81  %>70   100  100  100  100  100

           PHILADELPHIA_PA               PITTSBURGH_PA
PHL   0823 0824 0825 0826 0827  PIT   0823 0824 0825 0826 0827
MEAN    71   75   75   68   67  MEAN    74   73   65   61   62
%>100    0    0    0    0    0  %>100    0    0    0    0    0
%>95     0    0    0    0    0  %>95     0    0    0    0    0
%>90     0    0    0    0    0  %>90     0    0    0    0    0
%>85     0    0    0    0    0  %>85     0    0    0    0    0
%>80     0    3    4    0    0  %>80     3    1    0    0    0
%>75     7   54   50    2    0  %>75    43   25    0    0    0
%>70    73   98   96   30   13  %>70    93   87    8    0    1

               PORTLAND_ME               PROVIDENCE_RI
PWM   0823 0824 0825 0826 0827  PVD   0823 0824 0825 0826 0827
MEAN    68   69   69   68   64  MEAN    70   71   72   69   65
%>100    0    0    0    0    0  %>100    0    0    0    0    0
%>95     0    0    0    0    0  %>95     0    0    0    0    0
%>90     0    0    0    0    0  %>90     0    0    0    0    0
%>85     0    0    0    0    0  %>85     0    0    0    0    0
%>80     0    0    0    0    0  %>80     0    0    0    0    0
%>75     1    2    1    0    0  %>75     4    4   14    4    0
%>70    21   31   30   19    2  %>70    48   65   74   38    7

         RALEIGH-DURHAM_NC                 RICHMOND_VA
RDU   0823 0824 0825 0826 0827  RIC   0823 0824 0825 0826 0827
MEAN    77   79   79   72   70  MEAN    75   79   77   71   69
%>100    0    0    0    0    0  %>100    0    0    0    0    0
%>95     0    0    0    0    0  %>95     0    0    0    0    0
%>90     0    0    0    0    0  %>90     0    0    0    0    0
%>85     1    5    2    0    0  %>85     0    2    2    0    0
%>80    19   39   32    1    1  %>80     4   33   23    0    0
%>75    69   86   87   18   11  %>75    51   86   74   11    8
%>70    97   99  100   74   49  %>70    97  100   98   59   40

               SAVANNAH_GA              TALLAHASSEE_FL
SAV   0823 0824 0825 0826 0827  TLH   0823 0824 0825 0826 0827
MEAN    85   86   87   83   82  MEAN    89   87   88   85   84
%>100    0    0    0    0    0  %>100    1    0    0    0    0
%>95     1    2    2    0    1  %>95    10    4    2    2    1
%>90    12   16   22    6    7  %>90    39   26   28   15   11
%>85    47   56   74   32   29  %>85    79   68   83   50   42
%>80    85   90   98   75   65  %>80    97   95   99   85   80
%>75    98   99  100   96   91  %>75   100  100  100   98   97
%>70   100  100  100  100   99  %>70   100  100  100  100  100

                  TAMPA_FL               WASHINGTON_DC
TPA   0823 0824 0825 0826 0827  DCA   0823 0824 0825 0826 0827
MEAN    93   93   94   93   92  MEAN    74   79   75   69   68
%>100   18   14   16    8    5  %>100    0    0    0    0    0
%>95    41   38   41   37   26  %>95     0    0    0    0    0
%>90    69   69   71   77   66  %>90     0    0    0    0    0
%>85    89   90   91   96   93  %>85     0    4    0    0    0
%>80    97   98   98  100   99  %>80     1   36    7    0    0
%>75   100  100  100  100  100  %>75    35   87   53    3    2
%>70   100  100  100  100  100  %>70    94  100   95   40   28

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