Latest temperature (min, max, mean) forecast for Whitehorse

Recent observations
YYYYMMDD     OBS   Min   Max  Mean
20120510     OBS  -2.8   9.2   3.2
20120511     OBS -99.9 -99.9 -99.9
20120512     OBS   1.4  10.4   5.9
20120513     OBS -99.9 -99.9 -99.9
20120514     OBS  -0.1   8.9   4.4
20120515     OBS -99.9 -99.9 -99.9
20120516     OBS -99.9 -99.9 -99.9
20120517     OBS  -0.9  13.1   6.1
20120518     OBS -99.9 -99.9 -99.9
20120519     OBS -99.9 -99.9 -99.9
20120520     OBS  -1.1  14.2   6.5
Latest forecasts
                                  Confidence EnsembleSpread
YYYYMMDD     DAY   Min   Max  Mean Min Max   Min   Max
20120521     000   4.   19.   12.  -   Hi    0.2   0.2
20120522     001   7.   21.   14.  -   Hi    0.5   0.9
20120523     002   8.   21.   14.  -   Hi    0.8   0.6
20120524     003   6.   21.   13.  -   Hi    1.3   1.3
20120525     004   6.   20.   13.  -   Hi    1.5   1.6
20120526     005   5.   19.   12.  -   -     1.9   1.7
20120527     006   3.   16.    9.  -   -     1.4   1.9
20120528     007   3.   16.    9.  -   -     2.6   2.8
20120529     008   2.   14.    8.  Lo  -     1.9   2.6
20120530     009   3.   15.    9.  -   -     2.9   2.7
20120531     010   4.   17.   10.  -   -     2.3   2.4
20120601     011   6.   19.   13.  -   -     2.5   2.2
20120602     012   7.   20.   14.  -   -     2.6   0.9
20120603     013   8.   19.   13.  -   -     4.2   3.6
20120604     014   6.   19.   13.  -   Lo    4.1   3.6
20120605     015   6.   19.   13.  -   Lo    3.1   3.8

-99.9 denotes missing data

For forecasts:

• 'Hi' - denotes that recent forecast errors for the specified forecast length (column 'DAY') have had a standard deviation over the past 30 days of less than 1.5C,
• '- ' - as 'Hi' but in the range 1.5C to 3C.
• 'Lo' - as 'Hi' but greater than 3C.
• The values in the 'Ensemble Spread' columns indicate the standard deviation of the spread of the forecasts between the ensembles. Thus, a value of 1.0 indicates that approximately 2/3rds of the ensemble members lie in the range -1.0C to +1.0C about the mean of the ensemble forecasts.
• The larger the value of the 'Ensemble Spread' the greater the uncertainty of the forecast as the ensemble members have a larger variation for the forecast for the day shown.