Final Forecast For The Iron Horse Bicycle Classic

Updated at 4 am Saturday

Here is the updated forecast for Saturday. Once again, the main changes are slight variations in wind directions and wind speeds.  We should have a slightly cooler start to the morning than the weather models had been predicting. The winds look like they will be slightly calmer than what was being predicted yesterday. Precipitation chances should be below 10% before 1 pm. From 2 pm on, we will have a 15% to 20% chance of thunderstorms for the passes and Silverton.

I have edited the summary and forecast grids with the changes.

At the start time in Durango, the temperatures will be in the upper 40s to low 50s. Winds for the event will start out of the northeast. The winds will transition by mid-morning from the southeast to the south. Between noon and 3 pm, winds will range from 10 mph to 15 mph. The high temperature in Durango on Saturday will peak from the low to mid-80s. The high temperature in Silverton will be in the upper 60s to low 70s. Skies will start off mostly sunny, becoming partly cloudy by mid-morning and ending up mostly cloudy by this afternoon. At this point, there is a 10% to 20% chance of very light precipitation between noon and 4 pm on the passes and in Silverton.

Here are the details.

Durango

6 am Temp 41 to 44 degrees, winds N 3 to 5 mph

7 am Temp 46 to 48 degrees, winds N 2 to 4 mph

8 am Temp 52 to 55 degrees, winds ENE 2 to 4 mph

High temperature for Saturday 82 to 84 degrees

Purgatory

7 am Temp 41 to 44 degrees, winds E 2 to 4 mph

8 am Temp 49 to 52 degrees, winds ESE 3 to 5 mph

9 am Temp 55 to 59 degrees, winds ESE 3 to 5 mph

10 am Temp 60 to 63 degrees, winds SE 5 to 7 mph

11 am Temp 64 to 66 degrees, winds S 8 to 10 mph

Coal Bank Pass

7 am Temp 4o to 42 degrees, wind chill 38 to 40, winds ESE 4 to 6 mph

8 am Temp 45 to 49 degrees, wind chill 45, winds ESE 4 to 6 mph

9 am Temp 50 to 52 degrees, winds ESE 4 to 6 mph

10 am Temp 52 to 54 degrees, winds ESE 6 to 8 mph

11 am Temp 54 to 56 degrees, winds S to 10 mph.

Noon Temp 56 to 58 degrees, winds S 8 to 10 mph.

Molas Pass 

8 am Temp 45 to 47 degrees, winds ESE 2 to 4

9 am Temp 51 to 53 degrees,  winds ESE 3 to 5 mph

10 am Temp 54 to 56 degrees, winds SE 5 to 7 mph

11 am Temp 56 to 58 degrees, winds S 7 to 9 mph

Noon  Temp 59 to 61 degrees, winds S 10 to 12 mph

1 pm Temp 59 to 61 degrees, winds S 10 to 12mph

2 pm Temp 59 to 61 degrees, winds  S 12 to 14  mph

Silverton

9 am Temp 50 to 52 degrees, winds SE 2 to 4 mph

10 am Temp 56 to 58 degrees, winds SSE  4 to 6 mph

11 am Temp 62 to 64 degrees, winds S 6 to 8 mph

12 pm Temp 66 to 68 degrees, winds S 10 to 12 mph

1 pm Temp 68 to 70 degrees, winds S 12 to 14 mph

2 pm Temp 69 to 71 degrees, winds S 12 to 14 mph

3 pm Temp 69 to 71 degrees, winds S 12 to 14

 

 

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