Tuesday, October 05, 2010

Dry Until Friday

Temperatures just before sunrise were in the 50-55 range this morning. Some places in the Black Hills saw morning lows only in the upper 60s:  Spearfish, Custer State Park and Mt. Rushmore.

A bubble of warm air is overhead and that will allow the temperature to shoot up into the 70s this morning and then level out in low 80s  this afternoon as a cold front moves through. That cold front will bring us gusty north winds to 25 mph after 2pm. Clouds will gradually thicken up this afternoon, too.

Tomorrow's temperatures will be back to near-normal with readings in around 70, then we'll be back to the upper 70s on Thursday.

The atmosphere moistens up Friday with an increase in the cloud cover and by late in the day there will be an increasing chance of rain. There will be a few showers Friday night into Saturday morning morning and then the clouds will thin out Saturday afternoon.

The sea-surface temperatures of the northeast Pacific Ocean are cooling down and will bring us a dramatic shift in weather towards the end of the month - and set us up for a colder-than-normal November, December, January and February.

Sea Surface Temperatures
Sea surface temperatures compared to normal. Blues show areas 0.5-3.0C colder than normal, yellow indicates 0.5-2.0C warmer than normal and red is more than 3C warmer than normal.