Pictured: The 12Z GFS OP day 6-10 temperature anomaly and rainfall total forecast via CWG/Storm Vista Models.
The midday operational GFS model run was strikingly cool in the U.S. Growing Areas especially days 11-15. The incoming cool pattern initiates in the 6-10 day period following a heavy rainfall episode centered on Kansas City where the model indicates 6 in. of rain is possible. Several in. of rain is indicated by the model from Kansas to the Chicago area. A moderate to strong cool pattern follows.
In the 11-15 day period the model is potentially record cool. Early July averages nearly 20 degrees below normal on the Kansas/Nebraska border. The rain belt remains although less excessive stretching from Kansas to Missouri.
Climate support for these cool changes is weak. However, the general theme of cooler RATHER THAN warmer in the extended-range is gaining credibility.
Pictured: The 12Z GFS OP day 11-15 temperature anomaly and rainfall total forecast via CWG/Storm Vista Models.
