With extended wet conditions this season, every precipitation event going forward has the potential to bring harvest activity to a grinding halt. The big question is how extensive will the delays be. Climatologist Al Dutcher offers good and bad news for some.
Climatologist Al Dutcher looks at freeze risks for various sites, maturities and planting dates for corn. In some areas slightly warmer-than-normal August temperatures reduced freeze risk while in others, conditions were cooler than normal.
Table 1. The odds (%) of an early fall hard freeze (28°F or less), calculated using 2019 GDD accumulations from emergence to August 31 and applying 1981-2010 GDD accumulations from September 1 to the average first hard freeze date. The table (stacked in two parts) shows the odds for four emergence dates.
Table 1. The odds (%) of an early fall hard freeze (28°F or less), calculated using 2019 GDD accumulations from emergence to July 31 and applying 1981-2010 GDD average accumulations for August 1 to the average first hard freeze date. The table (stacked in two parts) shows the odds for four emergence dates.
A lot of factors can affect corn pollination success, including recent and predicted high heat and high humidity. This explains how environmental conditions influence the pollination process and how a cool down later this weekend may be helpful.
After a cooler and wetter than normal spring, Nebraska is finally moving into a much warmer period in the first half of July, notes Climatologist Al Dutcher. The greatest likelihood for widespread moisture will be in the evening hours July 1-4 in the Panhandle.