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Ag Weather Impacts
by Dennis Hull, click here for bio

Program: Ag Weather Impact
Date: August 06, 2019

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It’s fair week in Grandview and Hermiston and it’s gonna start off hot. An upper level southerly flow is bringing the hot air to the Columbia Basin and this will continue into Wednesday. Temperatures will range between 98 and 103 which is about 10 to 12 degrees above normal. This heat will bring severe heat stress to cattle so if you need to move cattle, it will be best during the morning hours and sprinkling or shade will be good for the afternoon. Look for afternoon humidity in the 10 to 15 percent range today, so fire danger while harvesting wheat will be very high. Humidity will be significantly higher after Wednesday. Areas of clouds will keep overnight temperatures 65 to 70 which is also about 10 degrees above normal. You can expect a Pacific cold front to sweep over the area Thursday. This will not only get rid of the hot weather, but also bring an increasing chance for showers and thunderstorms for Thursday into Sunday. Rainfall amounts will be mainly a quarter inch or less. Hay cut today has a risk of baling delays later this week given the daily chance for rain. Daily crop water use will decrease by this weekend. For the next 7 days, alfalfa, corn, potatoes, and hops will need between an inch and a half and 3/4. Lawns will use about and inch and a quarter. Look for spraying conditions to be less favorable beginning Thursday with the chance for rain and increasing winds.

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