AWIS Weather Forecast 8/4/2021

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AWIS Weather Forecast 8/4/2021

As we come closer to harvest, weather forecasts become more important. In collaboration with AWIS Weather Service, we cover the next 7 days for North Carolina viticulture regions, including diurnal temperature ranges.

General Weather Discussion

A very slow moving frontal boundary near the Atlantic Coast, combined with an East Coast Upper level trough, has kept it on the wet side recently, mainly over the Eastern Carolina’s to Northeast Florida. One more upper level disturbance will move through the Eastern US late this week, keeping scattered to numerous showers around. Showers will be more scattered next week.

On the temperature side, a warming to near to a little above seasonal levels is expected late this weekend, lasting most of next week. This means maximum temperatures mostly upper 80s to lower 90s, minimums upper 60s to lower 70s.

This puts most areas in the 15-20 degree diurnal temperature ranges, 20-25 higher elevations of the Appalachians.

Looking further ahead, there are signs that the latter half of August will trend to a more frequent wetter and cooler period. For now, no immediate tropical threat is indicated into next week. But will be watching a weak system currently in the mid-far Southern Atlantic as it moves West / Northwest into next week.

Diurnal Temperature Ranges

Diurnal temperature ranges are important for ripening. Over the next 7 days, highest levels of diurnal temperature will exceed 25 F and will be seen in the Yadkin Valley AVA and neighboring counties from Thursday to Friday, 8/6/2021 (Figure 1).

Temperature range forecast chart

Figure 1: Predicted diurnal temperature ranges for Thursday-Friday, 8/6/2021.

10-Day Forecast for Some Regions

Ahoskie-Tri-Cou Albemarle_AP Andrews Asheboro
Asheville_Munic Beaufort-Michae Boone_NC Burlington-Burl
Cape_Hatteras_AG Chapel_Hill-Hor Charlotte Cherry_Point
Clinton_NC Concord_NC Currituck_NC Edenton-Northea
Elizabeth_City Elizabethtown_NC Erwin-Harnett_C Fayetteville_AP
Fort_Bragg/Simm Franklin/Macon_C Gastonia-Gaston Goldsboro_AFB
Goldsboro_NC Greensboro Greenville_AP_NC Hickory
Jacksonville Jacksonville_(A Jefferson_AP_NC Kenansville-Dup
Kill_Devil_Hills Kinston_AP Lexington-David Lincolnton_AP
Louisburg_NC Lumberton_AP_NC Mackall_AAF Manteo/Dare_Co
Maxton Mcalf_Bogue_Fiel Monroe_AP_NC Morganton-Morga
Mount_Airy-Moun New_Bern North_Wilkesbor Oxford_NC
Piney_Island_Bom Pope_AFB Raleigh-Durham Reidsville_AP
Roanoke_Rap_AP Roanoke_Rapids_R Rockingham_NC Rocky_Mount-Wils
Roxboro_AP Rutherfordton Salisbury-Rowan Sanford_NC
Shelby_AP_NC Smithfield_AP Southern_Pines Southport_NC
Statesville-Sta Tarboro_AP Wadesboro_AP Washington-Warr
Whiteville_NC Wilmington_AP_NC Winston-Salem