North Carolina State University
Cucurbit Downy Mildew Forecast
*** Epidemic Update - 29 August: New counties in MD, PA, NC, NY, and CT; updates from existing areas. Downy mildew has been confirmed in Prince George's County, MA in the sentinel plot near Upper Marlboro. Please see the Epidemic History page for more details.
Forecast Summary: Wednesday, September 3, 2008
Weather - Central & Eastern U.S. / southern Canada: Rainy weather from the lower MS Valley NNE into the western Great Lakes; dry weather elsewhere; TS / Hurricane Hanna to enter the picture late in the Southeast. The remnants of Gustav will be merging with a frontal system making its way through the nation's midsection, resulting in rain, showers, and thunderstorms. The northern part of the front will be pushed through southern Canada and into the Northeast on Thursday. High pressure to the east will insure sunny to partly cloudy skies and dry weather for nearly all other areas. By Thursday night ... the effects of Hanna will begin to appear along the south Atlantic coast in the form of increasing clouds and a chance of showers. Hanna will make landfall somewhere along the coast on Friday, and is currently forecast to continue quickly north and northeast afterwards. Quite warm to the south and east of the frontal system with highs in the 80's and 90's, but only 60's and 70's behind it.
OUTLOOK
Wednesday and Thursday - Higher risks along a swath of land stretching from the lower MS Valley to the Great Lakes.
Wednesday: HIGH Risk for cucurbits in LA and southwest MS. Moderate Risk for central and southern MI, northeast IN, and northwest OH. Low Risk otherwise.
Thursday: HIGH Risk for cucurbits in central and southern MI, northern IN, southeast WI, and northern IL. Moderate Risk for cucurbits in southern LA, central and northern OH, central IN, and southern Ontario. Low Risk otherwise.
Forecast details for the known sources are provided below.
TK
- Southern GA / northern FL
- Charleston, SC
- Eastern NC / southeast VA
- DelMarVa / eastern MD / NJ / eastern PA
- Southeast TX / western and southeast LA
- Western and central MI
- Southern Ontario / southeast MI / northern and central OH, northwest PA
- Western NY / southern Quebec
- West-central and western NC; York County, SC
- Southwest and central PA
- Fortville, IN
- Southern New England (CT, MA) / Long Island