AWIS Weather Forecast: Frost Risk April 22-23

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AWIS Weather Forecast: Frost Risk April 22-23

A wider frost- and freeze risk for North Carolina and the Mid-Atlantic (Figure 1) is predicted for coming Thursday and Friday. There is an increased risk of bud and shoot damage, especially in the Foothills and parts of the Yadkin Valley.

Please read our new publication on Prevention and Management of Frost Injury in Wine Grapes.

General Weather Discussion

A broad upper level low pressure trough will continue across the Eastern 1/2 of the USA into the weekend.

Multiple weaker disturbances and associated frontal boundaries will move through this upper level trough from both the NW and W/SW over the next couple days. This makes timing of clouds and winds a little more difficult than even normal, particularly from North Carolina through the Mid-Atlantic. The next strongest disturbance and associated frontal boundary will move through the area late Tuesday night through early Wednesday afternoon. Gusty south winds of 10-20 ahead of front, turning to West then NW behind the front later Wednesday into early Wednesday evening. Not a lot of rain is expected with this system, but local totals of 1/4 inch or more, mainly Mid Atlantic Region.

Frost and freeze potential Thursday morning greatest across the Southern Appalachians and foothills, with frost into the Piedmont areas of Northern South Carolina into Central NC. Areas further to the Northeast and closer to the Atlantic may have more clouds and wind to help limit frost and/or freezing temperatures.

Larger areas from the Northern Interior Southeast to the Interior Mid Atlantic will have frost and/or freeze risks on Friday morning.  Winds will be lighter most areas Friday morning, allowing radiational conditions to take hold with ground temperatures 3-6 degrees colder in some areas than temperatures normally taken at the 5 foot levels. Clouds will also be less prevalent many areas later Thursday night through sunrise Friday morning.

Min. Temperature Forecasts

Minimum temp forecasts for Thursday map

Minimum temp forecasts for Friday map

Figure 1: Minimum Temperatures forecasts for the region on Thursday (04/22/2021) and Friday (04/23/2021). With winds declining, frost risks are given in the North Carolina mountains, foothills, and Piedmont especially at the mornings of both days (provided by AWIS Weather Services.)

Please find your local weather forecast below under “hourly forecast.”

Winds are supposed to slow down on Thursday morning, increasing the risk of frost significantly. However, wind gusts on Thursday might still affect the efficacy of frost protection measures such as sprinkler systems or wind machines. We will keep you informed as the situation unfolds. Please read: Prevention and Management of Frost Injury in Wine Grapes.

Hourly Forecast

(provided by  AWIS Weather Services)

North Carolina:

FORECASTS ARE AVAILABLE FOR THESE LOCATIONS:
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

South Carolina:

FORECASTS ARE AVAILABLE FOR THESE LOCATIONS:
Aiken_AP Anderson_Co_Air Barnwell_AP Beaufort_Cnty_AP
Beaufort_SC Bennettsville_Je Camden_AP Charleston_Exec_
Charleston_Muni Cheraw_AP Chester_AP Clemson-Clemson
Columbia-Columb Columbia/McEnti Columbia_Metro Conway_AP
Darlington Florence_SC Georgetown_AP_SC Greenville_Donal
Greenville_Down Greenville-Spart Greenwood-Green Hartsville_AP
Hilton_Head_AP Kingstree_AP Lancaster-McWhir Laurens_AP
Manning_AP Marion_AP_SC Moncks_Corner_AP Mount_Pleasant_A
Myrtle_Beach Newberry_AP North_Myrtle_Be Orangeburg-Oran
Pickens_AP Rock_Hill Spartanburg_Down Summerville_AP
Sumter_AP Sumter_SC Walterboro_AP Winnsboro_AP

Georgia:

FORECASTS ARE AVAILABLE FOR THESE LOCATIONS:
Albany_Municipa Alma/Bacon_Co Americus_AP Athens_Municipa
Atlanta/DeKalb Atlanta/Fulton Atlanta_Intl_Ar Atlanta_Paulding
Augusta/Bush_Fi Augusta_Daniel_F Bainbridge_GA Blakely_AP
Brunswick_GA Brunswick/Glync Canton_GA Carrollton_AP
Cartersville_AP Claxton_AP Columbus_GA Covington_GA_AP
Dalton-Dalton_M Douglas_Muni Dublin/WHBarron Fitzgerald_AP
Fort_Benning Ft_Stewart/Wrig Gainesville_AP_G Greensboro_GA
Homerville_AP Hunter_(AAF) Jesup_AP La_Grange
Lakeland Lawrenceville_AP Macon_AP Marietta
Marietta/Cobb Milledgeville_AP Moultrie_Muni_AP Newnan-Newnan_C
Peachtree_City Rome_GA Savannah Statesboro_GA
Swainsboro_AP Sylvania_AP_GA Thomaston_AP Thomasville_AP
Thomson_GA Tifton_AP Valdosta Valdosta/Moody
Vidalia Warner_Robins_A Washington_GA Waycross_AP
Winder_AP

Virginia:

FORECASTS ARE AVAILABLE FOR THESE LOCATIONS:
Abingdon Ashland_VA Charlottesville Chesapeake-Ches
Culpeper Danville Dublin/New_Riv Emporia_VA
Farmville Fentress_Naval_A Fort_Belvoir/Da Fort_Eustis/Fel
Franklin/J_B_Ro Hillsville Hot_Springs/Ing Jonesville_AP
Langley_AFB Leesburg/Godfre Louisa-Louisa_C Lynchburg
Manassas_Muni(A Marion/Wythev Martinsville Mecklenburg/Bru
Melfa/Accomack Newport_News Norfolk_Hampton_ Norfolk_NAS
Norfolk_VA Oceana Orange_VA Petersburg_(AWO
Quantico Richlands_AP Richlands_VA Richmond
Richmond_Chester Roanoke Shannon_Arpt Stafford_AP_VA
Staunton-Shenan Suffolk-Suffolk Tappahannock_AP Virginia_Tech_A
Wakefield_AP Wallops_Island Warrenton_Fauqui Washington_Dulle
West_Point_VA Williamsburg_VA Winchester_Rgnl Wise/Lonesome_P

Maryland:

FORECASTS ARE AVAILABLE FOR THESE LOCATIONS:
Aberdeen Andrews_AFB Annapolis_Naval Baltimore_Sci_Ce
Baltimore/Wash Cambridge/Dorche College_Park_AP Cumberland_AP
Easton_MD Fort_Meade Frederick_MD Gaithersburg_AP
Hagerstown_AP Leonardtown Middle_River Oakland_MD_AP
Ocean_City_AP Patuxent_River Salisbury Stevensville_AP
St_Inigoes/Webst Washington_DC_AP Westminster_AP

This post was created under the consultation and with permission of AWIS Weather Services