Some Eastern NC Areas Will Likely See Frost Again Saturday Morning (5pm, Friday, March 9, 2018)
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Collapse ▲Good afternoon,
In a quick review of AWIS Hourly Forecasts for locations across North Carolina, I did note that Fayetteville Fayetteville 3.10 and Elizabethtown Elizabethtown are potentially going to see frost Saturday morning. And, what is interesting to note is that the minimum air temp. for Elizabethtown will only be 36 F (at weather shelter height of 2 meters, or 6.56 ft).
Fig. 1. Minimum temperatures for North Carolina on Saturday morning
Recap of this last night and this morning: In speaking to a grower in Kinston area I learned that there was a BIG FROST this Friday morning, and frost started as early as 2 a.m. Apparently, blossoms in direct contact with the cover were killed. Maybe the Louisiana “raised cover” system is starting to make a little more sense (Fig. 2)? It was also the case that running the drip under cover helped last night. In Kinston area it got down into the range of 26 F. Over in piedmont, I saw one grower location near Greensboro that got down to 23 F this morning (yikes). Once you get to 24 F, you have pretty much run out of all safety margin with a 1 or 1.2 oz cover. That’s double-cover time, or possibly run the drip system to try to gain another a degree of protection. The best tool to tell you the true blossom temperature is a digital thermometer with thermocouple that is inserted in blossom (Fig. 3)/
Fig. 2. By providing a support structure to raise the cover, growers in LA can eliminate any frost losses due to blossoms coming in direct contact with the cover.
Fig. 3. Digital thermometer is a very useful tool for accurately determining blossom temperature. This unit cost about $232 before tax.
Photos from Chesnee, SC today at 2 p.m.
Fig. 4. Camarosa fresh dugs (from PEI) with about 15 blossoms/plant – covers just came off today. The entire acreage at this farm location in Chesnee, SC, had row cover protection – you can see covers off to the side.
Fig. 5. Close-up of Camarosa fresh dugs — obviously these blooms survived the recent frost events. By far, the fresh dugs are the most advanced in plant size and bloom.
Fig. 6. Cut-offs of Camarosa had about 3-5 blooms today -sorry about the cap Wolf Pack fans.
Here is the NC Frost/Freeze Forecast for tonight
AWIS Weather Services, Inc. North Carolina Frost/Freeze Forecast Produced at 306 p.m. CST on Fri Mar 9 2018 ... Forecast for Tonight ... Northeast NC Coast Currituck/Camden/Pasquotank/Tyrrell Counties **** NEAR FREEZING COLD LOCATIONS **** **** LITTLE/NO FROST DUE TO DRY AIR **** Lowest Temperatures: 35 - 41 Elizabeth_City Min 35 Range Dewpoint Temps: 19 - 31 Range Wetbulb Temps: 31 - 38 AVG Wind Direction/Speed: SW 5 Long Periods of Calm AVG Sky Condition: Partly Cloudy Extended Forecast: Range of Lowest Min Temperatures in the Above Zones Min Temps Valid For Morning of Given Date (May NOT include ALL cold pockets) 03/11/18 03/12/18 03/13/18 03/14/18 03/15/18 03/16/18 -------- -------- -------- -------- -------- -------- 40 - 48 38 - 44 34 - 40 32 - 38 34 - 40 39 - 45 -------- East Central/SE NC Coast Carteret/Pamlico Counties **** NEAR FREEZING COLD LOCATIONS **** **** LITTLE IF ANY FROST **** Lowest Temperatures: 34 - 39 Morehead_City Min 39 Range Dewpoint Temps: 24 - 34 Range Wetbulb Temps: 32 - 39 AVG Wind Direction/Speed: SW 5 Periods of Calm AVG Sky Condition: Mostly Cloudy Extended Forecast: Range of Lowest Min Temperatures in the Above Zones Min Temps Valid For Morning of Given Date (May NOT include ALL cold pockets) 03/11/18 03/12/18 03/13/18 03/14/18 03/15/18 03/16/18 -------- -------- -------- -------- -------- -------- 45 - 47 40 - 42 34 - 37 32 - 35 30 - 34 35 - 43 -------- Southeast NC NWS FORECAST ZONES 87-90,96-101 **** NEAR FREEZING COLD LOCATIONS **** **** LITTLE/NO FROST DUE TO DRY AIR **** Lowest Temperatures: 35 - 40 Elizabethtown Min 38 Range Dewpoint Temps: 20 - 34 Range Wetbulb Temps: 35 - 40 AVG Wind Direction/Speed: SW 5 Long Periods of Calm AVG Sky Condition: Mostly Cloudy Extended Forecast: Range of Lowest Min Temperatures in the Above Zones Min Temps Valid For Morning of Given Date (May NOT include ALL cold pockets) 03/11/18 03/12/18 03/13/18 03/14/18 03/15/18 03/16/18 -------- -------- -------- -------- -------- -------- 45 - 49 37 - 44 32 - 35 31 - 35 28 - 33 36 - 40 -------- North-Central NC Franklin County Area **** FREEZE COLD LOCATIONS **** **** LITTLE IF ANY FROST DUE TO CLOUDS **** Lowest Temperatures: 31 - 39 Louisburg Min 31 Durations at/below 32: 0 - 2 Range Dewpoint Temps: 17 - 27 Range Wetbulb Temps: 28 - 37 AVG Wind Direction/Speed: V 2 Long Periods of Calm AVG Sky Condition: Cloudy Extended Forecast: Range of Lowest Min Temperatures in the Above Zones Min Temps Valid For Morning of Given Date (May NOT include ALL cold pockets) 03/11/18 03/12/18 03/13/18 03/14/18 03/15/18 03/16/18 -------- -------- -------- -------- -------- -------- 36 - 44 28 - 39 27 - 33 24 - 31 25 - 33 33 - 40 -------- North/Central NC Alamance County Area **** NEAR FREEZING COLD LOCATIONS **** **** LITTLE IF ANY FROST DUE TO CLOUDS **** Lowest Temperatures: 33 - 38 Graham_AG Min 35 Range Dewpoint Temps: 17 - 27 Range Wetbulb Temps: 32 - 37 AVG Wind Direction/Speed: SE 3 Long Periods of Calm AVG Sky Condition: Cloudy Extended Forecast: Range of Lowest Min Temperatures in the Above Zones Min Temps Valid For Morning of Given Date (May NOT include ALL cold pockets) 03/11/18 03/12/18 03/13/18 03/14/18 03/15/18 03/16/18 -------- -------- -------- -------- -------- -------- 38 - 43 29 - 35 27 - 32 26 - 31 26 - 31 35 - 40 -------- South/Central NC Richmond County Area **** NEAR FREEZING COLD LOCATIONS **** **** LITTLE IF ANY FROST DUE TO CLOUDS **** Lowest Temperatures: 35 - 38 Ellerbe Min 38 Range Dewpoint Temps: 20 - 32 Range Wetbulb Temps: 35 - 38 AVG Wind Direction/Speed: SW 5 Periods of Calm AVG Sky Condition: Cloudy Extended Forecast: Range of Lowest Min Temperatures in the Above Zones Min Temps Valid For Morning of Given Date (May NOT include ALL cold pockets) 03/11/18 03/12/18 03/13/18 03/14/18 03/15/18 03/16/18 -------- -------- -------- -------- -------- -------- 43 - 47 36 - 39 29 - 34 29 - 33 29 - 31 33 - 39 -------- Interior/EC-SE NC Wayne County Area **** NEAR FREEZING COLD LOCATIONS **** **** PATCHY FROST **** Lowest Temperatures: 33 - 37 Goldsboro_AG Min 36 Range Dewpoint Temps: 21 - 34 Range Wetbulb Temps: 35 - 38 AVG Wind Direction/Speed: V 2 Long Periods of Calm AVG Sky Condition: Mostly Cloudy Extended Forecast: Range of Lowest Min Temperatures in the Above Zones Min Temps Valid For Morning of Given Date (May NOT include ALL cold pockets) 03/11/18 03/12/18 03/13/18 03/14/18 03/15/18 03/16/18 -------- -------- -------- -------- -------- -------- 42 - 46 37 - 40 32 - 34 30 - 33 29 - 32 34 - 41 --------
NC – Growers should note potential “frost activity” again in the mid-week period for next week!
10-DAY DETAILED HOURLY WEATHER FORECASTS
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