Background Information for this page
Return to radar list for Middletown RI
Weather data for Middletown RI.  Forecast values begin October 14, 2011
Potential preharvest weather influences on
Storability, Preharvest Drop, Color, and Storage scald risk
     As of October 14, weather data do not suggest increased storage risk due to low average August temperatures, or to hot dry periods in August or September.
     The McIntosh 10% drop date was not estimated because the observed date when McIntosh reached starch index range of 3.5 to 4.5 was not available.
     Weather conditions that promote optimum fruit color not seen within forecast range ending Friday, October 21
   Weather data indicate 165 chilling hours will have accumulated by Monday October 10.  Research found that 500 ppm DPA for Cortland & 1000 ppm for Red Delicious is adequate for fruit harvested on or after October 10, and kept in Refrigerated Air storage.  Limited data suggest that same may also be true for McIntosh.  This is also the best guess for storage scald risk in Controlled Atmosphere storage.
Date Estimated cumulative chilling hours below 50 F Interpretation of
accumulated chilling hours
Oct 14 21 too few chill hours for DPA reduction
Oct 15 21 too few chill hours for DPA reduction
Oct 16 21 too few chill hours for DPA reduction
Oct 17 21 too few chill hours for DPA reduction
Oct 18 21 too few chill hours for DPA reduction
Oct 19 22 too few chill hours for DPA reduction
Oct 20 22 too few chill hours for DPA reduction