Record Warmth On Tuesday, Accelerated Growing Degree Day Accumulation

Growing Degree Days are a measurement of the growth and development of plants and insects during the growing season. Development does not occur at this time unless the temperature is above a minimum threshold value (base temperature). The base temperature varies for different organisms. It is determined through research and experimentation. The actual temperature experienced by an organism is influenced by several factors. These factors affect growth and development. For instance, depending on the weather, an organism’s temperature may be a few degrees more or less than that recorded. An organism may spend its time in the shade or under direct sunlight. The fertility and nutrient content of the soil directly affect the growth rate of insects and plants. The presence of weeds and precipitation may indirectly influence development. Due to these factors and some other scientific considerations, a base temperature of 50 degrees Fahrenheit is considered acceptable for all plants and insects.

 

 

 

Snow surrounding Wilmington…or not

Click for latest Base Reflectivity radar loop from the Wilmington, OH radar and current weather warnings

Snow all around Cincinnati? The uninitiated may think so. This is virga, snow falling but not reaching the ground due to dry air near the surface. The radar beam is higher farther from the radar site so it is picking up snow a distance from the site but not at the site itself.

http://blog.metservice.com/sites/default/files/u36/S5%20Virga%20diagram.jpg

http://en.es-static.us/upl/2014/07/virga_Susan_Jensen_eastern_Washington_5-4-2012-e1465408195717.jpeg

Snow and Slick Driving Possible Sunday

A special weather statement has been issued for snow Sunday on Cincinnati. I’m sure you’ve all seen it. Actually, I’m sure most haven’t seen it because few see special weather statements. Not a big storm but there may be slick driving at times, especially Sunday morning and later in the evening. It’s super bowl Sunday. I would have issued a winter weather advisory. Another complication is that pavement temperatures are cold but the air temperature will likely be above freezing for most of the event.

Special Weather Statement
National Weather Service Wilmington OH
508 AM EST Sat Feb 3 2018

INZ050-058-059-066-073>075-080-KYZ089>100-OHZ026-034-035-042>046-
051>056-060>065-070>074-077>082-088-032100-
Wayne-Fayette IN-Union IN-Franklin IN-Ripley-Dearborn-Ohio-
Switzerland-Carroll-Gallatin-Boone-Kenton-Campbell-Owen-Grant-
Pendleton-Bracken-Robertson-Mason-Lewis-Hardin-Mercer-Auglaize-
Darke-Shelby-Logan-Union OH-Delaware-Miami-Champaign-Clark-
Madison-Franklin OH-Licking-Preble-Montgomery-Greene-Fayette OH-
Pickaway-Fairfield-Butler-Warren-Clinton-Ross-Hocking-Hamilton-
Clermont-Brown-Highland-Adams-Pike-Scioto-
Including the cities of Richmond, Connersville, Liberty,
West College Corner, Brookville, Batesville, Milan, Versailles,
Lawrenceburg, Aurora, Rising Sun, Vevay, Carrollton, Warsaw,
Florence, Burlington, Oakbrook, Covington, Erlanger,
Independence, Newport, Alexandria, Owenton, Williamstown,
Crittenden, Dry Ridge, Falmouth, Butler, Augusta, Brooksville,
Mount Olivet, Maysville, Vanceburg, Tollesboro, Kenton, Ada,
Celina, Coldwater, Wapakoneta, St. Marys, Greenville, Sidney,
Bellefontaine, Marysville, Delaware, Troy, Piqua, Tipp City,
Urbana, Springfield, London, West Jefferson, Plain City,
Columbus, Newark, Eaton, Camden, Dayton, Kettering, Beavercreek,
Fairborn, Xenia, Washington Court House, Circleville, Lancaster,
Pickerington, Hamilton, Middletown, Fairfield, Oxford, Mason,
Lebanon, Springboro, Wilmington, Blanchester, Chillicothe, Logan,
Cincinnati, Milford, Georgetown, Mount Orab, Hillsboro,
Greenfield, West Union, Peebles, Waverly, Piketon, Portsmouth,
and Wheelersburg
508 AM EST Sat Feb 3 2018

..WINTER WEATHER TO IMPACT THE AREA LATE TONIGHT THROUGH
SUNDAY...

Snow will develop late tonight with up to an inch of accumulation
by Sunday morning. The snow will mix with rain Sunday morning,
mainly south of I-70. The precipitation will transition to all
snow Sunday afternoon with the passage of a cold front.

Storm total snow though Sunday night of 1 to 3 inches will be
possible along and north of I-70, with 1 to 2 inches south of
I-70.

The snow could create some slick spots on untreated roadways and
make travel difficult at times. Exercise caution if you plan on
traveling late tonight or Sunday. Allow extra time to reach your
destination.