Final snowfall totals for March 14, 2020 snowfall event (any number 3" or greater is in purple):
Clearing, then increasing clouds. Low 26-30. East to east-southeast wind 3-5 mph.
Becoming cloudy. Few isolated PM showers. High 46-50. Southeast wind becoming southwest & increasing to 7-12 mph.
Cloudy with scattered showers & patchy fog. Low 38-41. West-southwest wind 5-10 mph
Cloudy with a few AM showers with patchy fog, then gradual PM clearing. High 50-55. West-northwest wind 8-12 mph.
TOTAL RAINFALL MONDAY-TUESDAY AM: 0.01-0.11"
Becoming mostly clear, then clouding up with some light snow/sleet/rain possible in west & northwest around dawn. Lows 30-36. East wind 5-10 mph.
Periods of rain likely (AM period of snow/sleet possible along & north of Indiana 18). Isolated t'storms. High 44-55 north to south. East to southeast wind 13-24 mph.
Periodic rain & isolated t'storms tapering late. Patchy fog. Low 37-50 north to south. East to southeast wind 5-15 mph.
Wave of showers & some t'storms in the morning to midday (isolated severe t'storm possible with hail risk), then mostly cloudy. Becoming windy. Parameters suggest MARGINAL RISK of severe weather, but we will await SPC official forecasts in the coming days. East to southeast wind becoming south to south-southwest at 20-35 mph. Highs 62-70.
Rain & t'storms likely. A couple/few severe storms possible after midnight (wind, isolated brief tornado(es)). Parameters currently suggest SLIGHT RISK, but we will await SPC official forecasts in the coming days. Windy. Lows 60-65. South-southwest wind 25-40 mph.
AM rain & t'storms with a couple/few severe storms possible before 6 a.m. (wind, isolated brief tornado(es)), then clearing in dry slot. Turning very windy. Southwest winds 30-45 mph with isolated gusts to 55 mph.
Temperature should reach 67-74 around midday-early PM, followed by broken line of gusty, low-topped showers & t'storms with an isolated severe storm or two (wind) possible.
Temperatures then falling rapidly to 48-54 by 5 p.m. & 42-47 by 7 p.m. with west winds 30-45 mph with isolated gusts to 55 mph.
Parameters support SLIGHT RISK before 6 a.m., then POSSIBLY a pocket of MARGINAL central Illinois to Indiana for Friday midday. We will await official SPC forecasts.
TOTAL RAINFALL WEDNESDAY-FRIDAY: 1-3"
Cloudy with some light rain/snow showers, then snow showers late. Windy to very windy. Lows 31-35. Northwest wind 25-45 mph. Wind chills 16-24.
SATURDAY (MARCH 21):
Mostly cloudy to cloudy with some scattered flurries & snow showers. Highs 35-39. Windy then breezy. North-northwest winds 25-40 mph becoming north at 15-30 mph, then 10-20 mph.
Another significant storm system with snow/sleet/rain to rain by Monday should be followed by windy to very windy, warm weather with periods of rain & storms. Some severe weather risk may return.
Locally-heavy rainfall is also possible.
This would all occur in the March 23-25 time frame.
Much colder weather should follow with freezing at night & potentially a system with a bit of rain/snow.
Brief little warm-up with 60s should suddenly arrive about March 31 before we turn colder again after that.