November 19th-21st, 2015 Snow Event - Forecast vs. Actual

 

(847) 395 - 7120

16. 08. 15

FORECASTS:  

Thursday, Nov. 19th: An approaching storm that will produce accumulating snowfall Friday night into Saturday. Snow accumulation on pavements Friday night through Saturday afternoon is expected to be 2-4”. Higher amounts may be seen on grassy areas.  

Friday, Nov. 20th:Accumulating snowfall through tonight and much of the afternoon hours on Saturday. Total snowfall on pavement will be 3-6” with 2-4” near Lake Michigan. Snow will initially be wet to start then slowly transition to dry during the day on Saturday.  

Saturday, Nov 21st:Ongoing wet snow to continue today ending in the late afternoon hours. Additional slushy accumulations of 1-2” on pavements with some local higher amounts possible.   

ACTUAL:  

Friday, Nov 20th (2:18pm): Snow developing this evening, could be mixed with snow and rain. Snow will stick north and west (9-11pm) and after midnight near the lake. Snow will gradually diminish Saturday. Most snow accumulation 3am-11am.  

Friday, Nov 20th (10:30pm):Radar shows heaviest snow in McHenry and Lake Counties where 3-6” has already fallen. Expect a steady but slower accumulation over the next few hours. Towards morning the snow is expected to get heavy again with another 2-4” on pavement, heaviest amounts to the north and west of Chicago.  

Saturday, Nov 21st (3:44am): The Storm has another 6-7 hours to finish crossing the area. There will be periods of light to moderate snow but accumulations will be low due to the warm ground temperatures  

Saturday, Nov 21st (8:55am):Ongoing wet snow. Heaviest this morning and ending late this afternoon. Additional slushy 1-2” accumulations for inland areas with locally higher amounts possible. Temperature will remain steady in the low 30’s and drop into the teens overnight. Freeze-back is possible tonight. 

LOCAL SNOW TOTALS  

 

Location

 

Start Time

 

End Time

 

Actual Snow

Forecasted

Snow/Slush

Antioch

6:56pm (Fri)

5:01pm (Sat)

12.5”

3-6”/ 1-2”

Lake Forest

6:56pm (Fri)

5:01pm (Sat)

14.0”

3-6”/ 1-2”

North Chicago

6:56pm (Fri)

5:01pm (Sat)

11.5”

3-6”/ 1-2”

Schaumburg

6:16pm (Fri)

5:38pm (Sat)

12.0”

3-6”/ 1-2”

Carol Stream

5:44pm (Fri)

5:03pm (Sat)

11.0”

3-6”/ 1-2”

O’Hare Airport

6:16pm (Fri)

5:38pm (Sat)

11.2”

 

Midway Airport

6:26pm (Fri)

6:12pm (Sat)

5.8”

 

Rockford Airport

3:50pm (Fri)

3:13pm (Sat)

8.8”