Sneaky Cold New York/New England Next TUE/WED!

Weekly Gas Population Week HDD Observations for December/January Forecast
12/27/2021, 8:38 am EST
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Arctic air in Western Canada to the northern Great Plains means potential for sneaky cold anywhere that has snow cover. The 12Z GFS indicates a pulse of arctic air across New York/New England next TUE/WED!

Fig. 1-2: The midday 12Z GFS medium-range U.S. temperature anomaly forecast.

Fig. 3: The midday 12Z GFS temperature changes over the next 15 days.

Fig. 4: The midday 12Z GFS indicates a cold pulse for the Northeast U.S. centered on next TUE/WED. Above is the indicated Tuesday maximum temperatures.

Fig. 5: The midday 12Z GFS indicates a cold pulse for the Northeast U.S. centered on next TUE/WED. Above is the indicated Wednesday minimum temperatures.

DatesHDD Forecast12-Hr Change24 Hours Ago10-Year NML30-Year NML
Dec. 24-30

 

152.7-1.1153.6196.5201.1
Dec. 31-Jan. 6206.5+5.2205.1203.7205.7
Jan. 7-13

 

202.0-14.1194.2207.1209.0

Table 1: Indicated is the 12Z GFS projected gas population weight HDD for the U.S. compared to 12 and 24 hours ago into mid-January.