- A pattern change allows hot and humid weather to return to the Midwest and Northeast.
- The heat index values rise in the upper 90s and lower 100s of the Northeast Interstate 95 Corridor.
- Temperatures will be near or below average later in the week when a cold front moves.
Temperatures are on a rollercoaster ride this week in the Midwest and Northeast, as it gets hot and humid, giving way to another cooldown. But this temperature decline could not last long, as the hot weather in September could be another first week of comeback.
A change in weather has allowed high pressure to be built up in the middle of the country, shifting eastward to Coast earlier this week. This high pressure area is responsible for the return of the humid temperatures.
Hot weather has already returned to parts of the plains and Midwest, where in the 90s in Kansas City in St. Louis and in Chicago to Tuesday heights are reached.
By national weather, heat recommendations were published service in several states, from eastern Kansas to parts of Missouri, Illinois, southeastern Iowa and northwestern Indiana. In addition, an excessive heat warning is posted in St. Louis, where the peak afternoon heat index is up to 105 degrees every Tuesday.
The Northeast will be a warming alert for part of the mid-Atlantic States, New York and New England, including the entire New York City Tri-State area and Philadelphia Metros. Excessive heat warnings for more dangerous heat indices are posted for the Boston and Hartford metro areas.
Heights are pushed into the upper 80s and lower 90s on Monday in the northeast, but Tuesday and Wednesday become the hottest days be.
The afternoon readings on Tuesday and Wednesday will range from Boston to New York City and Washington DC in the mid-1990s. Heat index values are likely to go over this corridor in the upper 90s or under 100.
(MORE: Here's what the heat index signifies )
Boston and Burlington, Vermont, could flirt with their daily records on Wednesday of 96 degrees and 92 degrees, respectively.
As mentioned previously, this heat and moisture spike will lead to a cooldown later this week.
In […] the northern plains and upper Mississippi Valley until Tuesday and the mid-Mississippi Valley, the Great Lakes and the Ohio Valley on Wednesday
temperatures may remain close to 90 degrees on northeast Thursday, then but on Friday and Saturday with Boston, New Cooling Dramatically York City and Philadelphia may see highs in the 1970s.
However, there is a catch, because this break from the hot weather conditions can not stay in the first full week of September.
Forecasting indicates a ridge of hig The pressure can recede somewhere in the middle and eastern states.
As a result, above-average hot temperatures are favored in September and in the central and eastern states, after the last 6- to 10-day temperature. Outlook from the NOAA Climate Prediction Center
(MORE: Prediction Temperature Maps [TemperatureProspect
(NOAA's 6 to 10-day temperature forecast.)
However, it is still too early to be confident where the hottest weather in these regions could arise, as it matters where the high-pressure system eventually becomes anchored itself.