{"id":740,"date":"2016-07-11T15:39:12","date_gmt":"2016-07-11T19:39:12","guid":{"rendered":"http:\/\/weather.umd.edu\/?p=740"},"modified":"2016-07-11T15:39:12","modified_gmt":"2016-07-11T19:39:12","slug":"beautiful-weather-start-week-heat-humidity-build-back-wednesday","status":"publish","type":"post","link":"https:\/\/weather.umd.edu\/wordpress\/2016\/07\/11\/beautiful-weather-start-week-heat-humidity-build-back-wednesday\/","title":{"rendered":"Beautiful Weather to Start the Week. Heat and Humidity Build Back In By Wednesday"},"content":{"rendered":"

Summary<\/h3>\n
\"noaa.WXForecastmap1\"

Courtesy of NOAA: Weather forecast for Monday July 11, 2016. Southerly flow in Tennessee and the Carolinas is pushing precipitation down south. Approaching hot and moist air is in place out West. High Pressure over the Northeast brings dry and sunny weather to our vicinity.<\/p><\/div>\n

The start of the work week\u00a0will be\u00a0mild and pleasant after the sultry heat wave that resulted in\u00a0temperatures in\u00a0the mid-90s and heat indices above 100F.\u00a0While today’s forecast will be nice, the heat and humidity will return by the middle of the week.\u00a0A\u00a0cold front that moved through on Saturday night has now pushed\u00a0off the Atlantic coast. In addition, high pressure is currently over the Ohio Valley and extends into southern Maryland. This will allow for lower temperatures, lower humidity, sunny skies and dry weather for today. This system should be shifting in a direction offshore the Atlantic coast throughout today. Immediate effects will trigger storm development west of I-95 and movement of the aforementioned stalled front down south toward a more humid and moist air mass.\u00a0This front, located above\u00a0Tennessee and the Carolinas,\u00a0will have a chance to meander\u00a0north toward\u00a0our region before eventually drying out. The combination of the\u00a0frontal boundary position and the high pressure system will keep\u00a0most of the storms and moisture to\u00a0the southeast region of the states throughout today.<\/p>\n

Monday<\/strong><\/h3>\n

High pressure will result in\u00a0mild and dry weather for the duration of Monday. Partly cloudy morning skies will eventually lead to\u00a0generous amounts of sunshine towards the afternoon. Sunshine combined with low humidity will make the high 80s maximum temperatures feel spectacular throughout the day. While the weather is seasonably warm, there is a low to\u00a0moderate\u00a0risk for ragweed pollen on Monday and will last through Tuesday. The low humidity, winds, and hot temperatures combined with dry air usually\u00a0results in\u00a0higher pollen levels. The evening will continue to be dry and mostly clear of precipitation with lows in the high 60s in the suburbs and near 70 near DC. Expect more clouds and increasing humidity overnight.<\/p>\n

\"hrrr_hindex_maryland_14\"<\/a>

Maximum heat index temperature map reveals that the heat index will be nearly the same as the the forecast high temperatures for the mid-Atlantic on Monday.<\/p><\/div>\n

Tuesday<\/strong><\/h3>\n

As high pressure moves offshore toward the Atlantic, a warmer air mass from the Midwest will expand eastward into the mid-Atlantic making it hotter than Monday. Increased\u00a0southerly flow of warm, humid air from the southern states will break the pattern of the last two days. Winds blowing from the south are expected to\u00a0transport hot and moist air into the region\u00a0increasing the likelihood of afternoon storms and showers. Some of these thunderstorms could\u00a0linger into the evening but should mainly be\u00a0restricted to the south and west of the District. Some isolated showers are possible in the afternoon around DC.\u00a0\u00a0The forecast area calls for slightly higher temperatures in the low 90s with increased humidity as well. Overnight low temperatures will be near the low 70s.<\/p>\n

Wednesday and Beyond\u00a0<\/strong><\/h3>\n
\"Wednesday<\/a>

WPC Forecast Map for the US on Wednesday afternoon 2pm<\/p><\/div>\n

Each day will feature an enhanced chance of pop up thunderstorms, as a warm front from the south lifts through the mid-Atlantic. The heat and humidity\u00a0returns on Wednesday and lasts for a few days. A zonal air mass flow will give us a break from severe\u00a0weather but it is still considerable to expect isolated\/scattered thunderstorms throughout the remainder of the week. Humidity and moisture creeps a little higher with high temperatures ranging in the low to mid-90s. Once again, when you have increased moisture along with high temperatures the heat index will play a factor in the forecast. The heat indices will increase back up to the triple digits (near 100) until Friday night\/Saturday morning when a weak cold front moves through. Toward the end of the week, high temperatures will remain in the 90s but drier air will replace humidity as a weak cold front pushes through our region.<\/p>\n","protected":false},"excerpt":{"rendered":"

Summary The start of the work week\u00a0will be\u00a0mild and pleasant after the sultry heat wave that resulted in\u00a0temperatures in\u00a0the mid-90s and heat indices above 100F.\u00a0While today’s forecast will be nice, the heat and humidity will return by the middle of…
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