United states

DC area forecast: Probable storms later tonight and tonight; possible heavy rain and floods

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* Flood from 15:00 until tonight for most of the DC area *

10:40 a.m. – Floods spread to cover most of the DC area

While computer models tend to project the most rainfall in areas west of Interstate 95 later today, the atmosphere will be humid enough in much of the area to sustain heavy rainfall that could cause flooding. The National Weather Service has decided to extend flood monitoring – previously limited to the western part of the region – over most of the area, except in southern Maryland and counties adjacent to Chesapeake Bay.

#Flood Watch for potential flash floods this afternoon and evening has been extended east in Corridor I-95. Heavy rain from thunderstorms can cause water to rise rapidly in streams, creeks and areas with poor drainage. pic.twitter.com/MtfzQDadcQ

– NWS Baltimore-Washington (@NWS_BaltWash) June 22, 2022

We will publish a detailed briefing on the torrential rain and potential strong thunderstorms around noon.

Original article from 5 in the morning

Somewhat subjective assessment of the time of day for a scale from 0 to 10.

5/10: It is definitely getting worse compared to the last good weather. It can reach 90 degrees with possible late storms and possible floods.

  • today: Partly sunny, scattered evening storms. Maximum: Upper 80 to low 90.
  • Tonight: Evening rains and storms are likely. Low levels: Upper 60 to nearly 70.
  • tomorrow: Isolated to scattered showers are possible. Maximum values: from the mid-70s to the low 80s.

Our series of really nice weather days is over. The warmer air and saturated atmosphere today set the beginning of the storms in the late days. After that, the forecast is not very bad over the weekend and in fact tomorrow will be briefly cooler and a little less humid, although with a few more rains possible. But then we look at the average summer heat and humidity from Friday to Sunday.

Today (Wednesday): The trend is warmer today with maximum values ​​moving towards the upper 80s to the low 90s in partial sunny skies, and we are wetter (dew points from the mid to the upper 60s). Light rain is possible in the morning, and scattered rain and storms will probably develop after 15:00. Some of them can lead to very heavy rains and floods, and separate destructive winds and hail are possible. Confidence: Medium-High

Tonight: Scattered rainfall and storms remain likely in the evening, and there may be areas where recurrent storms are observed before giving way to light rain at night. Again, some of these storms can lead to very heavy rainfall and floods, with the possibility of harmful winds and hail. Otherwise at night we are mostly cloudy and slightly cloudy with low values ​​from the upper 60’s to nearly 70. Confidence: Medium-high

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Tomorrow (Thursday): Isolated to intermittent rainfall remains possible from morning to early afternoon. Partly to mostly cloudy skies and the constant breeze from the north keep temperatures down and reduce humidity. Maximum values ​​should only reach the mid-70s to the low 80s (with dew points in the low to mid-60s). Confidence: Medium

Tomorrow night: Not a bad summer night. The sky should be partly cloudy, with only a hint of fog and low levels in the 60’s. Confidence: Medium-High

Friday and Saturday look mostly sunny and dry days with high pressure under control. Maximum temperatures warm up to the mid-80s to nearly 90 with moderate humidity. The lowest values ​​on Friday night and Saturday night return to the 60’s. Confidence: Medium

Sunday the trend is hotter and wetter with maximum values ​​close to 90. There should still be plenty of sun, but there may be an increase in cloudiness later in the day and perhaps rain or storm until late afternoon or evening. Confidence: low-medium