Forecast: Stifling Saturday Heat
Extreme heat to last at least into early next week
*Heat Advisory in effect until 8 p.m.*
*Excessive Heat Watch Sunday afternoon through Monday afternoon*
The season's first major heat wave will roast the metro area all weekend long. Temperatures will soar into the mid to upper 90s and it will feel like 100 to 105 factoring in the oppressive humidity. Current indications are that it will remain very hot through Tuesday. Extreme heat can cause negative health impacts such as heat exhaustion, heat stroke and even result in death so take it easy, drink a lot of water, and spend time in an air-conditioned environment.
Very hot and humid. 95-99. A classic summer time Bermuda high pressure system will direct hot, moist tropical air from the southwest over the region. Temperatures will quickly climb through the 80s this morning with temperatures into the low 90s by noon. Late afternoon temperatures will peak in the mid to upper 90s with an isolated 100 degree reading or two possible. Record highs today are 98, 96, and 96 at Reagan National (DCA), Dulles (IAD), and BWI, respectively.
There won't be much of a breeze (only about 5-10 mph from the southwest) to offer relief and there's barely a 20% chance an isolated thunderstorm could cool you down towards evening. If you really can't stand the heat, go to the Eastern Shore where temperatures will be about 10-15 degrees cooler than they are here.
Overnight, it will be partly cloudy and muggy, with lows in the low 70s in the cooler suburbs and the upper 70s downtown.
Confidence: Medium-High
Keep reading for the forecast for Sunday into early next week. See NatCast for the sultry outlook for tonight's game.
TOMORROW (SUNDAY)
Oppressive heat and humidity. 96-100. Tomorrow will pretty much be a repeat of today except we'll start the day even warmer. Temperatures should already be near 90 by 10 a.m. and by mid to late afternoon, quite a few spots could be near or at the century mark with heat indices near 105. Records at DCA, IAD, and BWI are 98, 97, and 97.
Very warm and humid conditions overnight, with lows only near 80 downtown with mid 70s in the suburbs.
A LOOK AHEAD
The same offensively hot weather pattern will hold strong Monday and Tuesday. Highs both days will likely be in the upper 90s, with heat indices between 100 and 105. Confidence: Medium-High
By Jason Samenow |
June 7, 2008; 5:00 AM ET
Forecasts
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Posted by: ~sg | June 7, 2008 6:42 AM
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fog gone in 22304, temps going up like a fever
Posted by: pvogel88 | June 7, 2008 9:57 AM
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just wondering, why the Bermuda High is setting up camp so early in this relatively cool wet spring? I've really been enjoying cool evenings on the deck -- not ready for the soup yet! what's the long-range trend for June?
Posted by: weathergrrl | June 7, 2008 10:31 AM
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Temp rose 9 degrees last hour at IAD.. up to 88 now. DCA a little slower to respond so far, but should start cooking next hour or two. Upper 90s could be a little tough at DCA today, though a big jump like seen at IAD gets you pretty far.
Posted by: Ian, Capital Weather Gang | June 7, 2008 10:59 AM
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I voted 96 or less for National because of the Potomac River effect. I think Dulles will hit 99 and BWI will be 98.
I just wish the option of "DANG HOT!" was on there, because we'd all be right then! ;)
Posted by: weatherdudeVA (Lake Ridge) | June 7, 2008 10:59 AM
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Weathergrrl-- We've simply been undergoing a pattern change due to a shift in the jet stream (big ridge in the jet stream setting up over the East). This is pretty normal. Bermuda highs can set up much earlier in the spring and even in winter. You can read a much more technical discussion at the Eastern US Weather Forums.
Posted by: Jason, Capital Weather Gang | June 7, 2008 11:08 AM
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If it is too difficult to reference BWI Marshall by its given name, you should also revert to the abbreviated name of the other D.C airport; National.
Posted by: lelbee | June 7, 2008 11:27 AM
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Holy mackerel...the temperature went from 79 to 87 in 10 MINUTES here in Lake Ridge. Sheesh!
Posted by: weatherdudeVA (Lake Ridge) | June 7, 2008 11:38 AM
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Just hit 90 in NW Spotys. Looks like I'll get close to 100.
Posted by: VaTechBob. | June 7, 2008 11:48 AM
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Check out these tropical dewpoints:
National. . . . .. 77
Dulles. . . . . . .75
Stafford. . . . . .79
Louisa. . . . . . .81
If that Louisa reading is correct, the combination with 93° temperature makes the Heat Index 113.
Richmond is already at 97° at noon.
Posted by: Steve, Capital Weather Gang | June 7, 2008 11:59 AM
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Here in Idaho this AM(June 7)it was 42 degrees at 8:00 AM, expected to warm to the high 50s with chance of showers. Just last week the last of the local ski resorts closed, not for lack of snow, still over 5 feet at the summit, but lack of skiers. Feel cooler now?
Posted by: Hot enough for u? | June 7, 2008 12:04 PM
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Hey, Steve, reading those dewpoints got me thinking. Does the Weather Service or anyone else keep a record of all time high dewpoints. Those numbers seem like they are close to the highest I've ever seen here in the area.
Posted by: chris | June 7, 2008 12:43 PM
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It's funny, I've been telling people who are new around here it was going to be in the 90's pretty soon(few weeks back) and they laughed at me.
Spring is always short around here. - Ray
Posted by: Ray | June 7, 2008 12:47 PM
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DCA climbed 10F in the last 2 hours to 97F at 2pm.
Posted by: Ian, Capital Weather Gang | June 7, 2008 1:57 PM
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My thermometer here in the heart of Del Ray (Alexandria) has hit 103 F. In the last 15 minutes it rose from 98 to 103. The Maury Elementary School's weather bug weather reporting station is recording a 102F temp currently. I think they may have underestimated the eat, espeically AWAY from the river / DCA. Ill never understand why the official temps are taken at a location that is fairly drastically modified by the river, and does not reflect the the true temps of the areas IN and around the city areas itself. DCA isnt even in the district!
More heat to come im sure.
Posted by: KJ in DEL RAY VA (alexandria) | June 7, 2008 2:41 PM
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My thermometer here in the heart of Del Ray (Alexandria) has hit 103 F. In the last 15 minutes it rose from 98 to 103. The Maury Elementary School's weather bug weather reporting station is recording a 102F temp currently. I think they may have underestimated the eat, espeically AWAY from the river / DCA. Ill never understand why the official temps are taken at a location that is fairly drastically modified by the river, and does not reflect the the true temps of the areas IN and around the city areas itself. DCA isnt even in the district!
More heat to come im sure.
Posted by: KJ in DEL RAY VA (alexandria) | June 7, 2008 2:43 PM
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Thermometers are reading 95 and 94 (I have 2 of them), and weatherbug says 95. Weather channel says heat index is 108 here.
Posted by: weatherdudeVA (Lake Ridge) | June 7, 2008 2:54 PM
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Triple digits in VA:
CITY SKY/WX TMP DP RH WIND PRES REMARKS
RICHMOND MOSUNNY 100 67 33 W8 30.05F HX 105
SOUTH HILL* MOSUNNY 100 59 25 SW8 30.15F HX 100
ROANOKE RAPIDS SUNNY 100 64 30 W7 30.09F HX 102
NORFOLK NAVAL MOSUNNY 100 65 31 W5 30.06F HAZE HX 103
WILLIAMSBURG* CLEAR 100 70 37 SW7 30.05F HX 107
CHESAPEAKE SUNNY 100 66 32 NW3 30.05F HX 104
FRANKLIN* SUNNY 100 73 41 CALM 30.06F HX 111
Sorry for the crappy spacing, but comment system doesn't allow fonts.
Posted by: Steve, Capital Weather Gang | June 7, 2008 3:21 PM
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We have 2 thermometers also; they are reading 96 and 99 right now.
Posted by: D.K. in Alexandria (Mt. Vernon) | June 7, 2008 3:21 PM
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3:00 PM in Louisa (where I'm now):
Temperature 98 F (37 C)
Heat index 115.5 F (46.4 C)
Dew Point 78 F (26 C)
Want to cool off a bit? Go to Miami, where at 3:00PM:
Temperature 88.0 F (31.1 C)
Heat Index: 91 °F / 33 °C
Dew Point 68.0 F (20.0 C)
But, thought summer doesn't begin until June 21! Not really, meteorological summer began June 1
Posted by: Steve Tracton, Cpital Weather Gang | June 7, 2008 3:52 PM
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Daily records tied or broken so far:
Blacksburg 89
Richmond 100
Norfolk 100
Elizabeth City NC 99
Roanoke 95
Yesterday's 90 at Blacksburg was the earliest on record for the season.
Posted by: Steve, Capital Weather Gang | June 7, 2008 4:22 PM
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98 was the high at DCA, record tied for the date. 95 at both IAD and BWI.
Posted by: Ian, Capital Weather Gang | June 7, 2008 5:39 PM
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I just got a desktop warning about possibility of severe thunderstorms. Please god no. But, is this likely?
Posted by: ep | June 7, 2008 7:46 PM
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The comments to this entry are closed.
Thick fog in Merrifield; I've never seen it so dense right here.