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Posted at 9:50 AM ET, 05/17/2009

Forecast: Showers End, Cool Weather Follows

By Brian Jackson

* NatCast: Cool and Breezy | Great Falls Flowing *

EXPRESS FORECAST

Today: Early showers, then gradual clearing. 60-65. | Tonight: Clearing, cool. 40-45. | Tomorrow: Sunny and cool, 64-67. | A Look Ahead

FORECAST IN DETAIL

Good growing weather continues, at least for the grass and weeds, as yesterday's rains are once again followed by a stretch of sunny and mild weather. As the weekend comes to a close, lingering morning showers taper to clearing afternoon and evening skies. Moving into the work week, conditions get progressively nicer with sunshine and temperatures on the upswing...

Radar: Latest regional radar loop shows movement of precipitation over past two hours. Powered by HAMweather. Refresh page to update. Click here to see radar bigger. Or see radar bigger on our Weather Wall.

Today (Sunday): What you'll first notice today is substantially cooler temperatures outside. Then again, that's why they're called cold fronts. Our day will begin with some lingering showers moving on by, but these should be out of our hair by around lunchtime. Cloudy skies will gradually begin to clear toward the afternoon/evening as the atmosphere dries out. Good news for this afternoon's Post Hunt.

Temperatures will hold fairly steady; in fact, we may see a morning high temperature for the day as a cold north wind battles the daytime heating. For the most part, daytime temps will be in the low-to-mid 60s. The aforementioned north wind will be breezy at around 10-15 mph with higher gusts. Confidence: Medium-High

Tonight: The chill really sets in this evening as skies continue to clear out. The lows dip all the way down into the low-to-mid 40s. Some of the coldest suburbs may even drop to the upper 30s. Winds from the north will subside to around 5 mph overnight. Confidence: Medium-High

Keep reading for the forecast through your mid-week...

Tomorrow (Monday): For the second week in a row we'll begin the workweek with below normal temperatures. Though, this week we won't see the lingering threat of light rain. Sunny skies will greet you on the way out the door and stay with us all day. Temperatures will remain cool but comfortable with highs in the mid-to-upper 60s. Winds will continue out of the north at around 10 mph. Confidence: Medium-High

Tomorrow Night: Monday night will again be clear and cool. Lows will drop into the low-to-mid 40s downtown with some upper 30s possible again in the colder suburbs. Confidence: Medium-High

A LOOK AHEAD

Tuesday brings back that lovely springtime weather. Sunny skies and seasonable temperatures are expected, with afternoon highs in the mid-70s. Clear again overnight, though not as cool, lows in the upper 40s. Confidence: Medium-High

Wednesday our weather continues to warm. Skies will once again be mostly sunny and temperatures will climb all the way up to near 80 degrees. Confidence: Medium-High

By Brian Jackson  | May 17, 2009; 9:50 AM ET
Categories:  Forecasts  
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Comments

Not much remarkable to say...Rain, heavy for a while last night, seems to be withdrawing. Cool winds are replacing the rainy weather.

There seems to be considerable frost up in Wisconsin and Michigan this morning.

Watch a westward moving low later this week in the northern Gulf of Mexico.

GFS outlook for next weekend's big dance card seems to start out okay on Friday but become wetter by Sunday and Memorial Day.

Posted by: Bombo47jea | May 17, 2009 1:17 PM | Report abuse

There IS something to report. The ACTUAL Atlantic Hurricane Season for 2009 has begun!!!

This is not the "official" season which supposedly "begins" June 1, but the actual tropical season as determined by the appearance of the first Atlantic tropical easterly wave of the summer season on the NHC tropical TAFB chart. There is now a tropical wave proceeding westward at 42 W longitude, between 0 and 12 degrees N latitude. This wave is weak and not expected to develop into anything. However an unrelated low pressure system expected to develop off the west coast of the Florida peninsula may make things rather soggy along the Gulf Coast from the Florida panhandle into Texas in the next few days. If this low intensifies it could take on some tropical [warm-core] characteristics. It's even possible that AccuWeather might consider "naming" this subtropical system.

Posted by: Bombo47jea | May 17, 2009 1:38 PM | Report abuse

Ok, final storm total for West Springfield (I'll stop adding it up day after day now...)

Drum roll please:

5.19" of rain in the last 2.5 weeks.
(.62 just last night)

drip drip

Posted by: bikerjohn | May 17, 2009 4:59 PM | Report abuse

That tropical wave that Bombo mentioned above is rumored to have become "Invest90L" but nothing confirmed from the NHC. Not sure if its true but it look pretty impressive with what could possibly have a mid-level circulation.

Posted by: RWJ1990 | May 17, 2009 5:17 PM | Report abuse

hey guys, what the fancy meteorological term for "the opposite of a drought"?

Posted by: walter-in-fallschurch | May 17, 2009 6:49 PM | Report abuse

QUOTE by walter-in-falls-church:

Hey guys, what the fancy meteorological term for "the opposite of a drought"?

ANSWERS:

1. Greater-than-normal precipitation.

2. Normal up-and-down climatological variability, with some rainy periods.

3. An onshore monsoon.

4. Native American Rain Dancers getting paid on time.

5. Al Gore hitting the rainy side of his dartboard.

Posted by: MMCarhelp | May 17, 2009 7:14 PM | Report abuse

MMCarhelp,
well, you know, i take this as irrefutable evidence of the "weather extremes" projected by scientists as a feature of a warming climate. i mean last month it was a drought, now its a "deluge". it never seems to be normal...LOL

;-)

Posted by: walter-in-fallschurch | May 17, 2009 8:29 PM | Report abuse

I've been watching D.C-area weather since the early 60's, walter......some 45+ years. Much of what a lot of people call "extremes" is actually more or less normal.....and not exclusively something just today for "climate change".

I've seen 90 degrees, locally, in March (1990), 95-100 degrees for several days in a row in Mid-April (1976), snow in mid-October (1979), -18 degrees (February 1979), the most brutally long and hot summer (by D.C. standards) you could imagine in 1988, 12" of rain in 24 hours from Tropical Storm Agnes (1972), the worst and longest severe-thunderstorm season I can remember (last year, 2008), an Arctic-grade fall and winter from September 1976 to the end of January 1977, and many other examples.....too many to list.

Posted by: MMCarhelp | May 17, 2009 10:13 PM | Report abuse

MM,
Your extremes of memory are not supported by measured data. For example, the all-time record high for April is 95. In 1976, that was reached only once. The all-time record low for Feb. is -15, and that was a bit before your time.
Etc. . .
Maybe you need to check your own dartboard.

Posted by: CapitalClimate | May 18, 2009 12:42 AM | Report abuse

MMCarhelp,
i was joking. (hence the "lol" and smiley face)

Posted by: walter-in-fallschurch | May 18, 2009 9:20 AM | Report abuse

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