Friday, August 05, 2011

Showers and thunderstorms with heavy rainfall south of the border tonight into Saturday.. flash flood watch in effect for North Dakota

A low pressure area will track across North Dakota tonight into Saturday, bringing widespread thunderstorms with some heavy rainfall likely generally near and south of the international border. Local rainfall amounts of 50-75 mm are possible in these areas overnight into Saturday, and flash flood watches are in effect for much of northern ND. There will be a sharp cutoff to the rain north of the border with little rain expected over the northern Red River valley including Winnipeg. This will be the latest in a series of convective weather systems that have brought thunderstorms and heavier rainfall over the southern RRV into North Dakota over the past few weeks. While the northern RRV struggles with very dry conditions since the end of June, it's been a different story south of the border where rainfall has averaged above normal in July in many areas.
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10 comments:

  1. Mike M6:12 PM, August 05, 2011

    This is One extreme to another, hot and dry here, moist and warm there. Eventually mother nature is going to realize "hey am I doing this wrong I should be bringing rain to the other side of the border to help with the dry spell, and stop bringing the rain to places where they already have enough, am I that stupid?" This is like a repeat of 2010 from us for north dakota. Crazy Weather. Please Help us Mother Nature we need you!

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  2. Mike M6:33 PM, August 05, 2011

    I also notice some NNE Movement in the storms in North dakota, looks like we are not going to have a miss after all! PS. I'm not imagining this.

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  3. Brad9:39 PM, August 05, 2011

    @Mike,

    It's completely normal to have NNE movement of individual storm cells in these setups. What you'll see as they approach and cross the international border is a surprisingly quick weakening and demise as they are carried away from the low-level convergence and moisture supply. I'm still sticking to my guns and saying that areas south of Morris will probably get some rain, perhaps the odd lightning strike, and you'll see things diminish rapidly as you head north.

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  4. Mike M9:52 PM, August 05, 2011

    Thanks Buffalo Seven, You taught me something I never knew before. I am a bit dissapointed on our storms we are missing once again, but hey its for the best. TTYL

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  5. Mike M10:09 PM, August 05, 2011

    If anyones interested Monday is looking quite interesting for severe weather, a low which is situated in Alberta and Saskatchewan will makes its way east throughout the weekend. And It could hit us by monday late in the day as a cold front swings through with the main low situated over the interlakes in the evening. The storm severities will depend on how much daytime heating we get throughout the day, along with how much low level moisture we get. at this point it is hard to know exactly what will go on, on monday. I am also concerned with the lows location as in the past wev'e had cold core funnel clouds with them, severe thunderstorms with rotation or something similar. All Iknow is Low pressure system centers in the summer can cause active weather. Am I saying this right? correct me If I'm wrong. we can definitly expect storms here as the warm front is expected to spark of CB Tops of 440FT, at 12Z. All in all monday is looking good.

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  6. Anonymous7:41 PM, August 06, 2011

    Is the smoke in the air from NWO? Probably eh.

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  7. Daryl8:34 PM, August 06, 2011

    Terrible weather on the East Coast. My wife is trying to get to St.Johns and there flight yesterday was cancelled due to fog and and today they had to return to Toronto due to high winds and fog. So now she is stuck in Toronto for a 2nd night. Hopefully tomorrow.

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  8. rob10:11 PM, August 06, 2011

    anonymous..

    Yes, smoke over Whiteshell and southern RRV was from NWO fires. You could see the smoke layer on the last few visible images before sunset to the south and east of Winnipeg. Not much here in Winnipeg that I noticed visibly, but I can smell it in the air this evening..

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  9. Anonymous11:50 AM, August 07, 2011

    That smoke was much stronger in St Vital Park than Fort Garry near 8pm . Assumed BBQ wood fires were cause...

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  10. Mike M2:51 PM, August 07, 2011

    EC Mentioned a chance of some tornadic storms in western manitoba today, and will persist overnight. Have a look at the FOCN 45 Bulletin.

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