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Thread: General Weather Discussion - April 2014

  1. Default Re: General Weather Discussion - April 2014

    Quote Originally Posted by Soonerman12 View Post
    ANON... I check the SPC daily.. The reason I asked what I asked is because in the NWS Hazardous weather outlook for eastern OK it says no severe weather is anticipated. I just wanted to see what your view was because I saw Venture's post saying pretty much all of Oklahoma had a chance of it on Sunday. Just wanted to compare different peoples opinions.
    Things evolve from run to run. My comments are always based on that run specifically. NAM just brought all of Sunday into the forecast window and it has very little in the way of precip east of I-35.

  2. Default Re: General Weather Discussion - April 2014

    Thursday might be a day to watch. GFS and ECMWF disagree on timing though.

    GFS is slower with severe risk over Central OK, ECMWF pushes things off to the east faster with main threat possible in SE OK.


  3. Default Re: General Weather Discussion - April 2014

    SPC Day 4-8 Discussion on the Weds/Thurs threat...

    DAY 4-8 CONVECTIVE OUTLOOK
    NWS STORM PREDICTION CENTER NORMAN OK
    0331 AM CDT FRI APR 18 2014

    VALID 211200Z - 261200Z

    ...DISCUSSION...
    EARLY IN THE MEDIUM-RANGE PERIOD BOTH THE GFS AND ECMWF ARE IN
    GENERAL AGREEMENT REGARDING THE MOVEMENT OF LOW-LATITUDE SHORT-WAVE
    TROUGH AS IT SHIFTS EAST OF THE SRN PLAINS INTO THE LOWER MS VALLEY.
    25-35KT NW H5 FLOW ON BACK SIDE-BASE OF THIS FEATURE WILL ENHANCE
    DEEP-LAYER SHEAR COINCIDENT WITH MODEST INSTABILITY. STRONG HEATING
    WILL LIKELY DEVELOP ACROSS THE HILL COUNTRY OF TX AND DAYTIME
    HEATING COULD PROVE INSTRUMENTAL IN A FEW SUPERCELLS IN THE WAKE OF
    SHORT WAVE. GIVEN THAT THIS ACTIVITY WOULD EVOLVE WITHIN A BROADER
    ZONE OF LESS THAN FAVORABLE LARGE-SCALE ASCENT...COVERAGE SHOULD BE
    INADEQUATE TO WARRANT 30 PERCENT SEVERE PROBS DURING THE DAY4
    PERIOD.

    LATER IN THE WEEK MODEL SOLUTIONS BEGIN TO DIVERGE A BIT AS
    LARGE-SCALE PATTERN CHANGES. ECMWF IS CONSIDERABLY FASTER THAN THE
    GFS ALLOWING A STRONG SHORT-WAVE TROUGH TO TRANSLATE INTO THE
    ROCKIES BY WEDNESDAY. DIFLUENT FLOW ALOFT AND STRENGTHENING SHEAR
    PROFILES WOULD PROVE POTENTIALLY FAVORABLE FOR A PLAINS SEVERE
    EVENT. HOWEVER...GFS DOES NOT EJECT THIS FEATURE UNTIL LATER
    THURSDAY. EITHER OF THESE SOLUTIONS COULD GENERATE A POTENTIALLY
    SIGNIFICANT SEVERE EVENT BUT TIMING DIFFERENCES PREVENT DELINEATING
    AN ORGANIZED SEVERE THREAT THIS PERIOD
    .

    ..DARROW.. 04/18/2014

    Looking at the model runs this evening. GFS has a big show over Central OK on Thursday. Euro has the big show in Western OK on Wednesday. Which one is right? Both have been sticking to their guns so we just have to see how each run progresses.

  4. #354

    Default Re: General Weather Discussion - April 2014

    So are we looking at a potential PDS watch kind of a day? In addition, Payne has upper 90s forecasted for next weekend. Can we really see temperatures that hot in April?

  5. #355

    Default Re: General Weather Discussion - April 2014

    Quote Originally Posted by bchris02 View Post
    ... Payne has upper 90s forecasted for next weekend. Can we really see temperatures that hot in April?
    Itty bitty bits of snow and 90's is the same week? Yeah, it's Oklahoma. I can buy that.

  6. #356

    Default Re: General Weather Discussion - April 2014

    Quote Originally Posted by bchris02 View Post
    So are we looking at a potential PDS watch kind of a day? In addition, Payne has upper 90s forecasted for next weekend. Can we really see temperatures that hot in April?
    AccuWeather has it in the mid to low 80's next weekend.

  7. Default Re: General Weather Discussion - April 2014

    Storm Outlook...

    Saturday
    Chance of a storm or two along the dryline, mainly out in TX. Otherwise dry for the main body.

    Sunday
    Couple have multiple chances of showers/storms on Sunday. Most likely will be Western OK. General rain early and then maybe some storms along the dryline later in the day. Things will slowly move east through the day/overnight. Severe risk is low, but some could get a bit grumpy.

    Monday
    Chance for some rain and storms remain, mainly the eastern half of OK. Not much in the way of severe weather.

    Tuesday - quiet

    Wednesday
    Chance of storms late along the dryline in Western/Central OK. May not really fire until sunset or later. Best instability will be out west though, so severe potential might be pretty limited the further east any storms go.

    Thursday
    Chance of storms Central/Eastern OK by later afternoon along dryline/cold front. Similar to what we had recently. Timing is going to play into everything here on how fast the storm system moves through. Instability will be very high just ahead of the boundary coming through. Still to jumbled to pick a specific risk area.

    Friday - Far SE OK some remaining storms and such.

    Saturday - Quiet

    Sunday
    Very slight chance of a storm out west.

  8. #358

    Default Re: General Weather Discussion - April 2014

    Quote Originally Posted by PennyQuilts View Post
    We got down to 32.7, for awhile. Up to 33.3, now. Mama bluebird is still sitting on the nest so I'm keeping my fingers things will go well.
    We have three live babies. Click image for larger version. 

Name:	image.jpg 
Views:	70 
Size:	1.22 MB 
ID:	7570

  9. #359

    Default Re: General Weather Discussion - April 2014

    Quote Originally Posted by bchris02 View Post
    So are we looking at a potential PDS watch kind of a day? In addition, Payne has upper 90s forecasted for next weekend. Can we really see temperatures that hot in April?
    Sure!

    http://www.srh.noaa.gov/oun/climate/...mo=apr&type=tm

  10. #360

    Default Re: General Weather Discussion - April 2014

    Quote Originally Posted by PennyQuilts View Post
    We have three live babies. Click image for larger version. 

Name:	image.jpg 
Views:	70 
Size:	1.22 MB 
ID:	7570
    Those are cute... I bought three baby ducks today so now I some to take care of myself

  11. #361

    Default Re: General Weather Discussion - April 2014

    Quote Originally Posted by kevinpate View Post
    Itty bitty bits of snow and 90's is the same week? Yeah, it's Oklahoma. I can buy that.
    that's awesome

  12. Default Re: General Weather Discussion - April 2014

    Short term severe risk...

    Today, Sunday, and Monday look like days with very low severe risks. Storms are possible tomorrow over much of the state and then the eastern half on Monday. Instability just won't be there and the main ingredients will be down in Texas both days.

    Rest of the week...

    Tuesday - Quiet

    Wednesday - SPC has a 30% risk area out on the Day 5 map for Western OK, and other areas of the high plains. We've been talking about it for awhile, but models are just crap from run to run and GFS and Euro never want to agree for more than a run. Wednesday appears to have CAPEs pushing near 2000 j/kg over W OK and CIN will decrease enough by late afternoon to allow for some isolated storms to form. Dryline should remain well out into the PHs, likely staying around or just east of I-27. Moisture looks good with dews into the low 60s possible. Moderate cap will exist though, which is why things should stay isolated. Tornado threat looks low with very elevated LCLs but the other indices show conditions would be favorable for severe storms with likely some very large hail.

    Thursday - Chance for severe weather remains. GFS is up to speed with previous EMWCF runs having the main risk area to the east of I-35 and south of I-40. We'll see if this timing remains for a few more runs or if it will bounce around some more.

    Friday - Slight chance for some lingering storms over the Red River counties east of I-35.

    Saturday - Severe risk increases over the SW 1/2 of OK. GFS has a very unstable atmosphere ahead of the next system coming through and storms popping by late afternoon in SW OK. Setup looks good for all modes of severe weather, but this is a week out too. It'll change.

    Sunday - Storm system start to move out into the Plains a bit more. Instability builds/remains over much of Oklahoma except for NE and far East Central OK. Precip forecast show widespread heavy rain, but again - we are really far out and confidence in thsi is slow. Like Saturday, ingredients are there for severe weather.

  13. Default Re: General Weather Discussion - April 2014

    Extended Storm Outlook...

    Tuesday 29th - Slight chance of storm Central & East. Rain North.

    Wednesday 30th - Chance of rain, storm chances low.

    Thursday May 1st - Dry - mostly.

    Wednesday May 2nd - Dry.

    Thursday May 3rd - Dry.

    Friday May 4th - Chance of storms, statewide.

    Now I will put the above with the level of confidence around 1%. Seriously. Regardless of it being so far out, the forecast has literally been changing run to run. So take it with a dump truck load of salt, if there is any left after winter, when looking at this forecast.

  14. Default Re: General Weather Discussion - April 2014

    12Z Euro isn't all that far off from the GFS through the first half of this coming week. It builds instability back in on Friday much quicker and also fairly unstable on Saturday and Sunday as well. Chance of storms each day, but we'll worry about specifics if we see this continue to develop.

    Climatologically speaking, we are heading into peak season. Things typically get busy from here through May. It has been a very quiet year so far and I expect it to increase and get back on track somewhat. Signs are there we are going to head into a much more active pattern soon - we'll see if it happens.

  15. #365

    Default Re: General Weather Discussion - April 2014

    Hopefully it does. We need the rain... I just hope we don't have a quite season then have a cool wet summer.

  16. #366

    Default Re: General Weather Discussion - April 2014

    Don't forget...we could still get some more snow. I am sure most of you remember March 29-30, 1951.

  17. #367

    Default Re: General Weather Discussion - April 2014

    Models predicting more liquid over the next 2 days. Looks like potentially up to an inch over a large area of the state. Some of this will be in form of thunderstorms, though. So local amounts higher.

    Next two days generally unstable as mentioned earlier this week.

  18. Default Re: General Weather Discussion - April 2014

    00Z GFS definitely kicking things up pretty good for the next week or more. At least the chat room is setup for the most part 24 hrs a day now. LOL

    I'm beat right now, worked all day, work again tomorrow morning. So I'll try to do a new outlook tomorrow evening when I get home.

  19. Default Re: General Weather Discussion - April 2014

    Slight Risk today was extended north a tad into far SW OK. Main risk hail and wind.

  20. #370

    Default Re: General Weather Discussion - April 2014

    Yea latest GFS pretty much gives a shot at precip. almost every day this week.

    If clouds erode over SW OK by later today, could see a few storms try to make a show.

  21. #371

    Default Re: General Weather Discussion - April 2014

    Nice precip bulb of moderate rain and embedded thunderstorms moving up into SW OK. Looks to be taking aim at SC OK. Maybe clip C OK if it continues to evolve north.


    Looks like some purer thunderstorms popping in extreme SW/W OK.

  22. Default Re: General Weather Discussion - April 2014

    Decent little meso in the storm moving into Harmon County. 2" hail reports coming from this storm.


  23. Default Re: General Weather Discussion - April 2014

    Spotter confirmed tornado with the storm just across the border in Childress County.

  24. Default Re: General Weather Discussion - April 2014

    Warning out finally...

    BULLETIN - EAS ACTIVATION REQUESTED
    TORNADO WARNING
    NATIONAL WEATHER SERVICE NORMAN OK
    555 PM CDT SUN APR 20 2014


    THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A


    * TORNADO WARNING FOR...
    SOUTHWESTERN HARMON COUNTY IN SOUTHWEST OKLAHOMA...
    NORTHWESTERN HARDEMAN COUNTY IN NORTHERN TEXAS...


    * UNTIL 630 PM CDT

    * AT 555 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
    TORNADO WAS LOCATED 10 MILES NORTHEAST OF KIRKLAND...MOVING EAST AT
    15 MPH.


    HAZARD...TORNADO AND GOLF BALL SIZE HAIL.


    SOURCE...RADAR INDICATED ROTATION.


    IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT
    SHELTER. MOBILE HOMES WILL BE DAMAGED OR DESTROYED.
    DAMAGE TO ROOFS...WINDOWS AND VEHICLES WILL OCCUR. TREE
    DAMAGE IS LIKELY.

  25. Default Re: General Weather Discussion - April 2014

    4 Box image... Base Reflectivity, Base Velocity on the top...and then Max Hail size and NROT on the bottom.

    Some monster hail possible with this thing.


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