Category: Canadian Model

Weekly Outlook: Active And Cool!

Another active period of weather is in store for the region. (After an extended stretch of pleasant conditions from late September into the opening of October, I guess we shouldn’t complain too much).

Dry days will be at a premium over the course of the upcoming 7-days.  The final in a series of disturbances in the fast northwest flow will blow through the region Tuesday.  This will offer up a threat of scattered showers and a possible rumble of thunder through the daytime hours. Latest forecast radar data suggests showers and embedded thunder will be ongoing Tuesday morning.

hrrr_ref_mc_10

After a dry day Wednesday (filled with lots of sunshine), we anticipate clouds and rain to quickly return as early as Thursday.  Forecast models handle the evolution of things differently at this juncture. For now, we’ll side with a blend of the GFS and Euro and serve up best rain chances late Thursday into Friday, followed by less concentration of rain Saturday, coupled with cool north winds.

gfs_slp_precip_conus_21

Saturday is a tough call at this point.  The cold front will be south of our area and chilly Canadian high pressure will be building in, but we may keep considerable cloudiness and pesky showers around (similar to last Saturday?). Stay tuned as we continue to fine tune.

Note the cooler than normal air settling in over the weekend.

gfs_t2m_anom_conus_21

7-day rainfall numbers vary greatly from model to model.  Upcoming weekly rainfall totals range from as little as 1″ to as much as 2″.  The Canadian model is the most aggressive, suggesting over 2″ on a widespread basis.

cmc_total_precip_mc_33

Just beyond this time next week we may be looking at an even more significant storm system, but we still have time to fine tune things as we move forward.

Despite the dry weather late September through October’s open, the past 30 days have featured beneficial to excessive Corn Belt rainfall…

nws_precip_east_30

Year-to-date has featured a wet eastern region.  Also note the dry pattern across the southwest (some places under 1″ YTD)!  Officially, we’re just slightly wetter than normal at IND, year-to-date (+0.53″).

nws_precip_conus2_270

Thinking longer term towards the darker, colder, and snowier months ahead… The JAMSTEC remains “bullish” on a regime plenty capable of delivering the cold and snowy “goods” for the region…  BTW- we usually post our annual winter outlook the first Friday of October.  Things have been very hectic as of late and we’re going to have to delay this release by a few weeks….

ssta.glob.DJF2015.1sep2014temp2.glob.DJF2015.1sep2014tprep.glob.DJF2015.1sep2014

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Weekly Outlook: Pleasant, But Big Changes Hit Late Week…

– What a beauty of a Sunday evening underway! Temperatures across the Ohio Valley and Mid West are running 15°-20° above where we’d expect them. The recent dry, warm stretch…

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Weekly Outlook: Cool Start, Mild Finish

A secondary cold front is moving into central Indiana this afternoon with clouds, gusty northerly breezes, and fresh cool air. Speaking of cool, September, so far, has been cooler and…

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Catching Up On A Tuesday Evening…

Several interesting weather items are on the docket and each will have to be dealt with as they come over the course of the upcoming 7 days.  Some of the headlines include a brief warm-up Saturday, weekend rain that could include a tropical connection Sunday, and another big shot of October-like chill next week.

While we have a few more days of below normal temperatures in front of us, we eye at least one day where temperatures will manage to climb above normal and that’s Saturday.  All indications still suggest we’ll be very close, if not a degree or two higher, than the 80 degree mark along with a nice southwest air flow in place Saturday.  All-in-all, it’ll be a great day to take care of any early-autumn yard work that’s needing to get done.

Changes brew Sunday as a cold front draws near.  This is where questions lie and they actually have to do with Tropical Storm Odile (currently all the way to our southwest over the central Baja California peninsula region).  Odilemoisture

While the GFS and European forecast models still aren’t interested in “welcoming” Odile’s moisture into the region, we note the Canadian model does suggest some tropical moisture, courtesy of Odile, gets entangled along the front Sunday.  We’ll continue to keep a close eye on things and monitor the forecast data accordingly moving forward through the back half of the work week.

 

The other item of interest has to do with yet another big blast of autumn air that will have things feeling very much like October around these parts come early next week.  The above average temperatures Saturday will hang around just for the day as yet another unseasonably chilly air mass moves into the area Monday into Tuesday of next week as a significant trough develops over the east with an impressive western ridge in place.  f156

 

Note the GEFS and Canadian show the return of the unseasonable chill next week.  Keep those jackets handy.  Early indications would suggest this type air mass is plenty capable of highs in the upper 50s/ lower 60s and overnight lows in the upper 30s/ lower 40s during the height of the chill (most likely Tuesday).  Stay tuned…

2014091600_054@007_E1_north@america_I_NAEFS@TEMPERATURE_anomaly@probability@combined@week2_198gefs_t2anom_by5_conus_45

 

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Severe Weather Threat Tuesday

Tonight’s video update highlights:

  • Tuesday severe threat
  • Big-time weekend heat
  • Cooler pattern to wrap up August

The Storm Prediction Center has outlined a risk of severe weather Tuesday across the state.

The Storm Prediction Center has outlined a risk of severe weather Tuesday across the state.

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