Pleasant Tuesday Ahead For Northeast Oklahoma


Tuesday, August 21st 2018, 3:51 am
By: Alan Crone


Pleasant weather is underway across northeastern Oklahoma with below normal temperatures across the area this morning.  Highs will move into the 80s today along with sunshine and north breezes.  Rain chances return for some locations during the next two days. 

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The 594 ridge will center across southwestern Texas with the periphery across north Texas today into Thursday before expanding eastward into the weekend.  A developing trough across the pacific northwest will move into the central and northern high plains Thursday into Friday helping to drive some active weather in our direction beginning later tonight and continuing in some form or fashion through early Friday morning.  The main impacts will be a few showers nearby across northern Oklahoma or southern Kansas Wednesday morning for a few hours before diminishing.  Another 2nd and better chance will arrive Wednesday night into Thursday morning with a slightly higher coverage and chance of showers and storms across northern Oklahoma.  Severe weather is unlikely based on the pattern for northern Oklahoma.  The impact on the temps will be to keep them well below the seasonal average again Wednesday and Thursday with highs in the lower or mid-80s.  As the above-mentioned mid-level trough ejects into the Midwest Friday, a surface warm front will advect across the state bringing warm and humid weather back into Oklahoma Friday through the weekend with morning lows in the 70s and afternoon highs in the mid-90s.  Heat index values are expected in the 100 to 104 range Friday into the weekend.  Hot weather appears to last also for a few days next week.  Only the GFS keeps some precip chances linger Saturday morning while most other data support the increasing ridge and dry conditions.  At this point, we’re siding with the EURO.

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Today should be a very nice weather day by August standards.  Lows this morning will start in the lower to mid-60s area wide.  Afternoon highs will range from 83 to 87 with north winds and dry air across eastern Oklahoma.

Thanks for reading the Tuesday morning weather discussion and blog.

P.S.

This is the NWS Tulsa Damage Assessment & Survey regarding the Sunday August 19, 2018 severe weather event. 

OVERVIEW...Several low-topped, mini supercells developed across eastern Oklahoma during the afternoon of August 19th. At least two

of these supercells produced weak tornadoes in Mayes and Rogers counties. NWS Tulsa meteorologists surveyed damage from these

tornadoes today and the results of their survey are detailed below.

.INOLA/CHOUTEAU, OKLAHOMA TORNADO.

Rating:                 EF-1

Estimated Peak Wind:    90 to 100 mph

Path Length /Statute/:  8.4 miles

Path Width /Maximum/:   350 yards

Fatalities:             0

Injuries:               0

Start Date:             August 19 2018

Start Time:             334 pm CDT

Start Location:         3 SE Inola / Rogers County / OK

Start Lat/Lon:          36.1307 / -95.4613

End Date:               August 19 2018

End Time:               355 pm CDT

End Location:           2.8 NW Chouteau / Mayes County / OK

End Lat/Lon:            36.2240 / -95.3644

Survey Summary: This tornado developed near the intersection of the E610 Road and NS424 Road where trees were uprooted. The tornado moved

northeast where it apparently passed over the Oklahoma Mesonet station east of Inola, which measured 85 mph wind gusts at 10 meters

above ground and 98 mph wind gusts 2 meters above ground. Just northeast of the Mesonet site, the tornado destroyed an outbuilding

and damaged a home on the E690 Road. Horse trailers were tossed and trees were damaged as it approached and then moved over Highway 412.

The tornado damaged mobile homes and damaged outbuildings near the W570 Road and then apparently dissipated north of the W550 Road.

.MAZIE, OKLAHOMA TORNADO

Rating:                 EF-1

Estimated Peak Wind:    90 to 100 mph

Path Length /Statute/:  5.2 miles

Path Width /Maximum/:   200 yards

Fatalities:             0

Injuries:               0

Start Date:             August 19 2018

Start Time:             345 pm CDT

Start Location:         4.8 SW Mazie / Mayes County / OK

Start Lat/Lon:          36.0760 / -95.4400

End Date:               August 19 2018

End Time:               358 pm CDT

End Location:           1.1 NNW Mazie / Mayes County / OK

End Lat/Lon:            36.1241 / -95.3676

Survey Summary: This tornado apparently developed near the S425 Road just north of the E650 Road where large tree limbs were snapped. The

tornado moved northeast and damaged a barn on the W640 Road and damaged or destroyed outbuildings on the W630 Road. Large tree limbs

were snapped as the tornado continued to move northeast, apparently dissipating north of the W620 Road and east of the S429 Road.

EF Scale: The enhanced Fujita scale classifies tornadoes into the following categories...

  • EF0...weak......65 To 85 mph
  • EF1...weak......86 to 110 mph
  • EF2...strong....111 to 135 mph
  • EF3...strong....136 to 165 mph
  • EF4...violent...166 to 200 mph
  • EF5...violent...>200 mph

Note:

The information in this statement is preliminary and subject to change pending final review of the events and publication in NWS storm data.