Jump to content
  • Member Statistics

    15,514
    Total Members
    7,904
    Most Online
    Raifu
    Newest Member
    Raifu
    Joined
snowlover2

August 20-21 Severe Weather

Recommended Posts

Yeah we'll see.  3km NAM doesn't really have anything.  Environment definitely looks volatile though.  

Share this post


Link to post
Share on other sites

Looks like an overzealous outlook.

The main threat will be across IA into W IL later tonight into early tomorrow morning, before a weakening MCS spreads east from there. There's high agreement for that scenario as well.

Share this post


Link to post
Share on other sites

Here's the image for the 20th. 30% SIG hail and Wind. 

A number of the models have this derecho looking line falling apart as it gets into central IN. 

day2otlk_1730.gif

Share this post


Link to post
Share on other sites
URGENT - IMMEDIATE BROADCAST REQUESTED
   Severe Thunderstorm Watch Number 601
   NWS Storm Prediction Center Norman OK
   1155 PM CDT Mon Aug 19 2019

   The NWS Storm Prediction Center has issued a

   * Severe Thunderstorm Watch for portions of 
     Western and central Iowa
     Far southwest Minnesota
     Far southeast South Dakota

   * Effective this Monday night and Tuesday morning from 1155 PM
     until 700 AM CDT.

   * Primary threats include...
     Scattered damaging winds likely with isolated significant gusts
       to 75 mph possible
     Scattered large hail and isolated very large hail events to 2.5
       inches in diameter possible

   SUMMARY...Multiple elevated supercells will likely develop through
   the early morning hours before growing upscale into a linear cluster
   that may eventually bow across central to south-central Iowa.

   The severe thunderstorm watch area is approximately along and 75
   statute miles east and west of a line from 45 miles east of Lamoni
   IA to 15 miles west northwest of Worthington MN. For a complete
   depiction of the watch see the associated watch outline update
   (WOUS64 KWNS WOU1).

   PRECAUTIONARY/PREPAREDNESS ACTIONS...

   REMEMBER...A Severe Thunderstorm Watch means conditions are
   favorable for severe thunderstorms in and close to the watch area.
   Persons in these areas should be on the lookout for threatening
   weather conditions and listen for later statements and possible
   warnings. Severe thunderstorms can and occasionally do produce
   tornadoes.

Share this post


Link to post
Share on other sites
17 minutes ago, Hoosier said:

Line looking pretty good for now, especially the central IL portion.  

Yeah, we'll have to see if it maintains or increases its momentum as it enters IN.  Pretty juicy here at 84/74.  Also concerned about the line entering LaCrosse CWA now for Chi- town and NW IN later.

Share this post


Link to post
Share on other sites

A few counties in NW IN just added to current watch. That seems pretty telling that it's not going as far south as expected.

Share this post


Link to post
Share on other sites
Looks like an overzealous outlook.
The main threat will be across IA into W IL later tonight into early tomorrow morning, before a weakening MCS spreads east from there. There's high agreement for that scenario as well.

As expected...

The SPC holding on to the ENH with the new D1 is lolz.


.

Share this post


Link to post
Share on other sites

SOURCE...ASOS OBSERVATION. AT 243 PM, A 73 MPH THUNDERSTORM WIND   
         GUST WAS REPORTED AT THE INDIANAPOLIS INTERNATIONAL AIRPORT.  
  

Share this post


Link to post
Share on other sites
27 minutes ago, Indystorm said:

SOURCE...ASOS OBSERVATION. AT 243 PM, A 73 MPH THUNDERSTORM WIND   
         GUST WAS REPORTED AT THE INDIANAPOLIS INTERNATIONAL AIRPORT.  
  

I saw that. It looks like the leading edge is right over your head, although from velocities on radar, it looks like I-70 and south is getting raked with winds.

Share this post


Link to post
Share on other sites
13 minutes ago, IWXwx said:

I saw that. It looks like the leading edge is right over your head, although from velocities on radar, it looks like I-70 and south is getting raked with winds.

Yes. the heavier part of the storm was to the south of me with southern Hancock being affected.   I had some good winds with the gust front several minutes prior to the rain here IMBY but lucked out on the svr.  Lots of tree and power line damage reports coming in from Indy metro west to the state line though.  Had to phone IND NWS prior to the storm arrival though because NWS warning polygons were not appearing on their radar site.  Got it corrected.

Share this post


Link to post
Share on other sites
On 8/20/2019 at 11:40 AM, Chicago Storm said:


As expected...

The SPC holding on to the ENH with the new D1 is lolz.


.

I'd say there's been far worse "misses" than this.  

190819_rpts_filtered.gif.e56111c02d6c73d5d4f95373131559a6.gif

190820_rpts_filtered.gif.ef508c04607f187cdc5c26ba6bfd8002.gif

Share this post


Link to post
Share on other sites
23 hours ago, Hoosier said:

I'd say there's been far worse "misses" than this.  

190819_rpts_filtered.gif.e56111c02d6c73d5d4f95373131559a6.gif

190820_rpts_filtered.gif.ef508c04607f187cdc5c26ba6bfd8002.gif

Looks like the ENH was nailed if you ask me.

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

  • Recently Browsing   0 members

    No registered users viewing this page.

×