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April 21-23(?), 2022 | Severe Weather


ClicheVortex2014

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  • Meteorologist
17 minutes ago, MaineJay said:

My dad is currently camping in Kansas, not sure what town yet, but he just sent me a couple pictures from there.

IMG_20220421_210827.thumb.jpg.0e926508679b30c88fdd4dc14dcd4eab.jpg

IMG_20220421_210815.thumb.jpg.ff3158958a8ea931b9636efd5e1d2681.jpg

Absolutely incredible

18 minutes ago, ClicheVortex2014 said:

Gee I wonder where the CWA border is

C4601B69-8C1B-4DA5-AD79-964959EEF18F.png

 

2F807EDA-5A51-4453-9616-D3BEAABB50E7.png

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That tornado warned cell also has possible 2" hail.

Quote
Severe Weather Statement
National Weather Service Dodge City KS
828 PM CDT Thu Apr 21 2022

KSC047-220200-
/O.CON.KDDC.TO.W.0001.000000T0000Z-220422T0200Z/
Edwards KS-
828 PM CDT Thu Apr 21 2022

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 900 PM CDT FOR
SOUTHWESTERN EDWARDS COUNTY...

At 828 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Windhorst, moving northeast at 25 mph.

HAZARD...Tornado and two inch 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.

Locations impacted include...
Kinsley.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 3780 9956 3796 9952 3789 9934 3774 9949
      3774 9955 3775 9956
TIME...MOT...LOC 0128Z 214DEG 21KT 3780 9953

TORNADO...RADAR INDICATED
MAX HAIL SIZE...2.00 IN

 

 

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Whats interesting about this evening is that the northernmost supercell was in the most favorable conditions for a tornado, yet it was the southernmost one that actually warranted a tornado warning. Goes to show there’s more to it than parameters. This time it was the boundary marked by a temp gradient and a change in surface winds.

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The CAMs have some isolated cells tomorrow between Pine Ridge, SD and the Black Hills, possibly traveling to Rapid City and northeastward.  Storm-relative helicity could be in the range of 400m2/s2 to 800m2/s2 with some significant elevated CAPE.

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Although whatever happens tomorrow might throw a wrench in it, I think Saturday will be another big severe weather day. Negative tilt finally ejects from the Rockies... sub-990mb low. Storm mode might be tricky but there should be plenty of low-level shear with a negative tilt and a low this strong... and dew points might get into the mid-60s which is pretty impressive for anyone north of I70 at this time of year... much less Minnesota.

Edited by ClicheVortex2014
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Severe storms have fired up in southern NE.

Quote
URGENT - IMMEDIATE BROADCAST REQUESTED
   Severe Thunderstorm Watch Number 140
   NWS Storm Prediction Center Norman OK
   1115 PM CDT Thu Apr 21 2022

   The NWS Storm Prediction Center has issued a

   * Severe Thunderstorm Watch for portions of 
     Extreme southwest Iowa
     South central into east central Nebraska

   * Effective this Thursday night and Friday morning from 1115 PM
     until 600 AM CDT.

   * Primary threats include...
     Scattered large hail and isolated very large hail events to 2
       inches in diameter possible
     Isolated damaging wind gusts to 60 mph possible

   SUMMARY...Elevated thunderstorms, some with supercell structures,
   will persist overnight with a primary threat for occasional large
   hail of 1.5 to 2 inches in diameter.  The strongest storms may also
   produce isolated damaging gusts up to 60 mph.

   The severe thunderstorm watch area is approximately along and 45
   statute miles north and south of a line from 30 miles west of Grand
   Island NE to 45 miles south southeast of Tekamah NE. For a complete
   depiction of the watch see the associated watch outline update
   (WOUS64 KWNS WOU0).

   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.

   &&

   AVIATION...A few severe thunderstorms with hail surface and aloft to
   2 inches. Extreme turbulence and surface wind gusts to 50 knots. A
   few cumulonimbi with maximum tops to 500. Mean storm motion vector
   23025.

   ...Thompson

 

 

ww0140_radar.gif

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Quote
DAY 1 CONVECTIVE OUTLOOK    
NWS STORM PREDICTION CENTER NORMAN OK  
1257 AM CDT FRI APR 22 2022  
  
VALID 221200Z - 231200Z  
  
...THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF  
THE SOUTHERN AND CENTRAL HIGH PLAINS...  
   
..SUMMARY  
  
SEVERE THUNDERSTORMS ARE EXPECTED TO DEVELOP ACROSS PARTS OF THE  
GREAT PLAINS INTO UPPER MIDWEST FRIDAY FROM LATE THIS AFTERNOON  
THROUGH TONIGHT. SUPERCELL THUNDERSTORMS CAPABLE OF ALL SEVERE  
HAZARDS, INCLUDING TORNADOES AND VERY LARGE HAIL, ARE POSSIBLE,  
PARTICULARLY FROM THE TEXAS PANHANDLE INTO NORTH-CENTRAL NEBRASKA.  
   
..SOUTHERN AND CENTRAL HIGH PLAINS  
  
A PROGRESSIVE UPPER-LEVEL TROUGH WILL MOVE QUICKLY  
EAST-NORTHEASTWARD ACROSS THE DESERT SOUTHWEST TODAY, AS A 80 TO 100  
KNOT MID-LEVEL JET ROUNDS THE BASE OF THE TROUGH. THE EXIT REGION OF  
THE MID-LEVEL JET WILL OVERSPREAD THE SOUTHERN AND CENTRAL HIGH  
PLAINS THIS AFTERNOON, INCREASING LARGE-SCALE ASCENT AND  
STRENGTHENING DEEP-LAYER SHEAR. THIS ALONG WITH A MOIST AND UNSTABLE  
AIRMASS WILL MAKE CONDITIONS FAVORABLE FOR SEVERE STORMS.  
  
AT THE SURFACE, A LOW WILL RAPIDLY DEEPEN ACROSS NORTHEASTERN  
COLORADO TODAY AS STRONG MOISTURE ADVECTION OCCURS TO THE EAST OF A  
HIGH PLAINS DRYLINE. SURFACE DEWPOINTS WILL INCREASE INTO THE UPPER  
50S TO LOWER 60S F BY MID AFTERNOON FROM THE TEXAS PANHANDLE  
NORTHWARD ACROSS WESTERN KANSAS INTO WEST-CENTRAL NEBRASKA. THIS  
WILL CONTRIBUTE TO MODERATE DESTABILIZATION AS SURFACE TEMPERATURES  
WARM DURING THE DAY, WITH MLCAPE REACHING THE 2000 TO 2500 J/KG  
RANGE. THE CAPPING INVERSION IS FORECAST TO WEAKEN BY LATE  
AFTERNOON, WHICH WILL ALLOW FOR RAPID CONVECTIVE DEVELOPMENT ALONG A  
NARROW CORRIDOR FROM THE CENTRAL TEXAS PANHANDLE NORTH-NORTHEASTWARD  
ACROSS WESTERN KANSAS INTO CENTRAL NEBRASKA. THUNDERSTORMS WILL  
QUICKLY GROW UPSCALE EARLY THIS EVENING, WITH MULTIPLE CONVECTIVE  
CLUSTERS PERSISTING INTO THE MID TO LATE EVENING.  
  
IN ADDITION TO THE MODERATE INSTABILITY, RAP FORECAST SOUNDINGS  
ALONG THE INSTABILITY AXIS EARLY THIS EVENING HAVE GRADUALLY VEERING  
WINDS WITH HEIGHT IN THE LOW TO MID-LEVELS, WITH 0-6 KM SHEAR IN THE  
35 TO 45 KNOT RANGE. 0-6 KM SHEAR IS FORECAST TO STEADILY INCREASE  
AS THE EXIT REGION OF THE MID-LEVEL JET OVERSPREADS THE CENTRAL  
PLAINS DURING THE EVENING. THIS ALONG WITH 700-500 MB LAPSE RATES IN  
THE 7.5 TO 8.5 C/KM RANGE WILL BE VERY FAVORABLE FOR SUPERCELLS WITH  
LARGE HAIL. HAILSTONES OF GREATER THAN 2 INCHES IN DIAMETER WILL BE  
POSSIBLE WITH THE MORE INTENSE SUPERCELL UPDRAFTS, FROM WEST TEXAS  
INTO SOUTHWEST KANSAS, WHERE INSTABILITY AND LAPSE RATES ARE  
FORECAST TO BE MOST FAVORABLE. AS THE LOW-LEVEL JET STRENGTHENS  
DURING THE EARLY TO MID EVENING, 0-3 KM STORM RELATIVE HELICITY WILL  
BECOME INCREASINGLY FAVORABLE FOR TORNADOES AS WELL. WIND DAMAGE IS  
ALSO EXPECTED WITH THE STRONGER CELLS. THE POTENTIAL FOR WIND DAMAGE  
AND HAIL COULD PERSIST INTO THE LATE EVENING, AS THE MID-LEVEL  
SYSTEM MOVES OUT INTO THE CENTRAL HIGH PLAINS.  
   
..NORTHERN PLAINS/MID MISSOURI VALLEY/UPPER MIDWEST  
  
AN UPPER-LEVEL TROUGH WILL QUICKLY MOVE EASTWARD THROUGH THE DESERT  
SOUTHWEST TODAY AS A 80 TO 100 KNOT MID-LEVEL JET MOVES THROUGH THE  
BASE OF THE TROUGH. MODERATE INSTABILITY AND STRONG DEEP-LAYER SHEAR  
WILL BE IN PLACE BY AFTERNOON, MAKING CONDITIONS FAVORABLE FOR  
ORGANIZED SEVERE STORMS. AT THE SURFACE, A LOW WILL RAPIDLY DEEPEN  
ACROSS NORTHEASTERN COLORADO TODAY, AND MOVE NORTH-NORTHEASTWARD  
INTO WESTERN NEBRASKA. A WARM FRONT EXTENDING EASTWARD FROM THE LOW  
WILL ADVANCE NORTHWARD ACROSS NEBRASKA THIS AFTERNOON AND INTO  
SOUTHERN SOUTH DAKOTA THIS EVENING. AS LOW-LEVEL CONVERGENCE  
INCREASES NEAR AND TO THE NORTH OF THE SURFACE LOW DURING THE LATE  
AFTERNOON, CONVECTION WILL LIKELY INITIATE AND MOVE  
NORTH-NORTHEASTWARD ACROSS NORTHWESTERN NEBRASKA AND SOUTHWESTERN  
SOUTH DAKOTA. CONVECTIVE COVERAGE IS EXPECTED TO RAPIDLY INCREASE  
ACROSS THE NORTHERN PLAINS DURING THE EVENING AS THE EXIT REGION OF  
THE MID-LEVEL JET MOVES INTO THE AREA FROM THE SOUTHWEST. THE  
CURRENT THINKING IS THAT A LINE OF STRONG TO SEVERE STORMS WILL MOVE  
EASTWARD THROUGH WESTERN NEBRASKA AND WESTERN SOUTH DAKOTA DURING  
THE EVENING, WITH SUPERCELLS DEVELOPING AHEAD OF THE LINE FURTHER TO  
THE EAST.  
  
NAM FORECAST SOUNDINGS AT VALENTINE, NEBRASKA NEAR THE PEAK OF  
INSTABILITY EARLY THIS EVENING HAVE A LOADED GUN PROFILE WITH MLCAPE  
IN THE 2500 TO 3000 J/KG RANGE. THIS ALONG WITH LAPSE RATES  
APPROACHING 8.0 C/KM IN THE 700 TO 500 MB LAYER WILL BE FAVORABLE  
FOR SUPERCELLS WITH LARGE HAIL. IN ADDITION, HODOGRAPHS ARE LONG AND  
LOOPED WITH 0-3 KM STORM RELATIVE HELICITIES NEAR 400 M2/S2. THIS  
WILL BE FAVORABLE FOR TORNADOES AS WELL WITH THE MORE DOMINANT  
CELLS, ESPECIALLY AS THE LOW-LEVEL JET RAMPS UP QUICKLY DURING THE  
EARLY EVENING. WIND DAMAGE WILL ALSO BE POSSIBLE. THE THREAT SHOULD  
PERSIST THROUGH THE EVENING AND INTO THE EARLY OVERNIGHT PERIOD AS  
STORMS MOVE EAST-NORTHEASTWARD INTO THE EASTERN DAKOTAS LATE IN THE  
PERIOD.  
  
FURTHER EAST ACROSS THE UPPER MIDWEST, AN ISOLATED SEVERE THREAT  
COULD DEVELOP DURING THE EVENING ALONG THE WARM FRONT. HOWEVER, WEAK  
INSTABILITY SHOULD LIMIT SEVERE THREAT COVERAGE. HAIL AND STRONG  
GUSTY WINDS WILL BE THE PRIMARY THREATS.  
  
..BROYLES/JIRAK.. 04/22/2022  
  

 

 

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spccoday1.tornado.latest.png

spccoday1.hail.latest.png

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5 hours ago, StormfanaticInd said:

Never gets old! It has always amazed how a small puffy cumulus cloud can just explode into supercells 

It was funny, my dad texted me and was like, "what's this over my campground?". Last I talked to him, he was in Arizona, so I was confused when looking at the radar.  Then he told me he was in KS, but not the town, so I'm like, well, there are some potential dangerous storms in the area.  He is driving to Missouri today, so I can't get him to do any storm chasing in his camper converted sprinter van.

   I'm Maine, we don't get to see structures like that very often, so it was pretty cool to get the pics, especially when I knew he was out of harms way.

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