Jun 8, 2020 0600 UTC Day 2 Convective Outlook
Updated: Mon Jun 8 05:54:34 UTC 2020 (20200608 0600Z Day 2 shapefile | 20200608 0600Z Day 2 KML)
Probabilistic to Categorical Outlook Conversion Table
Categorical Graphic
20200608 0600 UTC Day 2 Outlook Graphic
Day 2 Risk Area (sq. mi.) Area Pop. Some Larger Population Centers in Risk Area
SLIGHT 77,684 7,188,538 Indianapolis, IN...Lincoln, NE...Topeka, KS...Springfield, IL...Evansville, IN...
MARGINAL 319,305 49,581,091 Chicago, IL...San Antonio, TX...Memphis, TN...Milwaukee, WI...Nashville, TN...
Probabilistic Tornado Graphic
20200608 0600 UTC Day 2 Tornado Probabilities Graphic
Probability of a tornado within 25 miles of a point.
Hatched Area: 10% or greater probability of EF2 - EF5 tornadoes within 25 miles of a point.
Day 2 Tornado Risk Area (sq. mi.) Area Pop. Some Larger Population Centers in Risk Area
5 % 45,037 5,137,560 Indianapolis, IN...Evansville, IN...Decatur, IL...Champaign, IL...Bloomington, IN...
2 % 229,588 40,490,992 Chicago, IL...Memphis, TN...Milwaukee, WI...Nashville, TN...St. Louis, MO...
Probabilistic Damaging Wind Graphic
20200608 0600 UTC Day 2 Damaging Wind Probabilities Graphic
Probability of damaging thunderstorm winds or wind gusts of 50 knots or higher within 25 miles of a point.
Hatched Area: 10% of greater probability of wind gusts 65 knots or greater within 25 miles of a point.
Day 2 Wind Risk Area (sq. mi.) Area Pop. Some Larger Population Centers in Risk Area
15 % 56,929 6,506,283 Indianapolis, IN...Springfield, IL...Evansville, IN...Peoria, IL...Decatur, IL...
5 % 343,915 51,644,350 Chicago, IL...San Antonio, TX...Austin, TX...Memphis, TN...Milwaukee, WI...
Probabilistic Large Hail Graphic
20200608 0600 UTC Day 2 Large Hail Probabilities Graphic
Probability of hail 1" or larger within 25 miles of a point.
Hatched Area: 10% or greater probability of hail 2" or larger within 25 miles of a point.
Day 2 Hail Risk Area (sq. mi.) Area Pop. Some Larger Population Centers in Risk Area
15 % 20,787 844,599 Lincoln, NE...Topeka, KS...Manhattan, KS...Junction City, KS...Beatrice, NE...
5 % 157,003 15,971,591 Indianapolis, IN...Kansas City, MO...Omaha, NE...St. Louis, MO...Overland Park, KS...
   SPC AC 080554

   Day 2 Convective Outlook  
   NWS Storm Prediction Center Norman OK
   1254 AM CDT Mon Jun 08 2020

   Valid 091200Z - 101200Z

   ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS OVER PARTS OF
   ILLINOIS...INDIANA...AND WESTERN KENTUCKY...AND FROM SOUTHEAST
   NEBRASKA INTO NORTHEAST KANSAS...

   ...SUMMARY...
   Scattered strong to severe storms are expected Tuesday over parts of
   the Missouri, mid Mississppi and Ohio Valleys during the day and
   evening, with a few tornadoes possible in addition to localized wind
   damage. Hail is possible as well over parts of Nebraska and Kansas,
   with isolated strong storms into southern and eastern Texas
   overnight.

   ...Synopsis...
   The remnants of Cristobal, surface and aloft, will continue
   north/northeast across MO and IL during the day, enhancing lift and
   shear profiles, and bringing substantial low-level moisture north.
   Meanwhile, a potent shortwave trough will be over the central Plains
   by 00Z, and will continue east toward the MS Valley with rapid
   height falls.

   At the surface, the low associated with Cristobal will move from MO
   into eastern IA through 00Z, with a warm front roughly from Lower MI
   into southern WI. Winds aloft will rapidly veer over the MS Valley
   with the passage of the first wave, then back again after 00Z as the
   main trough approaches.

   Various model solutions exist regarding the best area of storm
   potential and destabilization. However, the general idea is for a
   few supercells during the day with tornado threat from the mid MS
   into the lower OH Valley areas, with a daytime threat across NE and
   KS near the upper trough.

   ...IL...IN...western KY...parts of adjacent states...
   Storm potential is expected to shift from northern MS and TN into
   KY, IL and IN throughout the day, with a moist environment and
   low-level shear supporting rotation. Models suggest the best SRH
   (over 300 m2/s2) will be over western KY, eastern IL, and much of IN
   by late afternoon, and will continue north into Lower MI after 00Z
   where instability will be less. Ample moisture will support storms
   scattered over the entire area, beginning in the morning over
   northern MS and western TN, then rapidly shifting north. 

   Overnight, a very moist air mass will remain, and may support
   additional strong to severe storms as the cold front arrives into
   Wednesday morning.

   ...NE/KS/MO...
   Models suggest a surface low will develop over northeast KS,
   possibly southeast NE during the day as the strong upper vort max
   approaches. Mid to upper 60s F dewpoints may remain in a narrow
   corridor wrapping northwestward around the low, supporting a pocket
   of moderate instability. Strongly backed low-level winds combined
   with increasing shear aloft will favor a few supercells before the
   cold front stabilizes the area. A tornado is possible as well.

   ...Southern into eastern TX into LA overnight...
   Confidence is low regarding thunderstorm potential along overnight
   with a variety of model depictions. However, a very moist air mas
   will remain ahead of the cold front, which will be weakly
   convergent. Areas of thunderstorms may occur along the boundary,
   with a marginal wind gust threat as shear will be weak.

   ..Jewell.. 06/08/2020

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   NOTE: THE NEXT DAY 2 OUTLOOK IS SCHEDULED BY 1730Z