Apr 16, 2025 2000 UTC Day 1 Convective Outlook
Updated: Wed Apr 16 19:41:03 UTC 2025 (20250416 2000Z Day 1 shapefile | 20250416 2000Z Day 1 KML)
Probabilistic to Categorical Outlook Conversion Table
Categorical Graphic
20250416 2000 UTC Day 1 Outlook Graphic
Day 1 Risk Area (sq. mi.) Area Pop. Some Larger Population Centers in Risk Area
MARGINAL 122,245 5,982,764 Kansas City, MO...Omaha, NE...Wichita, KS...Lincoln, NE...Overland Park, KS...
Probabilistic Tornado Graphic
20250416 2000 UTC Day 1 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 1 Tornado Risk Area (sq. mi.) Area Pop. Some Larger Population Centers in Risk Area
No Risk Areas Forecast
Probabilistic Damaging Wind Graphic
20250416 2000 UTC Day 1 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 1 Wind Risk Area (sq. mi.) Area Pop. Some Larger Population Centers in Risk Area
5 % 77,358 2,132,861 Wichita, KS...Topeka, KS...Lawrence, KS...Enid, OK...Salina, KS...
Probabilistic Large Hail Graphic
20250416 2000 UTC Day 1 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 1 Hail Risk Area (sq. mi.) Area Pop. Some Larger Population Centers in Risk Area
5 % 121,780 5,976,218 Kansas City, MO...Omaha, NE...Wichita, KS...Lincoln, NE...Overland Park, KS...
   SPC AC 161941

   Day 1 Convective Outlook  
   NWS Storm Prediction Center Norman OK
   0241 PM CDT Wed Apr 16 2025

   Valid 162000Z - 171200Z

   ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS LATE THIS
   AFTERNOON INTO TONIGHT FROM THE TEXAS PANHANDLE TO NORTHEAST KANSAS
   AND VICINITY...

   ...SUMMARY...
   Isolated large hail and strong-severe outflow gusts are possible
   this evening into tonight from parts of the southern and central
   Plains into the lower to mid Missouri Valley.

   ...Discussion...
   The forecast is on track, and no change is needed to the previous
   outlook.

   ..Smith.. 04/16/2025

   .PREV DISCUSSION... /ISSUED 1116 AM CDT Wed Apr 16 2025/

   ...TX Panhandle to northeast KS and vicinity through tonight...
   Upper ridging that currently extends from the southern Plains into
   eastern Manitoba/northwest Ontario is forecast to shift eastward
   throughout the period. This eastward shift will occur as a shortwave
   trough drops south-southeastward through the Pacific
   Northwest/northern Rockies, phasing with the upper low off the
   southern/central CA Coast as it does. This evolution will result in
   strengthening southwesterly flow aloft from the Southwest into the
   central Plains, which in turn will foster a deepening lee surface
   trough across the High Plains and eventual surface cyclogenesis over
   the central High Plains. 

   Moisture return will also increase across the southern Plains, with
   upper 50s/low 60s dewpoints likely across much of OK by this
   evening. Some thunderstorm development could occur during the late
   afternoon/early evening where the western edge of this moisture
   interacts with a dryline that extends south from the developing
   central High Plains surface low. Convergence along this boundary
   will be modest and convective initiation remains uncertain given the
   warm mid-level temperatures and resultant capping. Even so, an
   isolated storm or two appears possible from southwest KS into the
   eastern TX Panhandle. Strong mid-level flow (and resulting long
   hodographs) support a supercellular storm mode with any convection
   that is also to deepen and persist. Large hail and damaging gusts
   would be possible with any supercells.

   Higher thunderstorm coverage is anticipated later tonight as the
   surface low and any afternoon storms move eastward across
   southwest/south-central KS into the greater low-level moisture, and
   a strengthening low-level jet fosters increased warm-air advection. 
   Hail will likely be the primary risk with these storms, but the dry
   subcloud layer in place could still support a few gusts to the
   surface as well. Overall severe coverage is still expected to remain
   low enough to keep 5%/Marginal probabilities.

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   NOTE: THE NEXT DAY 1 OUTLOOK IS SCHEDULED BY 0100Z