Jul 14, 2020 0100 UTC Day 1 Convective Outlook
Updated: Tue Jul 14 00:36:21 UTC 2020 (20200714 0100Z Day 1 shapefile | 20200714 0100Z Day 1 KML)
Probabilistic to Categorical Outlook Conversion Table
Categorical Graphic
20200714 0100 UTC Day 1 Outlook Graphic
Day 1 Risk Area (sq. mi.) Area Pop. Some Larger Population Centers in Risk Area
ENHANCED 59,120 665,132 St. Cloud, MN...Kearney, NE...North Platte, NE...Brainerd, MN...Sartell, MN...
SLIGHT 112,084 4,707,681 Minneapolis, MN...St. Paul, MN...Sioux Falls, SD...Sioux City, IA...Bloomington, MN...
MARGINAL 129,676 12,028,566 Boston, MA...Omaha, NE...Lincoln, NE...Amarillo, TX...Providence, RI...
Probabilistic Tornado Graphic
20200714 0100 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
5 % 14,326 571,303 St. Cloud, MN...Willmar, MN...Brainerd, MN...Sartell, MN...Bemidji, MN...
2 % 28,431 614,556 North Platte, NE...Elk River, MN...Ramsey, MN...St. Michael, MN...Buffalo, MN...
Probabilistic Damaging Wind Graphic
20200714 0100 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
SIG SEVERE 29,943 214,120 Kearney, NE...North Platte, NE...Lexington, NE...
30 % 59,718 668,604 St. Cloud, MN...Kearney, NE...North Platte, NE...Brainerd, MN...Sartell, MN...
15 % 110,375 4,524,005 Minneapolis, MN...St. Paul, MN...Sioux Falls, SD...Sioux City, IA...Bloomington, MN...
5 % 128,681 12,189,182 Boston, MA...Omaha, NE...Lincoln, NE...Amarillo, TX...Providence, RI...
Probabilistic Large Hail Graphic
20200714 0100 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
SIG SEVERE 15,318 96,228 North Platte, NE...
15 % 108,299 1,511,768 Sioux Falls, SD...St. Cloud, MN...Kearney, NE...North Platte, NE...Willmar, MN...
5 % 133,032 5,666,647 Minneapolis, MN...St. Paul, MN...Amarillo, TX...Duluth, MN...Sioux City, IA...
   SPC AC 140036

   Day 1 Convective Outlook  
   NWS Storm Prediction Center Norman OK
   0736 PM CDT Mon Jul 13 2020

   Valid 140100Z - 141200Z

   ...THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF
   THE CENTRAL HIGH PLAINS AND MINNESOTA...

   ...SUMMARY...
   Severe thunderstorms are expected from the central High Plains into
   parts of the Upper Midwest tonight.  Severe gusts, possibly
   significant, large hail and a couple of tornadoes are the threats
   with the stronger storms.

   ...01z Update...

   Large-scale 12hr mid-level height falls will spread across the
   northern Plains/Upper MS Valley tonight ahead of a pronounced upper
   trough. Early-evening vis satellite imagery suggests frontal cu
   field is deepening across western MN. With time scattered
   thunderstorms should develop south along this boundary before
   spreading east tonight. Large hail, damaging winds, and perhaps a
   few tornadoes remain possible.

   Farther south, deep convection is expanding across the central High
   Plains as it spreads east into a corridor of high instability
   characterized by 3000-4000 J/kg MLCAPE. Stronger updrafts will
   generate large hail, possibly in excess of 2 inches across western
   KS and southwest NE. Otherwise, damaging winds should become more
   common once a squall line emerges downstream.

   ..Darrow.. 07/14/2020

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