Sep 6, 2019 0100 UTC Day 1 Convective Outlook
Updated: Fri Sep 6 00:47:27 UTC 2019 (20190906 0100Z Day 1 shapefile | 20190906 0100Z Day 1 KML)
Probabilistic to Categorical Outlook Conversion Table
Categorical Graphic
20190906 0100 UTC Day 1 Outlook Graphic
Day 1 Risk Area (sq. mi.) Area Pop. Some Larger Population Centers in Risk Area
SLIGHT 8,505 417,111 Virginia Beach, VA...Elizabeth City, NC...Washington, NC...
MARGINAL 53,365 1,766,923 Norfolk, VA...Chesapeake, VA...Portsmouth, VA...Suffolk, VA...Greenville, NC...
Probabilistic Tornado Graphic
20190906 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 % 8,352 276,739 Elizabeth City, NC...Washington, NC...
2 % 4,417 1,371,646 Virginia Beach, VA...Norfolk, VA...Chesapeake, VA...Portsmouth, VA...Suffolk, VA...
Probabilistic Damaging Wind Graphic
20190906 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
5 % 57,229 866,014 Bend, OR...Springfield, OR...Redmond, OR...Elizabeth City, NC...Washington, NC...
Probabilistic Large Hail Graphic
20190906 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
5 % 25,044 415,600 Bend, OR...Springfield, OR...Redmond, OR...
   SPC AC 060047

   Day 1 Convective Outlook  
   NWS Storm Prediction Center Norman OK
   0747 PM CDT Thu Sep 05 2019

   Valid 060100Z - 061200Z

   ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS TONIGHT ACROSS THE
   OUTER AND INNER BANKS VICINITY OF NORTH CAROLINA AND PERHAPS
   ADJACENT PORTIONS OF THE VIRGINIA TIDEWATER...

   ...SUMMARY...
   The risk for a couple of additional tornadoes continues tonight,
   mainly across the Outer and Inner Banks vicinity of North Carolina. 
   Otherwise, strong storms may continue to impact much of Oregon into
   this evening, accompanied by some risk for severe wind and hail.

   ...01Z Outlook Update...

   ...South Atlantic Coast...
   Although the center of Hurricane Dorian is just now reaching the
   southern North Carolina coastal vicinity, south of Wilmington,
   tropical boundary layer air, characterized by temperatures in the
   lower 80s F and dew points in the upper 70s, is now largely confined
   to the North Carolina Outer Banks vicinity into portions of the
   Inner Banks.  This environment appears to offer the best support for
   any appreciable continuing risk for occasional tornado development,
   as outer convective bands pivot across this region, in the presence
   of strong low-level shear.  This could linger into the 09-12Z time
   frame, before shifting east of southern Mid Atlantic coastal areas,
   ahead of the gradually northeastward accelerating center of Dorian.

   ...Oregon...
   Widespread convection and associated outflow appears to be in the
   process of stabilizing the environment, but a couple of strong
   storms may continue to pose at least some risk for severe wind and
   hail into the 02-04Z time frame.

   ..Kerr.. 09/06/2019

   CLICK TO GET WUUS01 PTSDY1 PRODUCT

   NOTE: THE NEXT DAY 1 OUTLOOK IS SCHEDULED BY 0600Z