Mar 11, 2017 0600 UTC Day 1 Convective Outlook
Updated: Sat Mar 11 05:24:06 UTC 2017 (20170311 1200Z Day 1 shapefile | 20170311 1200Z Day 1 KML)
Probabilistic to Categorical Outlook Conversion Table
Categorical Graphic
20170311 1200 UTC Day 1 Outlook Graphic
Day 1 Risk Area (sq. mi.) Area Pop. Some Larger Population Centers in Risk Area
MARGINAL 46,084 650,196 Midland, TX...Odessa, TX...San Angelo, TX...Hobbs, NM...Big Spring, TX...
Probabilistic Tornado Graphic
20170311 1200 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
20170311 1200 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 % 45,056 638,703 Midland, TX...Odessa, TX...San Angelo, TX...Hobbs, NM...Big Spring, TX...
Probabilistic Large Hail Graphic
20170311 1200 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 % 45,360 639,107 Midland, TX...Odessa, TX...San Angelo, TX...Hobbs, NM...Big Spring, TX...
   SPC AC 110524

   Day 1 Convective Outlook  
   NWS Storm Prediction Center Norman OK
   1124 PM CST Fri Mar 10 2017

   Valid 111200Z - 121200Z

   ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS THE
   PERMIAN BASIN AND VICINITY...

   ...SUMMARY...
   A few thunderstorms may produce marginally severe hail and
   occasional gusty winds across southeast New Mexico and west Texas
   Saturday evening into the early overnight hours.

   ...Synopsis...
   Cyclonic mid-level flow will persist across much of the US east of
   the Rockies today, as a closed low at its center slowly migrates
   east across the Canadian Maritimes. Along the southwestern periphery
   of the larger-scale trough, multiple embedded impulses (currently
   noted in water-vapor imagery across the northern Rockies and
   Inter-Mountain West) will advance southeast across the central US.
   In the wake of these impulses, surface high pressure will build over
   much of the Plains states, forcing a cold front to push south across
   the southern high Plains.

   ...Permian Basin and vicinity...
   As the aforementioned surface front moves south across parts of west
   Texas and southeastern New Mexico late in the day, it will encounter
   dew points in the 40s to near 50. While these will have decreased
   through the day in response to deep mixing, steep mid-level lapse
   rates will contribute to approximately 500-1000 J/kg of MLCAPE. By
   early evening, a few thunderstorms should organize along the front
   and propagate southward. Relatively weak tropospheric flow will
   likely favor multicellular structures, but a veering profile with
   height may yield enough updraft organization for marginally severe
   hail production. Also, cells forming off higher terrain to the west
   may eventually merge with this frontal convection, offering the
   potential for very modest upscale growth and resultant gusty winds.
   Over time through the evening and overnight, the front will have a
   tendency to undercut new updrafts, reducing any remaining severe
   threat.

   ..Picca/Broyles/Mosier.. 03/11/2017

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   NOTE: THE NEXT DAY 1 OUTLOOK IS SCHEDULED BY 1300Z