Severe Storm Outlook Narrative (AC)
Issued by NWS

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
000
ACUS01 KWNS 200049
SWODY1
SPC AC 200047

DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0747 PM CDT SAT APR 19 2014

VALID 200100Z - 201200Z

...NO SVR TSTM AREAS FORECAST...

...SUMMARY...
THE SEVERE WIND AND HAIL THREAT...ACCOMPANYING A CLUSTER OF INTENSE
STORMS ADVANCING EAST OF THE MOUNTAINS OF SOUTHWEST TEXAS...IS
EXPECTED TO DIMINISH AS ACTIVITY SPREADS ACROSS THE PECOS VALLEY
THIS EVENING.

...INTERMOUNTAIN WEST/ROCKIES/PLAINS...
AN INTENSE STORM CLUSTER NOW PROGRESSING EASTWARD INTO THE PECOS
VALLEY REMAINS THE MOST SIGNIFICANT ONGOING CONVECTION.  AND...WITH
ONLY SOME FURTHER STRENGTHENING OF SOUTHERLY 850 FLOW TO AROUND 30
KTS EXPECTED ACROSS THE REGION THIS EVENING...DRIER AND MORE STABLE
CONDITIONS TO THE EAST PROBABLY WILL RESULT IN FAIRLY RAPID
WEAKENING OF ACTIVITY THROUGH 02-03Z.

OTHERWISE...WEAK THUNDERSTORM ACTIVITY DRIVEN BY LOWER/MID
TROPOSPHERIC WARM ADVECTION MAY CONTINUE FROM THE NORTH CENTRAL
PLAINS INTO THE MID MISSOURI VALLEY TONIGHT.  OTHER GENERALLY WEAK
THUNDERSTORM ACTIVITY COULD SPREAD NORTHEAST OF THE SOUTHERN
ROCKIES...INTO THE SOUTHERN PLAINS...IN ADVANCE OF LARGER SCALE
UPPER TROUGHING.  MOST OTHER ONGOING STORMS ACROSS THE INTERMOUNTAIN
WEST AND ROCKIES ARE EXPECTED TO CONTINUE TO DIMINISH THROUGH
02-04Z...WITH THE LOSS OF SURFACE HEATING.

...GEORGIA/SOUTH CAROLINA/NE FLORIDA COAST...
SCATTERED WEAK THUNDERSTORM ACTIVITY LINGERS ACROSS THE COASTAL
PLAIN...BUT AS THE MID-LEVEL COLD CORE OF THE UPPER LOW PROGRESSES
OFFSHORE THROUGH THE 03-06Z TIME FRAME...THE RISK FOR CONTINUING
DEVELOPMENT INLAND OF COASTAL AREAS IS EXPECTED TO DIMINISH.

..KERR.. 04/20/2014




USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.