Area Forecast Discussion
Issued by NWS Rapid City, SD

Home | Current Version | Previous Version | Graphics & Text | Print | Product List | Glossary Off
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

543
FXUS63 KUNR 260514
AFDUNR

Area Forecast Discussion For Western SD and Northeastern WY
National Weather Service Rapid City SD
1114 PM MDT WED MAY 25 2016

.SHORT TERM...(This Evening Through Thursday Night)
Issued at 136 PM MDT Wed May 25 2016

WATER VAPOR SHOWS PERSITENT UPPER LOW OVER FAR NRN MT WITH
DISTINCT SHORT WAVE MOVING THROUGH WRN SD. AT THE SFC...LOW IS
CENTERED OVER FAR SERN ND. SCT TSTMS HAVE DEVELOPED FROM THE
BLKHLS EWD THROUGH WCNTRL SD.

REST OF THIS AFTN/TONIGHT...SCT TSTMS WILL PUSH EWD INTO CNTRL SD
AS THE AFORMENTIONED SHORT WAVE MOVES EAST. MOST AREAS SHOULD BE
PCPN FREE BY MID EVENING AS SUBSIDENCE BEHIND DEPARTING SHORT WAVE
MOVES INTO THE CWFA. ANOTHER COOL NIGHT EXPECTED WITH MOST AREAS
IN THE 40S...AND SOME 30S FROM NERN WY INTO THE BLKHLS.

THURSDAY...MAIN UPPER LOW WILL DRIFT SLOWLY EWD THROUGH ERN MT.
WITH CYCLONIC FLOW ALOFT AND MLCAPE OF 1000-2000J/KG (HIGHEST
TOWARDS THE NEB BORDER) EXPECT ANOTHER ROUND OF TSTMS. BEST SVR
THREAT SHOULD REMAIN TO OUR SOUTH/EAST.

.LONG TERM...(Friday Through Wednesday)
Issued at 136 PM MDT Wed May 25 2016

Persistent upper level trough over the northwest
CONUS will keep active southwest flow across the Northern Plains
through the Memorial Day weekend. Periodic shortwave energy will
eject out of the trough, keeping a daily chance of showers and
thunderstorms in the forecast through the holiday weekend.
Temperatures will be near seasonal averages, with highs each day
generally in the mid 60s to upper 70s. Lows at night will be in the
40s to mid 50s.

&&

.AVIATION...(For the 06Z TAFS Through 06Z Thursday Night)
Issued At 1110 PM MDT Wed May 25 2016

Isolated showers will be possible across the western half early
thurs morning. Another disturbance will bring chances for
showers/ts to the region thur aft. Mvfr/ifr conds will be
possible in shra/ts. Otherwise VFR conditions are expected.

&&

.UNR Watches/Warnings/Advisories...
SD...None.
WY...None.
&&

$$

SHORT TERM...Johnson
LONG TERM...13
AVIATION...JC



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