Severe Thunderstorm Warning 75, NWS Rapid City, SD

AREA FORECAST DISCUSSION FOR WESTERN SD AND NORTHEASTERN WY
NATIONAL WEATHER SERVICE RAPID CITY SD
200 PM MDT WED JUN 27 2001

WARM FNT STILL LOCATED NEAR THE ND/SD BORDER. A TROF EXTENDS THRU
FAR WRN SD INTO NE PANHANDLE. A CPLE OF TSMS HAVE DVLPED IN NRN
LAWRENCE AND SOUTHERN BUTTE COUNTIES THIS AFTN. THINK THAT AS S/W
CURRENTLY THRU CTRL WY MVS IN A FEW MORE STORMS COULD DVLP WITH
PLENTY OF MOISTURE AND INSTABILITY AROUND. TROF AND S/W FCST TO BE
THRU ALL BUT ERN COUNTIES OF CWA BY MRNG...SO MAY HAVE SOME SHOWER
ACTIVITY THRU THE NIGHT. TEMPS TNGT LK SIMILAR TO LAST NIGHT WITH
THERMAL RDG OVR PLNS OF SD AND SOME CLDS AROUND. MOS TEMPS LK GD.

TMRW...A COLD FNT WL MOVE INTO NW SD LATE IN THE AFTN. NOT MUCH IN
THE WAY OF UPR LVL SUPPORT THOUGH. DO THINK THAT A FEW STORMS COULD
DVLP IN THE NW AND HILLS AS TEMPS WARM UP TO NEAR 90 AGAIN.
OTHERWISE EXPECT IT TO BE DRY ACRS REMAINDER OF CWA.

THU NIGHT...COLD FNT WILL CONTINUE TO MOVE ACRS CWA. DO START TO GET
A LTL UPR LVL SUPPORT AND INCRSG MOISTURE. LIS ALSO REMAIN AROUND
-4 ACRS AREA. LKS LIKE FNT WILL NOT MAKE IT INTO FAR SRN COUNTIES SO
JUST WENT WITH SOME ISOLD POPS THERE AND 30-40 POPS ELSEWHERE.

BY FRI...FNT FINALLY MOVES OUT OF AREA. NE WY SHLD STAY DRY WITH NVA
OVR AREA. MOISTURE REMAINS THRU SD ALONG WITH SOME PVA AND DECENT
THETA-E ADV. WENT WITH SCT POPS THRU SD. ETA LKS A LTL WARM WITH
TEMPS GIVEN THE FNT PASSING THRU. COMPROMISED BETWEEN THE ETA AND
AVN TEMPS WHICH GIVES HIGHS ABOUT 5 TO 10 DEG COOLER THAN THU. A FEW
STORMS COULD LINGER IN THE FAR E IN THE EARLY EVE...OTHERWISE EXPECT
PTLY CLDY SKIES AND COOLER LOW TEMPS THAN LAST 4 OR 5 DAYS.

IN THE EXTENDED...A QUICK WARMUP EARLY IN THE PD WL BE FOLLOWED BY A
SERIES OF WAVES THRU THE FIRST HALF OF NEXT WEEK. TEMPS SHLD BE NEAR
NORMAL WITH A CHC FOR TSMS EACH DAY.

.UNR...SEVERE THUNDERSTORM WATCH FOR HARDING COUNTY UNTIL 9 PM.

JMG