Severe Thunderstorm Warning 30, NWS Cheyenne, WY

SOUTHEAST WYOMING/NEBRASKA PANHANDLE AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE CHEYENNE WY
308 PM MDT THU JUN 10 1999

SVR TSTM WATCH ISSUED FOR SE WY AND MUCH OF NEBRASKA PNHNDL UNTIL
02Z THIS EVENING.  STG TSTMS HAVE DVLPD OVER RIW/CPR AREAS S TO
BTWN LAR AND RWL WITH OTHER WKR TSTMS IN SW WY CURRENTLY.  LAPS
SHOWS ONLY WK INSTABILITY SO FAR E OF LAR RANGE IN SE WY AND THRU
PNHNDL AS AMS HAS STAYED ON COOL SIDE.  WILL BE INTERESTING TO SEE
WHAT OCCURS WITH THE STG STORMS W OF AREA NOW AS THEY CONT ENE.
WILL GO WITH LKLY POPS OVER MOST OF CWA.

OVERALL...NO MAJOR MDL DIFFERENCES.  NGM HAS STGST INSTABILITY THIS
EVENING AND KEEPS IT OVERNIGHT WHILE ETA/AVN SHOW THE NEG LI WKNG
OVERNIGHT AND HAVE MORE REDVLPG FRI AFTN.  ATTM...PREFER THE LATTER
IDEA.  ALL OF THE MDLS TAKE A VORT MAX TO NERN WY BDR BY 12Z FRI
WITH SHRTWV TRAILING SSWWD WHICH COULD STILL AFFECT SE WY AND THE
NEBRASKA PNHNDL FRI AFTN.  LOW SCT POPS SHOULD BE ENOUGH IN CWA FRI
AFTN...WITH 20-30 PERCENT PLENTY FOR FRI EVENING.  FLOW DRIES SLGTLY
FOR SAT AND WILL ONLY GO WITH 10-20 PERCENT FOR PM TSTMS THEN...WITH
30 PERCENT IN MTNS.  FAN/FWC TEMPS CLOSE AND APPEAR REASONABLE.

.CYS...
WY...NONE.
NE...NONE.

JLH

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WYZ066>070-110200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
226 PM MDT THU JUN 10 1999

...SEVERE THUNDERSTORM WATCH FOR SOUTHEAST WYOMING AND PARTS OF THE
WESTERN NEBRASKA PANHANDLE UNTIL 800 PM...

A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR SOUTHEAST WYOMING AND
PARTS OF THE WESTERN NEBRASKA PANHANDLE UNTIL 900 PM...

IN WYOMING...THIS WATCH AFFECTS PEOPLE IN PLATTE...GOSHEN...
LARAMIE AND EASTERN ALBANY COUNTIES. THIS INCLUDES THE
CITIES OF CHEYENNE...PINE BLUFF...TORRINGTON AND WHEATLAND. THE CITY
OF LARAMIE IS NOT INCLUDED IN THE WATCH.

IN THE NEBRASKA PANHANDLE...THE WATCH AFFECTS SCOTTS BLUFF...
BANNER...KIMBALL...BOX BUTTE...CHEYENNE AND SOUTHERN SIOUX COUNTIES.
THIS INCLUDES SCOTTSBLUFF...ALLIANCE...SIDNEY AND KIMBALL.

A SEVERE THUNDERSTORM WATCH MEANS THAT CONDITIONS ARE FAVORABLE FOR
LARGE HAIL...DAMAGING WINDS AND DEADLY LIGHTNING IN AND CLOSE TO THE
WATCH AREA. STAY TUNED TO YOUR FAVORITE SOURCE OF WEATHER INFORMATION
STATEMENTS FOR LATER STATEMENTS AND POSSIBLE WARNINGS.

WCJIN-WYSE-
BANN