Severe Thunderstorm Warning 4, NWS Cheyenne, WY

WYZALL-131930-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
1105 AM MDT SUN MAY 13 1990

...A COOL WEATHER SYSTEM AFFECTING MUCH OF WYOMING FOR MOTHERS DAY...

A VIGOROUS UPPER AIR WEATHER SYSTEM WAS MOVING INTO WESTERN WYOMING
LATE THIS MORNING.  THE SYSTEM WAS BRINGING WET SNOW TO THE MOUNTAINS
OF WESTERN AND NORTHERN WYOMING.  LIGHT RAIN WAS COMMON AT LOWER
ELEVATIONS OF THE CENTRAL AND NORTH WITH SCATTERED SHOWERS AND
THUNDERSTORMS IN THE SOUTH.

UP TO SIX INCHES OF SNOW HAD FALLEN IN THE WIND RIVER MOUNTAINS OF
WEST CENTRAL WYOMING AS OF 1100 AM MDT.  TWO TO FOUR INCHES WAS NOTED
THROUGHOUT MUCH OF YELLOWSTONE PARK ABOVE THE 7000 FOOT LEVEL.  WITH
TEMPERATURES RISING ABOVE THE FREEZING MARK LATE THIS MORNING...MOST
OF THE SNOW WAS MELTING AND MOUNTAIN PASSES WERE BECOMING SLUSHY.

AS THE WEATHER SYSTEM CONTINUES ACROSS WYOMING TODAY...THE WET SNOW
WILL END IN THE WESTERN MOUNTAINS.  SNOW WILL CONTINUE INy THE BIG HORN
MOUNTAINS WEST OF SHERIDAN HOWEVER THROUGH THE AFTERNOON...WITH NEW
SNOWFALL OF ONE TO THREE INCHES.

HATTEN

WYZ012-017-131830-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
1150 AM MDT SUN MAY 13 1990

A STRONG THUNDERSTORM WAS OCCURRING NEAR HAWK SPRINGS WYOMING IN THE
SOUTHEAST CORNER OF THE STATE AT 1145 AM MDT.  THIS STORM WAS SOME 20
MILES SOUTH OF TORRINGTON MOVING EAST AT 25 MILES AN HOUR.

BRIEF HEAVY RAIN AND SOME SMALL HAIL WERE REPORTED WITH THIS STORM
IN AND NEAR THE TOWN OF HAWK SPRINGS.  THIS THUNDERSTORM WILL BE INTO
THE NEBRASKA PANHANDLE SHORTLY AFTER NOON.

OTHER...WEAKER...THUNDERSTORMS WERE WIDELY SCATTERED ABOUT THE REST OF
SOUTHEAST WYOMING AT 1145 AM.  THEY WERE ALSO MOVING EAST AT 25 MILES
AN HOUR.

HATTEN

NEZ001-005-011-131930-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SCOTTSBLUFF NE
1215 PM MDT SUN MAY 13 1990

...THUNDERSTORMS HAVE MOVED INTO THE NEBRASKA PANHANDLE...

AT 1210 PM MDT A STRONG THUNDERSTORM HAD MOVED INTO WESTERN BANNER
COUNTY IN THE NEBRASKA PANHANDLE.  THIS STORM WAS 20 MILES SOUTHWEST OF
SCOTTSBLUFF NEBRASKA MOVING TO THE EAST AT 25 MILES AN HOUR.

AT 1212 PM MDT A SPOTTER 12 MILES EAST OF LA GRANGE WYOMING OR 20 MILES
SOUTHWEST OF SCOTTSBLUFF NEBRASKA REPORTED ONE QUARTER INCH (PEA) HAIL
COVERING THE GROUND COMPLETELY.  THE RAIN HAD ENDED AND ESTIMATED THE
WIND TO BE 25 MILES AN HOUR.

BRIEF HEAVY RAIN...STRONG WIND AND SMALL HAIL ARE POSSIBLE WITH THIS
STORMO AS IT MOVES EAST ACROSS SOUTHERN SCOTTS BLUFF AND BANNER COUNTIES
IN THE NEBRASKA PANHANDLE UNTIL 130 PM MDT.
KIRK

NEZ001-005-011-132030-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SCOTTSBLUFF NE
100 PM MDT SUN MAY 13 1990

...A LONE THUNDERSTORM IS MOVING EAST ACROSS THE CENTRAL NEBRASKA
PANHANDLE...

AT 100 PM MDT A VERY STRONG THUNDERSTORM HAD MOVED INTO WESTERN MORRILL
COUNTY IN THE NEBRASKA PANHANDLE.  THIS STORM WAS 10 MILES WEST OF
BRIDGEPORT OR 20 SOUTHEAST OF SCOTTSBLUFF NEBRASKA MOVING TO THE EAST
AT 30 MILES AN HOUR.

BRIEF HEAVY RAIN...STRONG WIND AND SMALL HAIL ARE POSSIBLE WITH THIS
STORM UNTIL 230 PM MDT AS IT MOVES EAST ACROSS MORRILL COUNTY IN THE
CENTRAL NEBRASKA PANHANDLE.
KIRK