Severe Thunderstorm Warning 270, NWS Denver/Boulder, CO

COZ030-032>050-300600-

SIGNIFICANT WEATHER OUTLOOK FOR NORTHEAST AND NORTH CENTRAL COLORADO
NATIONAL WEATHER SERVICE DENVER CO
1100 AM MDT THU AUG 29 1996                   ...CORRECTION FOR TYPO...

THIS OUTLOOK PERTAINS TO THE FOLLOWING COLORADO COUNTIES

ADAMS     ARAPAHOE     BOULDER   CLEAR CREEK   DENVER       DOUGLAS
ELBERT    GILPIN       GRAND     JACKSON       JEFFERSON    LARIMER
LINCOLN   LOGAN        MORGAN    PARK          PHILLIPS     SEDGWICK
SUMMIT    WASHINGTON   WELD

...CONDITIONS ALL POINT TO SEVERE WEATHER IN NORTHEAST COLORADO THIS
AFTERNOON AND EVENING...

SYNOPSIS:  A VIGOROUS UPPER LEVEL DISTURBANCE SPINNING ON SATELLITE
IMAGERY OVER CENTRAL WYOMING LATE THIS MORNING IS FORECAST TO TRACK
SOUTHEAST ACROSS NORTHEAST COLORADO LATE THIS AFTERNOON AND EVENING.
IN ADDITION...AMPLE LOW LEVEL MOISTURE...A FAVORABLE VERTICAL WIND
PROFILE...AND STRONG HEATING PRODUCING A VERY UNSTABLE ATMOSPHERE
WILL SET THE STAGE FOR WIDESPREAD SHOWERS AND THUNDERSTORMS ACROSS
THE NORTHEAST PLAINS AND MONUMENT RIDGE OF COLORADO AFTER 2 PM MDT.

COLD AIR ALOFT ASSOCIATED WITH THIS DISTURBANCE WILL SUPPORT THE DEVELOPMENT
OF THUNDERSTORMS CAPABLE OF LARGE DAMAGING HAIL.  RAPIDLY DEVELOPING STORMS
MAY ALSO PRODUCE FUNNEL CLOUDS AND TORNADOES AND LOCALLY HEAVY RAIN.

PEOPLE IN NORTHEAST COLORADO...INCLUDING THE DENVER METRO AREA...SHOULD
BE PREPARED FOR THE POSSIBILITY OF SEVERE WEATHER THIS AFTERNOON AND EVENING.
THE BEST CHANCE FOR SEVERE WEATHER WILL BE ALONG AND EAST OF A LINE FROM
LOVELAND IN SOUTHEAST LARIMER COUNTY TO WATKINS IN CENTRAL ADAMS COUNTY.
HOWEVER...AREAS WEST OF THIS LINE MAY ALSO SEE LARGE DAMAGING HAIL...
STRONG GUS|TY WINDS AND LOCALLY HEAVY RAIN.

STORM SPOTTER ACTIVATION WILL BE REQUIRED THIS AFTERNOON...POSSIBLY AS EARLY
AS 1 PM IN LARIMER AND WELD COUNTIES.

BAKER...WSFO DENVER

COZ030-032>050-300600-

SIGNIFICANT WEATHER OUTLOOK FOR NORTHEAST AND NORTH CENTRAL COLORADO
NATIONAL WEATHER SERVICE DENVER CO
145 PM MDT THU AUG 29 1996                   ...UPDATE...

THIS OUTLOOK PERTAINS TO THE FOLLOWING COLORADO COUNTIES

ADAMS     ARAPAHOE     BOULDER   CLEAR CREEK   DENVER       DOUGLAS
ELBERT    GILPIN       GRAND     JACKSON       JEFFERSON    LARIMER
LINCOLN   LOGAN        MORGAN    PARK          PHILLIPS     SEDGWICK
SUMMIT    WASHINGTON   WELD

...STRONG WIND CONVERGENCE BOUNDARY PRIMED FOR SEVERE THUNDERSTORM
DEVELOPMENT NEXT 1 TO 2 HOURS...

SYNOPSIS:  A WELL DEVELOPED WIND CONVERGENCE BOUNDARY HAS FORMED
EAST OF THE DENVER METRO AREA EARLY THIS AFTERNOON.  THIS BOUNDARY
EXTENDS NORTHEAST FROM CASTLE ROCK IN CENTRAL DOUGLAS COUNTY TO THE
JUST EAST OF GREELEY IN EASTERN WELD COUNTY.  ALONG AND EAST OF THIS
BOUNDARY...THE ATMOSPHERE WAS VERY MOIST AND UNSTABLE CONDITIONS.
CLOUDS WERE ALREADY DEVELOPING RAPIDLY ALONG THIS BOUNDARY...WITH
THUNDERSTORM DEVELOPMENT EXPECTED BY 2:30 PM.

LATER THIS AFTERNOON THUNDERSTORM DEVELOPMENT IS EXPECTED TO BECOME
MORE WIDESPREAD WITH THE APPROACH OF A VIGOROUS UPPER LEVEL WEATHER
DISTURBANCE CURRENTLY MOVING SOUTHEAST ACROSS WYOMING.
THUNDERSTORMS LATER THIS AFTERNOON AND EARLY THIS EVENING WILL BE
CAPABLE OF LARGE DAMAGING HAIL...LOCALLY HEAVY RAIN...FUNNEL CLOUDS
AND TORNADOES.

PEOPLE IN NORTHEAST COLORADO...INCLUDING THE DENVER METRO AREA...
SHOULD BE PREPARED FOR THE POSSIBILITY OF SEVERE WEATHER LATER THIS
AFTERNOON AND EVENING.  THE BEST CHANCE FOR SEVERE WEATHER WILL BE
ALONG AND EAST OF A LINE FROM GREELEY IN WELD COUNTY TO WATKINS IN
CENTRAL ADAMS COUNTY...TO FRANKTOWN IN EASTERN DOUGLAS COUNTY.
HOWEVER...AREAS WEST OF THIS LINE MAY ALSO SEE LARGE DAMAGING HAIL...
STRONG GUSTY WINDS AND LOCALLY HEAVY RAIN.

STORM SPOTTER ACTIVATION WILL BE REQUIRED THIS AFTERNOON.

BAKER...WSFO DENVER

COZ036-041-292050-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
230 PM MDT THU AUG 29 1996

...DOPPLER RADAR DETECTING SMALL HAIL FALLING FROM THUNDERSTORMS
OVER EXTREME SOUTHWEST DOUGLAS COUNTY...

AT 225 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
THUNDERSTORM 4 MILES EAST OF WESTCREEK...OR ABOUT 25 MILES NORTHWEST
OF COLORADO SPRINGS IN EXTREME SOUTHWEST DOUGLAS COUNTY.

DOPPLER RADAR WAS DETECTING SMALL HAIL WITH THIS STORM.

THE STORM WAS MOVING SOUTHEAST AT 30 MILES PER HOUR AND IS EXPECTED
TO MOVE INTO NORTHERN EL PASO COUNTY BY 245 PM MDT.

PERSONS IN OR NEAR DECKERS...DEVIL'S HEAD...AND LARKSPUR SHOULD BE
ON THE LOOKOUT FOR THREATENING WEAZTHER AND MOVE TO A PLACE OF SAFETY
IF BAD WEATHER APPROACHES.

A TORNADO WATCH REMAINS IN EFFECT FOR MOST OF EASTERN COLORADO UNTIL
800 PM MDT.

BAKER

COZ041-292130-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
310 PM MDT THU AUG 29 1996

...HAIL AND LOCALLY HEAVY RAIN DETECTED ON RADAR FROM A THUNDERSTORM
IN WESTERN ELBERT COUNTY...

AT 305 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
THUNDERSTORM 4 MILES NORTH OF KIOWA...OR ABOUT 34 MILES SOUTHEAST OF
DENVER.

DOPPLER RADAR WAS DETECTING SMALL HAIL AND LOCALLY HEAVY RAIN WITH
THIS THUNDERSTORM.  RADAR HAS ALSO INDICATED SOME STRENGTHENING OF
THIS STORM IN THE PAST 10 MINUTES...A THEREFORE MAY BECOME SEVERE AS
IT MOVES ACROSS WEST CENTRAL ELBERT COUNTY.

MOVEMENT OF THIS STORM WAS TO THE SOUTHEAST AT 15 MILES PER HOUR.

PERSONS IN OR NEAR ELIZABETH AND KIOWA SHOULD BE ON THE LOOKOUT FOR
THREATENING WEATHER AND MOVE TO A PLACE OF SAFETY IF BAD WEATHER
APPROACHES.

A TORNADO WATCH REMAINS IN EFFECT FOR MOST OF EASTERN COLORADO UNTIL
800 PM MDT.

BAKER...WSFO DENVER

COZ038-040-042>045-049-292300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
345 PM MDT THU AUG 29 1996

...SEVERE WEATHER POSSIBLE IN THE NEXT HOUR...

THUNDERSTORMS WERE DEVELOPING RAPIDLY ACROSS WELD...MORGAN...EASTERN
ADAMS AND EASTERN ARAPAHOE COUNTIES AS OF 340 PM MDT.  STORMS WERE
FORMING ALONG A WELL DEFINED WIND CONVERGENCE BOUNDARY EXTENDING
NORTH TO SOUTH ACROSS THE AREA.

AT 340 PM MDT THE STRONGEST THUNDERSTORM INDICATED ON NATIONAL
WEATHER SERVICE DOPPLER RADAR 4 MILES NORTHWEST OF HARDIN...OR ABOUT
15 MILES EAST OF GREELEY.

MOVEMENT OF STORMS IN WELD AND MORGAN COUNTIES WAS TO THE WEST AT 20
MPH...AND THOSE IN MORGAN...ADAMS AND ARAPAHOE COUNTIES TO THE
NORTHWEST AT 15 MPH.

PEOPLE IN THE ABOVE MENTIONED COUNTIES SHOULD BE ON THE LOOKOUT FOR
THREATENING WEATHER AND MOVE TO A PLACE OF SAFETY IF BAD WEATHER
APPROACHES.  STORMS MAY BECOME SEVERE WITH OR NO WARNING.  LARGE
DAMAGING HAIL...HEAVY RAIN AND TORNADOES ARE POSSIBLE.

A TORNADO WATCH REMAINS IN EFFECT FOR MOST OF EASTERN COLORADO UNTIL
800 PM MDT.

BAKER...WSFO DENVER

COZ038-039-042>045-048-049-300000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
438 PM MDT THU AUG 29 1996

...THREATENING WEATHER APPROACHING NORTHEAST COLORADO FROM SOUTHEAST
WYOMING...

A LINE OF THUNDERSTORMS MOVING THROUGH SOUTHEAST WYOMING WERE
ASSOCIATED WITH A STRONG UPPER LEVEL WEATHER DISTURBANCE WHICH IS
FORECAST TO MOVE ACROSS NORTHEAST COLORADO THIS EVENING.

AS THIS DISTURBANCE MOVES THROUGH NORTHEAST COLORADO BETWEEN 5 AND 8
PM MDT THIS EVENING...NEW THUNDERSTORMS ARE EXPECTED TO DEVELOP...
SOME POSSIBLY SEVERE.  LARGE DAMAGING HAIL...LOCALLY HEAVY RAIN AND
TORNADOES WILL BE POSSIBLE WITH THESE STORMS.

PEOPLE IN NORTHEAST COLORADO SHOULD REMAIN ALERT FOR THREATENING
WEATHER THIS EVENING AND MOVE TO A PLACE OF SAFETY IF SEVERE WEATHER
APPROACHES.  STORMS MAY BECOME SEVERE WITH OR NO WARNING.  LARGE
DAMAGING HAIL...HEAVY RAIN AND TORNADOES ARE POSSIBLE.

A TORNADO WATCH REMAINS IN EFFECdT FOR MOST OF EASTERN COLORADO UNTIL
800 PM MDT.

BAKER...WSFO DENVER