Severe Thunderstorm Warning 9, NWS Denver/Boulder, CO

COZ011-310235-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
724 PM MDT TUE MAY 29 1990

...OMINOUS THUNDERSTORM IN JEFFERSON COUNTY...

AT 715 PM MDT RADAR INDICATED A THUNDERSTORM JUST NORTH OF THE TOWN OF
CONIFER IN THE FOOTHILLS OF WEST CENTRAL JEFFERSON COUNTY.  THE STORM
WAS MOVING TO THE NORTHEAST AT ABOUT 15 MPH.

THE THUNDERSTORM WAS ROTATING AND LOTS OF CLOUD FRAGMENTS WERE SEEN
UNDER THE STORM.  AS OF 715 PM NO FUNNEL CLOUDS HAD BEEN SIGHTED BUT
THE STORM BEARS WATCHING.

PERSONS IN WESTERN AND CENTRAL JEFFERSON COUNTY...AROUND THE TOWNS OF
EVERGREEN...IDLEDALE...MORRISON AND KITTREDGE SHOULD REMAIN ALERT TO
CHANGING WEATHER CONDITIONS OVER THE NEXT HOUR OR SO AND MOVE TO A PLACE
OF SAFETY IF THREATENING WEATHER APPROACHES.

THALER

COZ011-310235-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
800 PM MDT TUE MAY 29 1990

...OMINOUS THUNDERSTORMS IN SOUTHWEST DENVER...

AT 750 PM MDT THUNDERSTORMS CONTINUED OVER EASTERN JEFFERSON COUNTY
AND WEST AND SOUTHWEST DENVER COUNTY.

DOPPLER RADAR SHOWED SOME OF THE THUNDERSTORMS WERE ROTATING IN AND
AROUND CHATFIELD RESERVOIR AND THE TOWNS OF SHERIDAN AND BOW MAR.

HEAVY RAIN IS LIKELY WITH THESE THUNDERSTORMS AS THEY MOVE OVER THE
SOUTHWEST SECTIONS OF THE METRO AREA DURING THE NEXT HOUR.  SOME HAIL
AND GUSTY WINDS MAY ALSO OCCUR.

NO FUNNEL CLOUDS HAVE YET BEEN REPORTED BUT SOME THREATENING CLOUDS HAVE
BEEN OBSERVED.

PERSONS IN THE SOUTHWEST METROM AREA SHOULD KEEP AN EYE ON THE SKY AND
MOVE TO SAFE SHELTER IF THREATENING WEATHER APPROACHES.

THALER

COZ011-310345-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
845 PM MDT TUE MAY 29 1990

...THUNDERSTORMS LEAVING DENVER AREA...

THE BACK EDGE OF A LINE OF THUNDERSTORMS EXTENDS FROM NEAR GOLDEN
IN CENTRAL JEFFERSON COUNTY TO AROUND BUCKLEY FIELD IN AURORA.
THE LINE IS MOVING TO THE NORTHEAST AT ABOUT 20 MPH.

ALTHOUGH SOME THREATENING CLOUDS OCCURRED WITH THESE STORMS...NO
CONFIRMED FUNNEL CLOUDS WERE REPORTED.  THE MAIN STORY WITH THE
STORMS HAS BEEN RAIN.

AS THIS BATCH OF STORMS LEAVES DENVER...RADAR INDICATED ANOTHER ROUND
OF SHOWERS AND THUNDERSTORMS MOVING ACROSS THE MOUNTAINS AND WILL
ENCROACH ON THE WEST AND SOUTHWEST SECTIONS OF THE DENVER AREA BY
9 PM...SPREADING NORTHEAST ACROSS THE REMAINDER OF THE METRO AREA
THEREAFTER.

THALER

COZ011-310500-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
925 PM MDT TUE MAY 29 1990

...LINE OF THUNDERSTORMS WITH HEAVY RAIN ALONG THE FRONT RANGE MOVING
   TO THE EAST...

AT 915 PM MDT RADAR WAS INDICATING A NEW LINE OF THUNDERSTORMS...SOME
WITH HEAVY RAIN...ALONG THE NORTHERN FRONT RANGE.  THESE THUNDERSTORMS
EXTENDED FROM THE WYOMING BORDER SOUTHWARD ALONG THE FRONT RANGE TO NEAR
THE COLORADO SPRINGS AREA.  THE STRONGEST THUNDERSTORMS WITH THE
HEAVIEST RAINFALL WERE IN SOUTHERN AND CENTRAL JEFFERSON COUNTY.  THIS
PORTION OF THE LINE OF THUNDERSTORMS WAS MOVING DIRECTLY INTO THE DENVER
METROPOLITAN AREA.

THE LINE OF THUNDERSTORMS WAS MOVING TO THE EAST AT ABOUT 20 MPH.

A WEATHER SPOTTER FROM BUFFALO CREEK IN SOUTHERN JEFFERSON COUNTY
REPORTED 1/2 INCH OF RAIN AND PEA SIZED HAIL DURING ABOUT A 7 MINUTE
PERIOD AROUND 910 PM MDT.

ALTHOUGH SOME THREATENING LOOKING CLOUDS MAY BE SIGHTED WITH THESE
STORMS...HEAVY RAIN WILL LIKELY BE THE MAIN STORY AS THE THUNDERSTORMS
PASS THROUGH THE FRONT RANGE DURING THE NEXT HOUR OR SO.

MCQUEEN

COZ011-310500-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
950 PM MDT WED MAY 30 1990

...STRONG THUNDERSTORMS IN ALONG FRONT RANGE...

A LINE OF STRONG THUNDERSTORMS HAS MOVED INTO THE DENVER AREA AT 945 PM.
MANY REPORTS OF STRONG GUSTY WINDS IN THE LITTLETON AND AURORA AREAS
HAVE BEEN RECEIVED AT THE NATIONAL WEATHER SERVICE WITHIN THE LAST HALF
HOUR.

ADDITIONALLY...PEA TO MARBLE SIZE HAIL AND VERY HEAVY RAINS HAVE
OCCURRED WITH THESE STORMS AS FAR NORTH AS BROOMFIELD.  UP TO ONE
HALF INCH OF RAIN HAS FALLEN IN 20 MINUTES IN THE FOOTHILLS WEST OF
DENVER.

THE LINE CONTINUES TO MOVE EAST AT ABOUT 20 MPH.  LOTS OF LIGHTNING IS
ACCOMPANYING THIS STORM SO STAY INDOORS:.

PERSONS THROUGHOUT THE METRO AREA SHOULD BE PREPARED FOR VERY HEAVY
RAIN...HAIL...STRONG GUSTY WINDS AND DEADLY LIGHTNING.  TAKE COVER IF
THEATENING WEATHER APPROACHES.

THALER