Tornado Warning 10, NWS Denver/Boulder, CO

Issued

Jun 23, 1987, 5:59 PM MDT (23:59 UTC)

Expired

Jun 23, 1987, 6:40 PM MDT

In force

41 min

Issued by

NWS Denver/Boulder, CO

Area

Whole counties

County Weld County, CO

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

000 
TTAA00 KDEN 240001
TORDEN
COC123-240040-
 
BULLETIN...EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DENVER CO
559 PM MDT TUE JUN 23 1987
 
THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO
WARNING EFFECTIVE UNTIL 640 PM  MDT FOR PEOPLE IN THE
FOLLOWING COUNTIES OF NORTHEAST COLORADO:
 
     NORTH CENTRAL WELD
 
INCLUDING THE FOLLOWING TOWNS/CITIES:
 
     NUNN
 
THE STORM IS LOCATED 21 MILES NORTHEAST OF FT COLLINS.
 
AT 558 PM MDT THE P[OLICE REPORTED A TORNADO ON THE GROUND
EAST OF HIWAY 85 BETWEEN PIERCE AND NUNN.

IN HOMES GO TO THE BASEMENT OR INTO A CLOSET OR BATHROOM.
IN SCHOOLS..HIGH RISES AND HOSPITALS GO TO AN INTERIOR
HALLWAY ON THE LOWEST FLOOR.  IF IN MOBILE HOMES OR VEHICLES..
EVACUATE THEM AND GO TO A SUBSTANTIAL SHELTER.  IF NO SHELTER
IS AVAILABLE..LIE FLAT IN THE NEAREST DITCH OR OTHER LOW SPOT.
IN ALL CASES..STAY AWAY FROM WINDOWS..DOORS AND OUTSIDE WALLS.
 
A TORNADO WATCH REMAINS IN EFFECT FOR MUCH OF[ EASTERN COLORADO
TIL 8PM MDT.

KAPLAN 
LAT..LON  4091 10470 4090 10432 4065 10442 4066 10481

In the hours before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
205 PM MDT TUE JUN 23 1987

...RAPID THUNDERSTORM DEVELOPMENT EXPECTED NORTH AND WEST DENVER METRO
   AREA...
...TORNADO WATCH IN EFFECT FOR MUCH OFEASTERN COLORADO...

A TORNADO WATCH IS NOW IN EFFECT FOR A LARGE PART OF COLORADO EAST OF
MOUNTAINS AND NORTH OF ABOUT THE ARKANSAS RIVER.

THUNDERSTORMS THAT HAVE BEGUN TO DEVELOP NEAR DENVER WILL INTENSIFY
BEFORE 3 PM. STRONGEST STORMS ARE LIKELY FROM NEAR BRIGHTON THRU THE
NORTHERN DENVER METRO AREA INTO EXTREME EASTERN JEFFERSON COUNTY. THE
STORMS WILL INTENSIFY RAPIDLY BETWEEN NOW AND 300 PM AND MAY BECOME
SEVERE.  BRIEF HEAVY RAINS ARE LIKELY WITH THE STORMS..

KAPLAN

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
542 PM MDT TUE JUN 23 1987

...STRONG STORMS CONTINUE IN CENTRAL ADAMS AND APARAHOE COUNTIES
   AND NORTHWESTERN WELD COUNTY...
...TORNADO WATCH IN EFFECT FOR MUCH OF EASTERN COLORADO...

AT 540 PM MDT STRONGEST STORMS WERE IN CENTRAL ADAMS AND ARAPAHOE
COUNTIES NEAR BYERS AND STRASBURG. MARBLE SIZE HAIL WAS REPORTED IN
STRASBURG AROUND 530 PM MDT...ALONG WITH AN ESTIMATED 1 INCDH OF RAIN
IN 15 MINUTES.  THE WELD COUNTY STORM WASS NEAR NUNN AND IS ALSO
PRODUCING SOME HAIL AND HEAVY RAIN.  BOTH STORMS ARE TRACKING TO THE
EAST.

A TORNADO WATCH CONTINUES FOR MUCH OF EASTERN COLORADO TIM 8 PM MDT.
KAPLAN

Tornado Warnings in Colorado, 1987Every tornado warning in 1987Tornadoes in 1987

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive.