Alert archive / Colorado / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 39, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this severe thunderstorm warning at Jul 26, 1990, 6:06 PM MDT for Kit Carson County, Yuma County, Colorado. It was in force for 54 min.
The area
The counties it named.
The facts
- Issued
- Jul 26, 1990, 6:06 PM MDT (00:06 UTC)
- Expired
- Jul 26, 1990, 7:00 PM MDT
- In force
- 54 min
- Issued by
- NWS Denver/Boulder, CO
- Area
- Whole counties
Counties Kit Carson County, CO, Yuma County, CO
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
The nearest sounding before it
Denver, CO (KDEN), launched 00:00Z, 0.1 hours before the alert went out and 66 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 21 J/kg
- Mixed-layer CIN
- -17 J/kg
- Mixed-layer LCL
- 3667 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- -10 m²/s²
- 0-3 km storm-relative helicity
- 24 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KDEN 270010
SVRDEN
COC063-125-270100-
BULLETIN...IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE DENVER CO
606 PM MDT THU JUL 26 1990
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM
WARNING EFFECTIVE UNTIL 700 PM MDT FOR PEOPLE IN THE
FOLLOWING COUNTIES OF EAST CENTRAL COLORADO:
NORTHERN KIT CARSON
SOUTHERN YUMA
INCLUDING THE FOLLOWING TOWNS/CITIES:
BURLINGTON..HALE..AND JOES
AT 0606 PM MDT RADAR INDICATED A SEVERE THUNDERSTORM 7 MILES SOUTH
OF JOES ... OR ABOUT 28 MILES NORTHWEST OF BURLINGTON.
THE STORM WAS MOVING TO THE EAST SOUTHEAST ABOUT 15 MPH.
IF SEVERE WEATHER APPROACHES YOUR AREA...GO TO A STURDY
SHELTER AWAY FROM CREEK BEDS AND OTHER FLOOD PRONE AREAS.
REMEMBER...A SEVERE THUNDERSTORM CAN PRODUCE LARGE DAMAGING
HAIL...DAMAGING WINDS OF OVER 60 MPH...DEADLY LIGHTNING...AND
HEAVY RAINS THAT CAN QUICKLY FLOOD A LOW LYING AREA.
INTENSE LIGHTNING IS REPORTED WITH THIS STORM. IF OUTDOORS...
STAY AWAY FROM HIGH OBJECTS. MOVE INDOORS IF POSSIBLE. WHEN
INDOORS...STAY AWAY FROM WINDOWS AND DOORS AND AVOID USING
TELEPHONES AND ELECTRICAL EQUIPMENT.
THESE STORMS CAN PRODUCE A TORNADO WITH LITTLE OR NO ADVANCE
WARNING...SO BE ON THE LOOKOUT AND BE PREPARED TO MOVE TO A PLACE
OF SAFETY IF ONE IS SPOTTED.
A TORNADO WATCH REMAINS IN EFFECT FOR NORTHEAST COLORADO UNTIL 9PM MDT.
TO REPORT SEVERE WEATHER HAVE THE NEAREST LAW ENFORCEMENT
AGENCY RELAY Y2OUR REPORT TO THE NATIONAL WEATHER SERVICE OFFICE
IN DENVER...OR CALL YOUR REPORT TO THE NATIONAL WEATHER SERVICE
AT 361-0663. DO NOT CALL THIS NUMBER FOR INFORMATION.
GCF...WSFO DENVER
LAT...LON 3924 10215 3941 10278 3967 10275 3969 10214What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
In the hours before
Special weather statement, Jul 26, 4:54 PM MDT, 1 hour 12 minutes before
COZ012>13-27000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 450PM MDT THURSDAY JULY 27 1990 ...INTENSE THUNDERSTORMS IN NORTHEASTERN COLORADO... AT 445PM MDT RADAR HAS DETECTED TWO INTENSE THUNDERSTORMS IN NORTHEAST COLORADO. ONE THUNDERSTORM WAS LOCATED 12 MILES SOUTH OF AKRON COLORADO AND THE OTHER THUNDERSTORM WAS LOCATED JUST SOUTHWEST OF THE TOWN OF COPE COLORADO OR ABOUT 65 MILES SOUTHEAST OF STERLING COLORADO. BOTH OF THE THUNDERSTORMS WERE MOVING EAST AT 15 TO 20 MPH. PEOPLE IN WASHINGTON COUNTY FROM AKRON SOUTH AS WELL AS THE NORTHWEST CORNER OF KIT CARSON COUNTY AND SOUTHWEST YUMA COUNTY SHOULD BE ALERT FOR THREATENING WEATHER AND MOVE INDOORS IF NECESSARY. HAIL...HEAVY RAIN...LIGHTNING AND STRONG GUSTY WINDS ACCOMPANY THESE THUNDERSTORMS. MOTORISTS ON U.S. HIGHWAY 36 AND OTHER ROADS IN THE AREA SHOULD USE CAUTION. HEAVY RAIN COULD CAUSE SOME FLOODING OF ROADS IN LOW LYING AREAS. END...GCF...WSFO DENVER
Special weather statement, Jul 26, 5:40 PM MDT, 26 minutes before
COZ012>13-270100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 530PM MDT THURSDAY JULY 27 1990 ...INTENSE THUNDERSTORMS IN NORTHEASTERN COLORADO... AT 530PM MDT RADAR STILL SHOWED TWO INTENSE THUNDERSTORMS IN NORTHEAST COLORADO. ONE THUNDERSTORM WAS LOCATED 21 MILES SOUTHEAST OF AKRON COLORADO. THE OTHER THUNDERSTORM WAQS MOVING OVER THE TOWN OF COPE COLORADO ABOUT 65 MILES SOUTHEAST OF STERLING COLORADO. BOTH OF THE THUNDERSTORMS WERE MOVING EAST AT 15 TO 20 MPH. PEOPLE IN EASTERN WASHINGTON COUNTY AND WESTERN YUMA COUNTY SHOULD BE ALERT FOR THREATENING WEATHER AND MOVE INDOORS IF NECESSARY. PEA SIZE HAIL WAS OBSERVED 7 MILES WEST OF COPE WHILE HEAVY RAIN WAS FALLING IN THE TOWN OF COPE. MOTORISTS IN EASTERN WASHINGTON AND WESTERN YUMA COUNTY SHOULD USE CAUTION AND BE ALERT FOR POSSIBLE FLOODING OF ROADS IN LOW LYING AREAS DUE TO HEAVY RAIN. SO FAR THESE THUNDERSTORMS HAVE NOT BECOME SEVERE...BUT THEY MAY INTENSIFY OR SPAWN NEW AND HEAVIER THUNDERSTORMS AS THEY MOVE EAST INTO YUMA COUNTY WHERE THERE IS MORE MOISTURE AVAILABLE IN THE LOWER ATMOSPHERE. THESE THUNDERSTORMS ARE JUST SOUTH OF THE TORNADO WATCH THAT IS IN EFFECT UNTIL 9PM MDT FOR NORTHEAST COLORADO. REMEMBER THE TORNADO WATCH IS FOR PHILLIPS...SEDGWICK...NORTHERN YUMA CENTRAL AND EASTERN LOGAN AND NORTHEAST WASHINGTON COUNTIES. END...GCF...WSFO DENVER
Nearby
Severe Thunderstorm Warnings in Colorado, 1990Every severe thunderstorm warning in 1990
Sources
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.