Alert archive / Colorado / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 2, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this severe thunderstorm warning at May 8, 1990, 5:43 PM MDT for Kit Carson County, Yuma County, Colorado. It was in force for 60 min.
The area
The counties it named.
The facts
- Issued
- May 8, 1990, 5:43 PM MDT (23:43 UTC)
- Expired
- May 8, 1990, 6:43 PM MDT
- In force
- 60 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 12:00Z, 11.7 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 789 m above ground
- 0-6 km bulk shear
- 60 kt
- 0-1 km storm-relative helicity
- 218 m²/s²
- 0-3 km storm-relative helicity
- 479 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 082348
SVRDEN
COC073-063-121-125-090043-
BULLETIN...IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE DENVER CO
543 PM MDT TUE MAY 08 1990
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM
WARNING EFFECTIVE UNTIL 643 PM MDT FOR PEOPLE IN THE
FOLLOWING COUNTIES OF EAST CENTRAL COLORADO:
NORTHEASTERN LINCOLN
NORTHWESTERN KIT CARSON
SOUTHEASTERN WASHINGTON
SOUTHWESTERN YUMA
INCLUDING THE FOLLOWING TOWNS/CITIES:
COPE AND JOES
THE STORM WAS LOCATED 9 MILES NORTH OF COPE..WHICH IS 47 MILES
NORTHWEST OF BURLINGTON.
AT 543 PM MDT RADAR INDICATED A SEVERE THUNDERSTORM 10 MILES NORTHEAST
OF ANTON COLORADO...OR ABOUT 25 MILES SOUTHEAST OF AKRON... MOVING
TOWARD THE EAST NORTHEAST AT 30 MPH. THIS STORM PROBABLY CONTAINS
LARGE HAIL AND MAY PRODUCE STRONG GUSTY WINDS.
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.
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 A LARGE AREA OF EASTERN COLORADO
UNTIL 9 PM MDT.
TO REPORT SEVERE WEATHER HAVE THE NEAREST LAW ENFORCEMENT
AGENCY RELAY YOUR 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.
MARKKANEN
LAT..LON 3943 10258 3938 10341 3989 10302 3994 10253What 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, May 8, 4:38 PM MDT, 1 hour 5 minutes before
COZALL-082200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 430 PM MDT THU MAY 8 1990 ...SNOW AND BLOWING SNOW ADVISORY ISSUED FOR TONIGHT IN THE NORTHERN AND CENTRAL MOUNTAINS GENERALLY TO THE NORTH OF ASPEN... A VIGOROUS UPPER LEVEL STORM SYSTEM CURRENTLY OVER NORTHERN UTAH WILL WHIP ACROSS NORTHERN COLORADO TONIGHT AND EARLY WEDNESDAY. THE SNOW LEVEL WILL FALL FROM AROUND 9000 FEET THIS EVENING TO AROUND 5000 FEET BY LATER TONIGHT. THIS WILL BRING SNOW AND BLOWING SNOW THROUGHOUT THE NORTHERN AND CENTRAL MOUNTAINS OVERNIGHT...AS WELL AS TO THE PLAINS OF NORTHEASTERN COLORADO BY LATER TONIGHT. ACCUMULATIONS OF 3 TO 6 INCHES ARE EXPECTED IN THE NORTHERN AND CENTRAL MOUNTAINS...WITH UP TO 12 INCHES IN THE FAVORED WEST FACING SLOPES. STRONG WINDS WILL CAUSE AREAS OF BLOWING AND DRIFTING SNOW. IN THE FOOTHILLS OF THE NORTHERN FRONT RANGE ABOVE 6000 FEET 1 TO 4 INCHES OF SNOW IS POSSIBLE BY LATER TONIGHT. A LIGHT SNOW ACCUMULATION IS ALSO POSSIBLE OVER THE NORTHEAST PLAINS AS WELL AS THE CITY OF DENVER. AN ACCUMULATION OF SNOW THIS LATE IN THE SEASON COULD PROVE DAMAGING TO TREES WITH NEW SPRING GROWTH. OTHER TENDER VEGETATION...AS WELL AS WEAK O[R NEWBORN LIVESTOCK...MAY NEED PROTECTION FROM THE WET AND COLD. PERSONS TRAVELING THROUGHOUT NORTHERN AND NORTHEAST COLORADO TONIGHT... ESPECIALLY THROUGH THE MOUNTAINS...SHOULD BE PREPARED FOR WINTER-LIKE CONDITIONS. MCQUEEN
Special weather statement, May 8, 5:02 PM MDT, 41 minutes before
COZALL-082200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 450 PM MDT TUE MAY 8 1990 ...TORNADO WATCH UNTIL 900 PM MDT FOR SOUTHEAST DOUGLAS...SOUTHEAST WASHINGTON...AND SOUTHERN YUMA COUNTIES... AT 450 PM MDT RADAR WAS SHOWING AN AREA OF SCATTERED THUNDERSTORMS OVER PARTS OF MORGAN...WASHINGTON...AND EXTREME EASTERN ADAMS COUNTIES. A VERY STRONG THUNDERSTORM WAS LOCATED ABOUT 5 MILES SOUTHEAT OF AKRON. OTHER STRONG THUNDERSTORMS WERE SOUTH OF AKRON IN SOUTHERN WASHINGTON COUNTY. THUNDERSTORMS WERE MOVING TO THE EAST AT ABOUT 35 MPH. THE THUNDERSTORMS OVER SOUTHERN WACHINGTON COUNTY ARE SHOWING THE MOST RECENT SIGNS OF INTENSIFICATION AND WOULD BE THE MOST LIKELY TO PRODUCE SEVERE WEATHER. THUNDERSTORMS THIS EVENING THROUGH EAST-CENTRAL COLORADO MAY CONTAIN LARGE HAIL AND DAMAGING WINDS. THERE IS ALSO A THREAT OF TORNADOES. MCQUEEN
The office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 8, 5:43 PM MDT | Severe Thunderstorm Warning | BOU | Lincoln, Washington | 60 min |
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.