Alert archive / Colorado / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 87, NWS Goodland, KS

July 11, 1990Lincoln County, Colorado

NWS Goodland, KS issued this severe thunderstorm warning at Jul 11, 1990, 4:19 PM MDT for Lincoln County, Colorado. It was in force for 56 min.

The area

The counties it named.

The facts

Issued
Jul 11, 1990, 4:19 PM MDT (22:19 UTC)
Expired
Jul 11, 1990, 5:15 PM MDT
In force
56 min
Issued by
NWS Goodland, KS
Area
Whole counties

County Lincoln 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, 10.3 hours before the alert went out and 101 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.

Skew-T log-pSkew-T log-p diagram, Denver, CO at 12:00Z on 1990-07-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 250 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Denver, CO at 12:00Z on 1990-07-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 18 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
250 J/kg
Mixed-layer CIN
-103 J/kg
Mixed-layer LCL
1424 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
18 m²/s²
0-3 km storm-relative helicity
-4 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KCOS 112219
SVRCOS
COC073-112315-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING 
NATIONAL WEATHER SERVICE COLORADO SPRINGS CO
419 PM MDT WED JUL 11 1990

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 515 PM MDT FOR PEOPLE IN THE FOLLOWING 
COUNTY

   IN THE EAST CENTRAL PART OF COLORADO
      CENTRAL SOUTH LINCOLN

STRONG THUNDERSTORMS ARE LOCATED ACROSS CENTRAL LINCOLN COUNTY
COLORADO MOVING TO THE SOUTH AT ABOUT 20 MPH.  THE STRONGEST
STORM WAS REPORTED 8 MILES SOUTHEAST OF THE TOWN OF LIMON AT
415 PM MDT.

THESE STORMS CAN AND OCCASIONALLY DO 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.

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
THE NEAREST DITCH...GULLY OR OTHER LOW SPOT OR SUBSTANTIAL SHELTER.

IF SEVERE WEATHER APPROACHES YOUR AREA...GO TO A STURDY SHELTER AWAY
FROM CREEK BEDS AND OTHER LOW AREAS PRONE TO FLOODING.  REMEMBER...
A SEVERE THUNDERSTORM CAN PRODUCE LARGE HAIL...DAMAGING WIND...FREQUENT
LIGHTNING AND HEAVY RAIN THAT CAN QUICKLY FLOOD LOW LYING AREAS.

TO REPORT SEVERE WEATHER HAVE THE NEAREST LAW ENFORCEMENT AGENCY
RELAY YOUR REPORTS TO THE LOCAL NATIONAL WEATHER SERVICE OFFICE.

 HUBER

What 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 11, 3:46 PM MDT, 33 minutes before
KSZ002-005-112240-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GOODLAND KS
445 PM CDT TUE JUL 11 1990

AT 440 PM CDT THUNDERSTORMS WITH SOME ISOLATED HEAVY RAINS WERE OVER
WEST CENTRAL KANSAS.   THE STORMS WERE 50 MILES SOUTHEAST OF GOODLAND
KANSAS NEAR RUSSELL SPRINGS AND 40 MILES WEST OF HAYS KANSAS
NEAR THE CEDAR BUFFS LAKE.

THE STORMS WERE MOVING SOUTH SOUTHEAST AT AROUND 20 MPH.

IT THESE CONTINUE THIER MOVEMENT THEY SHOULD MOVE TO ABOUT SCOTT CITY
NESS CITY LINE BY ABOUT 545 PM CDT THIS EVENING.

BOYLE
Special weather statement, Jul 11, 4:16 PM MDT, 3 minutes before
KSZ001-002-005-112210-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GOODLAND KS
515 PM CDT TUE JUL 11 1990

...SEVERE THUNDERSTORM WATCH #616 IS IN EFFECT FOR WALLACE..GREELEY
AND WICHITA COUNTIES IN WEST CENTRAL KANSAS UNTIL 10 PM CDT...

AT 510 PM CDT THUNDERSTORMS WITH SOME ISOLATED HEAVY RAINS WERE OVER
WEST CENTRAL KANSAS.   THE STORMS WERE 50 TO 60 MILES NORTHWEST..NORTH
AND NORTHEAST OF GARDEN CITY KANSAS.

ONE STORM 10 MILES SOUTHEAST OF TRIBUNE COULD HAVE SOME SMALL HAIL.
THE OTHER STORMS WERE NORTH OF SCOTT CITY AND NESS CITY.  ALL THE
STORMS WERE MOVING SOUTH TO SOUTHEAST AT 20 MPH.

RESIDENTS OF SCOTT CITY AND NESS CITY CAN EXPECTED THUNDERSTORMS IN
THEIR VICINITIES UNTIL AROUND 545 PM CDT THIS EVENING.
BOYLE

The office that day

Everything else NWS Goodland, KS issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 11, 1:57 PM MDTSevere Thunderstorm WarningGLDKit Carson63 min
Jul 11, 3:14 PM MDTSevere Thunderstorm WarningGLDEl Paso61 min
Jul 11, 3:14 PM MDTSevere Thunderstorm WarningGLDElbert61 min
Jul 11, 4:31 PM MDTSevere Thunderstorm WarningGLDEl Paso59 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.