Alert archive / Colorado / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 66, NWS Denver/Boulder, CO

June 22, 1995Weld County, Colorado

NWS Denver/Boulder, CO issued this severe thunderstorm warning at Jun 22, 1995, 7:17 PM MDT for Weld County, Colorado. It was in force for 43 min.

The area

The counties it named.

The facts

Issued: Jun 22, 1995, 7:17 PM MDT (01:17 UTC)
Expired: Jun 22, 1995, 8:00 PM MDT
In force: 43 min
Issued by: NWS Denver/Boulder, CO
Area: Whole counties

County Weld County, CO

The nearest sounding before it

Denver, CO (KDNR), launched 00:00Z, 1.3 hours before the alert went out and 125 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 734 J/kg
Mixed-layer CIN: -79 J/kg
Mixed-layer LCL: 2151 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: 37 m²/s²
0-3 km storm-relative helicity: 98 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.5

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KDEN 230119 RRA
SVRDEN
COC123-230200-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE DENVER CO
717 PM MDT THU JUN 22 1995

THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A SEVERE
THUNDERSTORM WARNING EFFECTIVE UNTIL 800 PM MDT FOR PEOPLE IN
THE FOLLOWING COUNTIES

IN NORTHEASTERN COLORADO
     WEST CENTRAL WELD

INCLUDING THE FOLLOWING LOCATIONS
     AULT...EATON...GALETON...GILL...GREELEY...LUCERNE...NUNN...
     PIERCE...PURCELL...SEVERANCE AND WINDSOR

AT 717 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
A SEVERE THUNDERSTORM 3 MILES EAST OF SEVERANCE ...OR ABOUT 8
MILES NORTHWEST OF GREELEY.

THE STORM WAS BUILDING RAPIDLY AND MOVING EAST AT 5MPH.  

TO REPORT SEVERE WEATHER HAVE THE NEAREST LAW ENFORCEMENT
AGENCY RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
FORECAST OFFICE IN DENVER.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR NORTH CENTRAL
AND EASTERN COLORADO UNTIL 1100PM MDT.


LAT...LON 4039 10448 4037 10489 4081 10491 4081 10458
RTG

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, Jun 22, 3:59 PM MDT, 3 hours 18 minutes before

COZ034>035-038>039-042>043-222300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
359 PM MDT THU JUN 22 1995

AT 355 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
A STRONG THUNDERSTORM ON THE WYOMING/COLORADO STATE LINE 7 MILES NORTH
OF ROCKPORT...OR ABOUT 32 MILES NORTHEAST OF FORT COLLINS.  OTHER
THUNDERSTORMS WERE DEVELOPING IN NORTHWEST WELD COUNTY...AND
EASTERN LARIMER COUNTY.  ALL THE STORMS HAVE BEEN MOVING TO THE
EAST NORTHEAST AT 10 MPH.

THESE STORMS ARE ASSOCIATED WITH A WEAK WEATHER DISTURBANCE IN
THE UPPER ATMOSPHERE.  EXPECT STORMS TO CONTINUE DEVELOPING OVER
THE NORTHERN FRONT RANGE AND MOVING NORTHEAST INTO WELD AND ADAMS
COUNTIES THROUGH 530PM...AND EASTWARD AFTER 530PM.  SOME STORMS THIS
EVENING WILL BECOME SEVERE.

RTG
LAT...LON 3994 10512 3998 10567 4099 10495 4101 10461

Special weather statement, Jun 22, 4:01 PM MDT, 3 hours 16 minutes before

COZ034>035-038>039-042>043-222300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
359 PM MDT THU JUN 22 1995

AT 355 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
A STRONG THUNDERSTORM ON THE WYOMING/COLORADO STATE LINE 7 MILES NORTH
OF ROCKPORT...OR ABOUT 32 MILES NORTHEAST OF FORT COLLINS.  OTHER
THUNDERSTORMS WERE DEVELOPING IN NORTHWEST WELD COUNTY...AND
EASTERN LARIMER COUNTY.  ALL THE STORMS HAVE BEEN MOVING TO THE
EAST NORTHEAST AT 10 MPH.

THESE STORMS ARE ASSOCIATED WITH A WEAK WEATHER DISTURBANCE IN
THE UPPER ATMOSPHERE.  EXPECT STORMS TO CONTINUE DEVELOPING OVER
THE NORTHERN FRONT RANGE AND MOVING NORTHEAST INTO WELD AND ADAMS
COUNTIES THROUGH 530PM...AND EASTWARD AFTER 530PM.  SOME STORMS THIS
EVENING WILL BECOME SEVERE.

RTG
LAT...LON 3994 10512 3998 10567 4099 10495 4101 10461

The office that day

Everything else NWS Denver/Boulder, CO issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 22, 6:27 PM MDT	Severe Thunderstorm Warning	BOU	Adams, Arapahoe, Denver	33 min
Jun 22, 6:27 PM MDT	Severe Thunderstorm Warning	BOU	Weld	38 min
Jun 22, 6:35 PM MDT	Severe Thunderstorm Warning	BOU	Sedgwick	40 min
Jun 22, 7:52 PM MDT	Severe Thunderstorm Warning	BOU	Larimer, Weld	53 min
Jun 23, 2:56 PM MDT	Severe Thunderstorm Warning	BOU	Logan, Washington	34 min
Jun 23, 3:26 PM MDT	Severe Thunderstorm Warning	BOU	Washington	24 min
Jun 23, 3:47 PM MDT	Severe Thunderstorm Warning	BOU	Washington	28 min

Nearby

Severe Thunderstorm Warnings in Colorado, 1995 Every severe thunderstorm warning in 1995

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.