Alert archive / Colorado / Severe Thunderstorm Warnings in 1992
Severe Thunderstorm Warning 91, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this severe thunderstorm warning at Jul 17, 1992, 9:30 PM MDT for Morgan County, Weld County, Colorado. It was in force for 25 min.
The area
The counties it named.
The facts
- Issued
- Jul 17, 1992, 9:30 PM MDT (03:30 UTC)
- Expired
- Jul 17, 1992, 9:55 PM MDT
- In force
- 25 min
- Issued by
- NWS Denver/Boulder, CO
- Area
- Whole counties
Counties Morgan County, CO, Weld County, CO
The nearest sounding before it
Denver, CO (KDEN), launched 00:00Z, 3.5 hours before the alert went out and 95 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
- 712 J/kg
- Mixed-layer CIN
- -58 J/kg
- Mixed-layer LCL
- 1735 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 35 m²/s²
- 0-3 km storm-relative helicity
- 110 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.9
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KDEN 180331
SVRDEN
COC087-123-180415-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE DENVER CO
930 PM MDT FRI JUL 17 1992
THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A SEVERE
THUNDERSTORM WARNING EFFECTIVE UNTIL 1015 PM MDT FOR PEOPLE IN
THE FOLLOWING COUNTIES
IN NORTHEASTERN COLORADO
SOUTHWESTERN MORGAN AND SOUTH CENTRAL WELD
INCLUDING THE FOLLOWING LOCATIONS
ADENA...GOODRICH...HOYT...JACKSON RESERVOIR...ORCHARD AND
WIGGINS
AT 928 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
A SEVERE THUNDERSTORM OVER ORCHARD...OR ABOUT 31 MILES EAST OF
GREELEY.
THE STORM WAS MOVING WAS MOVING TOWARD THE SOUTH SOUTHEAST AT 25
MPH.
IF SEVERE WEATHER APPROACHES YOUR AREA...GO INSIDE A STURDY
SHELTER AWAY FROM CREEK BEDS AND OTHER FLOOD-PRONE AREAS.
REMEMBER...A SEVERE THUNDERSTORM CAN PRODUCE LARGE DAMAGING
HAIL...DAMAGING WINDS OVER 60 MPH...DEADLY LIGHTNING...AND VERY
HEAVY RAIN.
TO REPORT SEVERE WEATHER HAVE THE NEAREST LAW ENFORCEMENT
AGENCY RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
FORECAST OFFICE IN DENVER.
HOLZINGER
LAT...LON 4002 10389 4002 10416 4038 10422 4039 10403What 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 17, 4:06 PM MDT, 5 hours 24 minutes before
COZ011-172245- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 405 PM MDT FRI JUL 17 1992 ...STRONG THUNDERSTORM WITH HAIL ALONG THE JEFFERSON-DOUGLAS COUNTY LINE... AT 257 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM PRODUCING HEAVY RAIN AND HAIL ALONG THE JEFFERSON-DOUGLAS COUNTY LINE NEAR THE TOWN OF KASSLER AND CHATFIELD RESEVOIR...OR ABOUT 20 MILES SOUTHWEST OF DENVER. A SECOND AREA OF STRONG THUNDERSTORMS WAS LOCATED IN EXTREME SOUTHERN JEFFERSON AND SOUTHWEST DOUGLAS COUNTIES NEAR THE TOWNS OF DECKERS...WESTCREEK AND CHEESMAN LAKE. ALL THESE STORMS ARE MOVING EAST SOUTHEAST AROUND 10 MILES AN HOUR. AT 354 PM A SPOTTER AT CHEESEMAN DAM REPORTED PEA TO MARBLE SIZE HAIL COVERING THE GROUND. A REPORT FROM STRONTIA SPRINGS INDICATED THAT 1/2 INCH OF RAIN FELL WITH PEA HAIL IN 20 MINUTES. THE THUNDERSTORMS CONTINUE TO BE CAPABLE OF PRODUCING HAIL...BRIEF HEAVY RAIN AND FREQUENT INTENSE LIGHTNING. IF YOU ARE IN THE VICINTY OF THESE STORMS...BE PREPARED TO MOVE TO A PLACE OF SHELTER IMMEDIATELY. WOLF
Special weather statement, Jul 17, 7:24 PM MDT, 2 hours 6 minutes before
COZ012-013-180200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 725 PM MDT FRI JUL 17 1992 ...STRONG THUNDERSTORMS OVER THE NORTHEAST PLAINS... AT 720 PM MDT NATIONAL WEATHER SERVICE RADAR INDICATED TWO STRONG THUNDERSTORMS WITH HEAVY RAIN AND POSSIBLE HAIL IN YUMA COUNTY. ONE STORM WAS 5 MILES NORTH-NORTHEAST OF WRAY AND THE OTHER 5 MILES SOUTH OF WRAY. THESE STORMS WERE MOVING TO THE EAST-SOUTHEAST AT ABOUT 20 MPH. ANOTHER STRONG THUNDERSTORM WAS LOCATED IN NORTHERN WELD COUNTY APPROXIMATELY 25 MILES EAST-NORTHEAST OF THE TOWN OF NUNN. HEAVY RAIN AND HAIL IS ALSO POSSIBLE WITH THIS STORM WHICH WAS MOVING TO THE SOUTHEAST ABOUT 20 MPH. IF YOU ARE IN THE VICINT0Y OF THESE STORMS...BE PREPARED TO MOVE TO A PLACE OF SHELTER. SZOKE/MCQUEEN
Special weather statement, Jul 17, 8:15 PM MDT, 1 hour 15 minutes before
COZ012-180240- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 815 PM MDT FRI JUL 17 1992 ...STRONG THUNDERSTORMS IN NORTHERN WELD COUNTY... AT 815 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED SEVERAL STRONG THUNDERSTORMS IN NORTHERN WELD COUNTY. THE STRONGEST STORM WAS LOCATED JUST NORTH OF THE TOWN OF BRIGGSDALE AND WAS MOVING TO THE SOUTH SOUTHEAST AT ABOUT 20 MPH. ANOTHER STRONG STORM WAS LOCATED NEAR THE TOWN OF GROVER AND WAS MOVING TO THE EAST AT 20 MPH. LOCALLY HEAVY RAIN AND HAIL ARE LIKELY WITH THESE STORMS. IF YOU ARE IN THE VICINTY OF THESE STORMS...BE PREPARED TO MOVE TO A PLACE OF SHELTER IMMEDIATELY. MONITOR THIS EVENINGS WEATHER FOR LATER STATEMENTS OR ANY POSSIBLE WARNINGS. SZOKE/HOLZINGER
Special weather statement, Jul 17, 9:07 PM MDT, 23 minutes before
COZ012-180345- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 905 PM MDT FRI JUL 17 1992 ...STRONG THUNDERSTORMS NEAR THE WELD AND LOGAN COUNTY LINE... AT 905 PM MDT NATIONAL WEATHER SERVICE RADAR INDICATED A VERY STRONG THUNDERSTORM NEAR THE WELD AND LOGAN COUNTY LINE ABOUT 20 MILES SOUTH OF THE NEBRASKA STATE LINE. NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED STRONG WINDS ARE LIKELY WITH THIS STORM. IN ADDITION HAIL AND BRIEF HEAVY RAIN IS ALSO POSSIBLE. THE STORM WAS MOVING MAINLY TO THE EAST AT 20 TO 25 MPH. IT WILL BE AFFECTING WESTERN WASHINGTON COUNTY DURING THE NEXT 30 MINUTES. IF YOU ARE IN THE VICINTY OF THIS STORM BE PREPARED TO MOVE TO A PLACE OF SHELTER IMMEDIATELY. MONITOR THIS EVENINGS WEATHER FOR LATER STATEMENTS OR ANY POSSIBLE WARNINGS. SZOKE/HOLZINGER
The office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 17, 8:00 PM MDT | Tornado Warning | BOU | Yuma | 30 min |
| Jul 17, 8:56 PM MDT | Severe Thunderstorm Warning | BOU | Morgan, Weld | 34 min |
Nearby
Severe Thunderstorm Warnings in Colorado, 1992Every severe thunderstorm warning in 1992
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.