Alert archive / Colorado / Severe Thunderstorm Warnings in 1995
Severe Thunderstorm Warning 18, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this severe thunderstorm warning at May 20, 1995, 1:32 PM MDT for Douglas County, Colorado. It was in force for 20 min.
The area
The counties it named.
The facts
- Issued
- May 20, 1995, 1:32 PM MDT (19:32 UTC)
- Expired
- May 20, 1995, 1:52 PM MDT
- In force
- 20 min
- Issued by
- NWS Denver/Boulder, CO
- Area
- Whole counties
County Douglas County, CO
The radar
The Denver radar (KFTG), 61 km from the middle of the area, began a volume at 19:36 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Denver, CO (KDNR), launched 12:00Z, 7.5 hours before the alert went out and 158 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
- 1 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 702 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 40 m²/s²
- 0-3 km storm-relative helicity
- 128 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KDEN 201934
SVRDEN
COC035-202000-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE DENVER CO
132 PM MDT SAT MAY 20 1995
THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A SEVERE
THUNDERSTORM WARNING EFFECTIVE UNTIL 200 PM MDT FOR PEOPLE IN
THE FOLLOWING COUNTIES
IN NORTHEASTERN COLORADO
SOUTHEASTERN DOUGLAS
INCLUDING THE FOLLOWING LOCATIONS
GREENLAND AND LARKSPUR
AT 132 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
A SEVERE THUNDERSTORM 4 MILES EAST OF GREENLAND ...OR ABOUT 23
MILES NORTH OF COLORADO SPRINGS.
AMATEUR RADIO WEATHER SPOTTERS REPORTED 3/4 INCH HAIL 1 MILE NORTH OF
MONUMENT.
THE STORM WAS MOVING TO THE SOUTHEAST AT 20 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 VVERY
HEAVY RAIN.
TO REPORT SEVERE WEATHER HAVE THE NEAREST LAW ENFORCEMENT
AGENCY RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
FORECAST OFFICE IN DENVER.
ANDERSEN
LAT...LON 3912 10465 3913 10494 3927 10491 3928 10462What 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 20, 10:43 AM MDT, 2 hours 49 minutes before
COZ015-030>050-067-071-072-DD0600- SIGNIFICANT WEATHER OUTLOOK FOR NORTHEAST AND NORTH CENTRAL COLORADO NATIONAL WEATHER SERVICE DENVER CO 1100 AM MDT DDD MMM DD 1995 THIS OUTLOOK PERTAINS TO THE FOLLOWING COLORADO COUNTIES ADAMS ARAPAHOE BOULDER CLEAR CREEK DENVER DOUGLAS ELBERT EL PASO GILPIN GRAND JACKSON JEFFERSON LAKE LARIMER LINCOLN LOGAN MORGAN PARK PHILLIPS SEDGWICK SUMMIT TELLER WASHINGTON WELD SYNOPSIS: LOW PRESSURE OVR THE MTNS AND HIGHS PRESSURE IN NEBRASKA WILL CAUSE SOUTHERLY WINDS ACROSS THE AREAS BRINGING WITH THEM ADDITIONAL MOISTURE FOR THE AREA. THIS AND AND AN UPPER LEVEL DISTURBANCE WILL TRIGGER SOME THUNDERSTORMS THIS AFTERNOON. BY LATE AFTERNOON NEAR THE FOOTHILLS SOME OF THESE STORMS COULD REACH SEVERE LIMITS. IN THE NORTHEAST CORNER OF THE STATE AN ISOLATED STORM MAY REACH SEVERE LIMITS LATE IN THE DAY. SPOTTER ACTIVATION WILL LIKELY BE REQUIRED AFTER 3 PM NEAR THE FOOTHILLS AND MAY BE REQUIRED FARTHER EAST BY 5 PM. ANDERSEN
Special weather statement, May 20, 10:45 AM MDT, 2 hours 47 minutes before
COZ015-030>050-067-071-072-210600- SIGNIFICANT WEATHER OUTLOOK FOR NORTHEAST AND NORTH CENTRAL COLORADO NATIONAL WEATHER SERVICE DENVER CO 1100 AM MDT SAT MAY 20 1995 THIS OUTLOOK PERTAINS TO THE FOLLOWING COLORADO COUNTIES ADAMS ARAPAHOE BOULDER CLEAR CREEK DENVER DOUGLAS ELBERT EL PASO GILPIN GRAND JACKSON JEFFERSON LAKE LARIMER LINCOLN LOGAN MORGAN PARK PHILLIPS SEDGWICK SUMMIT TELLER WASHINGTON WELD SYNOPSIS: LOW PRESSURE OVR THE MTNS AND HIGHS PRESSURE IN NEBRASKA WILL CAUSE SOUTHERLY WINDS ACROSS THE AREAS BRINGING WITH THEM ADDITIONAL MOISTURE FOR THE AREA. THIS AND AND AN UPPER LEVEL DISTURBANCE WILL TRIGGER SOME THUNDERSTORMS THIS AFTERNOON. BY LATE AFTERNOON NEAR THE FOOTHILLS SOME OF THESE STORMS COULD REACH SEVERE LIMITS. IN THE NORTHEAST CORNER OF THE STATE AN ISOLATED STORM MAY REACH SEVERE LIMITS LATE IN THE DAY. SPOTTER ACTIVATION WILL LIKELY BE REQUIRED AFTER 3 PM NEAR THE FOOTHILLS AND MAY BE REQUIRED FARTHER EAST BY 5 PM. ANDERSEN
Special weather statement, May 20, 12:50 PM MDT, 42 minutes before
COZ036-041-201915- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 1248 PM MDT SAT MAY 20 1995 ...STRONG THUNDERSTORM IN DOUGLAS COUNTY... AT 1248 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A THUNDERSTORM 3 MILES NORTH OF PERRY PARK ...OR ABOUT 30 MILES SOUTH OF DENVER. THE STORM WAS MOVING EAST AT 25 MPH. IF YOU ARE IN THE PATH OF THIS STORM SEEK SHELTER AWAY FROM WINDOWS. LISTEN TO NOAA WEATHER RADIO FOR FURTH|ER UPDATES. LAT...LON 3919 10476 3919 10514 3941 10514 3941 10472
Special weather statement, May 20, 1:19 PM MDT, 13 minutes before
COZ036-041-201945- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 117 PM MDT SAT MAY 20 1995 ...STRONG STORM IN DOUGLAS COUNTY WILL MOVE OUT OF THE AREA BY 1:30 PM... AT 117 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A THUNDERSTORM 4 MILES SOUTH OF LARKSPUR ...OR ABOUT 24 MILES NORTH OF COLORADO SPRINGS. HEAVY DOWNPOURS AND SMALL HAIL CAN BE EXPECTED FROM THIS STORM AS IT MOVES TO THE SOUTWEST AT 18 MPH. IF YOU ARE IN THE PATH OF THIS STORM SEEK SHELTER UNTIL THE STORM PASSES. ANDERSEN LAT...LON 3912 10467 3913 10511 3928 10502 3929 10473
The office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 20, 3:48 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Arapahoe | 42 min |
| May 20, 5:23 PM MDT | Severe Thunderstorm Warning | BOU | Larimer, Weld | 52 min |
Nearby
Severe Thunderstorm Warnings in Colorado, 1995Every 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; radar from the NEXRAD Level II archive.