Alert archive / Colorado / Severe Thunderstorm Warnings in 1995
Severe Thunderstorm Warning 20, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this severe thunderstorm warning at May 20, 1995, 5:23 PM MDT for Larimer County, Weld County, Colorado. It was in force for 52 min.
The area
The counties it named.
The facts
- Issued
- May 20, 1995, 5:23 PM MDT (23:23 UTC)
- Expired
- May 20, 1995, 6:15 PM MDT
- In force
- 52 min
- Issued by
- NWS Denver/Boulder, CO
- Area
- Whole counties
Counties Larimer County, CO, Weld County, CO
The radar
The Cheyenne radar (KCYS), 61 km from the middle of the area, began a volume at 23:22 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, 11.4 hours before the alert went out and 166 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 202327
SVRDEN
COC069-123-210015-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE DENVER CO
523 PM MDT SAT MAY 20 1995
THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A SEVERE
THUNDERSTORM WARNING EFFECTIVE UNTIL 615 PM MDT FOR PEOPLE IN
THE FOLLOWING COUNTIES
IN NORTH CENTRAL COLORADO
SOUTHEASTERN LARIMER
IN NORTHEASTERN COLORADO
WEST CENTRAL WELD
INCLUDING THE FOLLOWING LOCATIONS
AULT...EATON...EVANS...FORT COLLINS...GARDEN CITY...
GILCREST...GREELEY...HARMONY...LA SALLE...LOVELAND...
MILLIKEN...MILTON RESERVOIR...NUNN...PECKHAM...PIERCE...
SEVERANCE...TIMNATH...WELLINGTON AND WINDSOR
AT 523 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
A SEVERE THUNDERSTORM 4 MILES SOUTH OF WELLINGTON ...OR ABOUT 6
MILES NORTHEAST OF FORT COLLINS.
A PRIVATE METEOROLOGIST IN FORT COLLINS HAS RECEIVED REPORTS OF
1/4 INCH DIAMETER HAIL IN WELLINGTON AND FORT COLLINS. THIS STORM
IS STILL INTENSIFYING AND COULD PRODUCE LARGE HAIL WITHIN THE NEXT
HALF HOUR. HEAVY RAIN AND STRONG GUSTY WINDS ARE ALSO REPORTED IN
FORT COLLINS.
THE STORM WAS MOVING TO THE SOUTHEAST ABOUT 20 MPH AND COULD REACH
LOVELAND BY 615 PM MDT.
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.
END...WSFO DENVERWhat 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, 12:50 PM MDT, 4 hours 33 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, 4 hours 4 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
Special weather statement, May 20, 2:11 PM MDT, 3 hours 12 minutes before
COZ041-046-202045- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 208 PM MDT SAT MAY 20 1995 ...STRONG THUNDERSTORMS OCCURING IN ELBERT COUNTY... AT 208 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A THUNDERSTORM 25 MILES WEST OF LIMON. AMATEUR RADIO WEATHER SPOTTERS REPORTED HAVE REPORTED A FUNNEL CLOUD WEST OF AGATE. HOWEVER THE FUNNEL HAS MOVED BACK UP INTO THE STORM. BRIEF DOWNPOURS AND SMALL HAIL ARE POSSIBLE WITH THIS STORM AS IT MOVES TO THE EAST SOUTHEAST AT 20 MPH. TAKE SHELTER IF YOU ARE IN THE PATH OF THIS STORM. ANDERSEN LAT...LON 3927 10399 3928 10427 3950 10428 3950 10399
Local storm report, May 20, 4:13 PM MDT, 1 hour 10 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DENVER CO
512 PM MDT SAT MAY 20 1995
...PRELIMINARY SEVERE WEATHER REPORT...NORTHEAST COLORADO MAY 20 1995...
TIME(MDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0125 PM 1 N OF MONUMENT CO 3/4 INCH DIAMETER HAIL
EL PASO COUNTY
0348 PM 3 S OF BENNET CO 3/4 INCH DIAMETER HAIL
ARAPAHOE COUNTY
BARJENBRUCHLocal storm report, May 20, 4:16 PM MDT, 1 hour 7 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DENVER CO
415 PM MDT SAT MAY 20 1995
...PRELIMINARY SEVERE WEATHER REPORT...NORTHEAST COLORADO MAY 20 1995...
TIME(MDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0125 PM 1 N OF MONUMENT CO 3/4 INCH DIAMETER HAIL
EL PASO COUNTY
0348 PM 3 S OF BENNET CO 3/4 INCH DIAMETER HAIL
ARAPAHOE COUNTY
CORRECTED TIME
BARJENBRUCHSpecial weather statement, May 20, 5:11 PM MDT, 12 minutes before
COZ038-042-043-210000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 510 PM MDT SAT MAY 20 1995 ...STRONG THUNDERSTORM MOVING THROUGH EASTERN LARIMER COUNTY... AT 510 PM MDT A STRONG THUNDERSTORM WAS MOVING SOUTHEAST THROUGH EASTERN LARIMER COUNTY. RADAR INDICATED THAT THE CENTER OF THIS THUNDERSTORM WAS LOCATED ABOUT ABOUT 17 MILES NORTHWEST OF FORT COLLINS. THIS THUNDERSTORM WILL MOVG THROUGH FORT COLLINS BETWEEN 530 AND 6 PM MDT IF IT CONTINUES ITS PRESENT TRACK AND SPEED. THIS THUNDERSTORM WILL ALSO AFFECT THE SOUTHWESTERN PORTION OF WELD COUNTY NAMELY THE TOWNS FROM WINDSOR SOUTH TO PLATTEVILLE BETWEEN 530 AND 630 PM MDT. HAIL AND HEAVY RAIN ALONG WITH GUSTY WINDS AND DEADLY LIGHTNING CAN BE EXPECTED WITH THIS THUNDERSTORM. THIS THUNDERSTORM WILL CAUSE PROBLEMS FOR MOTORISTS ON I-25 BETWEEN LOVELAND AND WELLINGTON BETWEEN 530 AND 630 PM MDT. IF THREATENING WEATHER APPROACHES MOVE INDOORS INTO A STURDY SHELTER. MOTORISTS SHOULD REDUCE SPEED IF RAIN OR HAIL IS ENCOUNTERED. DO NOT TRY TO DRIVE THROUGH FLOODED LOW LYING AREAS. END...WSFO DENVER
The office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 20, 1:32 PM MDT | Severe Thunderstorm Warning | BOU | Douglas | 20 min |
| May 20, 3:48 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Arapahoe | 42 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.