Alert archive / Colorado / Severe Thunderstorm Warnings in 1995
Severe Thunderstorm Warning 55, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this severe thunderstorm warning at Jun 21, 1995, 6:12 PM MDT for Washington County, Colorado. It was in force for 33 min.
The area
The counties it named.
The facts
- Issued
- Jun 21, 1995, 6:12 PM MDT (00:12 UTC)
- Expired
- Jun 21, 1995, 6:45 PM MDT
- In force
- 33 min
- Issued by
- NWS Denver/Boulder, CO
- Area
- Whole counties
County Washington County, CO
The radar
The Denver radar (KFTG), 117 km from the middle of the area, began a volume at 00:16 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 00:00Z, 0.2 hours before the alert went out and 11 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
- 810 J/kg
- Mixed-layer CIN
- -110 J/kg
- Mixed-layer LCL
- 2800 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 93 m²/s²
- 0-3 km storm-relative helicity
- 147 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.7
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KDEN 220013 RRA
SVRDEN
COC121-220045-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE DENVER CO
612 PM MDT WED JUN 21 1995
THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A SEVERE
THUNDERSTORM WARNING EFFECTIVE UNTIL 645 PM MDT FOR PEOPLE IN
THE FOLLOWING COUNTIES
IN NORTHEASTERN COLORADO
NORTHERN WASHINGTON
INCLUDING THE FOLLOWING LOCATIONS
AKRON...BURDETT...LONE STAR...MIDWAY...OTIS AND PLATNER
AT 612 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
A SEVERE THUNDERSTORM 11 MILES SOUTH OF MIDWAY ...OR ABOUT 41
MILES SOUTH OF STERLING.
THE STORM WAS MOVING NORTHEAST AT 12 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.
LAT...LON 4002 10302 3992 10352 4039 10340 4043 10284
RTGWhat 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 21, 2:11 PM MDT, 4 hours 1 minute before
COZ039>041-043-045-222100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 213 PM MDT WED JUN 21 1995 ...STRONG THUNDERSTORMS DEVELOPING IN THE DENVER METRO AREA... AT 210 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM OVER SOUTH CENTRAL ARAPAHOE COUNTY...ABOUT 5 MILES SOUTH OF BENNET. THIS STORM CONTAINED SMALL HAIL AND WIND GUSTS UP TO 45 MPH. OTHER STORMS WERE RAPIDLY DEVELOPING ON THE FAR NORTH AND WEST SIDES OF THE DENVER METRO AREA. THESE STORMS WILL ALSO BE CAPABLE OF PRODUCING SMALL HAIL AND STRONG GUSTY WINDS. ONCE THE STORMS DEVELOP...THEY WILL MOVE TO THE NORTH AT 15 TO 20 MPH. WHEN THUNDERSTORMS APPROACH YOUR AREA...MOVE INDOORS AND STAY AWAY FROM WINDOWS. BARJENBRUCH
Special weather statement, Jun 21, 2:13 PM MDT, 3 hours 59 minutes before
COZ039>041-043-045-222100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 213 PM MDT WED JUN 21 1995 ...STRONG THUNDERSTORMS DEVELOPING IN THE DENVER METRO AREA... AT 210 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM OVER SOUTH CENTRAL ARAPAHOE COUNTY...ABOUT 5 MILES SOUTH OF BENNET. THIS STORM CONTAINED SMALL HAIL AND WIND GUSTS UP TO 45 MPH. OTHER STORMS WERE RAPIDLY DEVELOPING ON THE FAR NORTH AND WEST SIDES OF THE DENVER METRO AREA. THESE STORMS WILL ALSO BE CAPABLE OF PRODUCING SMALL HAIL AND STRONG GUSTY WINDS. ONCE THE STORMS DEVELOP...THEY WILL MOVE TO THE NORTH AT 15 TO 20 MPH. WHEN THUNDERSTORMS APPROACH YOUR AREA...MOVE INDOORS AND STAY AWAY FROM WINDOWS. BARJENBRUCH
Special weather statement, Jun 21, 3:34 PM MDT, 2 hours 38 minutes before
COZ038>039-042>046-222230- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 336 PM MDT WED JUN 21 1995 ...STRONG GUSTY WINDS WITH THUNDERSTORMS THIS EVENING... AT 334 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM 40 MILES EAST OF DENVER...NEAR BYERS. THIS STORM CONTAINED WIND GUSTS UP TO 50 MPH. THIS STORM WAS MOVING EAST AT 15 MPH...AND WILL CONTINUE TO MOVE THROUGH EASTERN ARAPAHOE AND NORT>HERN ELBERT COUNTIES THROUGH 430 PM. OTHER STRONG STORMS WITH GUSTY WINDS WILL MOVE THROUGH LARIMER AND WELD COUNTIES. WHEN THIS STORM APPROACHES YOUR AREA...MOVE INDOORS AND STAY AWAY FROM WINDOWS. BARJENBRUCH
Special weather statement, Jun 21, 3:36 PM MDT, 2 hours 36 minutes before
COZ038>039-042>046-222230- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 336 PM MDT WED JUN 21 1995 ...STRONG GUSTY WINDS WITH THUNDERSTORMS THIS EVENING... AT 334 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM 40 MILES EAST OF DENVER...NEAR BYERS. THIS STORM CONTAINED WIND GUSTS UP TO 50 MPH. THIS STORM WAS MOVING EAST AT 15 MPH...AND WILL CONTINUE TO MOVE THROUGH EASTERN ARAPAHOE AND NORTHERN ELBERT COUNTIES THROUGH 430 PM. OTHER STRONG STORMS WITH GUSTY WINDS WILL MOVE THROUGH LARIMER AND WELD COUNTIES. WHEN THIS STORM APPROACHES YOUR AREA...MOVE INDOORS AND STAY AWAY FROM WINDOWS. BARJENBRUCH
The office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 21, 7:04 PM MDT | Severe Thunderstorm Warning | BOU | Washington | 26 min |
| Jun 22, 4:40 PM MDT | Severe Thunderstorm Warning | BOU | Douglas, Elbert | 35 min |
| Jun 22, 4:50 PM MDT | Tornado Warning | BOU | Douglas, Elbert | 25 min |
| Jun 22, 4:55 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 50 min |
| Jun 22, 5:37 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 53 min |
| Jun 22, 5:44 PM MDT | Severe Thunderstorm Warning | BOU | Arapahoe, Douglas | 36 min |
| Jun 22, 5:44 PM MDT | Severe Thunderstorm Warning | BOU | Denver | 36 min |
| Jun 22, 5:54 PM MDT | Severe Thunderstorm Warning | BOU | Sedgwick | 36 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.