Alert archive / Colorado / Severe Thunderstorm Warnings in 1995
Severe Thunderstorm Warning 13, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this severe thunderstorm warning at May 12, 1995, 7:47 PM MDT for Washington County, Colorado. It was in force for 43 min.
The area
The counties it named.
The facts
- Issued
- May 12, 1995, 7:47 PM MDT (01:47 UTC)
- Expired
- May 12, 1995, 8:30 PM MDT
- In force
- 43 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 01:47 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, 1.8 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
- 299 J/kg
- Mixed-layer CIN
- -15 J/kg
- Mixed-layer LCL
- 1979 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- -21 m²/s²
- 0-3 km storm-relative helicity
- 93 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KDEN 130149
SVRDEN
COC121-130230-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE DENVER CO
747 PM MDT FRI MAY 12 1995
THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A SEVERE
THUNDERSTORM WARNING EFFECTIVE UNTIL 830 PM MDT FOR PEOPLE IN
THE FOLLOWING COUNTIES
IN NORTHEASTERN COLORADO
NORTHEASTERN WASHINGTON
INCLUDING THE FOLLOWING LOCATIONS
AKRON...LONE STAR...OTIS AND PLATNER
AT 747 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
A SEVERE THUNDERSTORM 2 MILES NORTHEAST OF AKRON ...OR ABOUT 33
MILES SOUTH OF STERLING.
THE WEATHER OBSERVER AT AKRON REPORTED 2 INCHES OF HAIL DEPTH ON THE
GROUND VARYING IN SIZE FROM PEA TO 3/4 INCH DIAMETER.
THE STORM WAS MOVING TO THE EAST 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.
GARD...WSFO DENVER
LAT...LON 4002 10N281 4009 10321 4025 10322 4039 10283The office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 12, 6:12 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 48 min |
| May 12, 6:19 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Weld | 41 min |
| May 12, 6:43 PM MDT | Tornado Warning | BOU | Arapahoe, Douglas | 32 min |
| May 12, 7:00 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Morgan, Washington | 45 min |
| May 12, 8:12 PM MDT | Tornado Warning | BOU | Washington | 18 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.