Alert archive / Colorado / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 151, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this severe thunderstorm warning at Aug 31, 1997, 7:16 PM MDT for Lincoln County, Colorado. It was in force for 44 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.
The facts
- Issued
- Aug 31, 1997, 7:16 PM MDT (01:16 UTC)
- Expired
- Aug 31, 1997, 8:00 PM MDT
- In force
- 44 min
- Issued by
- NWS Denver/Boulder, CO
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Lincoln County, CO
The radar
The Pueblo radar (KPUX), 95 km from the middle of the area, began a volume at 01:19 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, 1.3 hours before the alert went out and 92 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
- 445 J/kg
- Mixed-layer CIN
- -26 J/kg
- Mixed-layer LCL
- 1931 m above ground
- 0-6 km bulk shear
- 4 kt
- 0-1 km storm-relative helicity
- 23 m²/s²
- 0-3 km storm-relative helicity
- 27 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KDEN 010117 RRA
SVRDEN
COC073-010200-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE DENVER CO
716 PM MDT SUN AUG 31 1997
THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A SEVERE
THUNDERSTORM WARNING EFFECTIVE UNTIL 800 PM MDT FOR PEOPLE IN THE
FOLLOWING COUNTIES...
IN EAST CENTRAL COLORADO
CENTRAL LINCOLN
INCLUDING THE FOLLOWING LOCATIONS
HUGO
AT 716 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM 15 MILES SOUTHWEST OF HUGO...OR ABOUT 20 MILES
SOUTH OF LIMON.
THE STORM WAS MOVING NORTHEAST AT 35 MILES PER HOUR...AND WILL MOVE
INTO HUGO AROUND 730 PM.
VERY LARGE HAIL ALONG WITH DAMAGING WINDS ARE POSSIBLE WITH THIS
SEVERE THUNDERSTORM. IF YOU ARE IN THE PATH OF THE STORM...PUT YOUR
CAR IN A GARAGE AND MOVE TO A SUBSTANTIAL SHELTER.
REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY. THEY
WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST
OFFICE IN DENVER.
LAT...LON 3906 10318 3879 10353 3900 10369 3934 10335
GIMMESTADWhat 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
Local storm report, Aug 31, 6:50 PM MDT, 26 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DENVER CO
650 PM MDT SUN AUG 31 1997
...PRELIMINARY STORM REPORT FOR AUGUST 31 1997...
TIME(MDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0520 PM AURORA COLFAX&AIRPORT RD CO 1.00 INCH HAIL
08/31/97 ADAMS
0520 PM AURORA COLFAX&AIRPORT RD CO 1.00 INCH HAIL
08/31/97 ARAPAHOE
0529 PM AURORA COLFAX&AIRPORT RD CO 1.25 INCH HAIL
08/31/97 ADAMS
0529 PM AURORA COLFAX&AIRPORT RD CO 1.25 INCH HAIL
08/31/97 ARAPAHOE
GARD...WSFO DENVERLocal storm report, Aug 31, 6:56 PM MDT, 20 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DENVER CO
650 PM MDT SUN AUG 31 1997
...PRELIMINARY STORM REPORT FOR AUGUST 31 1997...
TIME(MDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0520 PM AURORA COLFAX&AIRPORT RD CO 1.00 INCH HAIL
08/31/97 ADAMS
0520 PM AURORA COLFAX&AIRPORT RD CO 1.00 INCH HAIL
08/31/97 ARAPAHOE
0529 PM AURORA COLFAX&AIRPORT RD CO 1.25 INCH HAIL
08/31/t97 ADAMS
0529 PM AURORA COLFAX&AIRPORT RD CO 1.25 INCH HAIL
08/31/97 ARAPAHOE
GARD...WSFO DENVER
[ ]Nearby
Severe Thunderstorm Warnings in Colorado, 1997Every severe thunderstorm warning in 1997
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.