Alert archive / Colorado / Tornado Warnings in 1996
Tornado Warning 82, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this tornado warning at Jul 31, 1996, 9:16 PM MDT for Adams County, Arapahoe County, Colorado. It was in force for 44 min. 5 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Jul 31, 1996, 9:16 PM MDT (03:16 UTC)
- Expired
- Jul 31, 1996, 10:00 PM MDT
- In force
- 44 min
- Issued by
- NWS Denver/Boulder, CO
- Area
- Whole counties
Counties Adams County, CO, Arapahoe County, CO
The radar
The Denver radar (KFTG), 18 km from the middle of the area, began a volume at 03:16 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 31, 9:29 PM MDT | Tornado F0 | Byers, CO | |
| Jul 31, 9:35 PM MDT | Tornado F0 | Denver Intl Airport, CO | |
| Jul 31, 9:45 PM MDT | Tornado F0 | Strasburg, CO | |
| Jul 31, 10:05 PM MDT | Tornado F0 | Byers, CO | |
| Jul 31, 10:09 PM MDT | Tornado F0 | Deer Trail, CO |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The nearest sounding before it
Denver, CO (KDNR), launched 00:00Z, 3.3 hours before the alert went out and 95 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
- 1235 J/kg
- Mixed-layer CIN
- -38 J/kg
- Mixed-layer LCL
- 2359 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- 111 m²/s²
- 0-3 km storm-relative helicity
- 264 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 10.9
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KDEN 010319
TORDEN
COC001-005-010400-
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DENVER CO
916 PM MDT WED JUL 31 1996
THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A TORNADO WARNING
EFFECTIVE UNTIL 1000 PM MDT FOR PEOPLE IN THE FOLLOWING COUNTIES
IN NORTHEAST COLORADO
EASTERN ARAPAHOE AND EASTERN ADAMS
INCLUDING THE FOLLOWING LOCATIONS
BYERS...DEER TRAIL AND LEADER
AT 915 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
THUNDERSTORM WITH A POSSIBLE TORNADO 5 MILES NORTHWEST OF LEADER...OR
ABOUT 45 MILES SOUTHEAST OF GREELEY.
THE STORM WAS MOVING SOUTH/SOUTHEAST AT 30 MILES PER HOUR. THE
STORM HAD ALSO PRODUCED WINDS UP TO 80 MPH IN EXTREME SOUTHEAST WELD
COUNTY.
THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.
BARJENBRUCH
LAT...LON 3959 10378 3958 10421 3998 10437 3999 10396What forecasters said that day
The local office's own words before this tornado 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, Jul 31, 3:20 PM MDT, 5 hours 56 minutes before
COZ046-047-312130- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 318 PM MDT WED JUL 31 1996 ...LARGE HAIL IN HUGO... AT 315PM HAIL TO JUST UNDER GOLFBALL HAIL WAS REPORTED IN HUGO. A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT IN EASTERN LINCOLN COUNTY INCLUDING HUGO UNTIL 330 PM. THE STORM WAS LOCATED JUST EAST OF HUGO AND SLOWLY DRIFTING SOUTH. RESIDENTS OF THE AREA SHOULD TAKE COVER FROM THIS STORM. RTG &&
Special weather statement, Jul 31, 4:57 PM MDT, 4 hours 19 minutes before
COZ038>050-310400- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 455 PM MDT WED JUL 31 1996 ...TORNADO WATCH IN EFFECT FOR ALMOST ALL OF EASTERN COLORADO UNTIIL 9 PM MDT... THE WATCH COVERS AREAS EAST OF INTERSTATE 25...INCLUDING THE EASTERN PORTIONS OF THE DENVER METRO AREA...GREELEY...FORT MORGAN...STERLING...AKRON...JULESBURG...LIMON...AND CASTLE ROCK. SCATTERED THUNDERSTORMS CONTINUED ACROSS NORTHEAST COLORADO EARLY THIS EVENING. SEVERE STORMS WITH LARGE HAIL WERE OCCURRING IN LINCOLN COUNTY. THESE SEVERE STORMS MAY BECOME MORE WIDESPREAD AS THE EVENING PROGRESSES. A TORNADO WATCH MEANS THAT CONDITIONS ARE FAVORABLE FOR SEVERE THUNDERSTORMS AND TORNADOES. d IF A TORNADO IS SIGHTED OR A WARNING IS ISSUED...TAKE COVER IMMEDIATELY. GO TO YOUR BASEMENT AND GET UNDER A STURDY PIECE OF FURNITURE. BARJENBRUCH
The office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 31, 6:39 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 4 hr |
| Jul 31, 6:39 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 51 min |
| Jul 31, 6:49 PM MDT | Severe Thunderstorm Warning | BOU | Elbert, Lincoln | 41 min |
| Jul 31, 7:28 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 47 min |
| Jul 31, 7:45 PM MDT | Tornado Warning | BOU | Weld | 30 min |
| Jul 31, 7:51 PM MDT | Tornado Warning | BOU | Phillips | 24 min |
| Jul 31, 7:57 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Morgan | 48 min |
| Jul 31, 8:13 PM MDT | Tornado Warning | BOU | Weld | 32 min |
| Jul 31, 8:45 PM MDT | Tornado Warning | BOU | Adams, Weld | 30 min |
| Jul 31, 8:50 PM MDT | Severe Thunderstorm Warning | BOU | Morgan, Washington | 55 min |
| Jul 31, 9:58 PM MDT | Tornado Warning | BOU | Arapahoe, Elbert | 47 min |
| Jul 31, 10:18 PM MDT | Tornado Warning | BOU | Lincoln | 42 min |
| Jul 31, 10:25 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Weld | 35 min |
| Jul 31, 10:54 PM MDT | Tornado Warning | BOU | Lincoln | 51 min |
| Jul 31, 11:44 PM MDT | Severe Thunderstorm Warning | BOU | Lincoln | 31 min |
| Aug 1, 2:22 PM MDT | Severe Thunderstorm Warning | BOU | Logan | 9 hr |
| Aug 1, 2:56 PM MDT | Severe Thunderstorm Warning | BOU | Logan, Phillips | 49 min |
| Aug 1, 3:47 PM MDT | Severe Thunderstorm Warning | BOU | Washington | 28 min |
| Aug 1, 4:13 PM MDT | Severe Thunderstorm Warning | BOU | Washington | 47 min |
| Aug 1, 4:22 PM MDT | Severe Thunderstorm Warning | BOU | Lincoln | 53 min |
| Aug 1, 4:39 PM MDT | Tornado Warning | BOU | Washington | 21 min |
| Aug 1, 5:07 PM MDT | Tornado Warning | BOU | Washington | 38 min |
| Aug 1, 5:26 PM MDT | Tornado Warning | BOU | Washington | 34 min |
Nearby
Tornado Warnings in Colorado, 1996Every tornado warning in 1996Tornadoes in 1996
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.