Alert archive / Colorado / Tornado Warnings in 1996
Tornado Warning 80, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this tornado warning at Jul 31, 1996, 8:13 PM MDT for Weld County, Colorado. It was in force for 32 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, 8:13 PM MDT (02:13 UTC)
- Expired
- Jul 31, 1996, 8:45 PM MDT
- In force
- 32 min
- Issued by
- NWS Denver/Boulder, CO
- Area
- Whole counties
County Weld County, CO
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 31, 8:20 PM MDT | Hail 1 | Roggen, CO | |
| Jul 31, 8:20 PM MDT | Thunderstorm Wind 70 | Roggen, CO | |
| Jul 31, 8:21 PM MDT | Tornado F0 | Roggen, CO | |
| Jul 31, 8:40 PM MDT | Tornado F0 | Keenesburg, CO | |
| Jul 31, 8:52 PM MDT | Hail 1.75 | Roggen, 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, 2.2 hours before the alert went out and 125 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 010216
TORDEN
COC123-010245-
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DENVER CO
813 PM MDT WED JUL 31 1996
THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A TORNADO
WARNING EFFECTIVE UNTIL 845 PM MDT FOR PEOPLE IN THE FOLLOWING
COUNTIES
IN NORTHEASTERN COLORADO
SOUTHEASTERN WELD
INCLUDING THE FOLLOWING LOCATIONS
PROSPECT VALLEY...RIVERSIDE RESERVOIR AND ROGGEN
AT 813 PM MDT WEATHER SERVICE DOPPLER RADAR INDICATED A
THUNDERSTORM WITH A POSSIBLE TORNADO NEAR HARDIN...OR
ABOUT 15 MILES EAST OF GREELEY.
AT 806 PM...A TORNADO WAS REPORTED AT GILL...ABOUT 10 MILES NORTHEAST
OF GREELEY. THIS TORNADO WAS MOVING SOUTH/SOUTHEAST AT 30 MPH.
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 4003 10415 4005 10451 4042 10448 4036 10423What 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, 4 hours 53 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, 3 hours 16 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, 8:45 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, 9:16 PM MDT | Tornado Warning | BOU | Adams, Arapahoe | 44 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.