Alert archive / Colorado / Tornado Warnings in 1994
Tornado Warning 8, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this tornado warning at Jul 16, 1994, 5:30 PM MDT for Larimer County, Weld County, Colorado. It was in force for 45 min. 1 report 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 16, 1994, 5:30 PM MDT (23:30 UTC)
- Expired
- Jul 16, 1994, 6:15 PM MDT
- In force
- 45 min
- Issued by
- NWS Denver/Boulder, CO
- Area
- Whole counties
Counties Larimer County, CO, Weld County, CO
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 16, 5:45 PM MDT | Tornado F0 | Prospect Valley, CO | Spotters reported a brief tornado touchdown in an open field east of Prospect Valley. No injuries or damage were reported. This tornado was seen simultaneously with the above tornado. |
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. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.
The nearest sounding before it
Denver, CO (KDEN), launched 12:00Z, 11.5 hours before the alert went out and 166 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
- 26 J/kg
- Mixed-layer CIN
- -553 J/kg
- Mixed-layer LCL
- 1654 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 17 m²/s²
- 0-3 km storm-relative helicity
- 22 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 162334 COR
TORDEN
COC069-123-170015-
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING...CORRECTION TO ADD PROSPECT VALLEY TO WARNING
NATIONAL WEATHER SERVICE DENVER CO
530 PM MDT SAT JUL 16 1994
THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A TORNADO
WARNING EFFECTIVE UNTIL 615 PM MDT FOR PEOPLE IN THE FOLLOWING
COUNTIES
IN NORTH CENTRAL COLORADO
SOUTHEASTERN LARIMER
IN NORTHEASTERN COLORADO
SOUTHWESTERN WELD
INCLUDING THE FOLLOWING LOCATIONS
BARNESVILLE...BERTHOUD...EVANS...FORT COLLINS...GARDEN CITY
...GILCREST...GILL...GREELEY...HARMONY...KERSEY...LA SALLE
...LOVELAND...LUCERNE...MASONVILLE...MILLIKEN...MILTON
RESERVOIR...PECKHAM...PLATTEVILLE...RIVERSIDE RESERVOIR...
ROGGEN...SEVERANCE...TIMNATH...WINDSOR AND PROSPECT VALLEY.
AT 528 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
A POSSIBLE TORNADO 4 MILES SOUTH OF TIMNATH ...OR ABOUT 9 MILES
SOUTHEAST OF FORT COLLINS.
AT 513PM A TORNADO WAS REPORTED 3 MILES SOUTH OF KERSEY IN WELD COUNTY.
AT 528PM WINDS WERE GUSTING TO 75 MPH AT HORSETOOTH RESERVOIR JUST WEST
OF FORT COLLINS. AT 528 HAIL TO 1 1/4 INCH WAS REPORTED AT WINDSOR IN
WELD COUNTY.
THIS IS A COMPLEX OF SEVERE THUNDERSTORMS WHICH ARE MOVING TOWARD THE
SOUTH SOUTHEAST AT 20 MPH.
MOVE TO A PLACE OF SAFETY IF YOU ARE NEAR ANY OF THESE THUNDERSTORMS.
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.
IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN
THE NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH
YOUR HANDS.
TO REPORT SEVERE WEATHER HAVE THE NEAREST LAW ENFORCEMENT
AGENCY RELAYN YOUR REPORT TO THE NATIONAL WEATHER SERVICE
FORECAST OFFICE IN DENVER.
HOLZINGER
LAT...LON 4005 10428 4035 10529 4060 10532 4044 10420What 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 16, 1:24 PM MDT, 4 hours 6 minutes before
COZ041-162000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 125 PM MDT SAT JUL 16 1994 ...STRONG THUNDERSTORM OVER DOUGLAS COUNTY... AT 120 PM...A STRONG THUNDERSTORM WAS INDICATED ABOUT 5 MILES SOUTH OF CASTLE ROCK MOVING EAST AT 20 MPH AND WILL LIKELY MOVE ACROSS SOUTHEAST DOUGLAS COUNTY BY 200 PM MDT. IF YOU ARE IN THE PATH OF THIS STORM...ESPECIALLY IN OR NEAR THE TOWNS OF LARKSPUR...CASTLE ROCK AND FRANKTOWN...BE READY FOR WINDS GUSTING TO 40 MPH...AND THE POSSIBILITY OF BRIEF HEAVY RAIN OR HAIL. STAY TUNED TO NOAA WEATHER RADIO FOR ANY UPDATES OR POSSIBLE WARNINGS. DULONG
Special weather statement, Jul 16, 3:10 PM MDT, 2 hours 20 minutes before
COZ038-042-162215- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 310 PM MDT SAT JUL 16 1994 ...VERY STRONG THUNDERSTORM HEADING TOWARDS LARIMER AND WELD COUNTIES... A VERY STRONG THUNDERSTORM JUST ACROSS THE BORDER IN WYOMING WILL LIKELY MOVE INTO EXTREME NORTHEAST LARIMER AND NORTHWEST WELD COUNTIES OF COLORADO BY 330 PM. IF YOU ARE IN THE PATH OF THIS STORM...ESPECIALLY IN OR NEAR THE COLORADO TOWNS OF VIRGINIA DALE...LIVERMORE...NORFOLK...WARREN... WELLINGTON OR NUNN...BE READY TO TAKE COVER FROM THREATENING WEATHER FROM NOW THROUGH 415 PM. A WARNING MAY BE ISSUED FOR THIS STORM SHORTLY. DULONG
Special weather statement, Jul 16, 3:12 PM MDT, 2 hours 18 minutes before
COZ038-042-162215- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 310 PM MDT SAT JUL 16 1994 ...VERY STRONG THUNDERSTORM HEADING TOWARDS LARIMER AND WELD COUNTIES... A VERY STRONG THUNDERSTORM JUST ACROSS THE BORDER IN WYOMING WILL LIKELY MOVE INTO EXTREME NORTHEAST LARIMER AND NORTHWEST WELD COUNTIES OF COLORADO BY 330 PM. IF YOU ARE IN THE PATH OF THIS STORM...ESPECIALLY IN OR NEAR THE COLORADO TOWNS OF VIRGINIA DALE...LIVERMORE...NORFOLK...WARREN... WELLINGTON OR NUNN...BE READY TO TAKE COVER FROM THREATENING WEATHER FROM NOW THROUGH 415 PM. A WARNING MAY BE ISSUED FOR THIS STORM SHORTLY. DULONG
Special weather statement, Jul 16, 5:20 PM MDT, 10 minutes before
COZ038>092-170000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 515 PM MDT SAT JUL 16 1994 ...TORNADO WATCH IN EFFECT FOR MUCH OF NORTHEAST COLORADO UNTIL 1100 PM... A TORNADO WATCH NOW COVERS ALL OF NORTHEAST COLORADO FROM THE FOOTHILLS EASTWARD TO THE KANSAS/NEBRASKA BORDER. SEVERAL SEVERE-TORNADIC STORMS WERE LOCATED IN LARIMER AND WELD COUNTY AT 515 PM. MORE SEVERE AND TORNADIC THUNDERSTORMS ARE EXPECTED TOP DEVELOP DURING THE EVENING ACROSS NORTHEAST COLORADO. RESIDENTS IN NORTHEAST COLORADO ARE URGED TO REMAIN ALERT TO CHANGING WEATHER CONDITIONS AND MOVE TO A SAFE LOCATION IF A SEVERE THUNDERSTORM OR TORNADO WARNING IS ISSUED OR THREARTENING WEATHER IS OBSERVED. THE SEVERE THUNDERSTORM WATCH ISSUED EARLIER FOR NORTHEAST COLORADO IS NO LONGER IN EFFECT. IMY
The office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 15, 6:06 PM MDT | Severe Thunderstorm Warning | BOU | Douglas | 39 min |
| Jul 16, 3:22 PM MDT | Severe Thunderstorm Warning | BOU | Larimer, Weld | 38 min |
| Jul 16, 4:04 PM MDT | Tornado Warning | BOU | Larimer, Weld | 26 min |
| Jul 16, 4:30 PM MDT | Tornado Warning | BOU | Larimer, Weld | 30 min |
| Jul 16, 5:00 PM MDT | Tornado Warning | BOU | Larimer, Weld | 30 min |
| Jul 16, 5:52 PM MDT | Tornado Warning | BOU | Adams, Morgan | 53 min |
Nearby
Tornado Warnings in Colorado, 1994Every tornado warning in 1994Tornadoes in 1994
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.