Alert archive / Colorado / Tornado Warnings in 1994
Tornado Warning 1, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this tornado warning at Apr 25, 1994, 2:20 PM MDT for Washington County, Colorado. It was in force for 25 min.
The area
The counties it named.
The facts
- Issued
- Apr 25, 1994, 2:20 PM MDT (20:20 UTC)
- Expired
- Apr 25, 1994, 2:45 PM MDT
- In force
- 25 min
- Issued by
- NWS Denver/Boulder, CO
- Area
- Whole counties
County Washington County, CO
The nearest sounding before it
Denver, CO (KDEN), launched 12:00Z, 8.3 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1386 m above ground
- 0-6 km bulk shear
- 66 kt
- 0-1 km storm-relative helicity
- -16 m²/s²
- 0-3 km storm-relative helicity
- 67 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 252022
TORDEN
COC121-252045-
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DENVER CO
220 PM MDT MON APR 25 1994
THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A TORNADO
WARNING EFFECTIVE UNTIL 245 PM MDT FOR PEOPLE IN THE FOLLOWING
COUNTIES
IN NORTHEASTERN COLORADO
SOUTHWESTERN WASHINGTON
AT 220 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
A POSSIBLE TORNADO 24 MILES NORTH OF LIMON. A PUBLIC REPORT INDICATED A
TORNADO WAS ALSO ON THE GROUND 3 MILES NORTH OF THE LINCOLN COUNTY LINE.
THE STORM WAS MOVING NORTHWEST AT 10 MPH.
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 RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
FORECAST OFFICE IN DENVER.
LAT...LON 3958 10346 r3957 10369 3973 10370 3972 10347What 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, Apr 25, 10:47 AM MDT, 3 hours 33 minutes before
COZALL-251730- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 1045 AM MDT MON APR 25 1994 ...EARLY SEASON THUNDERSTORMS IN NORTHEAST COLORADO... ALL SEVERE THUNDERSTORM WARNINGS HAVE EXPIRED BUT LIGHT TO MODERATE INTENSITY THUNDERSTORMS CONTINUE TO RUMBLE ALONG THE FRONT RANGE AND ADJACENT PLAINS THIS MORNING. THESE THUNDERSTORMS WILL PRODUCE LOCALLY HEAVY RAIN AND SMALL HAIL THROUGH MIDDAY AND POSSIBLY THROUGH THE AFTERNOON. SCATTERED THUNDERSTORMS ARE EXPECTED TO DEVELOP OVER THE REST OF NORTHEAST COLORADO AS THE DAY PROGRESSES. LOCALLY HEAVY RAIN FROM SOME OF THE THUNDERSTORMS COULD CAUSE LOCAL FLOODING OF STREETS...UNDERPASSES AND LOW LYING AREAS. SMALL STREAMS... CREEKS AND CANALS MAY HAVE WATER LEVELS RISE TO NEAR BANKFULL STAGE. THE AREA MOST PRONE TO HEAVY RAIN WILL BE THE FOOTHILLS AND THE PLAINS AREAS BETWEEN THE FOOTHILLS AND I-25. ALL PERSONS IN NORTHEAST COLORADO AND THE FRONT RANGE FOOTHILLS EAST OF THE CONTINENTAL DIVIDE SHOULD STAY ABREAST OF THE LATEST WEATHER FORECASTS AND BE ALERT FOR LATER WEATHER BULLETINS. BOODA
Special weather statement, Apr 25, 11:57 AM MDT, 2 hours 23 minutes before
COZ015-030>045-048>050-260700- SIGNIFICANT WEATHER OUTLOOK FOR NORTHEAST AND NORTH CENTRAL COLORADO NATIONAL WEATHER SERVICE DENVER CO 1200 PM MDT MON APR 25 1994 THIS UPDATED OUTLOOK PERTAINS TO THE FOLLOWING COLORADO COUNTIES ADAMS DENVER JACKSON LOGAN SEDGWICK ARAPAHOE DOUGLAS JEFFERSON MORGAN SUMMIT BOULDER GILPIN LARIMER PARK WASHINGTON CLEAR CREEK GRAND LAKE PHILLIPS WELD ...SNOW ADVISORY MOUNTAINS AND FRONT RANGE FOOTHILLS NORTH OF DENVER THIS AFTERNOON... AN EARLY SPRING STORM WILL SPREAD PRECIPITATION ACROSS NORTHEAST AND NORTH CENTRAL COLORADO THIS AFTERNOON AND EVENING. OVER THE MOUNTAINS AND FRONT RANGE FOOTHILLS NORTH OF DENVER ADDITIONAL SNOW ACCUMULATIONS OF 4 TO 7 INCHES ARE POSSIBLE THIS AFTERNOON. LESSER AMOUNTS OF SNOW ARE POSSIBLE IN THE FOOTHILLS SOUTHWEST OF DENVER. LIGHT SNOW WILL CONTINUE THROUGH THE EVENING HOURS WITH SOME ADDITIONAL ACCUMULATIONS. OVER THE NORTHEASTERN HIGH PLAINS LOW LEVEL UPSLOPE FLOW HAS DEVELOPED WITH EMBEDDED SHOWERS AND THUNDERSTORMS. A FEW OF THESE THUNDERSTORMS MAY BE SEVERE WITH LARGE HAIL AND STRONG GUSTY WINDS THIS AFTERNOON AND EARLY EVENING. LOCALLY HEAVY RAIN OF UP TO AN INCH IS POSSIBLE FROM THESE THUNDERSTORMS. SHOWERS AND THUNDERSTORMS WILL DECREASE DURING THE LATE EVENING HOURS WITH OCCASIONAL RAIN BECOMING MIXED WITH SNOW NEAR THE FOOTHILLS. GARD...WSFO DENVER
The office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 25, 8:18 AM MDT | Severe Thunderstorm Warning | BOU | Boulder, Jefferson | 27 min |
| Apr 25, 8:18 AM MDT | Severe Thunderstorm Warning | BOU | Adams, Denver | 27 min |
| Apr 25, 8:32 AM MDT | Severe Thunderstorm Warning | BOU | Larimer, Weld | 28 min |
| Apr 25, 8:49 AM MDT | Severe Thunderstorm Warning | BOU | Adams, Denver, Jefferson | 41 min |
| Apr 25, 8:49 AM MDT | Severe Thunderstorm Warning | BOU | Boulder, Weld | 41 min |
| Apr 25, 9:03 AM MDT | Severe Thunderstorm Warning | BOU | Larimer, Weld | 42 min |
| Apr 25, 9:45 AM MDT | Severe Thunderstorm Warning | BOU | Weld | 30 min |
| Apr 25, 1:47 PM MDT | Severe Thunderstorm Warning | BOU | Arapahoe, Washington | 43 min |
| Apr 25, 2:45 PM MDT | Severe Thunderstorm Warning | BOU | Washington | 25 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; the sounding from the Mesonet's radiosonde archive.