Alert archive / Colorado / Severe Thunderstorm Warnings in 1994
Severe Thunderstorm Warning 121, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this severe thunderstorm warning at Aug 12, 1994, 5:02 PM MDT for Morgan County, Washington County, Colorado. It was in force for 43 min.
The area
The counties it named.
The facts
- Issued
- Aug 12, 1994, 5:02 PM MDT (23:02 UTC)
- Expired
- Aug 12, 1994, 5:45 PM MDT
- In force
- 43 min
- Issued by
- NWS Denver/Boulder, CO
- Area
- Whole counties
Counties Morgan County, CO, Washington County, CO
The radar
The Denver radar (KFTG), 96 km from the middle of the area, began a volume at 23:05 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 (KDEN), launched 12:00Z, 11.0 hours before the alert went out and 36 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
- 4 J/kg
- Mixed-layer CIN
- -257 J/kg
- Mixed-layer LCL
- 2573 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 24 m²/s²
- 0-3 km storm-relative helicity
- 26 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
What 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
Special weather statement, Aug 12, 4:14 PM MDT, 48 minutes before
COZ044-122315-
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
415 PM MDT FRI AUG 12 1994
...STRONG THUNDERSTORMS OVER MORGAN COUNTY COLORADO...
AT 410 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
A STRONG THUNDERSTORM 4 MILES NORTH OF WELDONA ...OR ABOUT 42 MILES
SOUTHWEST OF STERLING. OTHER STORMS WERE OVER NORTHERN MORGAN
COUNTY. THE STORMS WERE MOVING TO THE SOUTHEAST AT 10 TO 15 MPH.
ALL PEOPLE IN MORGAN COUNTY INCLUDING THE FOLLOWING LOCATIONS
ANTELOPE SPRINGS...BRUSH...FORT MORGAN...HILLROSE...LOG
LANE VILLAGE...SNYDER AND WELDONA
SHOULD BE ALERT FOR HEAVY RAIN...HAIL...FREQUENT DANGEROUS LIGHTNING
ANS STRONG GUSTY WINDS TIL 515 PM MDT THIS AFTERNOON.
HEAVY RAINS MAY FLOOD LOW LYING AREAS SUCH AS DITCHES AND
UNDERPASSES. AVOID THESE AREAS AND DO NOT CROSS FLOODED ROADS
AS THEY MAY BE WASHED OUT. WATER LEVELS OF SMALL STREAMS AND
RIVERS MAY ALSO RISE...THEREFORE SEEK HIGHER GROUND IF
THREATENED BY FLOOD WATERS.
INTENSE LIGHTNING IS REPORTED WITH THIS STORM. IF OUTDOORS...
STAY AWAY FROM ISOLATED HIGH OBJECTS SUCH AS TREES. MOVE
INDOORS IF POSSIBLE. WHEN INDOORS...STAY AWAY FROM WINDOWS AND
DOORS AND AVOID USING TELEPHONES UNLESS IT IS AN EMERGENCY.
TRY TO UNPLUG UNNECESSARY ELECTRICAL APPLIANCES BEFORE THE
THUNDERSTORM APPROACHES.
GARD...WSFO DENVER
LAT...LON 4015 10347 4016 10394 4052 10408 4052 10347Special weather statement, Aug 12, 4:15 PM MDT, 47 minutes before
COZ044-122315-
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
415 PM MDT FRI AUG 12 1994
...STRONG THUNDERSTORMS OVER MORGAN COUNTY COLORADO...
AT 410 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
A STRONG THUNDERSTORM 4 MILES NORTH OF WELDONA ...OR ABOUT 42 MILES
SOUTHWEST OF STERLING. OTHER STORMS WERE OVER NORTHERN MORGAN
COUNTY. THE STORMS WERE MOVING TO THE SOUTHEAST AT 10 TO 15 MPH.
ALL PEOPLE IN MORGAN COUNTY INCLUDING THE FOLLOWING LOCATIONS
ANTELOPE SPRINGS...BRUSH...FORT MORGAN...HILLROSE...LOG
LANE VILLAGE...SNYDER AND WELDONA
SHOULD BE ALERT FOR HEAVY RAIN...HAIL...FREQUENT DANGEROUS LIGHTNING
ANS STRONG GUSTY WINDS TIL 515 PM MDT THIS AFTERNOON.
HEAVY RAINS MAY FLOOD LOW LYING AREAS SUCH AS DITCHES AND
UNDERPASSES. AVOID THESE AREAS AND DO NOT CROSS FLOODED ROADS
AS THEY MAY BE WASHED OUT. WATER LEVELS OF SMALL STREAMS AND
RIVERS MAY ALSO RISE...THEREFORE SEEK HIGHER GROUND IF
THREATENED BY FLOOD WATERS.
INTENSE LIGHTNING IS REPORTED WITH THIS STORM. IF OUTDOORS...
STAY AWAY FROM ISOLATED HIGH OBJECTS SUCH AS TREES. MOVE
INDOORS IF POSSIBLE. WHEN INDOORS...STAY AWAY FROM WINDOWS AND
DOORS AND AVOID USING TELEPHONES UNLESS IT IS AN EMERGENCY.
TRY TO UNPLUG UNNECESSARY ELECTRICAL APPLIANCES BEFORE THE
THUNDERSTORM APPROACHES.
GARD...WSFO DENVER
LAT...LON 4015 10347 4016 10394 4052 10408 4052 10347Special weather statement, Aug 12, 4:56 PM MDT, 6 minutes before
COZ044-049-122345-
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
500 PM MDT FRI AUG 12 1994
...STRONG THUNDERSTORMS MOVING INTO NORTHERN WASHINGTON COUNTY
COLORADO...
AT 451 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
A STRONG THUNDERSTORM 9 MILES SOUTH OF HILLROSE ...OR ABOUT 35 MILES
SOUTHWEST OF STERLING. THE STORM WAS MOVING TO THE SOUTHEAST AT
15 MPH. OTHER STORMS WERE LOCATED OVER CENTRAL MORGAN COUNTY.
ALL PEOPLE IN EASTERN AND SOUTHERN MORGAN COUNTY AND NORTHERN WASHINGTON
COUNTY...INCLUDING THE FOLLOWING LOCATIONS
ADENA SCHOOL...ANTELOPE SPRINGS...BRUSH...FORT MORGAN...
GARY...HILLROSE...LOG LANE VILLAGE...MIDWAY...SNYDER AND
TWELVE-MILE CORNER
SHOULD BE ALERT FOR HEAVY RAIN...HAIL...FREQUENT DANGEROUS LIGHTNING
AND STRONG GUSTY WINDS FROM THESE STORMS UNTIL 545 PM MDT THIS
AFTERNOON.
HEAVY RAINS MAY FLOOD LOW LYING AREAS SUCH AS DITCHES AND
UNDERPASSES. AVOID THESE AREAS AND DO NOT CROSS FLOODED ROADS
AS THEY MAY BE WASHED OUT. WATER LEVELS OF SMALL STREAMS AND
RIVERS MAY ALSO RISE...THEREFORE SEEK HIGHER GROUND IF
THREATENED BY FLOOD WATERS.
INTENSE LIGHTNING IS REPORTED WITH THIS STORM. IF OUTDOORS...
STAY AWAY FROM ISOLATED HIGH OBJECTS SUCH AS TREES. MOVE
INDOORS IF POSSIBLE. WHEN INDOORS...STAY AWAY FROM WINDOWS AND
DOORS AND AVOID USING TELEPHONES UNLESS IT IS AN EMERGENCY.
TRY TO UNPLUG UNNECESSARY ELECTRICAL APPLIANCES BEFORE THE
THUN0DERSTORM APPROACHES.
GARD...WSFO DENVER
LAT...LON 4003 10322 4004 10410 4052 10372 4035 10324Special weather statement, Aug 12, 5:00 PM MDT, 2 minutes before
COZ044-049-122345-
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
500 PM MDT FRI AUG 12 1994
...STRONG THUNDERSTORMS MOVING INTO NORTHERN WASHINGTON COUNTY
COLORADO...
AT 451 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
A STRONG THUNDERSTORM 9 MILES SOUTH OF HILLROSE ...OR ABOUT 35 MILES
SOUTHWEST OF STERLING. THE STORM WAS MOVING TO THE SOUTHEAST AT
15 MPH. OTHER STORMS WERE LOCATED OVER CENTRAL MORGAN COUNTY.
ALL PEOPLE IN EASTERN AND SOUTHERN MORGAN COUNTY AND NORTHERN WASHINGTON
COUNTY...INCLUDING THE FOLLOWING LOCATIONS
ADENA SCHOOL...ANTELOPE SPRINGS...BRUSH...FORT MORGAN...
GARY...HILLROSE...LOG LANE VILLAGE...MIDWAY...SNYDER AND
TWELVE-MILE CORNER
SHOULD BE ALERT FOR HEAVY RAIN...HAIL...FREQUENT DANGEROUS LIGHTNING
AND STRONG GUSTY WINDS FROM THESE STORMS UNTIL 545 PM MDT THIS
AFTERNOON.
HEAVY RAINS MAY FLOOD LOW LYING AREAS SUCH AS DITCHES AND
UNDERPASSES. AVOID THESE AREAS AND DO NOT CROSS FLOODED ROADS
AS THEY MAY BE WASHED OUT. WATER LEVELS OF SMALL STREAMS AND
RIVERS MAY ALSO RISE...THEREFORE SEEK HIGHER GROUND IF
THREATENED BY FLOOD WATERS.
INTENSE LIGHTNING IS REPORTED WITH THIS STORM. IF OUTDOORS...
STAY AWAY FROM ISOLATED HIGH OBJECTS SUCH AS TREES. MOVE
INDOORS IF POSSIBLE. WHEN INDOORS...STAY AWAY FROM WINDOWS AND
DOORS AND AVOID USING TELEPHONES UNLESS IT IS AN EMERGENCY.
TRY TO UNPLUG UNNECESSARY ELECTRICAL APPLIANCES BEFORE THE
THUNDERSTORM APPROACHES.
GARD...WSFO DENVER
LAT...LON 4003 10322 4004 10410 4052 10372 4035 10324The office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 12, 5:20 PM MDT | Tornado Warning | BOU | Washington | 25 min |
| Aug 12, 5:45 PM MDT | Tornado Warning | BOU | Washington | 30 min |
Nearby
Severe Thunderstorm Warnings in Colorado, 1994Every severe thunderstorm warning 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; radar from the NEXRAD Level II archive.