Alert archive / Colorado / Severe Thunderstorm Warnings in 1994
Severe Thunderstorm Warning 101, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this severe thunderstorm warning at Jul 25, 1994, 6:12 PM MDT for Morgan County, Colorado. It was in force for 48 min.
The area
The counties it named.
The facts
- Issued
- Jul 25, 1994, 6:12 PM MDT (00:12 UTC)
- Expired
- Jul 25, 1994, 7:00 PM MDT
- In force
- 48 min
- Issued by
- NWS Denver/Boulder, CO
- Area
- Whole counties
County Morgan County, CO
The radar
The Denver radar (KFTG), 82 km from the middle of the area, began a volume at 00:15 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 00:00Z, 0.2 hours before the alert went out and 66 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
- 212 J/kg
- Mixed-layer CIN
- -168 J/kg
- Mixed-layer LCL
- 2710 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 108 m²/s²
- 0-3 km storm-relative helicity
- 129 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KDEN 260015 RRA
SVRDEN
COC087-260100-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE DENVER CO
612 PM MDT MON JUL 25 1994
THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A SEVERE
THUNDERSTORM WARNING EFFECTIVE UNTIL 700 PM MDT FOR PEOPLE IN
THE FOLLOWING COUNTIES
IN NORTHEASTERN COLORADO
MORGAN
INCLUDING THE FOLLOWING LOCATIONS
BRUSH...FORT MORGAN...GOODRICH...JACKSON RESERVOIR...LOG
LANE VILLAGE...WELDONA AND WIGGINS
AT 612 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
A SEVERE THUNDERSTORM 9 MILES NORTHEAST OF JACKSON RESERVOIR ...
OR ABOUT 38 MILES EAST OF GREELEY.
AMATEUR RADIO WEATHER SPOTTERS REPORTED A LARGE FUNNEL CLOUD IN
NORTHWEST MORGAN. IT DID NOT APPEAR TO TOUCH THE GROUND.
THE STORM WAS MOVING TO THE SOUTHEAST ABOUT 25 MPH.
TO REPORT SEVERE WEATHER HAVE THE NEAREST LAW ENFORCEMENT
AGENCY RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
FORECAST OFFICE IN DENVER. IF THIS THUNDERSTORM APPROACHES...
TAKE COVER IN A STURDY SHELTER. IT COULD PRODUCE A TORNADO WITH
LITTLE OR NO ADVANCE WARNING. THIS THUNDERSTORM IS ALSO CAPABLE
OF PRODUCING GOLF BALL TO BASEBALL SIZE HAIL IN ADDITION TO VERY
STRONG STRAIGHT LINE WINDS AHEAD OF THE STORM.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR NORTH CENTRAL
AND EASTERN COLORADO UNTIL 900PM MDT.
BOODA
LAT...LON 4018 10354 4014 10405 4051 10412 4054 10383What 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, Jul 25, 3:00 PM MDT, 3 hours 12 minutes before
COZALL-260300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 300 PM MDT MON JUL 25 1994 ...SEVERE THUNDERSTORM WATCH UNTIL 9 PM MDT FOR MUCH OF NORTHEAST COLORADO... THE NATIONAL SEVERE STORMS FORECAST CENTER HAS ISSUED A SEVERE THUNDERSTORM WATCH VALID UNTIL 9 PM TONIGHT FOR THE FOLLOWING COUNTIES OF NORTHEAST COLORADO... EASTERN LARIMER...ADAMS...ARAPAHOE...EASTERN BOULDER...DENVER...EASTERN DOUGLAS...LOGAN...MORGAN..PHILLIPS...SEDGWICK...WASHINGTON...WELD...AND YUMA. CITIES AND TOWNS INCLUDED IN THE WATCH AREA INCLUDE... METRO DENVER...LONGMONT...FORT COLLINS...LOVELAND...GREELEY...FORT MORGAN...AKRON...STERLING...JULESBURG...AND WRAY. A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA. STORMS MAY PRODUCE LARGE HAIL...STRONG WINDS IN EXCESS OF 60 MPH...FREQUENT LIGHTNING...AND HEAVY RAIN. IF YOU LIVE IN THE WATCH AREA...WATCH FOR THREATENING WEATHER AND LISTEN TO NOAA WEATHER RADIO AND LOCAL MEDIA FOR LATER STATEMENTS AND POSSIBLE WARNING. CUOCO
Special weather statement, Jul 25, 3:03 PM MDT, 3 hours 9 minutes before
COZALL-260300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 300 PM MDT MON JUL 25 1994 ...SEVERE THUNDERSTORM WATCH UNTIL 9 PM MDT FOR MUCH OF NORTHEAST COLORADO... THE NATIONAL SEVERE STORMS FORECAST CENTER HAS ISSUED A SEVERE THUNDERSTORM WATCH VALID UNTIL 9 PM TONIGHT FOR THE FOLLOWING COUNTIES OF NORTHEAST COLORADO... EASTERN LARIMER...ADAMS...ARAPAHOE...EASTERN BOULDER...DENVER...EASTERN DOUGLAS...LOGAN...MORGAN..PHILLIPS...SEDGWICK...WASHINGTON...WELD...AND YUMA. CITIES AND TOWNS INCLUDED IN THE WATCH AREA INCLUDE... METRO DENVER...LONGMONT...FORT COLLINS...LOVELAND...GREELEY...FORT MORGAN...AKRON...STERLING...JULESBURG...AND WRAY. A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA. STORMS MAY PRODUCE LARGE HAIL...STRONG WINDS IN EXCESS OF 60 MPH...FREQUENT LIGHTNING...AND HEAVY RAIN. IF YOU LIVE IN THE WATCH AREA...WATCH FOR THREATE NING WEATHER AND LISTEN TO NOAA WEATHER RADIO AND LOCAL MEDIA FOR LATER STATEMENTS AND POSSIBLE WARNING. CUOCO
Special weather statement, Jul 25, 4:04 PM MDT, 2 hours 8 minutes before
COZ042-252300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 405 PM MDT MON JUL 25 1994 ...STRONG THUNDERSTORMS MOVING INTO NORTHEAST WELD COUNTY... AT 358 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A PAIR OF STRONG THUNDERSTORMS IN EXTREME SOUTHEAST WYOMING AND NORTHEAST WELD COUNTY. ONE STORM WAS 6 MILES NORTHEAST OF HEREFORD AND THE OTHER WAS 15 MILES NORTH OF STONEHAM. THESE STORMS WERE MOVING SOUTHEAST AT 15 MPH. PEOPLE IN NORTHEAST WELD COUNTY INCLUDING RESIDENTS OF GROVER... HEREFORD...KEOTA AND STONEHAM CAN EXPECT BRIEF HEAVY RAIN...GUSTY WINDS...POSSIBLE HAIL AND DANGEROUS LIGHTNING THROUGH 445 PM. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR NORTH CENTRAL AND EASTERN COLORADO UNTIL 900PM MDT. DANKERS LAT...LON 4058 10365 4056 10423 4115 10438 4109 10363
Special weather statement, Jul 25, 4:05 PM MDT, 2 hours 7 minutes before
COZ042-252300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 405 PM MDT MON JUL 25 1994 ...STRONG THUNDERSTORMS MOVING INTO NORTHEAST WELD COUNTY... AT 358 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A PAIR OF STRONG THUNDERSTORMS IN EXTREME SOUTHEAST WYOMING AND NORTHEAST WELD COUNTY. ONE STORM WAS 6 MILES NORTHEAST OF HEREFORD AND THE OTHER WAS 15 MILES NORTH OF STONEHAM. THESE STORMS WERE MOVING SOUTHEAST AT 15 MPH. PEOPLE IN NORTHEAST WELD COUNTY INCLUDING RESIDENTS OF GROVER... HEREFORD...KEOTA AND STONEHAM CAN EXPECT BRIEF HEAVY RAIN...GUSTY WINDS...POSSIBLE HAIL AND DANGEROUS LIGHTNING THROUGH 445 PM. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR NORTH CENTRAL AND EASTERN COLORADO UNTIL 900PM MDT. DANKERS LAT...LON 4058 10365 4056 10423 4115 10438 4109 10363
The office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 25, 6:14 PM MDT | Severe Thunderstorm Warning | BOU | Morgan, Washington | 31 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.