Alert archive / Colorado / Tornado Warnings in 1993
Tornado Warning 31, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this tornado warning at Jul 21, 1993, 8:30 PM MDT for Washington County, Colorado. It was in force for 30 min.
The area
The counties it named.
The facts
- Issued
- Jul 21, 1993, 8:30 PM MDT (02:30 UTC)
- Expired
- Jul 21, 1993, 9:00 PM MDT
- In force
- 30 min
- Issued by
- NWS Denver/Boulder, CO
- Area
- Whole counties
County Washington County, CO
The nearest sounding before it
Denver, CO (KDEN), launched 00:00Z, 2.5 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
- 3132 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- 9 m²/s²
- 0-3 km storm-relative helicity
- 81 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 220232
TORDEN
COC121-220300-
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DENVER CO
830 PM MDT WED JUL 21 1993
THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A TORNADO WARNING
EFFECTIVE UNTIL 900 PM MDT FOR PEOPLE IN THE FOLLOWING COUNTIES
IN NORTHEASTERN COLORADO
SOUTHERN WASHINGTON
INCLUDING THE FOLLOWING LOCATIONS
ANTON...ARICKAREE SCHOOL...COPE...ELBA...LINDON AND THURMAN
AT 827 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
POSSIBLE TORNADO ABOUT 5 MILES SOUTHWEST OF ANTON...OR ABOUT 39 MILES
NORTHEAST OF LIMON. A HAM RADIO A TORNADO ON THE GROUND AT 829 PM AT
THIS TIME.
THE STORM WAS MOVING EAST AROUND 15 MILES AN HOUR.
MOVE TO A SUBSTANTIAL SHELTER IMMEDIATELY. EVACUATE MOBILE HOMES.
WOLF
LAT...LON 3960 10280 3957 10344 3995 10343 4011 10279What 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 21, 3:40 PM MDT, 4 hours 50 minutes before
COZ011-012-212215- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 340 PM MDT WED JUL 21 1993 ...THUNDERSTORMS DEVELOPING ACROSS PORTIONS OF NORTHEAST COLORADO... AT 340 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR SHOWED THUNDERSTORMS DEVELOPING ACROSS PORTIONS OF NORTHEAST COLORADO. THE STRONGEST STORM WAS LOCATED NEAR THE TOWN OF BYERS OR 30 MILES NORTHWEST OF LIMON. BRIEF HEAVY RAIN...FREQUENT LIGHTNING...AND SMALL HAIL ARE POSSIBLE WITH THIS STORM AND WITH THE OTHER STORMS ACROSS THE REMAINDER OF NORTHEAST COLORADO. CONTINUE TO MONITOR NOAA WEATHER RADIO...COMMERCIAL RADIO...AND/OR TELEVISION FOR FURTHER UPDATES ON THE WEATHER SITUATION ACROSS NORTHEAST COLORADO. HEITKAMP
Special weather statement, Jul 21, 3:40 PM MDT, 4 hours 50 minutes before
COZ011-012-212215- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 340 PM MDT WED JUL 21 1993 ...THUNDERSTORMS DEVELOPING ACROSS PORTIONS OF NORTHEAST COLORADO... AT 340 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR SHOWED THUNDERSTORMS DEVELOPING ACROSS PORTIONS OF NORTHEAST COLORADO. THE STRONGEST STORM WAS LOCATED NEAR THE TOWN OF BYERS OR 30 MILES NORTHWEST OF LIMON. BRIEF HEAVY RAIN...FREQUENT LIGHTNING...AND SMALL HAIL ARE POSSIBLE WITH THIS STORM AND WITH THE OTHER STORMS ACROSS THE REMAINDER OF NORTHEAST COLORADO. CONTINUE TO MONITOR NOAA WEATHER RADIO...COMMERCIAL RADIO...AND/OR TELEVISION FOR FURTHER UPDATES ON THE WEATHER SITUATION ACROSS NORTHEAST COLORADO. HEITKAMP
Special weather statement, Jul 21, 4:38 PM MDT, 3 hours 52 minutes before
COZ011-012-013-212330- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 438 PM MDT WED JUL 21 1993 ...THUNDERSTORMS CONTINUING OVER NORTHEAST COLORADO... NATIONAL WEATHER SERVICE DOPPLER RADAR AT 429 PM INDICATED A LINE OF STRONG THUNDERSTORMS OVER WELD COUNTY FROM GROVER TO NEAR FORT LUPTON... INTO NORTH CENTRAL ADAMS COUNTY ABOUT 5 MILES EAST OF BRIGHTON. ANOTHER STRONG THUNDERSTORM WAS NOTED IN SOUTHWEST DOUGLAS COUNTY. THE STORMS ARE MOVING NORTHEAST AT 20 MILES AN HOUR. THESE STORMS ARE CAPABLE OF PRODUCING HAIL AND STRONG GUSTY WINDS. IF THREATENING WEATHER APPROACHES YOUR LOCATIONS...MOVE INDOORS TO A PLACE OF SAFETY. CONTINUE TO MONITOR NOAA WEATHER RADIO...COMMERCIAL RADIO...AND/OR TELEVISION FOR FURTHER UPDATES ON THE WEATHER SITUATION ACROSS NORTHEAST COLORADO. REMEMBER...A TORNADO WATCH REMAINS IN EFFECT FOR MUCH OF EASTERN COLORADO UNTIL 1100 PM MDT. WOLF
Special weather statement, Jul 21, 4:38 PM MDT, 3 hours 52 minutes before
COZ011-012-013-212330- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 438 PM MDT WED JUL 21 1993 ...THUNDERSTORMS CONTINUING OVER NORTHEAST COLORADO... NATIONAL WEATHER SERVICE DOPPLER RADAR AT 429 PM INDICATED A LINE OF STRONG THUNDERSTORMS OVER WELD COUNTY FROM GROVER TO NEAR FORT LUPTON... INTO NORTH CENTRAL ADAMS COUNTY ABOUT 5 MILES EAST OF BRIGHTON. ANOTHER STRONG THUNDERSTORM WAS NOTED IN SOUTHWEST DOUGLAS COUNTY. THE STORMS ARE MOVING NORTHEAST AT 20 MILES AN HOUR. THESE STORMS ARE CAPABLE OF PRODUCING HAIL AND STRONG GUSTY WINDS. IF THREATENING WEATHER APPROACHES YOUR LOCATIONS...MOVE INDOORS TO A PLACE OF SAFETY. CONTINUE TO MONITOR NOAA WEATHER RADIO...COMMERCIAL RADIO...AND/OR TELEVISION FOR FURTHER UPDATES ON THE WEATHER SITUATION ACROSS NORTHEAST COLORADO. REMEMBER...A TORNADO WATCH REMAINS IN EFFECT FOR MUCH OF EASTERN COLORADO UNTIL 1100 PM MDT. WOLF
The office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 21, 6:00 PM MDT | Tornado Warning | BOU | Washington | 30 min |
| Jul 21, 6:28 PM MDT | Tornado Warning | BOU | Washington | 32 min |
| Jul 21, 7:05 PM MDT | Tornado Warning | BOU | Washington | 25 min |
| Jul 21, 7:28 PM MDT | Tornado Warning | BOU | Washington | 32 min |
| Jul 21, 8:00 PM MDT | Tornado Warning | BOU | Washington | 30 min |
| Jul 21, 8:58 PM MDT | Tornado Warning | BOU | Washington | 32 min |
| Jul 21, 9:28 PM MDT | Tornado Warning | BOU | Washington, Yuma | 32 min |
| Jul 21, 9:59 PM MDT | Tornado Warning | BOU | Washington, Yuma | 31 min |
| Jul 21, 10:30 PM MDT | Tornado Warning | BOU | Yuma | 30 min |
| Jul 21, 11:27 PM MDT | Severe Thunderstorm Warning | BOU | Yuma | 38 min |
| Jul 21, 11:30 PM MDT | Tornado Warning | BOU | Yuma | |
| Jul 22, 5:15 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Morgan | 30 min |
| Jul 22, 5:47 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Morgan, Washington | 28 min |
Nearby
Tornado Warnings in Colorado, 1993Every tornado warning in 1993Tornadoes in 1993
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.