Alert archive / Colorado / Tornado Warnings in 1993
Tornado Warning 23, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this tornado warning at Jul 19, 1993, 3:37 PM MDT for Arapahoe County, Colorado. It was in force for 38 min.
The area
The counties it named.
The facts
- Issued
- Jul 19, 1993, 3:37 PM MDT (21:37 UTC)
- Expired
- Jul 19, 1993, 4:15 PM MDT
- In force
- 38 min
- Issued by
- NWS Denver/Boulder, CO
- Area
- Whole counties
County Arapahoe County, CO
The nearest sounding before it
Denver, CO (KDEN), launched 12:00Z, 9.6 hours before the alert went out and 98 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
- 47 J/kg
- Mixed-layer CIN
- -327 J/kg
- Mixed-layer LCL
- 1404 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 10 m²/s²
- 0-3 km storm-relative helicity
- -51 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 192138
TORDEN
COC005-192215-
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DENVER CO
337 PM MDT MON JUL 19 1993
THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A TORNADO
WARNING EFFECTIVE UNTIL 415 PM MDT FOR PEOPLE IN THE FOLLOWING
COUNTIES
IN NORTHEASTERN COLORADO
CENTRAL ARAPAHOE
INCLUDING THE FOLLOWING LOCATIONS
COUNTRY GARDENS AND STRASBURG
AT 337 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
A POSSIBLE TORNADO 7 MILES WEST OF COUNTRY GARDENS ...OR ABOUT
26 MILES EAST OF DENVER.
THE STORM WAS MOVING TO THE EAST NORTHEAST ABOUT 20 MPH.
A TORNADO WATCH IS IN EFFECT FOR MUCH OF NORTHEAST COLORADO UNTIL 8PM
MDT.
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 RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
FORECAST OFFICE IN DENVER.
LAT...LON 3959 10420 3960 10451 3970 10451 3974 10426What 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 19, 2:15 PM MDT, 1 hour 22 minutes before
COZ011-012-013-192100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 215 PM MDT MONDAY JULY 19 1993 ...THUNDERSTORMS DEVELOPING ALONG THE FRONT RANGE... RADAR SHOWS THUNDERSTORMS FORMING OVER THE FRONT RANGE FOOTHILLS WITH THE STRONGEST THUNDERSTORM IN CENTRAL JEFFERSON COUNTY. THIS THUNDERSTORM IS MOVING EAST ABOUT 20 MPH AND WAS LOCATED ABOUT 5 MILES SOUTHEAST OF TINYTOWN OR ABOUT 35 MILES SOUTHWEST OF DENVER. ANOTHER THUNDERSTORM WAS LOCATED IN THE TOWN OF ROLLIINSVILLE ABOUT 50 MILES NORTHWEST OF DENVER. THIS THUNDERSTORM WAS MOVING TO THE EAST NORTHEAST ABOUT 15 TO 20 MPH. THUNDERSTORMS ARE ALSO EXPECTED TO FORM JUST EAST OF DENVER IN THE WATKINS AND BENNETT AREA BETWEEN 3 AND 4 PM AS A BAND OF EASTERLY WINDS HAS COLLIDED WITH SOME WESTERLY WINDS IN THAT AREA AND WILL PROVIDE THE FINAL AMOUNT OF ENERGY TO SPAWN SOME THUNDERSTORMS THERE. ALL THESE THUNDERSTORMS WILL BE CAPABLE OF PRODUCING HEAVY RAIN AND HAIL. SOME HAIL COULD BE AN INCH OR MORE IN DIAMETER ALTHOUGH MOST OF THE HAIL WILL BE OF PEA TO MARBLE SIZE. RAINFALL AMOUNTS OF UP TO 2 INCHES IS POSSIBLE IN AN HOUR IN SOME AREAS. A TORNADO WATCH COVERS MUCH OF NORTHEAST COLORADO UNTIL 8 PM MDT SO ALL PEOPLE IN NORTHEAST COLORADO SHOULD MONITOR LOCAL NEWS MEDIA OR NOAA WEATHER RADIO FOR THE LATEST WEATHER BULLETINS AND FORECASTS. MOVE INDOORS IF THREATENING WEATHER APPROACHES. MOTORISTS BE ALERT FOR WATER PONDING ON ROADWAYS DUE TO HEAVY RAIN. BOODA
Special weather statement, Jul 19, 2:15 PM MDT, 1 hour 22 minutes before
COZ011-012-013-192100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 215 PM MDT MONDAY JULY 19 1993 ...THUNDERSTORMS DEVELOPING ALONG THE FRONT RANGE... RADAR SHOWS THUNDERSTORMS FORMING OVER THE FRONT RANGE FOOTHILLS WITH THE STRONGEST THUNDERSTORM IN CENTRAL JEFFERSON COUNTY. THIS THUNDERSTORM IS MOVING EAST ABOUT 20 MPH AND WAS LOCATED ABOUT 5 MILES SOUTHEAST OF TINYTOWN OR ABOUT 35 MILES SOUTHWEST OF DENVER. ANOTHER THUNDERSTORM WAS LOCATED IN THE TOWN OF ROLLIINSVILLE ABOUT 50 MILES NORTHWEST OF DENVER. THIS THUNDERSTORM WAS MOVING TO THE EAST NORTHEAST ABOUT 15 TO 20 MPH. THUNDERSTORMS ARE ALSO EXPECTED TO FORM JUST EAST OF DENVER IN THE WATKINS AND BENNETT AREA BETWEEN 3 AND 4 PM AS A BAND OF EASTERLY WINDS HAS COLLIDED WITH SOME WESTERLY WINDS IN THAT AREA AND WILL PROVIDE THE FINAL AMOUNT OF ENERGY TO SPAWN SOME THUNDERSTORMS THERE. ALL THESE THUNDERSTORMS WILL BE CAPABLE OF PRODUCING HEAVY RAIN AND HAIL. SOME HAIL COULD BE AN INCH OR MORE IN DIAMETER ALTHOUGH MOST OF THE HAIL WILL BE OF PEA TO MARBLE SIZE. RAINFALL AMOUNTS OF UP TO 2 INCHES IS POSSIBLE IN AN HOUR IN SOME AREAS. A TORNADO WATCH COVERS MUCH OF NORTHEAST COLORADO UNTIL 8 PM MDT SO ALL PEOPLE IN NORTHEAST COLORADO SHOULD MONITOR LOCAL NEWS MEDIA OR NOAA WEATHER RADIO FOR THE LATEST WEATHER BULLETINS AND FORECASTS. MOVE INDOORS IF THREATENING WEATHER APPROACHES. MOTORISTS BE ALERT FOR WATER PONDING ON ROADWAYS DUE TO HEAVY RAIN. BOODA
Special weather statement, Jul 19, 2:53 PM MDT, 44 minutes before
COZ011-192130- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 250 PM MDT MONDAY JULY 19 1993 ...THUNDERSTORMS IN JEFFERSON AND DOUGLAS COUNTIES... AT 250 PM MDT RADAR SHOWED TWO VERY STRONG THUNDERSTORMS. ONE THUNDERSTORM WAS LOCATED IN JEFFERSON COUNTY ABOUT 7 MILES SOUTH OF CONIFER OR 45 MILES SOUTHWEST OF DENVER. THIS THUNDERSTORM WAS MOVING TO THE EAST AT 15 TO 20 MPH. AN EVEN STRONGER THUNDERSTORM WAS LOCATED IN DOUGLAS COUNTY ABOUT 2 MILES WEST SOUTHWEST OF SEDALIA OR 30 MILES SOUTH OF DENVER. THIS THUNDERSTORM WAS ALSO MOVING EAST ABOUT 20 MPH. HAM RADIO OPERATORS REPORT HEAVY RAIN WITH THIS THUNDERSTORM WITH AMOUNTS ESTIMATED OF AT LEAST 1 INCH PER HOUR. THERE IS SOME LOCAL STREET FLOODING REPORTED IN DOUGLAS COUNTY IN THE VICINITY OF I-25 AND LINCOLN AVENUES. MOTORISTS TRAVELLING SOUTH OF DENVER ON I-25 TOWARDS CASTLE ROCK SHOULD BE DELAY TRAVEL UNTIL THE RAIN SUBSIDES OR FIND ALTERNATE ROUTES. THIS THUNDERSTORM IS EXPECTED TO CONTINUE EAST AND COULD CAUSE HEAVY RAIN AND POSSIBLE STREET FLOODING ON PARKER ROAD...HIGHWAY 83...SOUTH OF CHERRY CREEK RESERVOIR TO THE PARKER AREA BY 330 PM MDT. A TORNADO WATCH COVERS MUCH OF NORTHEAST COLORADO UNTIL 8 PM MDT SO ALL PEOPLE IN NORTHEAST COLORADO SHOULD MONITOR LOCAL NEWS MEDIA OR NOAA WEATHER RADIO FOR THE LATEST WEATHER BULLETINS AND FORECASTS. MOVE INDOORS IF THREATENING WEATHER APPROACHES. BOODA
Special weather statement, Jul 19, 2:53 PM MDT, 44 minutes before
COZ011-192130- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 250 PM MDT MONDAY JULY 19 1993 ...THUNDERSTORMS IN JEFFERSON AND DOUGLAS COUNTIES... AT 250 PM MDT RADAR SHOWED TWO VERY STRONG THUNDERSTORMS. ONE THUNDERSTORM WAS LOCATED IN JEFFERSON COUNTY ABOUT 7 MILES SOUTH OF CONIFER OR 45 MILES SOUTHWEST OF DENVER. THIS THUNDERSTORM WAS MOVING TO THE EAST AT 15 TO 20 MPH. AN EVEN STRONGER THUNDERSTORM WAS LOCATED IN DOUGLAS COUNTY ABOUT 2 MILES WEST SOUTHWEST OF SEDALIA OR 30 MILES SOUTH OF DENVER. THIS THUNDERSTORM WAS ALSO MOVING EAST ABOUT 20 MPH. HAM RADIO OPERATORS REPORT HEAVY RAIN WITH THIS THUNDERSTORM WITH AMOUNTS ESTIMATED OF AT LEAST 1 INCH PER HOUR. THERE IS SOME LOCAL STREET FLOODING REPORTED IN DOUGLAS COUNTY IN THE VICINITY OF I-25 AND LINCOLN AVENUES. MOTORISTS TRAVELLING SOUTH OF DENVER ON I-25 TOWARDS CASTLE ROCK SHOULD BE DELAY TRAVEL UNTIL THE RAIN SUBSIDES OR FIND ALTERNATE ROUTES. THIS THUNDERSTORM IS EXPECTED TO CONTINUE EAST AND COULD CAUSE HEAVY RAIN AND POSSIBLE STREET FLOODING ON PARKER ROAD...HIGHWAY 83...SOUTH OF CHERRY CREEK RESERVOIR TO THE PARKER AREA BY 330 PM MDT. A TORNADO WATCH COVERS MUCH OF NORTHEAST COLORADO UNTIL 8 PM MDT SO ALL PEOPLE IN NORTHEAST COLORADO SHOULD MONITOR LOCAL NEWS MEDIA OR NOAA WEATHER RADIO FOR THE LATEST WEATHER BULLETINS AND FORECASTS. MOVE INDOORS IF THREATENING WEATHER APPROACHES. BOODA
Special weather statement, Jul 19, 3:13 PM MDT, 24 minutes before
COZ011-192130- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 310 PM MDT MONDAY JULY 19 1993 ...HAIL IN THE TOWN OF PARKER... A VERY STRONG THUNDERSTORM MOVING ACROSS NORTHERN DOUGLAS COUNTY HAS DUMPED HEAVY RAIN AND HAIL. PEA SIZE HAIL WAS REPORTED IN THE TOWN OF PARKER...ABOUT 20 MILES SOUTH SOUTHEAST OF DEVNER AT 305 PM MDT. SMALL HAIL AND STANDING WATER HAS SLOWED OR HALTED TRAFFIC ON I-25 BETWEEN THE TOWNS OF SURREY RIDGE TO LINCOLN AVE IN NORTHERN DOUGLAS COUNTY. THIS THUNDERSTORM IS THE STRONGEST PART OF A MASS OF THUNDERSTORMS THAT IS FORMING ON A LINE THAT EXTENDS FROM NEAR THE TOWN OF WATKINS TO 45 MILES SOUTHWEST OF DENVER ON THE JEFFERSON-DOUGLAS COUNTY LINES. ALL OF THESE THUNDERSTORMS WILL BE CAPABLE OF PRODUCING HEAVY RAIN AND HAIL. UP TO 2 INCHES OF RAIN COULD FALL IN AN HOUR. A TORNADO WATCH COVERS MUCH OF NORTHEAST COLORADO UNTIL 8 PM MDT SO ALL PEOPLE IN NORTHEAST COLORADO SHOULD MONITOR LOCAL NEWS MEDIA OR NOAA WEATHER RADIO FOR THE LATEST WEATHER BULLETINS AND FORECASTS. MOVE INDOORS IF THREATENING WEATHER APPROACHES. BOODA
Special weather statement, Jul 19, 3:13 PM MDT, 24 minutes before
COZ011-192130- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 310 PM MDT MONDAY JULY 19 1993 ...HAIL IN THE TOWN OF PARKER... A VERY STRONG THUNDERSTORM MOVING ACROSS NORTHERN DOUGLAS COUNTY HAS DUMPED HEAVY RAIN AND HAIL. PEA SIZE HAIL WAS REPORTED IN THE TOWN OF PARKER...ABOUT 20 MILES SOUTH SOUTHEAST OF DEVNER AT 305 PM MDT. SMALL HAIL AND STANDING WATER HAS SLOWED OR HALTED TRAFFIC ON I-25 BETWEEN THE TOWNS OF SURREY RIDGE TO LINCOLN AVE IN NORTHERN DOUGLAS COUNTY. THIS THUNDERSTORM IS THE STRONGEST PART OF A MASS OF THUNDERSTORMS THAT IS FORMING ON A LINE THAT EXTENDS FROM NEAR THE TOWN OF WATKINS TO 45 MILES SOUTHWEST OF DENVER ON THE JEFFERSON-DOUGLAS COUNTY LINES. ALL OF THESE THUNDERSTORMS WILL BE CAPABLE OF PRODUCING HEAVY RAIN AND HAIL. UP TO 2 INCHES OF RAIN COULD FALL IN AN HOUR. A TORNADO WATCH COVERS MUCH OF NORTHEAST COLORADO UNTIL 8 PM MDT SO ALL PEOPLE IN NORTHEAST COLORADO SHOULD MONITOR LOCAL NEWS MEDIA OR NOAA WEATHER RADIO FOR THE LATEST WEATHER BULLETINS AND FORECASTS. MOVE INDOORS IF THREATENING WEATHER APPROACHES. BOODA
The office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 18, 6:06 PM MDT | Severe Thunderstorm Warning | BOU | Phillips | 24 min |
| Jul 18, 6:28 PM MDT | Severe Thunderstorm Warning | BOU | Phillips, Yuma | 32 min |
| Jul 19, 4:40 PM MDT | Severe Thunderstorm Warning | BOU | Morgan | 50 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.