Alert archive / Colorado / Tornado Warnings in 1996
Tornado Warning 56, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this tornado warning at Jul 13, 1996, 9:05 PM MDT for Weld County, Colorado. It was in force for 40 min. 2 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Jul 13, 1996, 9:05 PM MDT (03:05 UTC)
- Expired
- Jul 13, 1996, 9:45 PM MDT
- In force
- 40 min
- Issued by
- NWS Denver/Boulder, CO
- Area
- Whole counties
County Weld County, CO
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 13, 9:33 PM MDT | Thunderstorm Wind 52 | Nunn, CO | |
| Jul 13, 9:44 PM MDT | Thunderstorm Wind 61 | Nunn, CO |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The nearest sounding before it
Denver, CO (KDNR), launched 00:00Z, 3.1 hours before the alert went out and 125 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
- 1605 J/kg
- Mixed-layer CIN
- -40 J/kg
- Mixed-layer LCL
- 1342 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 79 m²/s²
- 0-3 km storm-relative helicity
- 298 m²/s²
- Significant tornado parameter
- 0.9
- Supercell composite
- 7.1
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KDEN 140308
TORDEN
COC123-140345-
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DENVER CO
905 PM MDT SAT JUL 13 1996
THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A TORNADO WARNING
EFFECTIVE UNTIL 945 PM MDT FOR PEOPLE IN THE FOLLOWING COUNTIES
IN NORTHEAST COLORADO
NORTHWESTERN WELD
INCLUDING THE FOLLOWING LOCATIONS
HEREFORD...PURCELL AND ROCKPORT
AT 901 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
THUNDERSTORM WITH A POSSIBLE TORNADO 12 MILES NORTHEAST OF
ROCKPORT...OR ABOUT 40 MILES NORTHEAST OF FORT COLLINS.
THE STORM WAS MOVING SOUTH-SOUTHEAST AT 25 TO 30 MILES PER HOUR.
THIS STORM HAS PRODUCED TORDADOES JUST NORTH OF THE WARNING AREA IN
LARAMIE COUNTY WYOMING...AS WELL AS 1 1/2 INCH DIAMETER HAIL AND
EXTREMELY HEAVY RAINFALL.
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.
RJK
LAT...LON 4076 10422 4068 10439 4063 10455 4063 10473
4079 10478 4098 10484 4100 10455 4099 10429
$What 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 13, 6:18 PM MDT, 2 hours 47 minutes before
COZ041-046-140100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 620 PM MDT SAT JUL 13 1996 ...THUNDERSTORMS CONTINUING IN EASTCENTRAL ELBERT COUNTY... AT 6:22 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THUNDERSTORMS CONTINUING IN EASTCENTRAL ELBERT COUNTY...INCLUDING THE TOWNS OF AGATE...MATHESON...AND SIMLA. OVER THE PAST 20 MINUTES THESE THUNDERSTORMS HAVE DECREASED IN INTENSITY BUT ARE STILL CAPABLE OF PRODUrCING HEAVY RAINS...SMALL HAIL...AND GUSTY WINDS. THESE STORMS WERE MOVING SOUTH-SOUTHEASTWARD AT 20 TO 25 MPH. A TORNADO WATCH REMAINS IN EFFECT FOR NORTH CENTRAL AND EASTERN COLORADO UNTIL 900 PM MDT. RJK
Special weather statement, Jul 13, 8:03 PM MDT, 1 hour 2 minutes before
COZALL-140300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 8 PM MDT SAT JUL 13 1996 ...TORNADO WATCH CANCELLED FOR I-25 CORRIDOR AND NEARBY COUNTIES... THE TORNADO WATCH HAS BEEN CANCELLED FOR THE FOLLOWING COUNTIES... EASTERN FREMONT...TELLER...EL PASO...LARIMER...ADAMS...ARAPAHOE... BOULDER....DENVER...DOUGLAS...JEFFERSON...WESTERN WELD...PUEBLO AND CROWLEY. THE TRHEAT OF SEVERE WEATHER IS PAST FOR ALL COMMUNITIES ALONG I-25 INCLUDING DENVER...COLORADO SPRINGS AND PUBELO AS WELL AS THE TOWNS OF GREELEY...FORT COLLINS AND BOULDER. THE TORNADO WATCH DOES CONTINUE UNTIL 9 PM MDT FOR THE FOLLOWING COUNTIES...CHEYENNE...ELBERT...KIT CARSON...LINCOLN...CENTRAL AND EASTERN WELD...LOGAN...MORGAN...PHILLIPS...SEDGWICK...WASHINGTON AND YUMA. END...BOODA...WSFO DENVER
Special weather statement, Jul 13, 8:15 PM MDT, 50 minutes before
COZ042-048-140245- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 810 PM MDT SAT JUL 13 1996 ...INTENSE THUNDERSTORM HEADING INTO WELD AND LOGAN COUNTIES... AT 810 PM MDT RADAR SHOWED AN INTENSE THUNDERSTORM MOVING ACROSS THE NORTHERN COLORADO BORDER INTO NORTHEASTERN WELD AND NORTHWESTERN LOGAN COUNTIES. THIS THUNDERSTORM HAS WEKEANED IN THE PAST 30 MINUTES BUT DID PRODUCE A TORNADO AND LARGE HAIL EARLIER WHILE IN WYOMING. THE THUNDERSTORM WAS MOVING SOUTHEAST ABOUT 30 MPH AND WILL PASS OVER OR NEAR THE FOLLOWING LOCATIONS...LOGAN CORNERS...NORTH STERLING RESERVOIR...STERLING AND WESTPLAINS. THIS THUNDERSTORM IS STILL QUITE POTENT AND MAY PRODUCE MARBLE OR LARGER SIZE HAIL ALONG WITH HEAVY RAIN. ANYONE IN THESE AREAS SHOULD BE ALERT AND MOVE INDOORS IF THIS THUNDERSTORM APPROACHES. PROTECT VEHICLES FROM HAIL WHICH COULD BY PUTTING THEM UNDER COVER END...BOODA...WSFO DENVER
Special weather statement, Jul 13, 8:20 PM MDT, 45 minutes before
COZ042-048-140245- SPECIAL WEATHER STATEMENT...CORRECTION NATIONAL WEATHER SERVICE DENVER CO 820 PM MDT SAT JUL 13 1996 ...INTENSE THUNDERSTORM HEADING INTO WELD AND LOGAN COUNTIES... AT 810 PM MDT RADAR SHOWED AN INTENSE THUNDERSTORM MOVING ACROSS THE NORTHERN COLORADO BORDER INTO NORTHEASTERN WELD AND NORTHWESTERN LOGAN COUNTIES. THIS THUNDERSTORM HAS WEKEANED IN THE PAST 30 MINUTES BUT DID PRODUCE A TORNADO AND LARGE HAIL EARLIER WHILE IN WYOMING. THE THUNDERSTORM WAS MOVING SOUTHEAST ABOUT 30 MPH AND WILL PASS OVER OR NEAR THE FOLLOWING LOCATIONS...LOGAN CORNERS...NORTH STERLING RESERVOIR...STERLING AND WESTPLAINS. THIS THUNDERSTORM IS STILL QUITE POTENT AND MAY PRODUCE MARBLE OR LARGER SIZE HAIL ALONG WITH HEAVY RAIN. ANYONE IN THESE AREAS SHOULD BE ALERT AND MOVE INDOORS IF THIS THUNDERSTORM APPROACHES. PROTECT VEHICLES FROM HAIL BY PUTTING THEM UNDER COVER. END...BOODA...WSFO DENVER
Special weather statement, Jul 13, 8:38 PM MDT, 27 minutes before
COZ036-140600- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER COLORADO 841 PM MDT SAT JUL 13 1996 THE NATIONAL WEATHER SERVICE IN DENVER IS CANCELLING THE FLASH FLOOD WATCH THAT WAS IN EFFECT FOR SOUTHERN AND WESTERN JEFFERSON COUNTY. RAINFALL IS NO LONGER EXPECTED OVER THE WATCH AREA THIS EVENING. EARLIER THIS AFTERNOON VERY WEAK SHOWERS PUSHED ACROSS SOUTHERN JEFFERSON COUNTY DROPPING LESS THEN ONE TENTH OF AN INCH OF RAIN. SUNDAY'S FORECAST INDICATES MORE SHOWERS AND THUNDERSTORMS POSSIBLE FOR THE FOOTHILLS INCLUDING THE SOUTHERN JEFFERSON COUNTY AREA. RJK
The office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 13, 6:34 PM MDT | Severe Thunderstorm Warning | BOU | Elbert | 26 min |
| Jul 13, 6:52 PM MDT | Severe Thunderstorm Warning | BOU | Logan | 53 min |
| Jul 13, 9:45 PM MDT | Tornado Warning | BOU | Larimer, Weld | 35 min |
| Jul 13, 10:18 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Morgan, Weld | 27 min |
| Jul 13, 10:37 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Morgan, Washington | 53 min |
| Jul 13, 10:44 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Arapahoe | 31 min |
| Jul 13, 10:44 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 31 min |
| Jul 13, 10:56 PM MDT | Tornado Warning | BOU | Adams, Arapahoe | 34 min |
| Jul 13, 11:33 PM MDT | Severe Thunderstorm Warning | BOU | Arapahoe, Elbert, Lincoln | 27 min |
| Jul 13, 11:55 PM MDT | Severe Thunderstorm Warning | BOU | Elbert, Lincoln | 40 min |
| Jul 14, 12:26 AM MDT | Severe Thunderstorm Warning | BOU | Elbert, Lincoln | 34 min |
| Jul 14, 1:04 AM MDT | Severe Thunderstorm Warning | BOU | Elbert, Lincoln | 41 min |
Nearby
Tornado Warnings in Colorado, 1996Every tornado warning in 1996Tornadoes in 1996
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.