Alert archive / Colorado / Severe Thunderstorm Warnings in 1996
Severe Thunderstorm Warning 149, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this severe thunderstorm warning at Jul 13, 1996, 11:55 PM MDT for Elbert County, Lincoln County, Colorado. It was in force for 40 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jul 13, 1996, 11:55 PM MDT (05:55 UTC)
- Expired
- Jul 14, 1996, 12:35 AM MDT
- In force
- 40 min
- Issued by
- NWS Denver/Boulder, CO
- Area
- Whole counties
Counties Elbert County, CO, Lincoln County, CO
The radar
The Pueblo radar (KPUX), 81 km from the middle of the area, began a volume at 05:55 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 (KDNR), launched 00:00Z, 5.9 hours before the alert went out and 96 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
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, Jul 13, 6:18 PM MDT, 5 hours 37 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, 3 hours 52 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, 3 hours 40 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, 3 hours 35 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, 3 hours 17 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
Special weather statement, Jul 13, 9:27 PM MDT, 2 hours 28 minutes before
COZALL-140400- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 920 PM MDT SAT JUL 13 1996 ...TORNADO WATCH EXPIRES FOR REST OF COLORADO... THE TORNADO WATCH HAS EXPIRED AT 9 PM MDT FOR THE REST OF EASTERN COLORADO THIS EVENING. ALTHOUGH THE TORNADO WATCH HAS EXPIRED...PEOPLE IN NORTHWEST WELD COUNTY ARE UNDER A TORNADO WARNING UNTIL 945 PM MDT DUE TO A SEVERE THUNDERSTORM THAT HAS ENTERED THE STATE FROM WYOMING. THIS WARNING INCLUDES THE TOWNS OF HEREFORD...PURCELL AND ROCKPORT. END...BOODA...WSFO DENVER
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, 9:05 PM MDT | Tornado Warning | BOU | Weld | 40 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 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
Severe Thunderstorm Warnings in Colorado, 1996Every severe thunderstorm warning 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.