Alert archive / Colorado / Severe Thunderstorm Warnings in 1996
Severe Thunderstorm Warning 76, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this severe thunderstorm warning at Jun 16, 1996, 5:14 PM MDT for Jefferson County, Colorado. It was in force for 31 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
- Jun 16, 1996, 5:14 PM MDT (23:14 UTC)
- Expired
- Jun 16, 1996, 5:45 PM MDT
- In force
- 31 min
- Issued by
- NWS Denver/Boulder, CO
- Area
- Whole counties
County Jefferson County, CO
The radar
The Denver radar (KFTG), 64 km from the middle of the area, began a volume at 23:17 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 12:00Z, 11.2 hours before the alert went out and 176 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
- 1401 m above ground
- 0-6 km bulk shear
- 8 kt
- 0-1 km storm-relative helicity
- -30 m²/s²
- 0-3 km storm-relative helicity
- -21 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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, Jun 16, 11:24 AM MDT, 5 hours 50 minutes before
COZ030-032>050-170600- SIGNIFICANT WEATHER OUTLOOK FOR NORTHEAST AND NORTH CENTRAL COLORADO NATIONAL WEATHER SERVICE DENVER CO 1115 AM MDT SUN JUN 16 1996 THIS OUTLOOK PERTAINS TO THE FOLLOWING COLORADO COUNTIES ADAMS ARAPAHOE BOULDER CLEAR CREEK DENVER DOUGLAS ELBERT GILPIN GRAND JACKSON JEFFERSON LARIMER LINCOLN LOGAN MORGAN PARK PHILLIPS SEDGWICK SUMMIT WASHINGTON WELD SYNOPSIS: THE LOW PRESSURE SYSTEM THAT WAS LOCATED OVER COLORADO ON SATURDAY HAS MOVED NORTHEASTWARD INTO NEBRASKA. THE AIR MASS IS MORE STABLE THAN IT WAS BEFORE THE RAINOUT ON SATURDAY. LEFTOVER LOW LEVEL MOISTURE EXISTS AND SOME THUNDERSTORMS WI8LL DEVELOP ...MAINLY IN THE MOUNTAINS AND FOOTHILLS. ANY THUNDERSTORMS THAT DO DEVELOP ARE NOT EXPECTED TO BE VERY STORNG OR SEVERE. THUS...SPOTTER ACTIVATION IS NOT EXPECTED. IMY
Special weather statement, Jun 16, 3:11 PM MDT, 2 hours 3 minutes before
COZ035-038-039-162115- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 304 PM MDT SUN JUN 16 1996 AT 304 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM ABOUT 10 MILES WEST OF FORT COLLINS. ANOTHER STRONG THUNDERSTORM WAS LOCATED ABOUT 20 MILES NORTH OF FORT COLLINS. THESE STORMS WERE PRODUCING SMALL HAIL...BRIEF HEAVY RAIN...AND GUSTY WINDS UP TO 40 MPH. THE STORMS WERE MOVING SOUTH/SOUTHEAST AT 20 MILES AN HOUR. PERSONS IN OR NEAR FORT COLLINS...BERTHOUD...BUCKHORN MOUNTAIN... DRAKE...JAMESTOWN...LOVELAND...AND LYONS SHOULD MOVE INDOORS WHEN THESE STORMS APPROACH. BARJENBRUCH
Special weather statement, Jun 16, 3:17 PM MDT, 1 hour 57 minutes before
COZ030-032>050-170600- SIGNIFICANT WEATHER OUTLOOK FOR NORTHEAST AND NORTH CENTRAL COLORADO NATIONAL WEATHER SERVICE DENVER CO 315 PM MDT SUN JUN 16 1996 THIS OUTLOOK PERTAINS TO THE FOLLOWING COLORADO COUNTIES ADAMS ARAPAHOE BOULDER CLEAR CREEK DENVER DOUGLAS ELBERT GILPIN GRAND JACKSON JEFFERSON LARIMER LINCOLN LOGAN MORGAN PARK PHILLIPS SEDGWICK SUMMIT WASHINGTON WELD SYNOPSIS: THE LOW PRESSURE SYSTEM THAT WAS LOCATED OVER COLORADO ON SATURDAY HAS MOVED NORTHEASTWARD INTO IOWA. THUNDERSTORMS ARE DEVELOPING THIS AFTERNOON IN THE FOOTHILLS... ESPECIALLY ACROSS LARIMER COUNTY. THESE THUNDERSTORMS WILL CONTINUE TO SLOWLY INTENSIFY AS THEY MOVE SOUTHEASTWARD. THE STORMS...INITIALLY... WILL WEAKEN AS THEY MOVE OUT OF THE FOOTHILLS. ISOLATED SEVERE THUNDERSTORMS ARE POSSIBLE IN AND NEAR THE FOOTHILLS UNTIL 830 PM. THE MAIN THREAT OF SEVERE WEATHER WILL BE HAIL FROM 3/4 TO 1 INCH IN DIAMETER. THE STABLE AIR MASS WILL CAUSE THE THUNDERSTORMS TO WEAKEN BEFORE THEY MOVE VERY FAR EASTWARD ONTO THE PLAINS. IMY
Special weather statement, Jun 16, 5:05 PM MDT, 9 minutes before
COC013-162300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 505 PM MDT SUN JUN 16 1996 ...STRONG THUNDERSTORMS MOVING THROUGH BOULDER AND WELD COUNTIES... AT 502 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED STRONG THUNDERSTORMS FROM BOULDER TO ROLLINSVILLE. OTHER STRONG STORMS WERE LOCATED NEAR BRIGGSDALE IN WELD COUNTY. THESE THUNDERSTORMS WERE LIKELY PRODUCING MARBLE SIZED HAIL...BRIEF HEAVY RAIN...AND WIND GUST:S TO 40 MPH. THE STORMS WERE MOVING SOUTH/SOUTHEAST AT 25 MPH. PERSONS IN WELD...NORTHERN JEFFERSON...AND EASTERN GILPIN COUNTY SHOULD MOVE INDOORS AS THESE STORMS APPROACH YOUR AREA. BARJENBRUCH
The office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 16, 3:41 PM MDT | Severe Thunderstorm Warning | BOU | Larimer | 34 min |
| Jun 16, 3:59 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 31 min |
| Jun 16, 4:12 PM MDT | Severe Thunderstorm Warning | BOU | Boulder | 33 min |
| Jun 16, 5:33 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 42 min |
| Jun 16, 5:52 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Denver | 38 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.