Alert archive / Colorado / Severe Thunderstorm Warnings in 1996
Severe Thunderstorm Warning 241, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this severe thunderstorm warning at Aug 3, 1996, 4:19 PM MDT for Washington County, Colorado. It was in force for 41 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
- Aug 3, 1996, 4:19 PM MDT (22:19 UTC)
- Expired
- Aug 3, 1996, 5:00 PM MDT
- In force
- 41 min
- Issued by
- NWS Denver/Boulder, CO
- Area
- Whole counties
County Washington County, CO
The radar
The Denver radar (KFTG), 117 km from the middle of the area, began a volume at 22:22 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
N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 10.3 hours before the alert went out and 255 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
- 376 J/kg
- Mixed-layer CIN
- -256 J/kg
- Mixed-layer LCL
- 1953 m above ground
- 0-6 km bulk shear
- 6 kt
- 0-1 km storm-relative helicity
- 287 m²/s²
- 0-3 km storm-relative helicity
- 183 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.1
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, Aug 3, 11:38 AM MDT, 4 hours 41 minutes before
COZ030-032>050-040600- SIGNIFICANT WEATHER OUTLOOK FOR NORTHEAST AND NORTH CENTRAL COLORADO NATIONAL WEATHER SERVICE DENVER CO 1140 AM MDT SAT AUG 3 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 ATMOSPHERE HAS BECOME A BIT MORE STABLE OVER EASTERN COLORADO SINCE YESTERDAY. THERE HAS BEEN SOME WARMING AT MOUNTAINTOP LEVEL WHILE TEMPERATURES ARE COOLER THIS MORNING DUE TO CLOUD COVER. THE EDGE OF THE DEEP LOW LEVEL MOISTURE HAS ALSO MOVED FURTHER EAST... FROM THE EASTERN EDGE OF LINCOLN AND WASHINGTON COUNTIES THROUGH HAXTUN. THUNDERSTORMS WILL DEVELOP OVER THE MOUNTAINS BY MIDAFTERNOON AND DRIFT EAST. THESE WILL MOST LIKELY WEAKEN AS THEY MOVE OVER THE FRONT RANGE CITIES...BUT COULD PRODUCE WIND GUSTS TO 50 MPH AND SMALL HAIL. DAMAGING WIND GUSTS FROM THESE STORMS IS THE MAIN WEATHER THREAT TODAY. IN THE DEEP MOISTURE ALONG THE EASTERN BORDER THERE IS A SMALL THREAT FOR SEVERE STORMS THIS EVENING...BUT THE LIKELY AREAS FOR DEVELOPMENT ARE NORTH AND EAST OF COLORADO. SPOTTER ACTIVATION SHOULD NOT BE NEEDED TODAY. GIMMESTAD
The office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 2, 8:01 PM MDT | Severe Thunderstorm Warning | BOU | Elbert | 29 min |
| Aug 2, 10:23 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 37 min |
| Aug 3, 3:21 PM MDT | Severe Thunderstorm Warning | BOU | Elbert, Lincoln | 39 min |
| Aug 3, 4:03 PM MDT | Severe Thunderstorm Warning | BOU | Lincoln | 42 min |
| Aug 3, 4:57 PM MDT | Severe Thunderstorm Warning | BOU | Washington | 33 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.