Alert archive / Colorado / Severe Thunderstorm Warnings in 1996
Severe Thunderstorm Warning 156, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this severe thunderstorm warning at Jul 20, 1996, 7:32 PM MDT for Elbert County, Lincoln County, Colorado. It was in force for 28 min. 1 report 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 20, 1996, 7:32 PM MDT (01:32 UTC)
- Expired
- Jul 20, 1996, 8:00 PM MDT
- In force
- 28 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 01:34 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 20, 8:00 PM MDT | Hail 1.75 | Genoa, 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, 1.5 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
- 7 J/kg
- Mixed-layer CIN
- -32 J/kg
- Mixed-layer LCL
- 3778 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- -15 m²/s²
- 0-3 km storm-relative helicity
- 26 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, Jul 20, 6:50 PM MDT, 42 minutes before
COZ046-047-210115- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 635 PM MDT SAT JUL 20 1996 ...STRONG THUNDERSTORMS DEVELOPING IN CENTRAL LINCOLN COUNTY... AT 640 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED ISOLATED...BUT STRONG...THUNDERSTORMS DEVELOPING IN CENTRAL LINCOLN COUNTY. THE STRONGEST STORMS WERE LOCATED 21 MILES SOUTH OF HUGO...NEAR THE COUNTY LINE...ANOTHER JUST TO THE NORTH OF PUNKIN CENTER OR ABOUT 19 MILES SOUTH OF LIMON AND YET ANOTHER 12 MILES EAST OF HUGO OR 24 MILES SOUTHEAST OF LIMON THESE STORMS WERE NEARLY STATIONARY. LOCALLY HEAVY RAIN...SMALL SMALL HAIL...STRONG GUSTY WINDS AND DANGEROUS LIGHTNING CAN BE EXPECTED WITH THESE STORMS...ALONG WITH SOME MINOR FLOODING. PERSONS IN CENTRAL LINCOLN COUNTY SHOULD REMAIN IN A PLACE OF SAFETY UNTIL THE SEVERE WEATHER PASSES. IF SEVERE WEATHER APPROACHES YOUR AREA...GO INSIDE A STURDY SHELTER AWAY FROM CREEK BEDS AND OTHER B FLOOD-PRONE AREAS. FMC
The office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 20, 7:19 PM MDT | Tornado Warning | BOU | Lincoln | 26 min |
| Jul 20, 7:57 PM MDT | Tornado Warning | BOU | Elbert | 33 min |
| Jul 20, 8:00 PM MDT | Severe Thunderstorm Warning | BOU | Lincoln | 45 min |
| Jul 20, 8:21 PM MDT | Severe Thunderstorm Warning | BOU | Elbert | 24 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.