Alert archive / Colorado / Severe Thunderstorm Warnings in 2023
Severe Thunderstorm Warning 255, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this severe thunderstorm warning at Jul 5, 2023, 7:30 PM MDT for Lincoln County, Colorado. It was in force for 30 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 5, 2023, 7:30 PM MDT (01:30 UTC)
- Expired
- Jul 5, 2023, 8:00 PM MDT
- In force
- 30 min
- Issued by
- NWS Denver/Boulder, CO
- Area
- Storm-based polygon
- Hail
- 1.25 in
- Wind
- 60.0 mph
County Lincoln County, CO
The radar
The Pueblo radar (KPUX), 82 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.
The nearest sounding before it
Dodge City, (KDDC), launched 00:00Z, 1.5 hours before the alert went out and 343 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
- 1016 J/kg
- Mixed-layer CIN
- -2 J/kg
- Mixed-layer LCL
- 929 m above ground
- 0-6 km bulk shear
- 52 kt
- 0-1 km storm-relative helicity
- -1 m²/s²
- 0-3 km storm-relative helicity
- 272 m²/s²
- Significant tornado parameter
- 0.4
- Supercell composite
- 1.8
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.
NWS Denver/Boulder, CO wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 5, 5:50 PM MDT, 1 hour 40 minutes earlier.
Area forecast discussion, Jul 5, 5:50 PM MDT, 1 hour 40 minutes before
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</html>Hazardous weather outlook, Jul 5, 11:30 AM MDT, 8 hours before
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Special weather statement, Jul 5, 1:59 PM MDT, 5 hours 31 minutes before
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</html>Special weather statement, Jul 5, 2:52 PM MDT, 4 hours 38 minutes before
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</html>Special weather statement, Jul 5, 3:45 PM MDT, 3 hours 45 minutes before
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</html>The office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 5, 8:04 PM MDT | Special Weather Statement | BOU | Jackson | 26 min |
| Jul 5, 8:08 PM MDT | Special Weather Statement | BOU | Logan | 37 min |
| Jul 5, 8:31 PM MDT | Special Weather Statement | BOU | Grand | 44 min |
| Jul 5, 8:46 PM MDT | Special Weather Statement | BOU | Logan | 44 min |
| Jul 5, 9:05 PM MDT | Areal Flood Advisory | BOU | Larimer | 3 hr |
| Jul 5, 9:36 PM MDT | Dense Fog Advisory | BOU | Adams, Arapahoe, Boulder, Broomfield, Denver, Douglas and 3 more | 11 hr |
| Jul 6, 7:26 AM MDT | Special Weather Statement | BOU | Washington | 49 min |
| Jul 6, 12:43 PM MDT | Special Weather Statement | BOU | Douglas | 32 min |
| Jul 6, 3:31 PM MDT | Special Weather Statement | BOU | Denver | 29 min |
| Jul 6, 3:39 PM MDT | Special Weather Statement | BOU | Arapahoe | 36 min |
| Jul 6, 3:52 PM MDT | Special Weather Statement | BOU | Adams | 23 min |
| Jul 6, 4:13 PM MDT | Special Weather Statement | BOU | Adams | 32 min |
| Jul 6, 4:16 PM MDT | Special Weather Statement | BOU | Arapahoe | 29 min |
| Jul 6, 4:19 PM MDT | Special Weather Statement | BOU | Morgan | 26 min |
| Jul 6, 4:51 PM MDT | Special Weather Statement | BOU | Denver | 24 min |
| Jul 6, 4:54 PM MDT | Special Weather Statement | BOU | Adams | 36 min |
| Jul 6, 5:16 PM MDT | Special Weather Statement | BOU | Arapahoe | 29 min |
Nearby
Severe Thunderstorm Warnings in Colorado, 2023Every severe thunderstorm warning in 2023
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.