Alert archive / Colorado / Severe Thunderstorm Warnings in 2025
Severe Thunderstorm Warning 342, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this severe thunderstorm warning at Aug 24, 2025, 2:05 PM MDT for Lincoln County, Colorado. It was in force for 25 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 24, 2025, 2:05 PM MDT (20:05 UTC)
- Expired
- Aug 24, 2025, 2:30 PM MDT
- In force
- 25 min
- Issued by
- NWS Denver/Boulder, CO
- Area
- Storm-based polygon
- Hail
- 1.25 in
- Wind
- 50.0 mph
County Lincoln County, CO
The radar
The Pueblo radar (KPUX), 82 km from the middle of the area, began a volume at 20:06 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 12:00Z, 8.1 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
- 887 J/kg
- Mixed-layer CIN
- -58 J/kg
- Mixed-layer LCL
- 672 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 69 m²/s²
- 0-3 km storm-relative helicity
- 146 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 5.0
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 Aug 24, 11:34 AM MDT, 2 hours 31 minutes earlier.
Area forecast discussion, Aug 24, 11:34 AM MDT, 2 hours 31 minutes before
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Service Notice</title>
<link rel="stylesheet" href="index.css">
</head>
<body>
<main class="wrap">
<section class="card" role="status" aria-live="polite">
<div class="status" id="status">Temporary Notice</div>
<h1 id="headline">This service is currently unavailable.</h1>
<p id="message1">
The site you requested is temporarily down for maintenance or an unexpected outage.
</p>
<p id="message2">
Please try again in a few minutes.
</p>
<p class="small" id="detail">
If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
</p>
</section>
</main>
<script src="index.js"></script>
</body>
</html>Hazardous weather outlook, Aug 24, 9:44 AM MDT, 4 hours 21 minutes before
Hazardous Weather Outlook National Weather Service Denver/Boulder CO 944 AM MDT Sun Aug 24 2025 COZ030>051-251545- Jackson County Below 9000 Feet- West Jackson and West Grand Counties Above 9000 Feet- Grand and Summit Counties Below 9000 Feet- South and East Jackson/Larimer/North and Northeast Grand/ Northwest Boulder Counties Above 9000 Feet- South and Southeast Grand/West Central and Southwest Boulder/ Gilpin/Clear Creek/Summit/North and West Park Counties Above 9000 Feet-Larimer and Boulder Counties Between 6000 and 9000 Feet- Jefferson and West Douglas Counties Above 6000 Feet/Gilpin/Clear Creek/Northeast Park Counties Below 9000 Feet- Central and Southeast Park County- Larimer County Below 6000 Feet/Northwest Weld County- Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County- North Douglas County Below 6000 Feet/Denver/West Adams and Arapahoe Counties/East Broomfield County- Elbert/Central and East Douglas Counties Above 6000 Feet- Northeast Weld County-Central and South Weld County-Morgan County- Central and East Adams and Arapahoe Counties- North and Northeast Elbert County Below 6000 Feet/North Lincoln County- Southeast Elbert County Below 6000 Feet/South Lincoln County- Logan County-Washington County-Sedgwick County-Phillips County- 944 AM MDT Sun Aug 24 2025 This hazardous weather outlook is for northeast and north central Colorado. .DAY ONE...Today and Tonight Scattered showers and thunderstorms will form mid to late afternoon. As this activity spreads eastward across the I-25 Corridor and plains, showers and thunderstorms will increase in coverage. There is a small risk for one or two strong to severe thunderstorms. Heavy rainfall will be possible from the thunderstorms later today as the atmosphere moistens. This may lead to localized flooding if storms are slow to move or train over the same areas. .DAYS TWO THROUGH SEVEN...Monday through Saturday The weather pattern will remain active with scattered to numerous showers and thunderstorms most days. Cooler temperatures, will stay in the forecast picture for all of next week. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed today or tonight.
In the hours before
Special weather statement, Aug 24, 1:59 PM MDT, 6 minutes before
Special Weather Statement National Weather Service Denver CO 159 PM MDT Sun Aug 24 2025 COZ046-242030- North and Northeast Elbert County Below 6000 Feet/North Lincoln County CO- 159 PM MDT Sun Aug 24 2025 ...A STRONG THUNDERSTORM WILL IMPACT NORTHEASTERN LINCOLN COUNTY UNTIL 230 PM MDT... At 159 PM MDT, Doppler radar was tracking a strong thunderstorm 10 miles south of Thurman, or 28 miles northeast of Limon, moving southeast at 15 mph. HAZARD...Nickel size hail. SOURCE...Radar indicated. IMPACT...Minor damage to outdoor objects is possible. Locations impacted include... Arriba. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the weather situation closely and be alert for threatening weather conditions. If outdoors, consider seeking shelter inside a building. && LAT...LON 3923 10339 3957 10337 3957 10315 3923 10316 TIME...MOT...LOC 1959Z 329DEG 12KT 3945 10323 MAX HAIL SIZE...0.88 IN MAX WIND GUST...<30 MPH RPK
Local storm report, Aug 24, 2:02 PM MDT, 3 minutes before
Preliminary Local Storm Report
National Weather Service Denver CO
202 PM MDT Sun Aug 24 2025
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0410 PM Hail 4 NNE Floyd Hill 39.77N 105.39W
08/23/2025 M1.00 Inch Jefferson CO Cocorahs
&&The office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 23, 10:30 PM MDT | Severe Thunderstorm Warning | BOU | Logan, Phillips, Sedgwick | 45 min |
| Aug 23, 11:12 PM MDT | Severe Thunderstorm Warning | BOU | Logan, Phillips | 48 min |
| Aug 24, 1:59 PM MDT | Special Weather Statement | BOU | Lincoln | 31 min |
| Aug 24, 2:29 PM MDT | Severe Thunderstorm Warning | BOU | Lincoln | 31 min |
| Aug 24, 2:58 PM MDT | Severe Thunderstorm Warning | BOU | Lincoln | 32 min |
| Aug 24, 5:08 PM MDT | Severe Thunderstorm Warning | BOU | Lincoln | 37 min |
| Aug 24, 5:21 PM MDT | Special Weather Statement | BOU | Elbert | 39 min |
| Aug 24, 5:46 PM MDT | Areal Flood Advisory | BOU | Elbert | 35 min |
Nearby
Severe Thunderstorm Warnings in Colorado, 2025Every severe thunderstorm warning in 2025
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.