Alert archive / Colorado / Severe Thunderstorm Warnings in 2024
Severe Thunderstorm Warning 42, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this severe thunderstorm warning at May 29, 2024, 6:27 PM MDT for Lincoln County, Washington County, Colorado. It was in force for 48 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
- May 29, 2024, 6:27 PM MDT (00:27 UTC)
- Expired
- May 29, 2024, 7:15 PM MDT
- In force
- 48 min
- Issued by
- NWS Denver/Boulder, CO
- Area
- Storm-based polygon
- Damage threat
- Considerable
- Hail
- 1.75 in
- Wind
- 60.0 mph
Counties Lincoln County, CO, Washington County, CO
The radar
The Denver radar (KFTG), 107 km from the middle of the area, began a volume at 00:31 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| May 29, 2:57 PM MDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 0.5 hours before the alert went out and 297 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
- 532 J/kg
- Mixed-layer CIN
- -75 J/kg
- Mixed-layer LCL
- 2012 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 2 m²/s²
- 0-3 km storm-relative helicity
- 145 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.3
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 May 29, 6:27 PM MDT, 0 minutes earlier.
Area forecast discussion, May 29, 6:27 PM MDT, 0 minutes before
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</html>Hazardous weather outlook, May 29, 10:25 AM MDT, 8 hours 2 minutes before
Hazardous Weather Outlook National Weather Service Denver/Boulder CO 1025 AM MDT Wed May 29 2024 COZ030>051-301630- 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- 1025 AM MDT Wed May 29 2024 This hazardous weather outlook is for northeast and north central Colorado. .DAY ONE...Today and Tonight Scattered thunderstorms and showers will develop in the foothills extending to the plains by this evening. Severe thunderstorms are possible mainly along the far eastern plains which could produce large hail up to golf ball size, and wind gusts up to 60 mph. Heavy rain and an isolated tornado are also possible. The main threat of severe weather will be in areas east of Fort Morgan and Limon between 3 PM and 10 PM. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday Afternoon and evening thunderstorms are expected each day through Saturday. The storms will be most numerous across the eastern plains. Some storms these could be strong to severe as well. .SPOTTER INFORMATION STATEMENT... Spotter activation may be needed after 2 PM.
In the hours before
Special weather statement, May 29, 1:51 PM MDT, 4 hours 36 minutes before
Special Weather Statement
National Weather Service Denver CO
151 PM MDT Wed May 29 2024
COZ044-045-292030-
Morgan County CO-Central and East Adams and Arapahoe Counties CO-
151 PM MDT Wed May 29 2024
...STRONG THUNDERSTORMs WILL IMPACT EASTERN ARAPAHOE...SOUTHWESTERN
MORGAN AND EASTERN ADAMS COUNTIES THROUGH 230 PM MDT...
At 146 PM MDT, trained weather spotters reported a strong
thunderstorm capable of producing a landspout tornado over eastern
Adams, southern Morgan and western Washington Counties. The area of
storm was drifting eastward at 10 mph.
HAZARD...Landspouts.
SOURCE...Trained weather spotters.
IMPACT...Landspout tornadoes can damage mobile homes, roofs,
vehicles, and trees. Outdoor objects may be tossed about.
Locations impacted include...
Fort Morgan, Bennett, Wiggins, Log Lane Village, Deer Trail, Hoyt,
Shamrock, Leader, Twelve-Mile Corner, Strasburg, Adena School, Byers,
and Adena.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
If a tornado is spotted seek shelter inside a sturdy building.
&&
LAT...LON 4030 10365 3959 10390 3959 10446 4000 10424
4000 10415 4017 10415 4032 10407
TIME...MOT...LOC 1946Z 225DEG 8KT 3961 10426
LANDSPOUT...POSSIBLE
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...<30 MPH
RJKSpecial weather statement, May 29, 4:49 PM MDT, 1 hour 38 minutes before
Special Weather Statement
National Weather Service Denver CO
449 PM MDT Wed May 29 2024
COZ044>046-048>051-292330-
Phillips County CO-Washington County CO-
North and Northeast Elbert County Below 6000 Feet/North Lincoln
County CO-Morgan County CO-Sedgwick County CO-
Central and East Adams and Arapahoe Counties CO-Logan County CO-
449 PM MDT Wed May 29 2024
...STRONG THUNDERSTORMS WILL IMPACT NORTHEASTERN ELBERT...EASTERN
ARAPAHOE...SOUTHEASTERN MORGAN...WASHINGTON...SOUTHEASTERN LOGAN...
WESTERN PHILLIPS...EASTERN ADAMS...SOUTH CENTRAL SEDGWICK AND
NORTHEASTERN LINCOLN COUNTIES THROUGH 530 PM MDT...
At 448 PM MDT, Doppler radar was tracking strong thunderstorms along
a line extending from 4 miles southwest of Fleming to 10 miles east
of Agate, or along a line extending from 16 miles east of Sterling to
12 miles north of Limon. Movement was east at 30 mph.
HAZARD...Wind gusts of 50 to 55 mph and nickel size hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor hail damage to vegetation is
possible.
Locations impacted include...
Akron, Haxtun, Otis, Fleming, Paoli, Gary, Thurman, Arickaree School,
Anton, St Petersburg, Shamrock, Elba, Platner, Agate, Highland
Center, Burdett, Woodlin School, Cottonwood Valley, Lindon, and
Midway.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
If a tornado is spotted seek shelter inside a sturdy building.
A Severe Thunderstorm Watch remains in effect until 900 PM MDT for
northeastern and east central Colorado.
&&
LAT...LON 4083 10225 4044 10249 4044 10278 3994 10280
3957 10303 3957 10316 3935 10316 3942 10406
4011 10370 4064 10307
TIME...MOT...LOC 2248Z 254DEG 25KT 4062 10289 3944 10376
MAX HAIL SIZE...0.88 IN
MAX WIND GUST...55 MPH
RJKLocal storm report, May 29, 6:22 PM MDT, 5 minutes before
Preliminary Local Storm Report...Summary
National Weather Service Denver CO
622 PM MDT Wed May 29 2024
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0608 PM Hail 6 WSW Thurman 39.55N 103.33W
05/29/2024 E1.75 Inch Lincoln CO Trained Spotter
Hail lasted for 20 minutes total. Largest
hail was estimated to be about golf ball
sized hail.
0541 PM Hail 1 N Haxtun 40.66N 102.63W
05/29/2024 M0.50 Inch Phillips CO Public
A few rounds of pea size to half inch
diameter hail.
0540 PM Hail 11 NE Limon 39.42N 103.62W
05/29/2024 E0.50 Inch Lincoln CO Public
Report from mPING: Half-inch (0.50 in.).
0509 PM Hail 6 S Akron 40.08N 103.21W
05/29/2024 M0.88 Inch Washington CO Broadcast Media
Lots of hail, but the largest hail was about
nickel size.
0420 PM Non-Tstm Wnd Gst 2 ESE Sterling 40.62N 103.17W
05/29/2024 M69 MPH Logan CO Mesonet
Mesonet station CO035 I-76 Sterling.
Associated with outflow winds from a decayed
thunderstorm.
0415 PM Non-Tstm Wnd Gst 3 WSW Sterling 40.62N 103.27W
05/29/2024 M59 MPH Logan CO AWOS
AWOS station KSTK Sterling. Associated with
outflow from a decayed thunderstorm.
0318 PM Hail 2 W Log Lane Village 40.27N 103.86W
05/29/2024 E0.88 Inch Morgan CO Broadcast Media
Time estimated.
&&The office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 29, 7:02 PM MDT | Severe Thunderstorm Warning | BOU | Elbert, Lincoln, Washington | 28 min |
| May 29, 7:11 PM MDT | Flash Flood Warning | BOU | Lincoln, Washington | 3 hr |
| May 29, 8:13 PM MDT | Special Weather Statement | BOU | Lincoln | 47 min |
| May 30, 2:46 PM MDT | Special Weather Statement | BOU | Douglas | 44 min |
| May 30, 5:19 PM MDT | Special Weather Statement | BOU | Lincoln | 26 min |
Nearby
Severe Thunderstorm Warnings in Colorado, 2024Every severe thunderstorm warning in 2024
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.