Alert archive / Colorado / Severe Thunderstorm Warnings in 2024

Severe Thunderstorm Warning 171, NWS Denver/Boulder, CO

July 3, 2024Elbert County, Lincoln County, Colorado

NWS Denver/Boulder, CO issued this severe thunderstorm warning at Jul 3, 2024, 5:49 PM MDT for Elbert County, Lincoln 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
Jul 3, 2024, 5:49 PM MDT (23:49 UTC)
Expired
Jul 3, 2024, 6:30 PM MDT
In force
41 min
Issued by
NWS Denver/Boulder, CO
Area
Storm-based polygon
Hail
1.5 in
Wind
60.0 mph

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 23:49 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.

IssuedProductOfficeLasted
Jul 3, 12:41 PM MDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 11.8 hours before the alert went out and 352 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.

Skew-T log-pSkew-T log-p diagram, N. Platte/Lee Bi, NE at 12:00Z on 2024-07-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, N. Platte/Lee Bi, NE at 12:00Z on 2024-07-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -1 square meters per square second.1939587897117Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1884 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
-1 m²/s²
0-3 km storm-relative helicity
130 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.0

Open this sounding in Storm Lab

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 3, 5:44 PM MDT, 5 minutes earlier.

Area forecast discussion, Jul 3, 5:44 PM MDT, 5 minutes before
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Hazardous weather outlook, Jul 3, 11:02 AM MDT, 6 hours 47 minutes before
Hazardous Weather Outlook
National Weather Service Denver/Boulder CO
1102 AM MDT Wed Jul 3 2024

COZ030>051-041715-
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-
1102 AM MDT Wed Jul 3 2024

This hazardous weather outlook is for northeast and north central
Colorado.

.DAY ONE...Today and Tonight

Strong to severe storms are possible across the eastern plains
this afternoon and evening. The main threats from these storms
will be large hail and damaging wind gusts, but an isolated
tornado or two is also possible. The area east of a line from
Fort Morgan to Simla will have the greatest chance of severe
storms.

Across the high country and urban corridor, dry and breezy
weather is expected this afternoon, with elevated fire weather
conditions possible.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

The Fourth of July will have pleasant weather with highs in the
low 80s. The only concern for firework shows will be a slight chance
of showers and storms mainly in northern Larimer and Weld Counties
and across the Palmer Divide.

There will be areas of elevated fire weather conditions in the
higher terrain primarily Thursday and Saturday. On Thursday, winds
will gust above 30 mph with relative humidity possibly as low as
10 percent in South Park which may warrant fire weather
highlights.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed today or tonight.

In the hours before

Local storm report, Jul 3, 5:18 PM MDT, 31 minutes before
Preliminary Local Storm Report
National Weather Service Denver CO
518 PM MDT Wed Jul 3 2024

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0501 PM     Hail             3 W Cedar Point         39.35N 103.88W
07/03/2024  M2.65 Inch       Elbert             CO   Public

&&

KEB
Local storm report, Jul 3, 5:33 PM MDT, 16 minutes before
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Local storm report, Jul 3, 5:36 PM MDT, 13 minutes before
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Local storm report, Jul 3, 5:37 PM MDT, 12 minutes before
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Local storm report, Jul 3, 5:39 PM MDT, 10 minutes before
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Local storm report, Jul 3, 5:46 PM MDT, 3 minutes before
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The office that day

Everything else NWS Denver/Boulder, CO issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 3, 1:29 PM MDTSpecial Weather StatementBOULogan46 min
Jul 3, 1:51 PM MDTSevere Thunderstorm WarningBOULogan39 min
Jul 3, 2:45 PM MDTSpecial Weather StatementBOUPhillips, Sedgwick, Washington2 hr
Jul 3, 2:53 PM MDTFire Weather WatchBOUPark12 hr
Jul 3, 2:53 PM MDTSevere Thunderstorm WarningBOULogan, Phillips, Sedgwick52 min
Jul 3, 3:02 PM MDTSevere Thunderstorm WarningBOUAdams43 min
Jul 3, 3:24 PM MDTSevere Thunderstorm WarningBOUArapahoe, Elbert36 min
Jul 3, 3:46 PM MDTSevere Thunderstorm WarningBOUWashington44 min
Jul 3, 3:47 PM MDTSevere Thunderstorm WarningBOUAdams, Arapahoe43 min
Jul 3, 3:51 PM MDTSevere Thunderstorm WarningBOULogan, Phillips, Sedgwick39 min
Jul 3, 3:58 PM MDTTornado WarningBOUWashington17 min
Jul 3, 4:00 PM MDTSevere Thunderstorm WarningBOUElbert45 min
Jul 3, 4:27 PM MDTSevere Thunderstorm WarningBOULogan, Phillips, Sedgwick48 min
Jul 3, 4:27 PM MDTSevere Thunderstorm WarningBOUAdams, Arapahoe, Washington28 min
Jul 3, 4:34 PM MDTSevere Thunderstorm Warning Destructive damage threatBOUElbert41 min
Jul 3, 5:05 PM MDTSevere Thunderstorm WarningBOUElbert, Lincoln40 min
Jul 3, 5:12 PM MDTSevere Thunderstorm WarningBOUPhillips, Sedgwick48 min
Jul 3, 5:31 PM MDTFlash Flood WarningBOUPhillips, Sedgwick3 hr
Jul 3, 5:43 PM MDTSevere Thunderstorm Warning Considerable damage threatBOUElbert, Lincoln47 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.