Alert archive / Colorado / Severe Thunderstorm Warnings in 2024

Severe Thunderstorm Warning 189, NWS Denver/Boulder, CO

July 19, 2024Lincoln County, Colorado

NWS Denver/Boulder, CO issued this severe thunderstorm warning at Jul 19, 2024, 6:53 PM MDT for Lincoln County, Colorado. It was in force for 52 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 19, 2024, 6:53 PM MDT (00:53 UTC)
Expired: Jul 19, 2024, 7:45 PM MDT
In force: 52 min
Issued by: NWS Denver/Boulder, CO
Area: Storm-based polygon
Damage threat: Considerable
Hail: 1.5 in
Wind: 70.0 mph

County Lincoln County, CO

The radar

The Pueblo radar (KPUX), 82 km from the middle of the area, began a volume at 00:53 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, 0.9 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1067 J/kg
Mixed-layer CIN: -76 J/kg
Mixed-layer LCL: 1644 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 59 m²/s²
0-3 km storm-relative helicity: 290 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 10.0

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 19, 5:21 PM MDT, 1 hour 32 minutes earlier.

Area forecast discussion, Jul 19, 5:21 PM MDT, 1 hour 32 minutes before

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Hazardous weather outlook, Jul 19, 11:06 AM MDT, 7 hours 47 minutes before

Hazardous Weather Outlook
National Weather Service Denver/Boulder CO
1106 AM MDT Fri Jul 19 2024

COZ030>051-201715-
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-
1106 AM MDT Fri Jul 19 2024

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

.DAY ONE...This Afternoon and Tonight

Scattered showers and thunderstorms are expected this afternoon
and evening across north central and northeast Colorado. There is
a slight chance of severe storms across the northeast corner of
Colorado, with hail up to the size of quarters and wind gusts to
60 mph possible with the strongest storms in the mid afternoon. A
limited threat exists for flash flooding over the burn scars.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday

There will be scattered late day showers and thunderstorms across
the forecast area this weekend into early next week. Locally
heavy rainfall will be possible Sunday with a limited threat of
flash flooding across the burn scars. A gradual warming and drying
trend is expected next week.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected, but any reports of large hail
or gusty winds will be appreciated.

In the hours before

Special weather statement, Jul 19, 5:28 PM MDT, 1 hour 25 minutes before

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Special weather statement, Jul 19, 6:00 PM MDT, 53 minutes before

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Local storm report, Jul 19, 6:06 PM MDT, 47 minutes before

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Local storm report, Jul 19, 6:43 PM MDT, 10 minutes before

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Special weather statement, Jul 19, 6:51 PM MDT, 2 minutes before

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Local storm report, Jul 19, 6:52 PM MDT, 1 minute before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 19, 6:00 PM MDT	Special Weather Statement	BOU	Lincoln	45 min
Jul 19, 6:25 PM MDT	Severe Thunderstorm Warning	BOU	Lincoln	50 min
Jul 19, 6:51 PM MDT	Special Weather Statement	BOU	Morgan, Weld	39 min
Jul 19, 7:35 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BOU	Phillips	40 min
Jul 19, 8:14 PM MDT	Special Weather Statement	BOU	Logan	31 min
Jul 19, 9:01 PM MDT	Special Weather Statement	BOU	Yuma	29 min
Jul 20, 2:40 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BOU	Washington	35 min
Jul 20, 2:55 PM MDT	Severe Thunderstorm Warning	BOU	Phillips, Sedgwick	35 min
Jul 20, 3:12 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BOU	Washington	33 min
Jul 20, 3:47 PM MDT	Severe Thunderstorm Warning	BOU	Phillips	11 min
Jul 20, 3:56 PM MDT	Severe Thunderstorm Warning	BOU	Logan	34 min
Jul 20, 4:12 PM MDT	Severe Thunderstorm Warning	BOU	Weld	33 min
Jul 20, 4:54 PM MDT	Severe Thunderstorm Warning	BOU	Morgan	36 min
Jul 20, 5:03 PM MDT	Special Weather Statement	BOU	Washington	27 min
Jul 20, 5:29 PM MDT	Severe Thunderstorm Warning	BOU	Morgan	31 min

Nearby

Severe Thunderstorm Warnings in Colorado, 2024 Every 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.