Alert archive / Colorado / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 174, NWS Denver/Boulder, CO

June 22, 20234 counties in Colorado

NWS Denver/Boulder, CO issued this severe thunderstorm warning at Jun 22, 2023, 3:15 PM MDT for 4 counties in Colorado. It was in force for 45 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: Jun 22, 2023, 3:15 PM MDT (21:15 UTC)
Expired: Jun 22, 2023, 4:00 PM MDT
In force: 45 min
Issued by: NWS Denver/Boulder, CO
Area: Storm-based polygon
Damage threat: Considerable
Hail: 2.5 in
Wind: 50.0 mph

Counties Arapahoe County, CO, Denver County, CO, Douglas County, CO, Jefferson County, CO

The radar

The Denver radar (KFTG), 34 km from the middle of the area, began a volume at 21:16 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
Jun 22, 12:14 PM MDT	Severe Thunderstorm Watch	SPC	10 hr

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 Jun 22, 3:02 PM MDT, 13 minutes earlier.

Area forecast discussion, Jun 22, 3:02 PM MDT, 13 minutes before

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Hazardous weather outlook, Jun 22, 10:36 AM MDT, 4 hours 39 minutes before

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In the hours before

Local storm report, Jun 22, 2:41 PM MDT, 34 minutes before

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Local storm report, Jun 22, 2:49 PM MDT, 26 minutes before

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Local storm report, Jun 22, 2:51 PM MDT, 24 minutes before

Preliminary Local Storm Report
National Weather Service Denver CO
251 PM MDT Thu Jun 22 2023

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

0249 PM     Hail             Morrison                39.65N 105.19W
06/22/2023  M2.00 inch       Jefferson          CO   Trained Spotter

&&

Local storm report, Jun 22, 2:59 PM MDT, 16 minutes before

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Local storm report, Jun 22, 3:10 PM MDT, 5 minutes before

Preliminary Local Storm Report
National Weather Service Denver CO
310 PM MDT Thu Jun 22 2023

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

0305 PM     Hail             3 NW Columbine          39.61N 105.11W
06/22/2023  M1.75 inch       Jefferson          CO   Trained Spotter

&&

Local storm report, Jun 22, 3:12 PM MDT, 3 minutes before

Preliminary Local Storm Report
National Weather Service Denver CO
312 PM MDT Thu Jun 22 2023

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

0301 PM     Hail             Pleasant View           39.72N 105.17W
06/22/2023  M1.25 inch       Jefferson          CO   Public

            Report from mPING: Half Dollar (1.25 in.).

&&

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 21, 6:01 PM MDT	Severe Thunderstorm Warning	BOU	Washington	29 min
Jun 21, 6:11 PM MDT	Severe Thunderstorm Warning	BOU	Adams, Morgan, Washington	34 min
Jun 21, 6:19 PM MDT	Flash Flood Warning	BOU	Logan	3 hr
Jun 21, 6:23 PM MDT	Tornado Warning	BOU	Logan	22 min
Jun 21, 6:24 PM MDT	Severe Thunderstorm Warning	BOU	Washington	51 min
Jun 21, 6:26 PM MDT	Tornado Warning	BOU	Washington	34 min
Jun 21, 6:47 PM MDT	Severe Thunderstorm Warning	BOU	Weld	43 min
Jun 21, 6:53 PM MDT	Tornado Warning Considerable damage threat	BOU	Washington	37 min
Jun 21, 6:54 PM MDT	Severe Thunderstorm Warning	BOU	Adams	36 min
Jun 21, 7:18 PM MDT	Severe Thunderstorm Warning	BOU	Adams, Weld	27 min
Jun 21, 7:21 PM MDT	Severe Thunderstorm Warning	BOU	Clear Creek	24 min
Jun 21, 7:26 PM MDT	Severe Thunderstorm Warning	BOU	Washington	34 min
Jun 21, 7:27 PM MDT	Flash Flood Warning	BOU	Morgan, Washington	3 hr
Jun 21, 7:35 PM MDT	Severe Thunderstorm Warning	BOU	Lincoln	25 min
Jun 21, 7:36 PM MDT	Severe Thunderstorm Warning	BOU	Larimer, Weld	39 min
Jun 21, 7:39 PM MDT	Tornado Warning	BOU	Washington	15 min
Jun 21, 7:46 PM MDT	Severe Thunderstorm Warning	BOU	Clear Creek, Gilpin, Jefferson, Park	44 min
Jun 21, 7:48 PM MDT	Areal Flood Advisory	BOU	Weld	3 hr
Jun 21, 7:53 PM MDT	Severe Thunderstorm Warning	BOU	Lincoln	37 min
Jun 21, 7:56 PM MDT	Severe Thunderstorm Warning	BOU	Washington	17 min
Jun 21, 8:02 PM MDT	Severe Thunderstorm Warning	BOU	Weld	28 min
Jun 21, 8:12 PM MDT	Severe Thunderstorm Warning	BOU	Weld	33 min
Jun 21, 8:17 PM MDT	Severe Thunderstorm Warning	BOU	Arapahoe, Elbert	28 min
Jun 21, 8:26 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BOU	Lincoln	34 min
Jun 21, 8:28 PM MDT	Severe Thunderstorm Warning	BOU	Lincoln	32 min
Jun 21, 8:32 PM MDT	Areal Flood Advisory	BOU	Clear Creek, Park	3 hr
Jun 21, 8:38 PM MDT	Flash Flood Warning	BOU	Washington	3 hr
Jun 21, 8:40 PM MDT	Severe Thunderstorm Warning	BOU	Clear Creek, Jefferson	50 min
Jun 21, 8:40 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BOU	Arapahoe, Elbert	35 min
Jun 21, 8:43 PM MDT	Severe Thunderstorm Warning	BOU	Adams, Arapahoe, Denver, Jefferson	32 min
Jun 21, 8:44 PM MDT	Severe Thunderstorm Warning	BOU	Adams, Weld	31 min
Jun 21, 8:48 PM MDT	Flash Flood Warning Considerable damage threat	BOU	Larimer	85 min
Jun 21, 8:55 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BOU	Lincoln	35 min
Jun 21, 8:57 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BOU	Lincoln	14 min
Jun 21, 8:59 PM MDT	Flash Flood Warning	BOU	Lincoln	3 hr
Jun 21, 9:04 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BOU	Clear Creek, Jefferson	26 min
Jun 21, 9:05 PM MDT	Severe Thunderstorm Warning	BOU	Adams, Arapahoe, Denver	25 min
Jun 21, 9:10 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BOU	Elbert	19 min
Jun 21, 9:15 PM MDT	Severe Thunderstorm Warning	BOU	Adams, Morgan, Weld	30 min
Jun 21, 9:17 PM MDT	Severe Thunderstorm Warning	BOU	Elbert	28 min
Jun 21, 9:20 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BOU	Arapahoe, Denver, Jefferson	40 min
Jun 21, 9:21 PM MDT	Flash Flood Warning	BOU	Clear Creek	3 hr
Jun 21, 9:27 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BOU	Adams, Arapahoe, Denver	33 min
Jun 21, 9:28 PM MDT	Areal Flood Advisory	BOU	Adams, Arapahoe, Denver, Jefferson	3 hr
Jun 21, 9:33 PM MDT	Areal Flood Warning	BOU	Logan	6 hr
Jun 21, 9:39 PM MDT	Severe Thunderstorm Warning	BOU	Arapahoe, Denver	36 min
Jun 21, 9:39 PM MDT	Severe Thunderstorm Warning	BOU	Elbert	36 min
Jun 21, 9:44 PM MDT	Severe Thunderstorm Warning	BOU	Douglas, Elbert	46 min
Jun 21, 9:52 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BOU	Lincoln	38 min
Jun 21, 9:53 PM MDT	Flash Flood Warning	BOU	Lincoln	3 hr
Jun 21, 9:59 PM MDT	Severe Thunderstorm Warning	BOU	Arapahoe	31 min
Jun 21, 10:07 PM MDT	Flash Flood Warning	BOU	Adams, Arapahoe, Denver	3 hr
Jun 21, 10:10 PM MDT	Severe Thunderstorm Warning	BOU	Elbert	35 min
Jun 21, 10:24 PM MDT	Areal Flood Warning	BOU	Morgan, Washington	9 hr
Jun 21, 10:39 PM MDT	Flash Flood Warning	BOU	Elbert	3 hr
Jun 21, 10:41 PM MDT	Severe Thunderstorm Warning	BOU	Elbert	49 min
Jun 21, 11:27 PM MDT	Severe Thunderstorm Warning	BOU	Elbert	33 min
Jun 21, 11:35 PM MDT	Severe Thunderstorm Warning	BOU	Jefferson	25 min
Jun 21, 11:41 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BOU	Lincoln	34 min
Jun 21, 11:55 PM MDT	Severe Thunderstorm Warning	BOU	Elbert	50 min
Jun 22, 12:13 AM MDT	Severe Thunderstorm Warning	BOU	Elbert, Lincoln	32 min
Jun 22, 12:14 AM MDT	Areal Flood Warning	BOU	Adams	6 hr
Jun 22, 12:39 AM MDT	Severe Thunderstorm Warning	BOU	Elbert	14 min
Jun 22, 12:40 AM MDT	Flash Flood Warning	BOU	Lincoln	3 hr
Jun 22, 12:48 AM MDT	Areal Flood Warning	BOU	Adams, Arapahoe, Elbert	6 hr
Jun 22, 12:50 AM MDT	Areal Flood Advisory	BOU	Clear Creek, Jefferson, Park	3 hr
Jun 22, 2:02 AM MDT	Areal Flood Warning	BOU	Adams, Arapahoe, Elbert, Morgan	24 hr
Jun 22, 2:43 AM MDT	Severe Thunderstorm Warning	BOU	Lincoln	47 min
Jun 22, 3:12 AM MDT	Areal Flood Advisory	BOU	Elbert, Lincoln	3 hr
Jun 22, 7:24 AM MDT	Areal Flood Advisory	BOU	Morgan, Washington	6 hr
Jun 22, 10:13 AM MDT	Flood Watch	BOU	Adams, Arapahoe, Boulder, Broomfield, Denver, Douglas and 6 more	14 hr
Jun 22, 10:49 AM MDT	River Flood Advisory	BOU	Weld	4 days
Jun 22, 10:52 AM MDT	River Flood Advisory	BOU	Morgan, Weld	4 days
Jun 22, 1:35 PM MDT	Areal Flood Advisory	BOU	Logan	17 hr
Jun 22, 1:40 PM MDT	Severe Thunderstorm Warning	BOU	Gilpin, Jefferson	15 min
Jun 22, 2:15 PM MDT	Severe Thunderstorm Warning	BOU	Denver, Jefferson	45 min
Jun 22, 2:45 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BOU	Denver, Jefferson	45 min
Jun 22, 3:01 PM MDT	Severe Thunderstorm Warning Destructive damage threat	BOU	Arapahoe, Denver, Jefferson	44 min
Jun 22, 3:04 PM MDT	Severe Thunderstorm Warning	BOU	Boulder	22 min
Jun 22, 3:09 PM MDT	Areal Flood Advisory	BOU	Gilpin, Jefferson	3 hr

Nearby

Severe Thunderstorm Warnings in Colorado, 2023 Every 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; radar from the NEXRAD Level II archive.