Alert archive / Colorado / Severe Thunderstorm Warnings in 2023
Severe Thunderstorm Warning 181, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this severe thunderstorm warning at Jun 22, 2023, 5:58 PM MDT for Elbert County, Colorado. It was in force for 27 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, 5:58 PM MDT (23:58 UTC)
- Expired
- Jun 22, 2023, 6:25 PM MDT
- In force
- 27 min
- Issued by
- NWS Denver/Boulder, CO
- Area
- Storm-based polygon
- Damage threat
- Considerable
- Hail
- 1.75 in
- Wind
- 50.0 mph
County Elbert County, CO
The radar
The Denver radar (KFTG), 66 km from the middle of the area, began a volume at 00:04 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 |
The nearest sounding before it
Grand Junction, CO (KGJT), launched 12:00Z, 12.0 hours before the alert went out and 376 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2938 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- -14 m²/s²
- 0-3 km storm-relative helicity
- 21 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 Jun 22, 5:42 PM MDT, 16 minutes earlier.
Area forecast discussion, Jun 22, 5:42 PM MDT, 16 minutes before
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</html>Hazardous weather outlook, Jun 22, 10:36 AM MDT, 7 hours 22 minutes before
Hazardous Weather Outlook National Weather Service Denver/Boulder CO 1036 AM MDT Thu Jun 22 2023 COZ030>051-231645- 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- 1036 AM MDT Thu Jun 22 2023 ...SEVERE STORMS AND FLOODING POSSIBLE... This hazardous weather outlook is for northeast and north central Colorado. .DAY ONE...Today and Tonight Scattered showers and thunderstorms are expected again this afternoon and evening with strong to severe storms possible across the urban corridor and plains. Large hail, damaging wind gusts, heavy rain, and an isolated tornado are all possible with these storms. Storms will begin earlier today, generally noon to 3 pm over the mountains and adjacent plains, then spreading eastward during the late afternoon and evening. Many areas on the plains are already saturated and thus more sensitive to additional rainfall, including rivers and creeks. A flood watch has been issued from noon until midnight tonight for the Denver metro area, and areas south and east of Denver, across the Palmer Divide, and other portions of the eastern plains. There is also a limited threat for flash flooding over the burn areas, mainly Cameron Peak. .DAYS TWO THROUGH SEVEN...Friday through Wednesday Trending toward drier Friday through mid-week next week. There is a chance for scattered thunderstorms Friday afternoon with a few severe storms possible; however, storms will be lesser in coverage. Weekend remains fairly dry. Fire weather conditions return to the high country/Park County Friday through the weekend with low relative humidity and breezy conditions. Elevated fire weather conditions creep into the adjacent plains Saturday. Recent rain should likely limit these concerns. .SPOTTER INFORMATION STATEMENT... Spotter activation will be needed today and this evening, generally after 1 pm. Hail, heavy rain, flooding and tornado reports will be appreciated.
In the hours before
Local storm report, Jun 22, 4:15 PM MDT, 1 hour 43 minutes before
Preliminary Local Storm Report
National Weather Service Denver CO
415 PM MDT Thu Jun 22 2023
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0333 PM Hail 1 SW Littleton 39.59N 105.03W
06/22/2023 M1.50 inch Arapahoe CO Trained Spotter
Report from mPING: Ping Pong Ball (1.50
in.).
&&Local storm report, Jun 22, 4:16 PM MDT, 1 hour 42 minutes before
Preliminary Local Storm Report
National Weather Service Denver CO
416 PM MDT Thu Jun 22 2023
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0325 PM Hail 3 WSW Aurora 39.69N 104.87W
06/22/2023 M1.75 inch Arapahoe CO Trained Spotter
&&Local storm report, Jun 22, 4:50 PM MDT, 1 hour 8 minutes before
Preliminary Local Storm Report
National Weather Service Denver CO
450 PM MDT Thu Jun 22 2023
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0446 PM Flood Elizabeth 39.36N 104.60W
06/22/2023 Elbert CO Trained Spotter
3 inches of hail on the roads, street
flooding, creek out of its banks.
&&Local storm report, Jun 22, 4:51 PM MDT, 1 hour 7 minutes before
Preliminary Local Storm Report
National Weather Service Denver CO
451 PM MDT Thu Jun 22 2023
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0352 PM Tstm Wnd Gst 2 WSW Lone Tree 39.52N 104.93W
06/22/2023 M76 MPH Douglas CO Mesonet
Mesonet station CW2323 Highlands Ranch.
&&Local storm report, Jun 22, 4:56 PM MDT, 1 hour 2 minutes before
Preliminary Local Storm Report
National Weather Service Denver CO
456 PM MDT Thu Jun 22 2023
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0330 PM Tstm Wnd Gst 2 S Littleton 39.56N 105.02W
06/22/2023 M63 MPH Douglas CO Mesonet
&&Local storm report, Jun 22, 5:17 PM MDT, 41 minutes before
Preliminary Local Storm Report...Summary
National Weather Service Denver CO
517 PM MDT Thu Jun 22 2023
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0513 PM Hail Elbert 39.22N 104.54W
06/22/2023 M2.00 inch Elbert CO Trained Spotter
0508 PM Hail 1 SW Elbert 39.21N 104.54W
06/22/2023 M1.25 inch Elbert CO Trained Spotter
Report from mPING: Half Dollar (1.25 in.).
0446 PM Flood Elizabeth 39.36N 104.60W
06/22/2023 Elbert CO Trained Spotter
3 inches of hail on the roads, street
flooding, creek out of its banks.
0437 PM Hail 3 ENE Elizabeth 39.37N 104.55W
06/22/2023 M1.75 inch Elbert CO Trained Spotter
Report from mPING: Golf Ball (1.75 in.).
0406 PM Hail 2 ESE Parker 39.50N 104.72W
06/22/2023 M1.00 inch Douglas CO Trained Spotter
Report from mPING: Quarter (1.00 in.).
0356 PM Hail 1 WNW Parker 39.52N 104.78W
06/22/2023 M1.00 inch Douglas CO Trained Spotter
Report from mPING: Quarter (1.00 in.).
0352 PM Tstm Wnd Gst 2 WSW Lone Tree 39.52N 104.93W
06/22/2023 M76 MPH Douglas CO Mesonet
Mesonet station CW2323 Highlands Ranch.
0338 PM Hail 1 WSW Castle Pines 39.46N 104.90W
06/22/2023 M1.00 inch Douglas CO Trained Spotter
Corrects previous hail report from 1 WSW
Castle Pines.
0333 PM Hail 1 SW Littleton 39.59N 105.03W
06/22/2023 M1.50 inch Arapahoe CO Trained Spotter
Report from mPING: Ping Pong Ball (1.50
in.).
0330 PM Tstm Wnd Gst 2 S Littleton 39.56N 105.02W
06/22/2023 M63 MPH Douglas CO Mesonet
0325 PM Hail 3 WSW Aurora 39.69N 104.87W
06/22/2023 M1.75 inch Arapahoe CO Trained Spotter
0325 PM Tornado 2 WNW Highlands Ranch 39.56N 105.00W
06/22/2023 Douglas CO Trained Spotter
Corrects previous tornado report from 2 WNW
Highlands Ranch. Report via twitter video.
0325 PM Hail 2 SSW Sheridan 39.62N 105.03W
06/22/2023 M1.75 inch Arapahoe CO Trained Spotter
Report from mPING: Golf Ball (1.75 in.).
0314 PM Hail 2 W Columbine 39.60N 105.10W
06/22/2023 E1.00 inch Jefferson CO Public
Report from mPING: Quarter (1.00 in.).
0312 PM Hail 3 NW Columbine 39.63N 105.10W
06/22/2023 E1.25 inch Denver CO Public
Report from mPING: Half Dollar (1.25 in.).
0312 PM Hail 1 NNW Columbine 39.61N 105.07W
06/22/2023 M1.00 inch Jefferson CO Trained Spotter
0308 PM Hail 1 N Ken Caryl 39.60N 105.14W
06/22/2023 E1.00 inch Jefferson CO Public
Report from mPING: Quarter (1.00 in.).
0305 PM Hail 3 NW Columbine 39.61N 105.11W
06/22/2023 M1.75 inch Jefferson CO Trained Spotter
0304 PM Hail 2 NE Ken Caryl 39.61N 105.13W
06/22/2023 E1.00 inch Jefferson CO Public
Report from mPING: Quarter (1.00 in.).
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.).
0259 PM Hail Pleasant View 39.72N 105.17W
06/22/2023 E1.00 inch Jefferson CO Public
Report from mPING: Quarter (1.00 in.).
0251 PM Hail 2 SE Morrison 39.63N 105.15W
06/22/2023 M1.75 inch Jefferson CO Trained Spotter
0249 PM Hail Morrison 39.65N 105.19W
06/22/2023 M2.00 inch Jefferson CO Trained Spotter
0244 PM Hail 1 N Kittredge 39.66N 105.30W
06/22/2023 E1.00 inch Jefferson CO Public
Report from mPING: Quarter (1.00 in.).
0239 PM Hail 2 NNW Indian Hills 39.64N 105.25W
06/22/2023 E2.50 inch Jefferson CO Trained Spotter
Estimated hail size based on Twitter image
and spotter report.
0238 PM Hail Morrison 39.65N 105.19W
06/22/2023 M1.25 inch Jefferson CO Trained Spotter
0225 PM Hail 2 N Idledale 39.70N 105.23W
06/22/2023 E1.00 inch Jefferson CO Public
Report from mPING: Quarter (1.00 in.).
0217 PM Hail 1 E Evergreen 39.63N 105.32W
06/22/2023 M1.75 inch Jefferson CO Trained Spotter
&&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 | 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 | 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 | 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 | BOU | Larimer | 85 min |
| Jun 21, 8:55 PM MDT | Severe Thunderstorm Warning | BOU | Lincoln | 35 min |
| Jun 21, 8:57 PM MDT | Severe Thunderstorm Warning | 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 | 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 | 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 | 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 | 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 | 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 | 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 | BOU | Denver, Jefferson | 45 min |
| Jun 22, 3:01 PM MDT | Severe Thunderstorm Warning | 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, 2023Every 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.