Alert archive / Colorado / Severe Thunderstorm Warnings in 2026

Severe Thunderstorm Warning 285, NWS Denver/Boulder, CO

July 28, 2026Washington County, Colorado

NWS Denver/Boulder, CO issued this severe thunderstorm warning at Jul 28, 2026, 5:00 PM MDT for Washington County, Colorado. It was in force for 30 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 28, 2026, 5:00 PM MDT (23:00 UTC)
Expired: Jul 28, 2026, 5:30 PM MDT
In force: 30 min
Issued by: NWS Denver/Boulder, CO
Area: Storm-based polygon
Tornado: Possible
Hail: 1.0 in
Wind: 60.0 mph

County Washington County, CO

The radar

The Denver radar (KFTG), 117 km from the middle of the area, began a volume at 23:02 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
Jul 28, 1:07 PM MDT	Severe Thunderstorm Watch	SPC	9 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 Jul 28, 1:27 PM MDT, 3 hours 33 minutes earlier.

Area forecast discussion, Jul 28, 1:27 PM MDT, 3 hours 33 minutes before

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In the hours before

Special weather statement, Jul 28, 2:34 PM MDT, 2 hours 26 minutes before

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Special weather statement, Jul 28, 2:45 PM MDT, 2 hours 15 minutes before

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Special weather statement, Jul 28, 2:47 PM MDT, 2 hours 13 minutes before

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Local storm report, Jul 28, 3:37 PM MDT, 1 hour 23 minutes before

Preliminary Local Storm Report
National Weather Service Denver CO
337 PM MDT Tue Jul 28 2026

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

0310 PM     Tstm Wnd Gst     6 S Manila Village      39.67N 104.53W
07/28/2026  M61 MPH          Arapahoe           CO   Public

            Personal weather station.

0310 PM     Tstm Wnd Gst     5 S Manila Village      39.69N 104.50W
07/28/2026  M58 MPH          Arapahoe           CO   Mesonet

            Mesonet station AX443 BENNETT.

0302 PM     Tstm Wnd Gst     5 SSE Watkins           39.69N 104.58W
07/28/2026  M66 MPH          Arapahoe           CO   Public

0250 PM     Tstm Wnd Gst     2 SSW Lower Latham Rese 40.32N 104.66W
07/28/2026  M57 MPH          Weld               CO   Public

            Personal weather station.

0216 PM     Hail             3 NW Castle Rock        39.41N 104.89W
07/28/2026  E1.00 Inch       Douglas            CO   Public

            Report from mPING: Quarter (1.00 in.).

0214 PM     Hail             3 NW Castle Rock        39.41N 104.89W
07/28/2026  M0.75 Inch       Douglas            CO   Public

            Report from mPING: Dime (0.75 in.).

0206 PM     Tstm Wnd Gst     4 SW Carter Lake        40.30N 105.28W
07/28/2026  M58 MPH          Larimer            CO   Public

            Personal weather station.

0205 PM     Tstm Wnd Gst     6 NE Elizabeth          39.43N 104.53W
07/28/2026  M60 MPH          Elbert             CO   Public

            Personal weather station.

0158 PM     Tstm Wnd Gst     3 SSE Pinewood Springs  40.23N 105.33W
07/28/2026  M55 MPH          Boulder            CO   Public

            Personal weather station.

0138 PM     Hail             4 W Pinewood Springs    40.27N 105.43W
07/28/2026  E0.75 Inch       Larimer            CO   Public

            Report from mPING: Dime (0.75 in.).

&&

Special weather statement, Jul 28, 3:53 PM MDT, 1 hour 7 minutes before

Special Weather Statement
National Weather Service Denver CO
353 PM MDT Tue Jul 28 2026

COZ044-045-282230-
Morgan County CO-Central and East Adams and Arapahoe Counties CO-
353 PM MDT Tue Jul 28 2026

...A LINE OF STRONG THUNDERSTORMS WILL IMPACT CENTRAL MORGAN...
ARAPAHOE AND EASTERN ADAMS COUNTIES UNTIL 430 PM MDT...

At 353 PM MDT, Doppler radar was tracking a line of strong
thunderstorms extending from 6 miles south of Antelope Springs to 6
miles southwest of Leader, or extending from 7 miles north of Fort
Morgan to 35 miles southwest of Fort Morgan, moving southeast at 15
mph.

HAZARD...Wind gusts of 50 to 55 mph and penny size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
  Fort Morgan, Brush, Log Lane Village, Twelve-Mile Corner, Adena
  School, Adena, Shamrock, Hoyt, Leader, Snyder, Antelope Springs,
  Hoyt Beet Dump and Fort Morgan Airport.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the weather situation closely and be alert for threatening
weather conditions.

&&

LAT...LON 3976 10424 4012 10403 4046 10381 4044 10347
      4000 10369 4000 10371 3997 10371 3974 10383
TIME...MOT...LOC 2153Z 298DEG 12KT 4036 10375 4009 10396 3983 10413

MAX HAIL SIZE...0.75 IN
MAX WIND GUST...50 TO 55 MPH

63

Local storm report, Jul 28, 4:19 PM MDT, 41 minutes before

Preliminary Local Storm Report...Summary
National Weather Service Denver CO
419 PM MDT Tue Jul 28 2026

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

0330 PM     Tstm Wnd Gst     3 NW Strasburg          39.77N 104.33W
07/28/2026  M67 MPH          Adams              CO   Public

            Personal weather station.

0325 PM     Tstm Wnd Gst     1 SSW Bennett           39.74N 104.43W
07/28/2026  M70 MPH          Adams              CO   Mesonet

            Mesonet station CO072 Bennett.

0310 PM     Tstm Wnd Gst     6 S Manila Village      39.67N 104.53W
07/28/2026  M61 MPH          Arapahoe           CO   Public

            Personal weather station.

0310 PM     Tstm Wnd Gst     10 E Arapahoe Park      39.61N 104.51W
07/28/2026  M58 MPH          Arapahoe           CO   Mesonet

            Mesonet station AV686 Bennett.

0310 PM     Tstm Wnd Gst     5 S Manila Village      39.69N 104.50W
07/28/2026  M58 MPH          Arapahoe           CO   Mesonet

            Mesonet station AX443 BENNETT.

0302 PM     Tstm Wnd Gst     5 SSE Watkins           39.69N 104.58W
07/28/2026  M66 MPH          Arapahoe           CO   Public

0250 PM     Tstm Wnd Gst     2 SSW Lower Latham Rese 40.32N 104.66W
07/28/2026  M57 MPH          Weld               CO   Public

            Personal weather station.

0206 PM     Tstm Wnd Gst     4 SW Carter Lake        40.30N 105.28W
07/28/2026  M58 MPH          Larimer            CO   Public

            Personal weather station.

0205 PM     Tstm Wnd Gst     6 NE Elizabeth          39.43N 104.53W
07/28/2026  M60 MPH          Elbert             CO   Public

            Personal weather station.

0158 PM     Tstm Wnd Gst     3 SSE Pinewood Springs  40.23N 105.33W
07/28/2026  M55 MPH          Boulder            CO   Public

            Personal weather station.

&&

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 28, 2:55 AM MDT	Flood Watch	BOU	Adams, Arapahoe, Elbert, Lincoln, Logan, Morgan and 2 more	19 hr
Jul 28, 12:25 PM MDT	Areal Flood Advisory	BOU	Larimer	59 min
Jul 28, 12:30 PM MDT	Special Weather Statement	BOU	Gilpin	30 min
Jul 28, 12:51 PM MDT	Areal Flood Advisory	BOU	Larimer	33 min
Jul 28, 12:54 PM MDT	Areal Flood Advisory	BOU	Gilpin	3 hr
Jul 28, 12:56 PM MDT	Areal Flood Advisory	BOU	Douglas	3 hr
Jul 28, 1:01 PM MDT	Flash Flood Warning	BOU	Larimer	3 hr
Jul 28, 1:03 PM MDT	Special Weather Statement	BOU	Douglas	42 min
Jul 28, 1:22 PM MDT	Areal Flood Advisory	BOU	Douglas, Elbert	12 min
Jul 28, 1:27 PM MDT	Special Weather Statement	BOU	Larimer	48 min
Jul 28, 1:31 PM MDT	Severe Thunderstorm Warning	BOU	Jefferson, Park	29 min
Jul 28, 1:34 PM MDT	Flash Flood Warning	BOU	Douglas, Elbert	3 hr
Jul 28, 1:52 PM MDT	Severe Thunderstorm Warning	BOU	Boulder, Larimer	26 min
Jul 28, 1:59 PM MDT	Severe Thunderstorm Warning	BOU	Elbert	31 min
Jul 28, 2:18 PM MDT	Special Weather Statement	BOU	Boulder	27 min
Jul 28, 2:28 PM MDT	Areal Flood Advisory	BOU	Boulder, Larimer	3 hr
Jul 28, 2:31 PM MDT	Special Weather Statement	BOU	Douglas	44 min
Jul 28, 2:34 PM MDT	Special Weather Statement	BOU	Logan	41 min
Jul 28, 2:45 PM MDT	Special Weather Statement	BOU	Arapahoe	45 min
Jul 28, 2:47 PM MDT	Special Weather Statement	BOU	Lincoln	43 min
Jul 28, 2:48 PM MDT	Areal Flood Advisory	BOU	Boulder, Weld	117 min
Jul 28, 2:52 PM MDT	Severe Thunderstorm Warning	BOU	Arapahoe, Douglas, Elbert	38 min
Jul 28, 2:58 PM MDT	Severe Thunderstorm Warning	BOU	Elbert, Lincoln	32 min
Jul 28, 3:04 PM MDT	Severe Thunderstorm Warning	BOU	Logan	41 min
Jul 28, 3:06 PM MDT	Areal Flood Advisory	BOU	Douglas	113 min
Jul 28, 3:09 PM MDT	Areal Flood Advisory	BOU	Morgan, Weld	2 hr
Jul 28, 3:11 PM MDT	Severe Thunderstorm Warning	BOU	Logan	34 min
Jul 28, 3:15 PM MDT	Severe Thunderstorm Warning	BOU	Adams	30 min
Jul 28, 3:18 PM MDT	Areal Flood Advisory	BOU	Adams, Arapahoe	117 min
Jul 28, 3:28 PM MDT	Severe Thunderstorm Warning Destructive damage threat	BOU	Logan	32 min
Jul 28, 3:31 PM MDT	Areal Flood Advisory	BOU	Logan	3 hr
Jul 28, 3:32 PM MDT	Severe Thunderstorm Warning	BOU	Elbert, Lincoln	43 min
Jul 28, 3:40 PM MDT	Areal Flood Advisory	BOU	Elbert, Lincoln	3 hr
Jul 28, 3:53 PM MDT	Special Weather Statement	BOU	Morgan	37 min
Jul 28, 3:56 PM MDT	Severe Thunderstorm Warning	BOU	Lincoln	34 min
Jul 28, 3:58 PM MDT	Severe Thunderstorm Warning	BOU	Logan, Washington	32 min
Jul 28, 4:00 PM MDT	Severe Thunderstorm Warning	BOU	Morgan	30 min
Jul 28, 4:02 PM MDT	Areal Flood Advisory	BOU	Logan	3 hr
Jul 28, 4:11 PM MDT	Severe Thunderstorm Warning	BOU	Adams, Washington	34 min
Jul 28, 4:22 PM MDT	Severe Thunderstorm Warning	BOU	Washington	38 min
Jul 28, 4:28 PM MDT	Severe Thunderstorm Warning	BOU	Lincoln	47 min
Jul 28, 4:40 PM MDT	Areal Flood Advisory	BOU	Adams, Morgan, Washington	3 hr
Jul 28, 4:45 PM MDT	Severe Thunderstorm Warning	BOU	Washington	45 min
Jul 28, 4:48 PM MDT	Severe Thunderstorm Warning	BOU	Lincoln	42 min
Jul 28, 5:00 PM MDT	Areal Flood Advisory	BOU	Morgan, Washington	4 hr
Jul 28, 5:07 PM MDT	Areal Flood Advisory	BOU	Lincoln	3 hr
Jul 28, 5:15 PM MDT	Severe Thunderstorm Warning	BOU	Lincoln	45 min
Jul 28, 5:20 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BOU	Washington	40 min
Jul 28, 5:50 PM MDT	Special Weather Statement	BOU	Washington	40 min

Nearby

Severe Thunderstorm Warnings in Colorado, 2026 Every severe thunderstorm warning in 2026

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.