Severe Thunderstorm Warning 145, NWS Denver/Boulder, CO

Issued

Aug 19, 2021, 5:04 PM MDT (23:04 UTC)

Expired

Aug 19, 2021, 5:29 PM MDT

In force

25 min

Issued by

NWS Denver/Boulder, CO

Area

Storm-based polygon

Hail

1.5 in

Wind

60.0 mph

County Logan County, CO

The Goodland radar (KGLD), 175 km from the middle of the area, began a volume at 23:07 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.

525 
WUUS55 KBOU 192304
SVRBOU
COC075-192345-
/O.NEW.KBOU.SV.W.0145.210819T2304Z-210819T2345Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Denver CO
504 PM MDT Thu Aug 19 2021

The National Weather Service in Denver Colorado has issued a

* Severe Thunderstorm Warning for...
  Southeastern Logan County in northeastern Colorado...

* Until 545 PM MDT.

* At 504 PM MDT, a severe thunderstorm was located near Fleming, or
  15 miles east of Sterling, moving northeast at 20 mph.

  HAZARD...Ping pong ball size hail and 60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees. People and 
           animals outdoors will be injured. Expect hail damage to 
           roofs, siding, windows, and vehicles.

* This severe thunderstorm will be near...
  Fleming around 515 PM MDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4071 10265 4070 10267 4062 10266 4055 10293
      4081 10302 4091 10267
TIME...MOT...LOC 2304Z 241DEG 16KT 4067 10291 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.50 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

RPK

889 
WWUS55 KBOU 192329
SVSBOU

Severe Weather Statement
National Weather Service Denver CO
529 PM MDT Thu Aug 19 2021

COC075-192339-
/O.CAN.KBOU.SV.W.0145.000000T0000Z-210819T2345Z/
Logan CO-
529 PM MDT Thu Aug 19 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN LOGAN COUNTY IS
CANCELLED...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning has been cancelled.

A Tornado Watch remains in effect until 1100 PM MDT for northeastern
Colorado.

LAT...LON 4071 10265 4070 10267 4062 10266 4055 10293
      4081 10302 4091 10267
TIME...MOT...LOC 2327Z 241DEG 16KT 4073 10278 

$$

RPK

Severe Thunderstorm Warnings in Colorado, 2021Every severe thunderstorm warning in 2021

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.