Severe Thunderstorm Watch 170

Issued

May 14, 2021, 3:46 PM MDT (21:46 UTC)

Expired

May 14, 2021, 10:00 PM MDT

In force

6 hr

Issued by

the Storm Prediction Center

Largest hail expected

2.5 in

Strongest gust expected

70 kt

The Goodland radar (KGLD), 51 km from the middle of the area, began a volume at 21:48 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.

Two or more tornadoes

20%

One or more EF2 to EF5 tornadoes

5%

Ten or more severe wind reports

50%

One or more gusts of 65 knots or more

50%

Ten or more severe hail reports

40%

One or more hailstones of 2 inches or more

40%

Six or more combined severe hail and wind reports

80%

• Mesoscale Discussion 609 Severe potential...watch unlikelyMay 14, 1:56 PM MDT
• Mesoscale Discussion 610 Severe potential...watch possibleMay 14, 2:54 PM MDT
• Mesoscale Discussion 614 Severe thunderstorm watch 170May 14, 5:26 PM MDT
• Mesoscale Discussion 615 Severe thunderstorm watch 170May 14, 6:10 PM MDT
• Mesoscale Discussion 617 Severe thunderstorm watch 170May 14, 8:42 PM MDT

841 
WWUS20 KWNS 142144
SEL0  
SPC WW 142144
COZ000-KSZ000-NEZ000-150400-

URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 170
NWS Storm Prediction Center Norman OK
445 PM CDT Fri May 14 2021

The NWS Storm Prediction Center has issued a

* Severe Thunderstorm Watch for portions of 
  Eastern Colorado
  Western Kansas
  Far southwest Nebraska

* Effective this Friday afternoon and evening from 445 PM until
  1100 PM CDT.

* Primary threats include...
  Scattered damaging winds and isolated significant gusts to 80
    mph possible
  Scattered large hail and isolated very large hail events to 2.5
    inches in diameter possible
  A tornado or two possible

SUMMARY...Initial discrete cells should develop off the Palmer
Divide region and spread east into northwest Kansas. Additional
cells may spread northeast from the Raton Mesa region into southwest
Kansas. Eventual consolidation into an organized cluster is possible
later this evening.

The severe thunderstorm watch area is approximately along and 90
statute miles north and south of a line from 15 miles south of Limon
CO to 40 miles north northeast of Dodge City KS. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU0).

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REMEMBER...A Severe Thunderstorm Watch means conditions are
favorable for severe thunderstorms in and close to the watch area.
Persons in these areas should be on the lookout for threatening
weather conditions and listen for later statements and possible
warnings. Severe thunderstorms can and occasionally do produce
tornadoes.

&&

OTHER WATCH INFORMATION...CONTINUE...WW 169...

AVIATION...A few severe thunderstorms with hail surface and aloft to
2.5 inches. Extreme turbulence and surface wind gusts to 70 knots. A
few cumulonimbi with maximum tops to 550. Mean storm motion vector
28035.

...Grams

Severe Thunderstorm Watches in Kansas, 2021Severe Thunderstorm Watches in Colorado, 2021Every severe thunderstorm watch 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.