The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended.
Click for Watch Status Reports
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 335
NWS Storm Prediction Center Norman OK
145 PM MDT Tue Aug 7 2018
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
The central and southern Front Range of Colorado
Extreme northeastern New Mexico
* Effective this Tuesday afternoon and evening from 145 PM until
900 PM MDT.
* Primary threats include...
Scattered large hail and isolated very large hail events to 2.5
inches in diameter likely
Isolated damaging wind gusts to 70 mph possible
A tornado or two possible
SUMMARY...Thunderstorm development is expected by 21z along the
Front Range from Colorado Springs southward. The storm environment
will favor splitting supercells with very large hail and damaging
gusts, plus the potential for an isolated tornado. The severe-storm
threat should persist into the late evening hours as storms spread
southeastward onto the High Plains.
The severe thunderstorm watch area is approximately along and 55
statute miles east and west of a line from 40 miles west northwest
of Limon CO to 35 miles southeast of Raton NM. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU5).
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
AVIATION...A few severe thunderstorms with hail surface and aloft to
2.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A
few cumulonimbi with maximum tops to 550. Mean storm motion vector