Alert archive / Colorado / High Wind Watches in 2019

High Wind Watch 5, NWS Denver/Boulder, CO

April 9, 2019Elbert County, Lincoln County, Colorado

NWS Denver/Boulder, CO issued this high wind watch at Apr 9, 2019, 4:06 AM MDT for Elbert County, Lincoln County, Colorado. It took effect at Apr 10, 2019, 12:00 PM MDT. It was in force for .

The area

The counties it named.

The facts

Issued
Apr 9, 2019, 4:06 AM MDT (10:06 UTC)
In effect from
Apr 10, 2019, 12:00 PM MDT
Expired
Apr 9, 2019, 11:40 AM MDT
In force
Issued by
NWS Denver/Boulder, CO

Counties Elbert County, CO, Lincoln County, CO

The radar

The Pueblo radar (KPUX), 81 km from the middle of the area, began a volume at 10:12 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 nearest sounding before it

Denver, CO (KDEN), launched 00:00Z, 10.1 hours before the alert went out and 96 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.

Skew-T log-pSkew-T log-p diagram, Denver, CO at 00:00Z on 2019-04-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Denver, CO at 00:00Z on 2019-04-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -5 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
3370 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
-5 m²/s²
0-3 km storm-relative helicity
65 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this high wind watch 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 high wind watch went out at Apr 8, 9:04 PM MDT, 7 hours 2 minutes earlier.

Area forecast discussion, Apr 8, 9:04 PM MDT, 7 hours 2 minutes before
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Hazardous weather outlook, Apr 8, 9:54 AM MDT, 18 hours 12 minutes before
Hazardous Weather Outlook
National Weather Service Denver/Boulder CO
954 AM MDT Mon Apr 8 2019

COZ030>051-091600-
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-
954 AM MDT Mon Apr 8 2019

...NEAR RECORD WARMTH THEN COLDER WITH STRONG WINDS AND SNOW
WEDNESDAY NIGHT...

This hazardous weather outlook is for northeast and north central
Colorado.

.DAY ONE...Today and Tonight

West to northwest winds gusting into the 25 to 35 mph range will
continue over the higher mountains today. The winds will spread
into the mountain valleys and foothills, and across most of the
northeast plains this afternoon. Temperatures will be well above
normal with highs in the mid 70s across the northeast plains.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday

Tuesday will be dry with near record high temperatures around 80
degrees on the plains. This will bring a potential for critical
fire weather conditions due to expected gusty southwest winds and
lowering humidity levels over the eastern plains.

A strong storm will move across Colorado on Wednesday into
Thursday with a significantly colder airmass and increased
moisture. Widespread rainfall is expected on Wednesday for the
plains, with snow in the mountains. The precipitation should
change to snow in most areas by late Wednesday afternoon and
continue into Thursday morning. Strong winds are expected
Wednesday afternoon through Thursday, especially over the plains.
Blizzard conditions will be possible once the rain changes to snow
in these areas. Snowfall amounts could be significant in some
places with this storm, so stay tuned for further updates. Friday
and Saturday's weather looks unsettled with a chance of
precipitation along with below normal temperatures.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed today or tonight.

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 9, 11:40 AM MDTHigh Wind WarningBOUElbert, Lincoln48 hr
Apr 9, 11:47 AM MDTBlizzard WarningBOUAdams, Arapahoe, Broomfield, Denver, Douglas, Elbert and 8 more47 hr
Apr 9, 11:47 AM MDTWinter Storm WarningBOUBoulder, Broomfield, Clear Creek, Douglas, Gilpin, Grand and 5 more47 hr
Apr 9, 11:47 AM MDTWinter Weather AdvisoryBOUGrand, Summit33 hr

Nearby

High Wind Watches in Colorado, 2019Every high wind watch in 2019

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.