Spot Forecast
Issued by NWS Denver/Boulder, CO

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FNUS75 KBOU 220102
FWSBOU

Spot Forecast for Weld County Fire...Weld County OEM
National Weather Service Denver/Boulder CO
702 PM MDT Thu Mar 21 2024

If conditions become unrepresentative...contact the National Weather
Service.

.DISCUSSION...It will be breezy at times this evening. While most
of the time winds should be out of the west or northwest around 10
mph, there will likely be a few periods of gusty west to northwest
winds to 20-25 mph. Those gustier winds would favor from now until
8 pm, and then again from 9-10 mph with passing virga
(precipitation not reaching the ground) and resultant gusty
outflows.

A cool front is expected to arrive around 1030-1130 pm, resulting
in one more surge of gusty winds to around 25-30 mph - this time
from the north. Temperatures will be quite mild with low humidity
readings ahead of this front. That said, there will be slow
improvement from around 20% at the current time to 30-35% by 9 pm.

Winds will weaken overnight and become light from the north.
Temperatures will drop with clearing skies, with lows around 30-32
degrees and humidities improving to 85 percent.

.TONIGHT...

Sky/weather.........Partly cloudy(30-35%) until 1900, then mostly
                    cloudy(60-65%) until 2400, then partly cloudy.
CWR.................1 percent.
LAL.................1.
Min temperature.....Around 32.
Max humidity........85%.
Wind (20 ft)........Northwest winds 12-16 mph with gusts to around
                    24 mph until 2200, then north around 14 mph
                    with gusts to around 22 mph until 2400, then
                    decreasing to 4-8 mph by 0300.
Mixing height.......Up to 2000 Ft AGL until 1930...then below
1000 FT AGL.
Transport winds.....Northwest 11-16 mph until 2400, then north 8-16
                    mph until 0500, then light.
Smoke dispersal.....Poor.
Haines Index........3 or very low potential for large plume
                    dominated fire growth.

TIME (MDT)      7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........32  51  69  66  66  50  33  25  14  11  10
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0   0   0   0   0   0   0   0   0
LAL.............1   1   1   1   1   1   1   1   1   1   1
Temp............63  58  54  51  46  42  40  38  37  35  33
RH..............19  25  34  37  49  62  64  70  72  78  82
20 FT wind dir..NW  NW  NW  NW  N   N   N   N   N   N   NW
20 FT wind spd..15  12  12  12  14  16  13  9   7   6   5
20 FT wind gust.24  20  18  18  22  25  21  15  12  9   7
Mix hgt (kft)...0.6 0.5 0.5 0.5 0.5 0.5 0.6 0.6 0.6 0.5 0.5
Transp wind dir.W   NW  W   NW  NW  N   N   N   N   N   NW
Transp wind spd.15  15  13  12  14  16  14  12  10  8   7
Haines index....3   3   3   3   3   3   3   3   3   3   3
Vrate kt-ft/1K..6   7   5   5   4   5   7   6   6   3   3
SmokeDispersion.P   P   P   P   P   P   P   P   P   P   P

$$
Forecaster...Barjenbruch
Requested by...David Burns
Type of request...WILDFIRE
.TAG 2408145.0/BOU
.DELDT 03/21/24
.FormatterVersion 1.0.26
.EMAIL dburns@weldgov.com


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