Suppression Forecast
Issued by NWS Burlington, VT

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FNUS71 KBTV 272252
FWSBTV

Spot Forecast for post mills test...Thetford Fire Dept
National Weather Service Burlington VT
652 PM EDT Thu Apr 27 2017

Forecast is based on ignition time of 0800 EDT on April 28.
If conditions become unrepresentative...contact the National Weather
Service.

Please contact our office at (802) 658-0207, if you have questions
or concerns with this forecast.

.DISCUSSION...
Showers will be likely over the area at the start of the period on
Friday...but will quickly exit the area by midday. Sunshine and
drier weather will develop during the afternoon hours. The dry
weather continues Friday night...but clouds will be on the
increase right through a good part of Saturday. Scattered showers
are also expected to move across the area on Saturday...mainly
from mid-morning through the late afternoon hours. Rainfall
amounts on Saturday will generally be a tenth of an inch or less.
Humidities on Saturday will be slightly higher than Friday with
wind speeds on Saturday generally under 10 mph.

.FRIDAY...

Sky/weather.........Mostly cloudy (80-90 percent), then becoming
                    sunny (20-30 percent) in the afternoon. Showers
                    likely early in the morning, then ending by midday.
Chance of pcpn......60 percent.
Begin/end of pcpn...Showers to end around midday.
Max temperature.....Around 72.
Min humidity........42 percent.
Wind (20 ft)........West winds 6 to 10 mph.
Mixing height.......900-2500 ft AGL, increasing to 5200-5400 ft
                    AGL in the afternoon.
Transport winds.....South 6 to 7 mph, becoming west 8 to 17 mph in
                    the late morning and afternoon hours.
Haines Index........3 to 4 or very low potential for large plume
                    dominated fire growth to or low potential for
                    large plume dominated fire growth.

TIME (EDT)      8 AM   10 AM  NOON   2 PM   4 PM
Sky (%).........100    91     100    44     7
Weather cov.....LIKELY CHANCE S CHC
Weather type....RNSHWR RNSHWR RNSHWR NONE   NONE
Tstm cov........
Chc of pcpn (%).60     30     20     10     10
Temp............56     62     69     75     77
RH..............93     81     65     51     44
20 ft wind......S 7    SW 6   SW 7   W 10   W 10
20 ft wind gust.       10     10     15     15
Mix hgt (ft)....900    2500   4000   5400   5300
Transport wind..S 6    SW 8   W 13   W 16   W 18
Haines index....3      3      3      3      4

.FRIDAY NIGHT...

Sky/weather.........Partly cloudy (20-30 percent), then becoming
                    mostly cloudy (50-60 percent) after midnight.
Chance of pcpn......10 percent.
Begin/end of pcpn...
Min temperature.....Around 50.
Max humidity........86 percent.
Wind (20 ft)........Southwest winds 5 to 8 mph in the evening,
                    becoming light.
Mixing height.......2500-3800 ft AGL, decreasing to 0-1200 ft AGL
                    early in the evening.
Transport winds.....West 7 to 16 mph, becoming southwest 2 to 6 mph
                    after midnight.
Haines Index........3 to 4 or very low potential for large plume
                    dominated fire growth to or low potential for
                    large plume dominated fire growth.

TIME (EDT)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
Sky (%).........3      8      18     29     39     49
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
Chc of pcpn (%).10     10     10     0      0      0
Temp............73     67     64     60     57     53
RH..............47     47     50     53     57     71
20 ft wind......W 8    SW 7   SW 6   SW 5   SW 3   S 3
20 ft wind gust.15     10                   5      5
Mix hgt (ft)....3800   1200   700    300    BLW100 BLW100
Transport wind..W 16   W 10   W 8    W 6    SW 2   SW 2
Haines index....4      4      4      4      3      3

.SATURDAY...

Sky/weather.........Mostly cloudy (70-80 percent). Scattered showers
from mid-morning through mid-afternoon.
Chance of pcpn......30 percent.
Begin/end of pcpn...
Max temperature.....Around 72.
Min humidity........44 percent.
Wind (20 ft)........Light winds, becoming west 5 to 13 mph by midday.
Mixing height.......200-2000 ft AGL, increasing to 2700-3600 ft AGL
                    in the afternoon.
Transport winds.....Southwest 2 to 9 mph, becoming west 13 to 16
                    mph in the afternoon.
Haines Index........3 to 4 or very low potential for large plume
                    dominated fire growth to or low potential for
                    large plume dominated fire growth.

TIME (EDT)      6 AM   8 AM   10 AM  NOON   2 PM   4 PM
Sky (%).........59     70     80     80     70     63
Weather cov.....              CHANCE CHANCE S CHC  S CHC
Weather type....NONE   NONE   RNSHWR RNSHWR RNSHWR RNSHWR
Tstm cov........
Chc of pcpn (%).10     10     30     30     20     20
Temp............50     54     58     62     66     70
RH..............86     80     72     67     61     49
20 ft wind......S 3    S 5    SW 7   SW 9   W 12   W 13
20 ft wind gust.5                    10     15     15
Mix hgt (ft)....200    700    1000   2000   3600   3000
Transport wind..SW 2   SW 3   SW 5   SW 9   W 16   W 15
Haines index....4      4      4      3      3      3

$$
Forecaster...Evenson
Requested by...Chad Whitcomb
Type of request...PRESCRIBED
.TAG 1707910.0/BTV
.EMAIL chad@whitcombwelding.com


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