Suppression Forecast
Issued by NWS Grand Rapids, MI

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000
FNUS73 KGRR 221304
FWSGRR

Spot Forecast for Sequel-1...MDNR
National Weather Service Grand Rapids MI
904 AM EDT Sun Apr 22 2018

Forecast is based on ignition time of 1400 EDT on April 22.
If conditions become unrepresentative...contact the National Weather
Service.

Please contact our office at (616) 949-5150, if you have questions
or concerns with this forecast.

.DISCUSSION...
The very dry airmass will continue today.  Sunshine will be abundant
and that will allow for warm surface temperatures that will
climb into the mid 60s around the burn site for the afternoon.
The winds will be from the east...and that will reduce the chance
for a lake breeze to move inland.  Humidity levels in the teens are
expected for the afternoon.

.REST OF TODAY...

Sky/weather.........Sunny (0-10 percent).
Temperature.........64 at ignition...Max 65.
RH..................22 percent at ignition...Min 17 percent.
Wind (20 ft)........Winds east at 10 mph at ignition...otherwise
                    East winds 5 to 10 mph.
Mixing height.......5200 ft AGL at ignition...otherwise 5000-5500
                    ft AGL decreasing to 3300 ft AGL in the
                    evening.
Mixing winds........East 12 to 14 mph.
Smoke dispersal.....600 /excellent/ at ignition. Max...800
                    /excellent/.
Haines Index........5 or moderate potential for large plume
                    dominated fire growth at ignition...max 6.

TIME (EDT)      2 PM   4 PM   6 PM   8 PM   10 PM  MIDNGT
Sky (%).........7      6      7      11     10     8
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
Temp............64     65     64     59     54     48
RH..............22     19     17     20     28     42
20 ft wind......E 10   E 10   E 10   E 9    E 9    E 9
20 ft wind gust.12     12     12     10
Mix hgt (ft)....5200   5500   4400   2300   700    100
Haines index....5      5      6      6      5      5
Smoke Dispersal 600    800    600    300    100    0

.TONIGHT...

Sky/weather.........Mostly clear (5-15 percent).
Temperature.........Min 39.
RH..................Max 76 percent.
Wind (20 ft)........East winds 5 to 10 mph.

$$
Forecaster...Sekelsky
Requested by...Klingler
Type of request...PRESCRIBED
.TAG 1807328.0/GRR
.EMAIL klinglerd@michigan.gov



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