FNUS73 KGRR 131500 AAA
FWSGRR

FIRE WEATHER PLANNING FORECAST FOR F-34...UPDATED
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
1100 AM EDT WED APR 13 2011

...UPDATED FOR LOWER MINIMUM RELATIVE HUMIDITIES...

FORECAST IS BASED ON IGNITION TIME OF 1200 EDT ON APRIL 13.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
OBSERVED RELATIVE HUMIDITIES WERE ALREADY BELOW 30 PERCENT AS OF
10 AM THIS MORNING...SO MINIMUM VALUES WILL PROBABLY BE IN THE
TEENS THIS AFTERNOON.

FAIR WEATHER WILL CONTINUE TODAY INTO THIS EVENING AS HIGH PRESSURE
REMAINS OVER THE AREA. CLOUDS WILL INCREASE
TONIGHT AND BY LATE TONIGHT INTO THURSDAY THERE WILL BE THE CHANCE
OF A FEW LIGHT RAIN SHOWERS OR SPRINKLES. FAIR WEATHER WILL RETURN
AS HIGH PRESSURE PUSHES BACK INTO THE REGION THURSDAY NIGHT INTO
EARLY FRIDAY. A BETTER CHANCE OF RAIN WILL ARRIVE FRIDAY AFTERNOON
INTO THE FIRST HALF OF WEEKEND AS LOW PRESSURE MOVES IN FROM THE
SOUTHWEST.


.REST OF TODAY...

SKY/WEATHER.........MOSTLY SUNNY (40-50 PERCENT).
TEMPERATURE.........58 AT IGNITION...MAX 61.
RH..................25 PERCENT AT IGNITION...MIN 19 PERCENT.
WIND (20 FT)........WINDS SOUTHWEST AT 8 MPH AT
                    IGNITION...OTHERWISE NORTHWEST WINDS 6 TO 11
                    MPH.
MIXING WINDS........NORTHWEST 2 TO 8 MPH.
MIXING HEIGHT.......2500 FT AGL AT IGNITION... DECREASING TO
                    1100 FT AGL IN THE EVENING.
SMOKE DISPERSAL.....0-200 (POOR TO FAIR).

TIME (EDT)      NOON   2 PM   4 PM   6 PM
SKY (%).........43     58     56     53
WEATHER COV.....
WEATHER TYPE....NONE   NONE   NONE   NONE
TEMP............58     61     57     56
RH..............25     19     31     37
20 FT WIND......SW 6   W 10   W 9    NW 7
20 FT GUST......10     20     15     10

$$
FORECASTER...MEADE
REQUESTED BY...LEE OSTERLAND
TYPE OF REQUEST...PRESCRIBED
.TAG 20110413.F34__.01/GRR