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CRAS Daily Products for Northern Canada

Here is today's 72-hour forecast, initialized at 12 UTC on 21 Sep 07. These forecast products are produced by the CIMSS Regional Assimilation System (CRAS) model (48km resolution). The daily 00 and 12 UTC forecast results are usually available at approximately 03:45 UTC and 15:45 UTC respectively. DISCLAIMER.

CRASNOTE:

This forecast is initialized using the 06UTC/18UTC Global Forecast System forecasts from the National Centers for Environmental Prediction (NCEP).

FORECAST MAPS

Fcst	Sfc/500 hPa	Surface	Surface	PBL	Surface	850 hPa	700 hPa	500 hPa	300 hPa	Image	Image
Initial	pcp/mslp/Dz	spd/dir	rainrate	PBL RH	total PW	T/wind	VV/wind	vort/wind	spd/dir	11um	6.7um
06 hr	pcp/mslp/Dz	spd/dir	rainrate	PBL RH	total PW	T/wind	VV/wind	vort/wind	spd/dir	11um	6.7um
12 hr	pcp/mslp/Dz	spd/dir	rainrate	PBL RH	total PW	T/wind	VV/wind	vort/wind	spd/dir	11um	6.7um
18 hr	pcp/mslp/Dz	spd/dir	rainrate	PBL RH	total PW	T/wind	VV/wind	vort/wind	spd/dir	11um	6.7um
24 hr	pcp/mslp/Dz	spd/dir	rainrate	PBL RH	total PW	T/wind	VV/wind	vort/wind	spd/dir	11um	6.7um
30 hr	pcp/mslp/Dz	spd/dir	rainrate	PBL RH	total PW	T/wind	VV/wind	vort/wind	spd/dir	11um	6.7um
36 hr	pcp/mslp/Dz	spd/dir	rainrate	PBL RH	total PW	T/wind	VV/wind	vort/wind	spd/dir	11um	6.7um
42 hr	pcp/mslp/Dz	spd/dir	rainrate	PBL RH	total PW	T/wind	VV/wind	vort/wind	spd/dir	11um	6.7um
48 hr	pcp/mslp/Dz	spd/dir	rainrate	PBL RH	total PW	T/wind	VV/wind	vort/wind	spd/dir	11um	6.7um
54 hr	pcp/mslp/Dz	spd/dir	rainrate	PBL RH	total PW	T/wind	VV/wind	vort/wind	spd/dir	11um	6.7um
60 hr	pcp/mslp/Dz	spd/dir	rainrate	PBL RH	total PW	T/wind	VV/wind	vort/wind	spd/dir	11um	6.7um
66 hr	pcp/mslp/Dz	spd/dir	rainrate	PBL RH	total PW	T/wind	VV/wind	vort/wind	spd/dir	11um	6.7um
72 hr	pcp/mslp/Dz	spd/dir	rainrate	PBL RH	total PW	T/wind	VV/wind	vort/wind	spd/dir	11um	6.7um
Loop	pcp/mslp/Dz	spd/dir	rainrate	PBL RH	total PW	T/wind	VV/wind	vort/wind	spd/dir	11um	6.7um
Fcst	Sfc/500 hPa	Surface	Surface	PBL	Surface	850 hPa	700 hPa	500 hPa	300 hPa	Image	Image

LOOPS OF SURFACE RADIATION PARAMETERS

   Near IR surface flux (SNI) (watts/m**2)
   Visible surface flux (SVI) (watts/m**2)
   Long wave up (LWU) (watts/m**2)
   Long wave down (LWD) (watts/m**2)
   Total long wave (LTO) (watts/m**2)
   Total short wave (STO) (watts/m**2)

Loop	SVIS	SNIS	STOT	LWD	LWUP	LTOT	RTOT

About this Forecast

The purpose of the CRAS is to test the use of satellite observations in a numerical prediction model. The quality of a numerical forecast depends on having accurate observations of the environment to define the forecast model's initial state.

The CRAS is nested within the National Centers for Environmental Prediction's (NCEP) Global Forecast System (GFS) operational forecast. The combined analysis/forecast cycle takes 300 minutes to execute. Forecast products are available approximately 6 hours after synoptic time (00UTC and 12UTC).

Publications referring to CRAS