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For Boundary Layer* Information Prediction for Soaring Potential Over Time Blipspot for

from TJ's RASP forecasts BLIPSPOT: 19 Apr 2026 → Apr 18 22:06 PDT for Sunday TigerLZ Windgram

ForecastPd	16hrs	17hrs	18hrs	19hrs	20hrs	21hrs	22hrs	23hrs	24hrs	25hrs	26hrs	27hrs	ForecastPd
TIGER_w2	gridpt=	17,18
Lat,Lon=	47.498,-122.021
VALID.TIME	09 PDT	10 PDT	11 PDT	12 PDT	13 PDT	14 PDT	15 PDT	16 PDT	17 PDT	18 PDT	19 PDT	20 PDT	VALID.TIME
10M_Wind_Dir	182°	132°	148°	153°	160°	161°	162°	162°	353°	2°	203°	141°	10M_Wind_Dir
Sfc_Wind_Sp_Kt	5	4	11	11	10	9	6	4	9	6	3	1	Sfc_Wind_Sp_Kt
10M_Wind_Sp_Kt	6	4	12	12	10	9	6	4	9	6	4	1	10M_Wind_Sp_Kt
Treetop_WSp_Kt	9	9	18	17	15	13	8	5	12	8	5	2	Treetop_WSp_Kt
Lev_Abv_WSp_Kt	15	14	21	20	17	15	10	6	13	9	6	3	Lev_Abv_WSp_Kt
Up_Velocity fpm	86	208	251	338	395	415	408	371	160	81	0	0	Up_Velocity fpm
cm/s_Convergence	33	148	39	15	-34	-33	-70	-54	-18	-11	2	-8	cm/s_Convergence
MaxSoar1.1m/s	632	632	1366	2763	4173	5068	5649	6060	632	632	632	632	MaxSoar1.1m/s
MaxSoar_AGL	0	0	734	2131	3541	4436	5017	5428	0	0	0	0	MaxSoar_AGL
MaxSoar_clds	632	632	1366	2763	4173	5068	5649	6060	632	632	632	632	MaxSoar_clds
Bouy/Shr_Ratio	1	1	1	2	2	3	4	4	1	1	0	0	Bouy/Shr_Ratio
BL_Top_TI=0	1023	2254	2611	4342	6197	7433	8382	9488	1608	1339	659	659	BL_Top_TI=0
BL_Depth_AGL	392	1622	1980	3710	5565	6801	7751	8856	976	707	27	27	BL_Depth_AGL
Avg_BLWindSpd	12	21	24	20	16	13	9	8	12	9	3	1	Avg_BLWindSpd
Avg_BlWindDir	144	129	139	147	153	148	151	142	347	347	203	140	Avg_BlWindDir
Wind_Shear	15	24	15	3	4	4	1	6	3	5	0	0	Wind_Shear
BLTop_WdSp	19	28	26	13	6	6	7	10	11	10	3	1	BLTop_WdSp
BLTopWDir	134	135	145	162	154	143	165	155	353	337	203	140	BLTopWDir
CAPE_TSpoten	0	0	2	6	15	4	53	88	198	124	98	0	CAPE_TSpoten
CUbase_LCL	7684	8377	8920	9370	9864	10234	10523	10751	6972	6481	5134	5599	CUbase_LCL
ODpot_if_cu	-11029	-9287	-9069	-9008	-7117	-5776	-4814	-3389	-7863	-7330	-7226	-8117	ODpot_if_cu
ODbase_allclds	12052	11541	11681	13349	13314	13209	13196	12877	9470	8669	7885	8776	ODbase_allclds
BL_Cloud_%	0	0	0	0	0	0	0	0	0	0	0	0	BL_Cloud_%
Sfc_Heating	9	54	77	105	113	105	86	51	36	-1	-6	-12	Sfc_Heating
Temp@2m	67.6	71.1	73.4	75.8	78.0	79.2	80.1	80.9	75.0	72.7	68.6	62.7	Temp@2m
DewPt@2m	38.6	38.4	38.4	38.7	38.7	38.3	37.9	38.0	48.4	48.8	53.1	46.6	DewPt@2m
msl_pressure	1010	1009	1009	1009	1008	1008	1007	1007	1007	1007	1008	1009	msl_pressure
1hr_rain_acc	0	0	0	0	0	0	0	0	0	0	0	0	1hr_rain_acc
Hgt_Variab_	867	762	687	1094	1183	1829	1363	1370	409	657	865	199	Hgt_Variab

Trigger_Time	& 2m Sfc	Temp	For_times:	+++=earlier		unlikely	=not_found)
MaxSoarAGL_=	300	500	1000	1500	2000	2500	3000
by=	10:24	10:40	11:11	11:32	11:54	12:15	12:36
When_sfc_temp=	72.0	72.7	73.9	74.7	75.6	76.4	77.2

TRIGGER_TIME	&	SURFACE_(2m)	TEMPERATURE
(+++	=	before_first_time,	unlikely	=	not_found)
AGL_Lift_to=	1500	2000	2500	3000
by=	11:32	11:54	12:15	12:36
When_sfc_temp=	74.7	75.6	76.4	77.2
BL_Depth_AGL_=	1500	2000	2500	3000
by=	09:54	11:00	11:18	11:35
When_sfc_temp=	70.8	73.4	74.1	74.8

* The Boundary Layer is also known as the Mixing layer and its top is also called the mixing height. It is the top of thermally induced lift and the level at which the Thermal Index goes to zero.
RASP Blanchard RASP Tiger RASP Fraser Valley RASP PNW big picture