TIP FORECASTS
TIP =Thermal Index Prediction
Created by Dr. John W. (Jack) Glendening  

TIPs predict the thermal soaring potential at a single location for today, tomorrow, and the day after. The TIP generation scripts are initiated around 1605Z (8:05 amPST, 9:05amPDT - starting with east coast locations), when model predictions based upon that day's 1200Z sounding observations become available.  If all data is immediately available the TIP is posted within 15 minutes, otherwise the program will continue attempting to access that data for up to 90 minutes before posting the results.

Andy Hogben is responsible for TIP processing. If you have TIP related comments, requests, complaints, etc. you can contact Andy at 

Users should check each file's top header date for currency.
ARLINGTON (WA) TIP      CurrentDay    PreviousDay
Based upon MAPS/ETA model soundings for Arlington and NWS Tmax forecasts for Everett.  To be added to the daily TIP email list, you must join the AWO_WX mailing list at groups.google.com (group kawo_wx)
AVENAL (CA) TIP      CurrentDay    PreviousDay
Based upon MAPS/ETA model soundings for Lemoore and NWS Tmax forecasts for Coalinga.  To be added to the daily TIP email list, contact Andy Hogben
CRAZY CREEK (CA) TIP      CurrentDay    PreviousDay
Based upon MAPS/ETA model soundings for Ukiah and NWS Tmax forecasts for Lakeport.  To be added to the daily TIP email list, contact Andy Hogben
EPHRATA (WA) TIP      CurrentDay    PreviousDay
Based upon MAPS/ETA model soundings for Ephrata and NWS Tmax forecasts for Moses Lake.  Not verified by flight observations.  To be added to the daily TIP email list, you must join the EPH_WX mailing list at groups.google.com (group eph_wx)
HARRIS HILL (NY) TIP     CurrentDay     PreviousDay
To be added to the daily TIP email list, contact Andy Hogben
HOLLISTER (CA) TIP      CurrentDay    PreviousDay
Based upon observed Oakland and MAPS/ETA model Vacaville soundings and NWS Tmax forecasts for Hollister.  To be added to the daily TIP email list, visit the Hollister Gliding Club's HTIP email list
HOUSTON (TX) TIP      CurrentDay    PreviousDay
To be added to the daily TIP email list, contact Andy Hogben
HUTCHINSON (KS) TIP      CurrentDay    PreviousDay
To be added to the daily TIP email list, contact Andy Hogben
JEAN (NV) TIP      CurrentDay    PreviousDay
To be added to the daily TIP email list, contact Andy Hogben
MINDEN (NV) TIP      CurrentDay    PreviousDay
Based upon observed and MAPS/ETA model soundings for Reno and NWS Tmax forecasts for Reno.  To be added to the daily TIP email list, contact Andy Hogben
MT-WILLIAMS (CA) TIP      CurrentDay    PreviousDay          Height History
Based upon MAPS/ETA model soundings for Marysville and NWS Tmax forecasts for Marysville, empirically adjusted to be appropriate to high terrain using calibration developed by Milt Hare.  To subscribe or unsubscribe to the daily TIP email list, which also sends the WILLIAMS TIP, visit:  http://www.soaringnet.com/williamstiplist.htm
PUGET SOUND (WA) TIP     CurrentDay     PreviousDay
To be added to the daily TIP email list, contact Andy Hogben
STATE COLLEGE (PA) TIP      CurrentDay    PreviousDay
Based upon observed Pittsburgh and MAPS/ETA model State College soundings and NWS Tmax forecasts for State College.  Not verified by flight observations.  Presently uses morning PIT observed raob in preference to local model predicted sounding, the validity of which has not been tested.  To be added to the daily TIP email list, contact Andy Hogben
TONOPAH (NV) TIP      CurrentDay    PreviousDay
To be added to the daily TIP email list, contact Andy Hogben
TRUCKEE (CA) TIP     CurrentDay    &PreviousDay
Based upon the observed RAOB from Reno and MAPS/ETA model soundings for Truckee with NWS Tmax forecasts for South Lake Tahoe.  To be added to the daily TIP email list, contact Andy Hogben
WILLIAMS (CA) TIP     CurrentDay    PreviousDay
Based upon MAPS/ETA model soundings for Marysville and NWS Tmax forecasts for Marysville.  Intended for Valley predictions - worked reasonably for spring conditions but summer TI predictions greatly overpredicted actual soaring conditions, so caution is advised.  To subscribe or unsubscribe to the daily TIP email list, which also sends the MT-WILLIAMS TIP, visit:  http://www.soaringnet.com/williamstiplist.htm



Link to a description of the TIP program
Link to TIP Sounding Analysis webpage
Link to TIP user's experiences, to learn how other pilots use the TIP
Link to the latest BLIPMAP forecasts
Link to the latest WINDIP Wind/Wave forecast
Link to DrJack's home page