589  
FNUS74 KEWX 202212  
FWSEWX  
 
SPOT FORECAST FOR STROKE...USFWS  
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX  
512 PM CDT TUE JUN 20 2017  
 
FORECAST IS BASED ON REQUEST TIME OF 1800 CDT ON JUNE 20.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
   
DISCUSSION
 
 
WARM AND DRY CONDITIONS ARE FORECAST THROUGH THE EVENING INTO THE  
OVERNIGHT HOURS ACROSS THE TEXAS HILL COUNTRY. TEMPERATURES HAVE  
PEAKED IN THE MID-90S WITH NORTHEAST WINDS BETWEEN 5 AND 10 MPH.  
WINDS THROUGH THE EVENING WILL SLOWLY DECREASE. WINDS OVERNIGHT  
WILL BE LIGHT OUT OF THE NORTHEAST BECOMING MORE NORTHERLY EARLY  
WEDNESDAY MORNING AROUND SUNRISE. RELATIVE HUMIDITY VALUES ARE  
CURRENTLY IN THE UPPER 30 PERCENT RANGE AND WILL IMPROVE THROUGH  
THE EVENING INTO THE OVERNIGHT HOURS, REACHING 60 PERCENT BY 10 PM  
AND CONTINUING TO IMPROVE TO NEAR 90 PERCENT BY DAYBREAK WEDNESDAY.  
WINDS WILL INCREASE WEDNESDAY WITH NORTHEAST WINDS AROUND 10 MPH BY  
THE AFTERNOON, GUSTING TO 15 MPH.  
   
REST OF TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR (10-20 PERCENT).  
CWR.................0 PERCENT.  
LAL.................NO TSTMS.  
MIN TEMPERATURE.....AROUND 70.  
MAX HUMIDITY........84 PERCENT.  
EYE LEVEL WINDS.....NORTHEAST WINDS 6 TO 8 MPH.  
WIND (20 FT)........NORTHEAST WINDS 6 TO 8 MPH.  
MIXING HEIGHT.......3700-5200 FT AGL DECREASING TO 200-1400 FT AGL  
IN THE LATE EVENING AND OVERNIGHT.  
TRANSPORT WINDS.....NORTHEAST 7 TO 16 MPH SHIFTING TO THE NORTH 5  
TO 6 MPH AFTER MIDNIGHT.  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
 
TIME (CDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM  
SKY (%).........14 11 12 12 13 13 13 13 13 14 14 11  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
CWR.............0 0 0 0 0 0 0 0 0 0 0 0  
LAL.............1 1 1 1 1 1 1 1 1 1 1 1  
TEMP............91 90 87 83 80 78 77 76 75 73 72 71  
RH..............42 42 46 55 60 64 69 71 74 79 81 81  
20 FT WIND DIR..NE NE NE NE NE NE NE NE NE NE NE NE  
20 FT WIND SPD..8 7 6 6 6 6 6 6 6 6 6 6  
20 FT WIND GUST.15 10 10  
EYE LVL WND DIR.NE NE NE NE NE NE NE NE NE NE NE NE  
EYE LVL WND SPD.5 4 4 4 4 4 4 4 4 4 4 4  
EYE LVL WND GST.15 10 10  
MIX HGT (KFT)...5.2 4.8 3.7 1.4 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2  
TRANSP WIND DIR.NE NE NE NE NE NE NE NE NE N N N  
TRANSP WIND SPD.16 15 14 12 10 8 7 6 5 5 5 6  
HAINES INDEX....4 4 4 4 4 4 4 4 4 4 4 4  
   
WEDNESDAY
 
 
SKY/WEATHER.........SUNNY (10-20 PERCENT).  
CWR.................0 PERCENT.  
LAL.................NO TSTMS.  
MAX TEMPERATURE.....AROUND 92.  
MIN HUMIDITY........36 PERCENT.  
EYE LEVEL WINDS.....NORTHEAST WINDS 6 TO 12 MPH.  
WIND (20 FT)........NORTHEAST WINDS 6 TO 12 MPH.  
MIXING HEIGHT.......200-900 FT AGL INCREASING TO 6500-7200 FT AGL.  
TRANSPORT WINDS.....NORTH 7 TO 14 MPH INCREASING TO NORTHEAST  
AROUND 28 MPH.  
HAINES INDEX........4 TO 5 OR LOW POTENTIAL TO MODERATE POTENTIAL  
FOR LARGE PLUME DOMINATED FIRE GROWTH.  
 
TIME (CDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........8 5 7 8 10 13 17 20 21 23 24 28  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
CWR.............0 0 0 0 0 0 0 0 0 0 0 0  
LAL.............1 1 1 1 1 1 1 1 1 1 1 1  
TEMP............70 71 74 78 82 85 88 90 91 92 92 91  
RH..............84 79 71 62 55 48 42 38 37 36 36 38  
20 FT WIND DIR..N N N N NE NE NE NE NE NE NE NE  
20 FT WIND SPD..6 6 6 7 8 9 9 10 11 11 11 11  
20 FT WIND GUST. 10 10 15 15 15 15 20 20 20 20  
EYE LVL WND DIR.N N N N NE NE NE NE NE NE NE NE  
EYE LVL WND SPD.4 4 4 4 5 5 5 6 7 7 7 7  
EYE LVL WND GST. 10 10 15 15 15 15 20 20 20 20  
MIX HGT (KFT)...0.2 0.2 0.9 2.2 2.9 3.4 4.6 5.2 5.7 6.7 7.2 6.5  
TRANSP WIND DIR.N N N N N N NE NE NE NE NE NE  
TRANSP WIND SPD.7 8 10 14 17 21 24 26 28 28 28 28  
HAINES INDEX....4 4 4 4 5 5 5 5 5 5 5 5  
 

 
FORECASTER...12  
REQUESTED BY...JEFFREY ADAMS  
TYPE OF REQUEST...WILDFIRE  
.TAG 1711331.0/EWX  
.EMAIL JEFFREY_ADAMS@FWS.GOV  
 
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