[Paddlewise] Barometer/Altimeter as Weather Predictor

Herewith the weather parameters from yesterday covering the interval before,
during, and after passage of a small but significant front through the Lower
Columbia River region.  

I was just getting off the water at 1 pm PDT (4 pm EDT), some 20 miles east of
the place these weather parameters were recorded, when the front hit.  Even
though this was a small front, conditions changed quickly from mild, mill pond
stuff to 2-3 foot wind waves and moderate rain (where I was).  

Note that there was **very little** pressure change to signal the front.

The front *was* predicted by the NWS (although prediction of the time of its
arrival was vague) and could be seen approaching about an hour before it hit. 
Somebody with his head in a tent, watching the barometer, would have been
*almost clueless* about the front's approach.  OTOH, there was a definite
temperature change, and an obvious change in wind direction and speed.

Time      Temp       Dew Point   Pressure         Wind
EDT(UTC)  F (C)       F (C)      Inches (hPa)     MPH
                                
Latest
1 AM(5)
Sep 06    59.0(15.0) 55.0(12.8)  30.02 (1016)      SSW 5
                                       
Mdnt(4)
Sep 06    59.0(15.0) 55.0(12.8)  30.01 (1016)      WSW 6
       
11 PM(3)
Sep 05    59.0(15.0) 55.0(12.8)  29.99 (1015)      SSW 6

10 PM(2)
Sep 05    60.1(15.6) 55.9(13.3)  29.98 (1015)      SW 6
                                                                                   
9 PM(1)
Sep 05    61.0(16.1) 57.0(13.9)  29.97 (1014)      SSW 8

8 PM(0)
Sep 05   62.1(16.7)  57.9(14.4)  29.97 (1014)      SSW 9

7 PM(23)
Sep 05   62.1(16.7)  57.9(14.4)  29.96 (1014)      SSW 10

6 PM(22)
Sep 05   62(17)      57(14)      29.96 (1014)      SSW 12

5 PM(21)
Sep 05   60(16)      59(15)      29.96 (1014)      S 10 mist

4 PM(20)
Sep 05   60(16)      57(14)      29.95 (1014)      SSW 16 light rain; mist

3 PM(19)
Sep 05   64.0(17.8)  57.9(14.4)  29.93 (1013)      SSW 17

2 PM)18)
Sep 05   64(18)      57(14)      29.92 (1013)      SSW 17 light rain

1 PM(17)
Sep 05   62.1(16.7)  57.0(13.9)  29.91 (1012)      SSW 9

Noon(16)
Sep 05   62 (17)     57(14)      29.91 (1012)      SSW 9

11 AM(15)
Sep 05   55.0(12.8)  52.0(11.1)  29.91 (1012)      ESE 3

10 AM(14)
Sep 05   53.1(11.7)  51.1(10.6)  29.91 (1012)      SE 3

9 AM(13)
Sep 05   52.0(11.1)  50.0(10.0)  29.91 (1012)      SE 4

8 AM(12)
Sep 05   51(11)      50(10)      29.92 (1013)      SSE 4

7 AM(11)
Sep 05   53.1(11.7)  51.1(10.6)  29.92 (1013)      SE 5

6 AM(10)
Sep 05   53(12)      51 (11)     29.93 (1013)      SE 4

5 AM(9)
Sep 05   53(12)      53(12)      29.93 (1013)      Calm  mist

Oldest
4 AM(8)
Sep 05   57(14)      55(13)      29.94 (1013)      SSE 5 mist
                       
-- 
Dave Kruger
Astoria, OR
not spending any money on a wrist barometer/altimeter

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