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RUC BUFR data has precip amount on the analysis

Posted By: Phil Harvey
Date: 17-December-02 0010Z

We have been seeing precipitation amounts showing up in the analysis hour in the BUFR data for our station lately. It does not occur on every run but it did show up several times while we had good weather under a ridge. Most recently, we found 0.04 inches (liquid precip Yes/No was Yes) at 00 hours on the 15Z data for 723810 (KEDW) on 12/16/2002. We are using the exact same decoder that I use for the ETA BUFR files and am not seeing this in the ETA data.

Here is the output...

2002121615Z Model Output For Station KEDW (723810) From The RUC-20
NOTE: Station is 2303 Feet, Grid Point is Lat = 34.85 Lon = -117.91 at 2329 Feet

VALID 10M/10M 2M 2M 2M SEA Z I PCT PCT PCT STORM
DTG DIR/SPD TMP DPT RH LEVEL ALSTG PALT DALT R R P S PCPN SNOW LOW MID HI DIR/SPD

16/15Z 234/008 49 42 74 1012.4 30.04 2194 2197 Y N N N 0.04 0.0 999 999 999 278/046
16/16Z 211/012 49 40 70 1012.5 30.00 2229 2194 N N N N 0.00 0.0 999 999 999 271/045
16/17Z 207/012 49 39 68 1010.9 29.97 2256 2249 N N N N 0.00 0.0 999 999 999 266/049
16/18Z 201/013 51 40 66 1010.6 30.02 2212 2318 N N N N 0.00 0.0 999 999 999 264/053
16/19Z 196/017 53 42 66 1009.7 29.99 2241 2494 N N N N 0.00 0.0 999 999 999 263/053
16/20Z 196/018 54 44 69 1009.1 29.96 2262 2588 N N N N 0.00 0.0 999 999 999 264/054
16/21Z 197/021 54 46 71 1008.2 29.92 2302 2668 N N N N 0.00 0.0 999 999 999 262/055
16/22Z 197/021 54 46 74 1008.1 29.92 2305 2640 Y N N N 0.00 0.0 999 999 999 261/055
16/23Z 200/022 53 47 78 1008.1 29.87 2352 2641 Y N N N 0.01 0.0 999 999 999 262/056
17/00Z 208/021 53 48 82 1008.1 29.84 2379 2681 Y N N N 0.01 0.0 999 999 999 266/057
17/01Z 224/019 53 49 86 1008.7 29.85 2367 2662 Y N N N 0.03 0.0 999 999 999 271/058
17/02Z 229/018 52 49 86 1009.0 29.84 2379 2662 Y N N N 0.04 0.0 999 999 999 274/057
17/03Z 231/015 52 48 85 1009.7 29.86 2361 2588 Y N N N 0.02 0.0 999 999 999 277/057
 0.16 0.0

I know it should not do this on a fair weather day but should it even output anything on the 00 hour fcst on a precip day?

Phil

Messages In This Thread

RUC BUFR data has precip amount on the analysis -- Phil Harvey -- 17-December-02 0010Z
Re: RUC BUFR data has precip amount on the analysis -- Michael Dross -- 16-December-02 2048Z
Re: RUC BUFR data has precip amount on the analysis -- Phil Harvey -- 16-December-02 2048Z
Re: RUC BUFR data has precip amount on the analysis -- Stan Benjamin -- 17-December-02 0010Z

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