A strong atmospheric river will continue to impact northern California with heavy rain and life-threatening flooding through Friday. Unsettled weather is expected across much of the Northeast and Great Lakes over the next few days, including the likelihood of heavy snow in the central Appalachians and higher elevations of northeastern Pennsylvania and southern New York. Read More >
(updated daily around 2am)
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Example monthly F6... PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6) STATION: TULSA OKLAHOMA MONTH: MAY YEAR: 2004 LATITUDE: 36 12 N LONGITUDE: 95 54 W TEMPERATURE IN F: :PCPN: SNOW: WIND :SUNSHINE: SKY :PK WND ================================================================================ 1 2 3 4 5 6A 6B 7 8 9 10 11 12 13 14 15 16 17 18 AVG MX 2MIN DY MAX MIN AVG DEP HDD CDD WTR SNW DPTH SPD SPD DIR MIN PSBL S-S WX SPD DR ================================================================================ 1 62 48 55 -10 10 0 0.09 0.0 0 11.6 18 20 M M 8 1 29 20 2 72 42 57 -8 8 0 0.00 0.0 0 8.1 24 350 M M 2 30 350 3 67 39 53 -13 12 0 0.00 0.0 0 6.9 14 180 M M 2 M M Here is a brief listing of what each of the columns holds: Column 1 - Day of the Month Column 2 - Maximum Temperature for the day (Midnight to Midnight CST) Column 3 - Minimum Temperature for the day (Midnight to Midnight CST) Column 4 - Average Temperature (MAX+MIN/2) Column 5 - Daily Departure from Normal Temperature Column 6A - Heating Degree Days (COLUMN 4 - 65 degrees) (zero if col 4 > 64) Column 6B - Cooling Degree Days (65 degrees - COLUMN 4) (zero if col 4 < 66) Column 7 - Precipitation (rain or melted snow/sleet/ice) in hundreths of inches Column 8 - Daily Snowfall (in tenths of inches). Column 9 - Depth of the Snow on the ground (everything). Column 10- Average Wind Speed for the Day Column 11 - Maximum 2-min-average wind speed during the Day Column 12 - Average Wind Direction for the Day (360 degree compass) Column 13 - Minutes of Sunshine (n/a) Column 14 - Percent of possible sunshine (n/a) Column 15 - Sky cover Average Sunrise to Sunset (in tenths of sky covered by clouds) Column 16 - Any Weather (Numeric Codes found on the form) Column 17 - Peak Wind Speed Column 18 - Direction that peak wind came from (360 degree compass) M - Missing data