IEM Daily Bulletin
Iowa Mesonet
mesonet at mesonet.agron.iastate.edu
Sat Jul 7 11:01:20 CDT 2007
Iowa Environmental Mesonet Daily Bulletin
Data valid for 06 July 2007
> News
+----------------------------------------------
| Title : NEXRAD time composites
| Date : 07 Jul 12:19 AM
| Author: Daryl Herzmann
| URL : http://mesonet.agron.iastate.edu/data/summary/max_n0r_0z0z_usrad.png
+----------------------------------------------
I am now generating daily composites of the 5 minute NEXRAD
composites :) These images are rather interesting to look at and
perhaps use, so there are GIS raster versions of these images
found in the data archive.
What they are are composites of the 5 minute reflectivity, where
each pixel is the max reflectivity observed during that period. You
end up with images depicting storm tracks and you can easily see
areas that were perhaps missed by storms. The one tricky part is
that these images are for the UTC day and not local day. So it is
7 PM to 7 PM.
You can find links to these from the Current RADAR page. There is
one for the CONUS and one for Iowa. I've also back filled an
archive back to when the higher quality composites were being
produced (10 May 2007).
Let me know what you think.
+----------------------------------------------
| Title : June AWOS data uploaded
| Date : 06 Jul 03:48 PM
| Author: Daryl Herzmann
| URL : http://mesonet.agron.iastate.edu/AWOS/
+----------------------------------------------
The 1 minute interval data from June has been uploaded to the
IEM data coffers.
> Yesterday's Daily Feature
+----------------------------------------------
http://mesonet.agron.iastate.edu/onsite/features/cat.php?day=2007-07-06
| Title : Southwest winds are the hot ones
| Date : 06 Jul 07:15 AM
| Votes : Good: 21 Bad: 5
+----------------------------------------------
The featured chart is an attempt to determine the relationship between observed July air temperatures and wind directions at 4 PM from the Des Moines Airport. The contour plot is a density field with the red area representing the 90th percentile (most common). Focusing on that area, we see a clear trend for increasing temperatures as winds switch from the SE to SW. The side histograms show the distribution of the observations with the dark green showing the distribution of winds while the temperature is above 90 degrees. Again, the SSW and SW winds are the most frequent when temperatures are the warmest. So what is the moral of the story? Having winds from the SW are an important factor to drive temperatures into the mid and upper 90s.
> NWS Watch/Warning Summary
*** Products issued on 06 Jul 2007
Summary +_________ By WFO ____________+ Watches
Type US IA | ARX DVN DMX OAX FSD | US
Tornado 2 0 | 0 0 0 0 0 | 0
Svr Tstorm 115 0 | 0 0 0 0 0 | 0
Fl Flood 0 0 | 0 0 0 0 0 | N/A
ARX = LaCrosse, WI DVN = Davenport, IA DMX = Des Moines, IA
OAX = Omaha, NE FSD = Sioux Falls, SD
> Network Metrics
-----------------------------------------------------------------
Iowa ASOS Reporting Stations: 15 Obs Received: 358
-----------------------------------------------------------------
Low Dew Point[F] : 51.08 [03:53 PM] MCW MASON CITY
Peak Gust[knots] : 0.00 [ None] ALO WATERLOO
: 0.00 [ None] DBQ DUBUQUE
: 0.00 [ None] BRL BURLINGTON
: 12 Other Duplicates Skipped
Max Rainfall [inch] : 0.01 [ ] DVN QUAD CITIES
-----------------------------------------------------------------
Iowa AWOS Reporting Stations: 42 Obs Received: 8514
-----------------------------------------------------------------
High Air Temp[F] : 96.00 [05:08 PM] CBF COUNCIL BLUFFS
Low Air Temp[F] : 59.00 [03:15 AM] IIB INDEPENDENCE
: 59.00 [05:35 AM] MXO MONTICELLO MUNI
: 59.00 [04:55 AM] CCY CHARLES CITY
: 1 Other Duplicates Skipped
High Dew Point[F] : 76.00 [07:58 PM] TNU NEWTON MUNI
: 76.00 [07:57 PM] AWG WASHINGTON
: 76.00 [08:09 PM] OOA Oskaloosa
Low Dew Point[F] : 51.80 [10:35 AM] ORC ORANGE CITY
: 51.80 [12:35 PM] SHL None
: 51.80 [05:15 PM] OLZ OELWEIN
Peak Gust[knots] : 23.00 [01:08 AM] CIN CARROLL
Max Rainfall [inch] : 0.07 [ ] DNS DENISON
-----------------------------------------------------------------
Iowa RWIS Reporting Stations: 56 Obs Received: 7820
-----------------------------------------------------------------
High Air Temp[F] : 98.50 [04:06 PM] RCBI4 Council Bluffs (I-80)
Low Air Temp[F] : 52.20 [05:33 AM] RHAI4 Hanlontown (I-35)
High Dew Point[F] : 75.90 [09:04 PM] RSCI4 Sioux City (I-29)
: 75.90 [09:53 PM] ROTI4 Ottumwa (US 63)
Low Dew Point[F] : 43.70 [04:19 PM] RMCI4 Mason City (I-35)
Peak Gust[knots] : 23.00 [01:43 AM] RAVI4 Avoca (I-80)
-----------------------------------------------------------------
KCCI SchoolNet Reporting Stations: 63 Obs Received: 84794
-----------------------------------------------------------------
High Air Temp[F] : 94.00 [05:13 PM] SGRI4 Grimes
: 94.00 [05:39 PM] SPYI4 Perry
Low Air Temp[F] : -31.00 [09:32 AM] SALI4 Albia
High Dew Point[F] : 86.00 [03:32 PM] SLMI4 Latimer
Low Dew Point[F] : -37.00 [03:21 AM] SMAI4 Marshalltown
Peak Gust[knots] : 20.86 [01:07 AM] SGLI4 Glidden
Max Rainfall [inch] : 0.08 [ ] SGLI4 Glidden
-----------------------------------------------------------------
KIMT SchoolNet Reporting Stations: 23 Obs Received: 31826
-----------------------------------------------------------------
High Air Temp[F] : 94.00 [04:31 PM] SNKI4 Northwood
: 94.00 [05:11 PM] SRRI4 Rockford
Low Air Temp[F] : 56.00 [05:35 AM] SFCM5 Preston
High Dew Point[F] : 71.00 [08:32 AM] SRRI4 Rockford
Low Dew Point[F] : 46.00 [02:02 PM] SNII4 Thompson
: 46.00 [02:26 PM] SCKI4 Clear Lake
Peak Gust[knots] : 11.00 [12:29 PM] SJAM5 Rochester (John Adams)
-----------------------------------------------------------------
KELO WeatherNet Reporting Stations: 34 Obs Received: 18040
-----------------------------------------------------------------
High Air Temp[F] : 104.00 [05:45 PM] SRAS2 Rapid City
Low Air Temp[F] : 54.00 [06:15 AM] SALS2 Alcester
High Dew Point[F] : 91.00 [05:11 PM] SMSS2 Mission
Low Dew Point[F] : -38.00 [04:22 AM] SYAS2 Yankton
Peak Gust[knots] : 28.68 [12:36 PM] SWAS2 Wall
-----------------------------------------------------------------
Iowa NWS COOP Reporting Stations: 78 Obs Received: 507
-----------------------------------------------------------------
High Air Temp[F] : 95.00 [ ] LSXI4 LITTLE SIOUX 2 NW
Low Air Temp[F] : 55.00 [ ] CRCI4 Cresco
-----------------------------------------------------------------
Misc Stations Reporting Stations: 5 Obs Received: 1981
-----------------------------------------------------------------
High Air Temp[F] : 87.20 [10:49 AM] OT0006 NE Ames
Low Air Temp[F] : 70.80 [04:41 AM] OT0006 NE Ames
High Dew Point[F] : 70.00 [12:01 AM] OT0007 ISU Agronomy II
Low Dew Point[F] : 40.00 [12:48 PM] RAWDES Desoto
> All data subject to revision and is intended for
> educational use only.
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