IEM Daily Bulletin
Iowa Mesonet
mesonet at mesonet.agron.iastate.edu
Fri Jan 12 11:01:42 CST 2007
Iowa Environmental Mesonet Daily Bulletin
Data valid for 11 January 2007
> News
No news is good news
> Yesterday's Daily Feature
+----------------------------------------------
http://mesonet.agron.iastate.edu/onsite/features/cat.php?day=2007-01-11
| Title : Radiative fun at 5 AM
| Date : 11 Jan 12:13 AM
| Votes : Good: 29 Bad: 9
+----------------------------------------------
The featured graph has a lot going on. The three data lines are from the
<a href="http://mesonet.agron.iastate.edu/nstl_flux/">NSTL Flux</a> site
near Ames for Tuesday morning. The green line is long wave radiation and
simply shows the period up until 5 AM which was cloudy (clear sky values
are around -100 W m**-2). The orange line is short wave (solar) radiation
and its obviously near 0 until sunrise around 8 AM increasing to around
400 W m**-2 at midday. The air temperature trace in red shows three
distinct regimes during this period.
<ul>
<li>Between midnight-5AM: Cloudy skies trap heat near the surface
(decreased long wave) and temperatures slowly cool.</li>
<li>Between 5AM-8AM: Skies clear, long wave radiation increases, and air
temperatures cool rapidly at 4 times the rate with clouds.</li>
<li>8AM - after: The sun rises and short wave radiation exceeds long
wave radiation (net radiation positive) and the result is heating.</li>
</ul>
<p>Really great stuff! You can view plots like these <a
href="http://mesonet.agron.iastate.edu/nstl_flux/plots.phtml">here</a>.
> NWS Watch/Warning Summary
*** Products issued on 11 Jan 2007
Summary +_________ By WFO ____________+ Watches
Type US IA | ARX DVN DMX OAX FSD | US
Tornado 0 0 | 0 0 0 0 0 | 0
Svr Tstorm 0 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: 464
-----------------------------------------------------------------
High Air Temp[F] : 53.60 [11:39 PM] BRL BURLINGTON
Low Air Temp[F] : 6.08 [11:52 PM] EST ESTHERVILLE
High Dew Point[F] : 46.94 [11:53 PM] BRL None
Low Dew Point[F] : -0.94 [11:52 PM] EST ESTHERVILLE
: -0.94 [11:52 PM] SUX SIOUX CITY
Peak Gust[knots] : 32.00 [01:52 AM] DVN QUAD CITIES
: 32.00 [06:53 PM] SPW SPENCER
Max Rainfall [inch] : 0.08 [ ] DBQ DUBUQUE
-----------------------------------------------------------------
Iowa AWOS Reporting Stations: 40 Obs Received: 5966
-----------------------------------------------------------------
High Air Temp[F] : 58.00 [12:28 PM] SDA SHENANDOAH MUNI
Low Air Temp[F] : 8.00 [11:47 PM] ORC ORANGE CITY
: 8.00 [11:57 PM] LRJ LE MARS
High Dew Point[F] : 51.00 [11:47 PM] EOK KEOKUK MUNI
Low Dew Point[F] : 1.00 [11:27 PM] SHL SHELDON
: 1.00 [11:47 PM] LRJ LE MARS
Peak Gust[knots] : 35.00 [12:15 AM] CWI CLINTON
Max Rainfall [inch] : 0.02 [ ] GGI Grinnell
-----------------------------------------------------------------
Iowa RWIS Reporting Stations: 52 Obs Received: 7129
-----------------------------------------------------------------
High Air Temp[F] : 52.90 [11:53 AM] RSDI4 Sidney (I-29/IA 2)
Low Air Temp[F] : 6.80 [11:53 PM] RSPI4 Spencer (US 18)
High Dew Point[F] : 47.20 [11:56 PM] RBUI4 Burlington (US 34)
Low Dew Point[F] : 1.00 [11:51 PM] RTNI4 Alton (IA10)
Peak Gust[knots] : 33.00 [01:04 AM] RDCI4 Decorah (IA 9)
Max Rainfall [inch] : 0.08 [ ] RIAI4 Iowa City (US 218)
-----------------------------------------------------------------
KCCI SchoolNet Reporting Stations: 70 Obs Received: 91700
-----------------------------------------------------------------
High Air Temp[F] : 54.00 [12:16 PM] SBMI4 Bloomfield
: 54.00 [12:55 PM] SCNI4 Corning
Low Air Temp[F] : 8.00 [11:59 PM] SAGI4 Algona
High Dew Point[F] : 51.00 [01:27 PM] SCEI4 Centerville
Low Dew Point[F] : -32.00 [01:50 AM] SLMI4 Latimer
Peak Gust[knots] : 32.15 [12:25 AM] SPAI4 Panora
Max Rainfall [inch] : 0.09 [ ] SBRI4 Brooklyn
-----------------------------------------------------------------
KIMT SchoolNet Reporting Stations: 10 Obs Received: 13280
-----------------------------------------------------------------
High Air Temp[F] : 43.00 [02:51 PM] SCQI4 Cresco
: 43.00 [02:30 PM] SCCI4 Charles City
Low Air Temp[F] : 9.00 [11:57 PM] SFCI4 Forest City
High Dew Point[F] : 33.00 [03:35 PM] SCQI4 Cresco
: 33.00 [09:37 AM] SCKI4 Clear Lake
Low Dew Point[F] : 9.00 [11:40 PM] SFCI4 Forest City
Peak Gust[knots] : 20.00 [09:40 PM] SKWI4 Kanawha
-----------------------------------------------------------------
KELO WeatherNet Reporting Stations: 40 Obs Received: 24475
-----------------------------------------------------------------
High Air Temp[F] : 37.00 [12:04 AM] CHAS2 Chamberlain
: 37.00 [12:50 AM] MTYS2 Marty, SD
: 37.00 [12:00 AM] SMSS2 Mission
Low Air Temp[F] : -11.00 [10:15 PM] LDSS2 Lead _ Deadwood School
High Dew Point[F] : 35.00 [12:02 AM] CLYI4 Rock Rapids
Low Dew Point[F] : -39.00 [06:13 PM] SHII4 Hull
: -39.00 [05:00 AM] SWTS2 Watertown
: -39.00 [11:20 PM] SMIS2 Milbank
Peak Gust[knots] : 102.54 [08:45 AM] ICSI4 Inwood
Max Rainfall [inch] : 0.01 [ ] ICSI4 Inwood
: 0.01 [ ] RRCM5 Lamberton
-----------------------------------------------------------------
Iowa NWS COOP Reporting Stations: 96 Obs Received: 97
-----------------------------------------------------------------
High Air Temp[F] : 56.00 [ ] SDHI4 SHENANDOAH
Low Air Temp[F] : 5.00 [ ] VICI4 Vicks Corner _ Spirit Lake
Max Rainfall [inch] : 0.12 [ ] FULI4 FULTON
Max Snowfall [inch] : 0.10 [ ] CRTI4 CRESTON 2 SW
-----------------------------------------------------------------
Misc Stations Reporting Stations: 4 Obs Received: 1328
-----------------------------------------------------------------
High Air Temp[F] : 21.00 [12:45 AM] RAWNSM Neal Smith
Low Air Temp[F] : 5.58 [10:07 AM] OT0007 ISU Agronomy II
High Dew Point[F] : 19.00 [12:45 AM] RAWNSM Neal Smith
Low Dew Point[F] : -3.00 [10:13 AM] OT0006 NE Ames
> All data subject to revision and is intended for
> educational use only.
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