Iowa Environmental Mesonet Daily Bulletin for 06 November 2026

> News

    No news is good news

> IEM Code Pushes <repo,branch> on Github

  Nov 5  8:42 AM[1] <iem,main> 🎨 Cleanup autoplot datetime handler
    - Adds test for regression fixed with #1816.
    - Removes unreachable code with datetime HTML widget generation.
    - Improves test labelling
  Nov 5 12:04 PM[2] <iem,main> 🎨 Add more debug fields to autoplot timing
  Nov 5 12:04 PM[3] <iem,main> 🎨 Address some lint
  Nov 5 11:11 AM[4] <pywwa,main> 🐛 Fix and test issue with DSM table reload
  Nov 5 11:55 AM[5] <iem-database,main> ✨ Add fields to autoplot_timing
  Nov 5 12:12 PM[6] <iem-database,main> ✏️ Fix typo
  Nov 5  1:40 PM[7] <iem-web-services,main> 🐛 Correct X-Forwarded-For processing

[1] https://github.com/akrherz/iem/commit/8e31a44d59e286d15e52
[2] https://github.com/akrherz/iem/commit/99938737b592cf7a6163
[3] https://github.com/akrherz/iem/commit/dae1f4add8af52cae380
[4] https://github.com/akrherz/pyWWA/commit/64f1fa6f9300cdf74de6
[5] https://github.com/akrherz/iem-database/commit/42a925eb16261f35fcc7
[6] https://github.com/akrherz/iem-database/commit/b3b89942dec760bde31b
[7] https://github.com/akrherz/iem-web-services/commit/7fdca1ef679deccd8c17

> Daily Feature

 +----------------------------------------------
https://mesonet.agron.iastate.edu/onsite/features/cat.php?day=2026-11-05
 | Title : Melbourne, FL Record Rainfall
 | Date  : 05 Nov 05:30 AM
 | Votes : Good: 14   Bad: 1   Abstain: 0
 +---------------------------------------------------------------

The IEM curates an archive of <a href="https://mesonet.agron.iastate.edu/request/asos/1min.phtml">one minute interval ASOS</a> data <a href="https://www.ncei.noaa.gov/products/land-based-station/automated-surface-weather-observing-systems">collected by NCEI</a>.  The data collection method used by NCEI for this dataset leads to a day or two data availability delay.  Anyway, when interesting weather phenomena happen around the country, it is interesting to see what the one minute interval observations show for the event.  On Monday, Melbourne Florida set a all-time 24 hour precipitation <a href="https://mesonet.agron.iastate.edu/wx/afos/p.php?pil=RERMLB&e=202611030654">record of 11.51"</a> for the site.  The featured chart shows the one minute interval data from this event with the black line showing the accumulation and the other lines showing computed rainfall rates over various windows of time.  The one minute data is not complete, so the plotted total comes up just short of the official total.  That aside, it is remarkable to see the maximum one minute accumulation was just 0.03"! If you follow the <a href="https://mesonet.agron.iastate.edu/onsite/features/tags/heavyrain.html">"heavyrain" feature tag</a>, you'll find many of examples of this plot for significant rainfall events for other locations in the country.  Rainfall rates for those events are always much higher. 


The featured media can be generated here: https://mesonet.agron.iastate.edu/plotting/auto/?_wait=no&q=211&ptype=precip&network=FL_ASOS&zstation=MLB&sts=2026%2F11%2F02+0500&ets=2026%2F11%2F03+0500> NWS Watch/Warning Summary for 12 AM 5 Nov 2026 - 12 AM 6 Nov 2026 CST
             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
Flash Flood   3    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

> IEM Cow Report
No SVR+TOR Warnings Issued.

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