NOAA Weather Radio is Off The Air

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From the NWS:

...NOAA WEATHER RADIO WXL-94 AT WATERLOO IS OFF THE AIR...

The NOAA Weather Radio transmitter WXL-94 at Waterloo Iowa is off the
air due to a communications or hardware failure. Technicians have
been notified but there is no estimated restore time.

Additionally the Waterloo transmitter WXL-94 will be off the air
due to scheduled maintenance on this Tuesday, August 30th for
approximately 8 hours. This is due to a new transmitter being
installed at the site. More information will be sent once the
transmitter is back on-air from the current failure.

The Waterloo NOAA Weather Radio broadcasts on Channel 7...or a
frequency of 162.550 MHz...and services the following counties in
Iowa...Black Hawk...Bremer...Buchanan...Butler...Chickasaw...
Fayette...Floyd...and Grundy.

Neighboring transmitters that service some of these counties include
KXI-68 at Saint Ansgar broadcasting on Channel 3 or 162.450 MHz...KXI-
60 at Decorah broadcasting on Channel 6 or 162.525 MHz...WWG-86 at
Prairie du Chien broadcasting on Channel 5 or 162.500 MHz...KXI-98 at
Marshalltown broadcasting on Channel 5 or 162.500 MHz...and WNG-
666 at Iowa Falls broadcasting on Channel 6 or 162.525 MHz.

We apologize for this interruption and will have service restored as
soon as possible.
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Posted under NOAA

This post was written by Schnack on August 26, 2016

UPDATE: NOAA Weather Radio at Waterloo is Down

WEDNESDAY AFTERNOON UPDATE: The weather radio at Waterloo is still down for maintenance:

...NOAA WEATHER RADIO WXL-94 AT WATERLOO IS OFF THE AIR...

The NOAA Weather Radio transmitter WXL-94 at Waterloo Iowa is off the
air due to a communications or hardware failure. Technicians are
working on the issue but there is no estimated restore time.

The Waterloo NOAA Weather Radio broadcasts on Channel 7...or a
frequency of 162.550 MHz...and services the following counties in
Iowa...Black Hawk...Bremer...Buchanan...Butler...Chickasaw...
Fayette...Floyd...and Grundy.

WeatherRadio
From the NWS Des Moines:

NOAA WEATHER RADIO WXL-94 AT WATERLOO IS OFF THE AIR UNTIL WED
MORNING

The NOAA Weather Radio transmitter WXL-94 at Waterloo Iowa is off the
air due to scheduled maintenance. Service is expected to be
restored tomorrow morning.  

The Waterloo NOAA Weather Radio broadcasts on Channel 7...or a
frequency of 162.550 MHz...and services the following counties in
Iowa...Black Hawk...Bremer...Buchanan...Butler...Chickasaw...
Fayette...Floyd...and Grundy.

Neighboring transmitters that service some of these counties include
KXI-68 at Saint Ansgar broadcasting on Channel 3 or 162.450 MHz...KXI-
60 at Decorah broadcasting on Channel 6 or 162.525 MHz...WWG-86 at
Prairie du Chien broadcasting on Channel 5 or 162.500 MHz...KXI-98 at
Marshalltown broadcasting on Channel 5 or 162.500 MHz...and WNG-
666 at Iowa Falls broadcasting on Channel 6 or 162.525 MHz.
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Posted under NOAA

This post was written by Schnack on August 2, 2016

2 Tornadoes Saturday

NWS Damage Survey Information for July 23, 2016 Tornadoes

Tornado #1 Delhi, IA

Rating:                 EF-1
Estimated peak wind:    90 mph
Path length /Statute/:  0.25 miles
Path width /Maximum/:   10 yards
Fatalities:             0
Injuries:               0

Start date:             July 23, 2016 
Start time:             418 PM CDT
Start location:         3.5 SW Delhi / Delaware County / IA
Start Lat/Lon:          42.4108 / -91.3930

End date:               July 23, 2016
End time:               419 PM CDT
End location:           3.5 SW Delhi / Delaware County / IA
End_lat/lon:            42.4084 / -91.3908

A tornado moved across the southwest portion of Lake Delhi
resulting in downed trees along the shoreline.

Tornado #2 Worthington, IA

Rating:                 EF-0
Estimated peak wind:    70 mph
Path length /Statute/:  0.8 mile
Path width /Maximum/:   25 yards
Fatalities:             0
Injuries:               0

Start date:             July 23, 2016 
Start time:             443 PM
CDT Start location:     1.9 NNW Worthington / Dubuque County / IA
IA Start Lat/Lon:       42.4235 / -91.1265

End date:               July 23, 2016
End time:               445 PM
End location:           2 N Worthington / Dubuque County / IA
End_lat/lon:            42.4234 / -91.1112

A tornado damaged crops and blew off the roofing material
of several farm outbuildings.

EF Scale: The Enhanced Fujita Scale Classifies
Tornadoes into the following categories.

EF0...Weak......65 to 85 mph
EF1...Weak......86 to 110 mph
EF2...Strong....111 to 135 mph
EF3...Strong....136 to 165 mph
EF4...Violent...166 To 200 mph
EF5...Violent...>200 mph
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Posted under NOAA, Severe Weather

This post was written by Schnack on July 25, 2016

EF-0 Tornado Tuesday

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NWS DAMAGE SURVEY FOR TUESDAY JUNE 14, 2016 TORNADO EVENT...

OVERVIEW...A brief touchdown of a weak tornado occurred over northern
Benton County Iowa. This was associated with a very elongated funnel
cloud that was seen by many people. Video evidence shows that this funnel 
produced a brief tornado in an open area northwest of Urbana Iowa.

URBANA TORNADO...

Rating:                 EF-0
Estimated peak wind:    65 mph
Path length /Statute/:  0.25 miles
Path width /Maximum/:   10 yards
Fatalities:             0
Injuries:               0

Start date:             06/14/2016 
Start time:             516 PM CDT
Start location:         3.8 NW of Urbana / Benton 
Start Lat/Lon:          42.241797 / -91.946942

End date:               06/14/2016
End time:               516 PM CDT
End location:           3.9 NW of Urbana / Benton 
End_lat/lon:            42.245419 / -91.945710

SURVEY_SUMMARY: Information for the location and path of this tornado
are from local emergency manager coordination in analyzing a video of
of the event. No damage occurred with this tornado.

EF Scale: The Enhanced Fujita Scale Classifies
Tornadoes into the following categories.

EF0...Weak......65 to 85 mph
EF1...Weak......86 to 110 mph
EF2...Strong....111 to 135 mph
EF3...Strong....136 to 165 mph
EF4...Violent...166 To 200 mph
EF5...Violent...>200 mph
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Posted under NOAA, Severe Weather

This post was written by Schnack on June 16, 2016

More Rain for Waterlogged Houston and Some Rain for Us

A very productive and slow-moving system continues to dump a LOT of rain in a few areas of the nation.

An area of moderate to heavy rainfall continues to churn around Omaha and Council Bluffs and is expected to dump over an inch of rain in many areas of Western Iowa and Eastern Nebraska. We will have a few showers and thunderstorms tracking through the viewing area later, but they will be more spotty and may only produce a quarter- to half-inch of rain by the time the system tracks out of the area Thursday evening.

The cold front trailing from the low over us has produced a line of storms that is tracking toward Houston, TX and will produce more rainfall in the soaked city. ¬†While the storms are dying out, Houston is waterlogged and the rain will have nowhere to go. You can see the line of storms on the visible satellite loop from NOAA’s GOES-14 satellite this morning.

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Posted under Clouds, NOAA

This post was written by Eileen Loan on April 20, 2016

How Many Warnings

The two maps below break up the US into National Weather Service forecast zones (areas each office is responsible for). It shows how many severe thunderstorm warnings and tornado warnings have been issued so far this year.

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Posted under NOAA, Severe Weather

This post was written by Schnack on April 6, 2016

A Look Back at Another March Snow Storm

March 18-19, 2005

As we wait for the potential of a snow storm, here is a look back at different storm with heavy snow in almost the same area currently in the forecast. The map below shows some locations across northeast Iowa near a foot of snow. Notice how quickly the snow amounts drop off as you move south.

 

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Here is a list of some of the snow reports in Iowa.

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The map below shows the position of the storm on the morning of the 18th.

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Click here for more information about this storm.

 

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Posted under NOAA, Weather History, Winter Weather

This post was written by Schnack on March 22, 2016

Spotter Training Classes This Year

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Click the image to enlarge. The classes are free and open to everyone.

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Posted under NOAA, Severe Weather

This post was written by Schnack on February 29, 2016

Heavy Snow in 1985

FROM NWS:

A winter storm struck Iowa from late on November 29th through December 1st producing heavy snow across much of the state. A wide swath from southwest to northeast received 8 or more inches with many stations from around Guthrie Center east northeast to Waukon and Dubuque recording a foot or more of snow. In northeastern Iowa Decorah, Dorchester, and Waukon all set their single-day snowfall records with Dorchester reporting a remarkable 18.0 inches of snow in just 24 hours ending on the morning of the 2nd. Other reported three-day snowfall amounts included 13.5 inches at Charles City and Waterloo, 14.0 inches at Independence and Waukon, 14.8 inches at Decorah, 16.0 inches at Tripoli, 16.5 inches at Oelwein, 17.0 inches at Fayette, 18.6 inches at Dubuque, and 19.0 inches at Elkader and Iowa Falls. Winds gusted to 40 to 50 mph by December 1st, combining with bitterly cold air to produce wind chills of -40 to -60 and resulting in blowing and drifting of snow that brought travel to a standstill across much of Iowa.

December 1 1985 Heavy Snowfall

The map below is from December 1 showing the position of the storm.

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Posted under NOAA, Weather History, Winter Weather

This post was written by Schnack on December 1, 2015

December Outlook

The updated outlook for December was released today and it shows temperatures are likely to be above normal. As for the precipitation, there is nothing that helps lean either way (above or below)…therefore the “EC”=Equal Chances.

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If you want to read the technical discussion from the Climate Prediction Center click here.

The map below shows the normal precipitation amounts for December.
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The map below shows the normal high temperatures for December.
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Posted under Long Range Outlook, NOAA

This post was written by Schnack on November 30, 2015