Severe Thunderstorm Warning 21, NWS Des Moines, IA

Issued

Mar 6, 2017, 6:09 PM CST (00:09 UTC)

Expired

Mar 6, 2017, 7:00 PM CST

In force

51 min

Issued by

NWS Des Moines, IA

Area

Storm-based polygon

Tornado

Possible

Hail

1.0 in

Wind

60.0 mph

Counties Franklin County, IA, Hamilton County, IA, Hardin County, IA, Wright County, IA

The Des Moines radar (KDMX), 105 km from the middle of the area, began a volume at 00:13 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

955 
WUUS53 KDMX 070009
SVRDMX
IAC069-079-083-197-070100-
/O.NEW.KDMX.SV.W.0021.170307T0009Z-170307T0100Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Des Moines IA
609 PM CST MON MAR 6 2017

The National Weather Service in Des Moines  has issued a

* Severe Thunderstorm Warning for...
  Northern Hardin County in central Iowa...
  Franklin County in north central Iowa...
  Eastern Wright County in north central Iowa...
  Northeastern Hamilton County in central Iowa...

* Until 700 PM CST.

* At 609 PM CST, severe thunderstorms were located along a line
  extending from near Belmond to 7 miles east of Big Wall Lake to 8
  miles north of Jewell Junction, moving northeast at 45 mph.

  HAZARD...60 mph wind gusts and quarter size hail. 

  SOURCE...Radar indicated. 

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees. 

* Locations impacted include...
  Webster City, Iowa Falls, Hampton, Clarion, Belmond, Ackley,
  Sheffield, Big Wall Lake, Elm Lake, Alden, Dows, Latimer, Williams,
  Coulter, Meservey, Blairsburg, Alexander, Geneva, Rowan and
  Bradford.

This includes Interstate 35 between mile markers 142 and 177.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

Intense thunderstorm lines can produce brief tornadoes and widespread
significant wind damage. Although a tornado is not immediately
likely, it is best to move to an interior room on the lowest floor of
a building. These storms may cause serious injury and significant
property damage.

&&

A tornado watch remains in effect until 1000 PM CST for central and
north central Iowa.

LAT...LON 4247 9303 4247 9300 4245 9300 4241 9382
      4262 9373 4290 9370 4291 9348 4291 9303
TIME...MOT...LOC 0009Z 245DEG 41KT 4289 9358 4263 9350 4243 9363 

TORNADO...POSSIBLE
HAIL...1.00IN
WIND...60MPH
 
$$

MF

722 
WWUS53 KDMX 070033
SVSDMX

Severe Weather Statement
National Weather Service Des Moines IA
633 PM CST MON MAR 6 2017

IAC069-079-083-197-070100-
/O.CON.KDMX.SV.W.0021.000000T0000Z-170307T0100Z/
Hardin IA-Franklin IA-Wright IA-Hamilton IA-
633 PM CST MON MAR 6 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 PM CST
FOR NORTHERN HARDIN...FRANKLIN...SOUTHEASTERN WRIGHT AND NORTHEASTERN
HAMILTON COUNTIES...

At 632 PM CST, severe thunderstorms were located along a line
extending from near Rockwell to Hampton to near Iowa Falls, moving
northeast at 45 mph.

HAZARD...60 mph wind gusts and quarter size hail. 

SOURCE...Radar indicated. 

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees. 

Locations impacted include...
Iowa Falls, Hampton, Ackley, Sheffield, Alden, Dows, Latimer,
Williams, Coulter, Blairsburg, Geneva, Bradford, Hansell, Chapin,
Popejoy, Beeds Lake State Park, Iowa Falls Municipal Airport, Hampton
Municipal Airport and Ackley Municipal Airport.

This includes Interstate 35 between mile markers 141 and 178.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.

&&

A tornado watch remains in effect until 1000 PM CST for central and
north central Iowa.

LAT...LON 4247 9303 4247 9300 4245 9300 4241 9373
      4263 9352 4291 9341 4291 9303
TIME...MOT...LOC 0032Z 245DEG 41KT 4300 9327 4274 9319 4254 9332 

TORNADO...POSSIBLE
HAIL...1.00IN
WIND...60MPH
 
$$

Curtis

732 
WWUS53 KDMX 070052
SVSDMX

Severe Weather Statement
National Weather Service Des Moines IA
652 PM CST MON MAR 6 2017

IAC069-079-083-197-070102-
/O.EXP.KDMX.SV.W.0021.000000T0000Z-170307T0100Z/
Hardin IA-Franklin IA-Wright IA-Hamilton IA-
652 PM CST MON MAR 6 2017

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN HARDIN...FRANKLIN...
SOUTHEASTERN WRIGHT AND NORTHEASTERN HAMILTON COUNTIES WILL EXPIRE AT
700 PM CST...
            
The storms which prompted the warning have weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore the warning will be allowed to expire.  However gusty winds
are still possible with these thunderstorms.

A tornado watch remains in effect until 1000 PM CST for central and
north central Iowa.

LAT...LON 4247 9303 4247 9300 4245 9300 4241 9373
      4263 9352 4291 9341 4291 9303
TIME...MOT...LOC 0052Z 245DEG 41KT 4309 9301 4283 9293 4263 9306 

$$

Curtis

Severe Thunderstorm Warnings in Iowa, 2017Every severe thunderstorm warning in 2017

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.