Alert archive / Iowa / Tornado Warnings in 2018
Tornado Warning 43, NWS Des Moines, IA
NWS Des Moines, IA issued this tornado warning at Jul 19, 2018, 3:54 PM CDT for 4 counties in Iowa. It was in force for 51 min. 8 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Jul 19, 2018, 3:54 PM CDT (20:54 UTC)
- Expired
- Jul 19, 2018, 4:45 PM CDT
- In force
- 51 min
- Issued by
- NWS Des Moines, IA
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.75 in
Counties Grundy County, IA, Hardin County, IA, Marshall County, IA, Story County, IA
The radar
The Des Moines radar (KDMX), 65 km from the middle of the area, began a volume at 20:57 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 19, 4:15 PM CDT | FUNNEL CLOUD | 1 Ese Albion, IA | |
| Jul 19, 4:17 PM CDT | FUNNEL CLOUD | 1 Ene Clemons, IA | |
| Jul 19, 4:17 PM CDT | FUNNEL CLOUD | Clemons, IA | |
| Jul 19, 4:22 PM CDT | TORNADO | 3 E Clemons, IA | |
| Jul 19, 4:27 PM CDT | TORNADO | 4 E Clemons, IA | BETWEEN CLEMONS AND ALBION. NEAR THE INTERSECTION OF 190TH AND MARSH. |
| Jul 19, 4:30 PM CDT | TORNADO | Albion, IA | TRAINED SPOTTER REPORTED TORNADO ON THE GROUND, ROUGHLY 1 MILE WEST OF THEIR LOCATION. |
| Jul 19, 4:50 PM CDT | TORNADO | Marshalltown, IA | MARSHALLTOWN COURTHOUSE LOST CLOCK TOWER. TREES DOWN ALL OVER TOWN. |
| Jul 19, 4:55 PM CDT | TORNADO | 2 Nw Marshalltown, IA | REPORTS OF CATASTROPHIC DAMAGE, INCLUDING VEHICLES MISSING, VEHICLES OVERTURNED, TOPS OF BUILDINGS GONE, TREES DOWN, POWER LINES, GAS LINES, ETC... |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jul 19, 3:11 PM CDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Davenport, (KDVN), launched 12:00Z, 8.9 hours before the alert went out and 225 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1807 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- -12 m²/s²
- 0-3 km storm-relative helicity
- -21 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
615
WFUS53 KDMX 192054
TORDMX
IAC075-083-127-169-192145-
/O.NEW.KDMX.TO.W.0043.180719T2054Z-180719T2145Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Des Moines IA
354 PM CDT THU JUL 19 2018
The National Weather Service in Des Moines has issued a
* Tornado Warning for...
Northeastern Story County in central Iowa...
Southeastern Hardin County in central Iowa...
Northern Marshall County in central Iowa...
Southwestern Grundy County in central Iowa...
* Until 445 PM CDT.
* At 354 PM CDT, a severe thunderstorm capable of producing a tornado
was located 10 miles northwest of State Center, or 13 miles
northeast of Nevada, moving east at 25 mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed.
Damage to roofs, windows, and vehicles will occur. Tree
damage is likely.
* This dangerous storm will be near...
Marshalltown and Conrad around 440 PM CDT.
Other locations impacted by this tornadic thunderstorm include
Zearing, Beaman, Whitten, Green Mountain, St. Anthony, Albion,
Marshalltown Municipal Airport, Clemons, Union and Liscomb.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 4206 9336 4224 9336 4229 9279 4195 9278
TIME...MOT...LOC 2054Z 269DEG 22KT 4215 9326
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$
Johnson4 follow-up statements
665
WWUS53 KDMX 192105
SVSDMX
Severe Weather Statement
National Weather Service Des Moines IA
405 PM CDT THU JUL 19 2018
IAC169-192114-
/O.CAN.KDMX.TO.W.0043.000000T0000Z-180719T2145Z/
Story IA-
405 PM CDT THU JUL 19 2018
...THE TORNADO WARNING FOR NORTHEASTERN STORY COUNTY IS CANCELLED...
The tornadic thunderstorm which prompted the warning has moved out
of the warned area. Therefore, the warning has been cancelled.
A Tornado Watch remains in effect until 1000 PM CDT for central Iowa.
LAT...LON 4204 9323 4225 9323 4229 9279 4195 9278
TIME...MOT...LOC 2104Z 269DEG 22KT 4215 9318
$$
IAC075-083-127-192145-
/O.CON.KDMX.TO.W.0043.000000T0000Z-180719T2145Z/
Hardin IA-Marshall IA-Grundy IA-
405 PM CDT THU JUL 19 2018
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 445 PM CDT FOR
SOUTHEASTERN HARDIN...NORTHERN MARSHALL AND SOUTHWESTERN GRUNDY
COUNTIES...
At 404 PM CDT, a severe thunderstorm capable of producing a tornado
was located 9 miles north of State Center, or 15 miles south of
Eldora, moving east at 25 mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
This dangerous storm will be near...
Marshalltown and Conrad around 440 PM CDT.
Other locations impacted by this tornadic thunderstorm include
Beaman, Whitten, Green Mountain, St. Anthony, Albion, Marshalltown
Municipal Airport, Clemons, Union, Liscomb and Le Grand.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 4204 9323 4225 9323 4229 9279 4195 9278
TIME...MOT...LOC 2104Z 269DEG 22KT 4215 9318
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$
Johnson392
WWUS53 KDMX 192117
SVSDMX
Severe Weather Statement
National Weather Service Des Moines IA
417 PM CDT THU JUL 19 2018
IAC075-083-192127-
/O.CAN.KDMX.TO.W.0043.000000T0000Z-180719T2145Z/
Hardin IA-Grundy IA-
417 PM CDT THU JUL 19 2018
...THE TORNADO WARNING FOR SOUTHEASTERN HARDIN AND SOUTHWESTERN
GRUNDY COUNTIES IS CANCELLED...
The tornadic thunderstorm which prompted the warning has moved out
of the warned area. Therefore, the warning has been cancelled.
A Tornado Watch remains in effect until 1000 PM CDT for central Iowa.
LAT...LON 4204 9323 4221 9323 4221 9279 4195 9278
TIME...MOT...LOC 2117Z 287DEG 22KT 4213 9314
$$
IAC127-192145-
/O.CON.KDMX.TO.W.0043.000000T0000Z-180719T2145Z/
Marshall IA-
417 PM CDT THU JUL 19 2018
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 445 PM CDT FOR NORTHERN
MARSHALL COUNTY...
At 417 PM CDT, a severe thunderstorm capable of producing a tornado
was located 8 miles north of State Center, or 13 miles northwest of
Marshalltown, moving east at 25 mph.
HAZARD...Tornado and half dollar size hail.
SOURCE...Weather spotters reported a funnel cloud.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
This dangerous storm will be near...
Marshalltown around 445 PM CDT.
Other locations impacted by this tornadic thunderstorm include Green
Mountain, St. Anthony, Albion, Marshalltown Municipal Airport,
Clemons, Liscomb and Le Grand.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 4204 9323 4221 9323 4221 9279 4195 9278
TIME...MOT...LOC 2117Z 287DEG 22KT 4213 9314
TORNADO...RADAR INDICATED
HAIL...1.25IN
$$
Johnson911
WWUS53 KDMX 192124 CCA
SVSDMX
Severe Weather Statement
National Weather Service Des Moines IA
424 PM CDT THU JUL 19 2018
IAC075-083-192127-
/O.COR.KDMX.TO.W.0043.000000T0000Z-180719T2145Z/
Hardin IA-Grundy IA-
424 PM CDT THU JUL 19 2018
...THE TORNADO WARNING FOR HARDIN AND GRUNDY COUNTIES IS CANCELLED...
The tornadic thunderstorm which prompted the warning has moved out
of the warned area. Therefore, the warning has been cancelled.
A Tornado Watch remains in effect until 1000 PM CDT for central Iowa.
LAT...LON 4204 9323 4221 9323 4221 9279 4195 9278
TIME...MOT...LOC 2117Z 289DEG 35KT 4213 9314
$$
IAC127-192145-
/O.COR.KDMX.TO.W.0043.000000T0000Z-180719T2145Z/
Marshall IA-
424 PM CDT THU JUL 19 2018
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 445 PM CDT FOR NORTHERN
MARSHALL COUNTY...
At 423 PM CDT, a confirmed tornado was located near Marshalltown,
moving east at 40 mph.
HAZARD...Damaging tornado and half dollar size hail.
SOURCE...Law enforcement confirmed tornado.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
This tornado will be near...
Marshalltown around 435 PM CDT.
Other locations impacted by this tornadic thunderstorm include Green
Mountain, St. Anthony, Albion, Marshalltown Municipal Airport,
Clemons, Liscomb and Le Grand.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
To repeat, a tornado is on the ground. TAKE COVER NOW! Move to a
basement or an interior room on the lowest floor of a sturdy
building. Avoid windows. If you are outdoors, in a mobile home, or in
a vehicle, move to the closest substantial shelter and protect
yourself from flying debris.
&&
LAT...LON 4204 9323 4221 9323 4221 9279 4195 9278
TIME...MOT...LOC 2117Z 289DEG 35KT 4213 9314
TORNADO...OBSERVED
HAIL...1.25IN
$$
Johnson444
WWUS53 KDMX 192131
SVSDMX
Severe Weather Statement
National Weather Service Des Moines IA
431 PM CDT THU JUL 19 2018
IAC127-192145-
/O.CON.KDMX.TO.W.0043.000000T0000Z-180719T2145Z/
Marshall IA-
431 PM CDT THU JUL 19 2018
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 445 PM CDT FOR
NORTHEASTERN MARSHALL COUNTY...
At 431 PM CDT, a confirmed tornado was located near Marshalltown,
moving east at 30 mph.
HAZARD...Damaging tornado and half dollar size hail.
SOURCE...Law enforcement confirmed tornado.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
This tornado will be near...
Marshalltown around 435 PM CDT.
Other locations impacted by this tornadic thunderstorm include Green
Mountain, Albion, Marshalltown Municipal Airport, Liscomb and Le
Grand.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
To repeat, a tornado is on the ground. TAKE COVER NOW! Move to a
basement or an interior room on the lowest floor of a sturdy
building. Avoid windows. If you are outdoors, in a mobile home, or in
a vehicle, move to the closest substantial shelter and protect
yourself from flying debris.
&&
LAT...LON 4202 9312 4220 9304 4220 9279 4195 9278
TIME...MOT...LOC 2131Z 288DEG 28KT 4207 9295
TORNADO...OBSERVED
HAIL...1.25IN
$$
JohnsonThe office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 19, 3:14 AM CDT | Special Weather Statement | DMX | Mahaska | 61 min |
| Jul 19, 12:17 PM CDT | Special Weather Statement | DMX | Emmet, Humboldt, Kossuth | 58 min |
| Jul 19, 2:41 PM CDT | Special Weather Statement | DMX | Franklin, Hamilton, Hardin, Wright | 64 min |
| Jul 19, 2:50 PM CDT | Tornado Warning | DMX | Jasper, Marshall, Polk | 25 min |
| Jul 19, 3:05 PM CDT | Tornado Warning | DMX | Franklin, Hamilton, Hardin, Wright | 40 min |
| Jul 19, 3:11 PM CDT | Tornado Warning | DMX | Jasper | 34 min |
| Jul 19, 3:22 PM CDT | Tornado Warning | DMX | Marshall, Story | 38 min |
| Jul 19, 3:26 PM CDT | Tornado Warning | DMX | Hamilton, Hardin, Marshall, Story | 34 min |
| Jul 19, 3:37 PM CDT | Tornado Warning | DMX | Jasper, Mahaska, Marion | 23 min |
| Jul 19, 3:40 PM CDT | Tornado Warning | DMX | Franklin, Hardin | 35 min |
| Jul 19, 3:54 PM CDT | Tornado Warning | DMX | Jasper, Mahaska, Marion | 36 min |
| Jul 19, 4:14 PM CDT | Tornado Warning | DMX | Mahaska, Marion | 31 min |
| Jul 19, 4:18 PM CDT | Severe Thunderstorm Warning | DMX | Mahaska | 42 min |
| Jul 19, 4:36 PM CDT | Tornado Warning | DMX | Mahaska, Wapello | 24 min |
| Jul 19, 4:37 PM CDT | Tornado Warning | DMX | Marshall, Tama | 23 min |
| Jul 19, 4:52 PM CDT | Tornado Warning | DMX | Mahaska, Wapello | 38 min |
| Jul 19, 4:52 PM CDT | Tornado Warning | DMX | Marshall, Poweshiek, Tama | 38 min |
| Jul 19, 5:12 PM CDT | Tornado Warning | DMX | Poweshiek, Tama | 18 min |
| Jul 19, 5:13 PM CDT | Tornado Warning | DMX | Davis, Mahaska, Wapello | 47 min |
| Jul 19, 5:55 PM CDT | Severe Thunderstorm Warning | DMX | Davis, Wapello | 20 min |
Nearby
Tornado Warnings in Iowa, 2018Every tornado warning in 2018Tornadoes in 2018
Sources
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.