Alert archive / Iowa / Tornado Warnings in 2020
Tornado Warning 8, NWS Des Moines, IA
NWS Des Moines, IA issued this tornado warning at May 26, 2020, 1:25 PM CDT for Dallas County, Iowa. It was in force for 35 min. 2 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
- May 26, 2020, 1:25 PM CDT (18:25 UTC)
- Expired
- May 26, 2020, 2:00 PM CDT
- In force
- 35 min
- Issued by
- NWS Des Moines, IA
- Area
- Storm-based polygon
- Tornado
- Observed
- Hail
- 0.0 in
County Dallas County, IA
The radar
The Des Moines radar (KDMX), 18 km from the middle of the area, began a volume at 18:27 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 |
|---|---|---|---|
| May 26, 1:26 PM CDT | FUNNEL CLOUD | 3 Ese Dallas Center, IA | FUNNEL CLOUD CLOSE TO GROUND, COULD NOT SEE THE SURFACE DUE TO BUILDINGS. |
| May 26, 1:28 PM CDT | TORNADO | 2 Ese Dallas Center, IA | POLICE REPORT TORNADO ON GROUND. |
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 |
|---|---|---|---|
| May 26, 1:20 PM CDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Omaha, NE (KOAX), launched 12:00Z, 6.4 hours before the alert went out and 207 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
- 534 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- 70 m²/s²
- 0-3 km storm-relative helicity
- 130 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
693
WFUS53 KDMX 261825
TORDMX
IAC049-261900-
/O.NEW.KDMX.TO.W.0008.200526T1825Z-200526T1900Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Des Moines IA
125 PM CDT Tue May 26 2020
The National Weather Service in Des Moines has issued a
* Tornado Warning for...
Northeastern Dallas County in central Iowa...
* Until 200 PM CDT.
* At 124 PM CDT, a confirmed tornado was located near Waukee, moving
north at 25 mph.
HAZARD...Damaging tornado.
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.
* The tornado will be near...
Dallas Center around 140 PM CDT.
Woodward around 200 PM CDT.
Other locations impacted by this tornadic thunderstorm include
Minburn.
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 4162 9389 4163 9398 4184 9407 4184 9387
TIME...MOT...LOC 1824Z 163DEG 23KT 4164 9391
TORNADO...OBSERVED
HAIL...0.00IN
$$
Martin3 follow-up statements
816
WWUS53 KDMX 261830
SVSDMX
Severe Weather Statement
National Weather Service Des Moines IA
130 PM CDT Tue May 26 2020
IAC049-261900-
/O.CON.KDMX.TO.W.0008.000000T0000Z-200526T1900Z/
Dallas IA-
130 PM CDT Tue May 26 2020
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 200 PM CDT FOR
NORTHEASTERN DALLAS COUNTY...
At 130 PM CDT, a confirmed tornado was located near Dallas Center, or
near Waukee, moving north at 25 mph.
HAZARD...Damaging tornado.
SOURCE...Weather spotters confirmed tornado.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
This tornado will be near...
Woodward around 200 PM CDT.
Other locations impacted by this tornadic thunderstorm include
Minburn.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
To repeat, a tornado is on the ground. TAKE COVER NOW! Move to a
basement or an interior room on the lowest floor of a sturdy
building. Avoid windows. If you are outdoors, in a mobile home, or in
a vehicle, move to the closest substantial shelter and protect
yourself from flying debris.
&&
LAT...LON 4166 9389 4164 9396 4184 9407 4184 9387
TIME...MOT...LOC 1830Z 163DEG 23KT 4168 9393
TORNADO...OBSERVED
HAIL...0.00IN
$$
Martin149
WWUS53 KDMX 261838
SVSDMX
Severe Weather Statement
National Weather Service Des Moines IA
138 PM CDT Tue May 26 2020
IAC049-261900-
/O.CON.KDMX.TO.W.0008.000000T0000Z-200526T1900Z/
Dallas IA-
138 PM CDT Tue May 26 2020
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 200 PM CDT FOR
NORTHEASTERN DALLAS COUNTY...
At 137 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Dallas Center, or 8 miles north of Adel, moving
north at 25 mph.
HAZARD...Tornado.
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...
Woodward around 155 PM CDT.
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 4170 9389 4168 9397 4184 9407 4184 9387
TIME...MOT...LOC 1837Z 163DEG 23KT 4173 9395
TORNADO...RADAR INDICATED
HAIL...0.00IN
$$
Martin743
WWUS53 KDMX 261849
SVSDMX
Severe Weather Statement
National Weather Service Des Moines IA
149 PM CDT Tue May 26 2020
IAC049-261900-
/O.CON.KDMX.TO.W.0008.000000T0000Z-200526T1900Z/
Dallas IA-
149 PM CDT Tue May 26 2020
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 200 PM CDT FOR NORTH
CENTRAL DALLAS COUNTY...
At 145 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Dallas Center, or 8 miles southeast of Perry, moving
north at 25 mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
This dangerous storm will be near...
Woodward around 200 PM CDT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 4174 9391 4172 9399 4184 9407 4184 9391
TIME...MOT...LOC 1845Z 162DEG 20KT 4176 9397
TORNADO...RADAR INDICATED
HAIL...0.00IN
$$
MartinThe office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 26, 1:49 PM CDT | Tornado Warning | DMX | Boone, Dallas | 26 min |
| May 26, 2:22 PM CDT | Tornado Warning | DMX | Poweshiek, Tama | 38 min |
| May 26, 2:25 PM CDT | Tornado Warning | DMX | Boone, Webster | 35 min |
| May 26, 3:47 PM CDT | Tornado Warning | DMX | Humboldt, Wright | 13 min |
| May 26, 3:57 PM CDT | Tornado Warning | DMX | Audubon, Guthrie | 21 min |
| May 26, 4:23 PM CDT | Special Weather Statement | DMX | Mahaska | 22 min |
| May 26, 5:16 PM CDT | Tornado Warning | DMX | Franklin, Wright | 29 min |
| May 26, 6:09 PM CDT | Special Weather Statement | DMX | Cerro Gordo, Worth | 51 min |
| May 26, 6:30 PM CDT | Severe Thunderstorm Warning | DMX | Worth | 30 min |
Nearby
Tornado Warnings in Iowa, 2020Every tornado warning in 2020Tornadoes in 2020
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.