Alert archive / Iowa / Tornado Warnings in 2016
Tornado Warning 17, NWS Des Moines, IA
NWS Des Moines, IA issued this tornado warning at Nov 28, 2016, 3:54 PM CST for Marshall County, Tama County, Iowa. It was in force for 18 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Nov 28, 2016, 3:54 PM CST (21:54 UTC)
- Expired
- Nov 28, 2016, 4:12 PM CST
- In force
- 18 min
- Issued by
- NWS Des Moines, IA
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.75 in
Counties Marshall County, IA, Tama County, IA
The radar
The Des Moines radar (KDMX), 94 km from the middle of the area, began a volume at 21:54 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.
The nearest sounding before it
Davenport, (KDVN), launched 12:00Z, 9.9 hours before the alert went out and 189 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
- 666 m above ground
- 0-6 km bulk shear
- 58 kt
- 0-1 km storm-relative helicity
- 310 m²/s²
- 0-3 km storm-relative helicity
- 333 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
213 WFUS53 KDMX 282154 TORDMX IAC127-171-282230- /O.NEW.KDMX.TO.W.0017.161128T2154Z-161128T2230Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE DES MOINES IA 354 PM CST MON NOV 28 2016 THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A * TORNADO WARNING FOR... EAST CENTRAL MARSHALL COUNTY IN CENTRAL IOWA... NORTHWESTERN TAMA COUNTY IN CENTRAL IOWA... * UNTIL 430 PM CST. * AT 354 PM CST...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO WAS LOCATED NEAR MESKWAKI CASINO...OR 8 MILES EAST OF MARSHALLTOWN...MOVING NORTHEAST AT 25 MPH. HAZARD...TORNADO. SOURCE...RADAR INDICATED ROTATION. IMPACT...EXPECT DAMAGE TO MOBILE HOMES...ROOFS...AND VEHICLES. * THIS TORNADIC THUNDERSTORM WILL REMAIN OVER MAINLY RURAL AREAS OF EAST CENTRAL MARSHALL AND NORTHWESTERN TAMA COUNTIES...INCLUDING THE FOLLOWING LOCATIONS: GARWIN...UNION GROVE STATE PARK... GLADBROOK 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 4200 9276 4207 9283 4227 9267 4215 9246 TIME...MOT...LOC 2154Z 216DEG 23KT 4205 9275 TORNADO...RADAR INDICATED HAIL...<.75IN $$ MF
2 follow-up statements
627
WWUS53 KDMX 282208
SVSDMX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
408 PM CST MON NOV 28 2016
IAC127-171-282230-
/O.CON.KDMX.TO.W.0017.000000T0000Z-161128T2230Z/
MARSHALL IA-TAMA IA-
408 PM CST MON NOV 28 2016
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 430 PM CST FOR
NORTHEASTERN MARSHALL AND NORTHWESTERN TAMA COUNTIES...
AT 408 PM CST...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED 8 MILES NORTH OF MESKWAKI CASINO...OR 10 MILES NORTHWEST
OF TOLEDO...MOVING NORTHEAST AT 25 MPH.
HAZARD...TORNADO.
SOURCE...RADAR INDICATED ROTATION.
IMPACT...EXPECT DAMAGE TO MOBILE HOMES...ROOFS...AND VEHICLES.
LOCATIONS IMPACTED INCLUDE...
GLADBROOK...GARWIN AND UNION GROVE STATE PARK.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! MOVE TO A BASEMENT OR AN INTERIOR ROOM ON THE LOWEST
FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF YOU ARE OUTDOORS...IN A
MOBILE HOME...OR IN A VEHICLE...MOVE TO THE CLOSEST SUBSTANTIAL
SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS.
&&
LAT...LON 4205 9270 4212 9277 4227 9267 4215 9246
TIME...MOT...LOC 2208Z 216DEG 23KT 4212 9268
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$
MF079
WWUS53 KDMX 282212
SVSDMX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
412 PM CST MON NOV 28 2016
IAC127-171-282222-
/O.CAN.KDMX.TO.W.0017.000000T0000Z-161128T2230Z/
MARSHALL IA-TAMA IA-
412 PM CST MON NOV 28 2016
...THE TORNADO WARNING FOR NORTHEASTERN MARSHALL AND NORTHWESTERN
TAMA COUNTIES IS CANCELLED...
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER APPEARS CAPABLE OF PRODUCING A TORNADO.
THEREFORE THE WARNING HAS BEEN CANCELLED. HOWEVER GUSTY WINDS ARE
STILL POSSIBLE WITH THIS THUNDERSTORM.
LAT...LON 4205 9270 4212 9277 4227 9267 4215 9246
TIME...MOT...LOC 2211Z 216DEG 23KT 4214 9266
$$
MFThe office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 28, 3:13 PM CST | Special Weather Statement | DMX | Grundy | 62 min |
| Nov 28, 3:16 PM CST | Special Weather Statement | DMX | Mahaska | 59 min |
| Nov 28, 3:33 PM CST | Tornado Warning | DMX | Butler, Grundy | 27 min |
| Nov 28, 3:43 PM CST | Tornado Warning | DMX | Grundy | 32 min |
| Nov 28, 3:53 PM CST | Tornado Warning | DMX | Mahaska, Poweshiek | 37 min |
| Nov 28, 3:59 PM CST | Tornado Warning | DMX | Bremer, Butler | 46 min |
| Nov 28, 4:19 PM CST | Tornado Warning | DMX | Poweshiek | 41 min |
| Nov 28, 4:41 PM CST | Tornado Warning | DMX | Davis | 13 min |
| Nov 28, 5:11 PM CST | Special Weather Statement | DMX | Wapello | 34 min |
Nearby
Tornado Warnings in Iowa, 2016Every tornado warning in 2016Tornadoes in 2016
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.