Alert archive / Michigan / Tornado Warnings in 2016
Tornado Warning 5, NWS Grand Rapids, MI
NWS Grand Rapids, MI issued this tornado warning at Aug 20, 2016, 2:12 PM EDT for Allegan County, Kent County, Ottawa County, Michigan. It was in force for 33 min. 6 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
- Aug 20, 2016, 2:12 PM EDT (18:12 UTC)
- Expired
- Aug 20, 2016, 2:45 PM EDT
- In force
- 33 min
- Issued by
- NWS Grand Rapids, MI
- Area
- Storm-based polygon
- Tornado
- Observed
- Hail
- 0.0 in
Counties Allegan County, MI, Kent County, MI, Ottawa County, MI
The radar
The Grand Rapids radar (KGRR), 24 km from the middle of the area, began a volume at 18:11 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 |
|---|---|---|---|
| Aug 20, 2:16 PM EDT | TSTM WND GST 60 | 5 Ene Hamilton, MI | SPOTTER ESTIMATED WIND GUST. TIME ESTIMATED BY RADAR. . |
| Aug 20, 2:23 PM EDT | TORNADO | 3 Wnw North Dorr, MI | TREES AND POWERLINES DOWN NEAR 20TH & ADAMS PER FIRE DEPT. MULTIPLE REPORTS OF A FUNNEL CLOUD OR TORNADO. |
| Aug 20, 2:31 PM EDT | TSTM WND DMG | 3 S Grandville, MI | 911 CALL CENTER RELAYED A CALL FROM THE PUBLIC. EXTENSIVE WIND DAMAGE BEING OBSERVED IN WYOMING. SEVERAL TREES DOWN IN THE AREA. POSSIBLE DAMAGE TO HOUSE. EXTENT OF DAMAGE TO HOUSE IS UNKNOWN. . |
| Aug 20, 2:31 PM EDT | TORNADO | 3 Nnw Byron Center, MI | TREE REPORTED DOWN ON M6, BLOCKING THE RIGHT HAND LANE OF EAST BOUND TRAFFIC. |
| Aug 20, 2:38 PM EDT | TORNADO | 1 Se Grandville, MI | DEBRIS IN THE AIR NEAR 40TH AND IVANREST. |
| Aug 20, 2:42 PM EDT | TSTM WND DMG | 1 Ne Wyoming, MI | TREES DOWN ON HOUSES NEAR 32ND ST AND HIGHGATE AVE ALSO 2900 BLK LONGSTREET AVE. POSSIBLE TORNADO. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Detroit, MI (KDTX), launched 12:00Z, 6.2 hours before the alert went out and 197 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
- 75 J/kg
- Mixed-layer CIN
- -170 J/kg
- Mixed-layer LCL
- 1500 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 38 m²/s²
- 0-3 km storm-relative helicity
- 50 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
374
WFUS53 KGRR 201812
TORGRR
MIC005-081-139-201845-
/O.NEW.KGRR.TO.W.0005.160820T1812Z-160820T1845Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
212 PM EDT SAT AUG 20 2016
THE NATIONAL WEATHER SERVICE IN GRAND RAPIDS HAS ISSUED A
* TORNADO WARNING FOR...
SOUTHEASTERN OTTAWA COUNTY IN SOUTHWESTERN MICHIGAN...
SOUTHWESTERN KENT COUNTY IN SOUTHWESTERN MICHIGAN...
NORTH CENTRAL ALLEGAN COUNTY IN SOUTHWESTERN MICHIGAN...
* UNTIL 245 PM EDT
* AT 211 PM EDT...A TORNADO PRODUCING STORM WAS LOCATED 8 MILES
SOUTHEAST OF ZEELAND...MOVING NORTHEAST AT 25 MPH.
HAZARD...DAMAGING TORNADO.
SOURCE...RADAR 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 TORNADIC STORM WILL BE NEAR...
HUDSONVILLE AROUND 240 PM EDT.
WYOMING AND JENISON AROUND 245 PM EDT.
OTHER LOCATIONS IMPACTED BY THIS TORNADIC THUNDERSTORM INCLUDE
BAUER... BURNIPS...DUTTON...CUTLERVILLE...JAMESTOWN...BYRON
CENTER...DRENTHE... GRANDVILLE...GRAND VALLEY AND ALLENDALE.
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 4301 8586 4286 8555 4264 8590 4270 8601
TIME...MOT...LOC 1811Z 213DEG 22KT 4271 8592
TORNADO...OBSERVED
HAIL...0.00IN
$$
WEBB1 follow-up statement
541
WWUS53 KGRR 201827
SVSGRR
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
227 PM EDT SAT AUG 20 2016
MIC005-201835-
/O.CAN.KGRR.TO.W.0005.000000T0000Z-160820T1845Z/
ALLEGAN MI-
227 PM EDT SAT AUG 20 2016
...THE TORNADO WARNING FOR NORTH CENTRAL ALLEGAN COUNTY IS
CANCELLED...
THE TORNADIC THUNDERSTORM WHICH PROMPTED THE WARNING HAS MOVED OUT
OF THE WARNED AREA. THEREFORE...THE WARNING HAS BEEN CANCELLED.
LAT...LON 4301 8586 4286 8555 4277 8570 4277 8597
TIME...MOT...LOC 1825Z 229DEG 26KT 4279 8582
$$
MIC081-139-201845-
/O.CON.KGRR.TO.W.0005.000000T0000Z-160820T1845Z/
OTTAWA MI-KENT MI-
227 PM EDT SAT AUG 20 2016
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 245 PM EDT FOR
SOUTHEASTERN OTTAWA AND SOUTHWESTERN KENT COUNTIES...
AT 225 PM EDT...A CONFIRMED TORNADO WAS LOCATED 3 MILES SOUTHEAST OF
JAMESTOWN MOVING NORTHEAST AT 30 MPH.
HAZARD...DAMAGING TORNADO.
SOURCE...RADAR 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...
JENISON AROUND 235 PM EDT.
WYOMING AND KENTWOOD AROUND 245 PM EDT.
OTHER LOCATIONS IMPACTED BY THIS TORNADIC THUNDERSTORM INCLUDE
DUTTON...CUTLERVILLE...JAMESTOWN...BYRON
CENTER...DRENTHE...GRANDVILLE... GRAND VALLEY AND ALLENDALE.
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 4301 8586 4286 8555 4277 8570 4277 8597
TIME...MOT...LOC 1825Z 229DEG 26KT 4279 8582
TORNADO...OBSERVED
HAIL...<.75IN
$$
MEADEThe office that day
Everything else NWS Grand Rapids, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 20, 10:06 AM EDT | Special Marine Warning | GRR | 114 min | |
| Aug 20, 10:44 AM EDT | Special Weather Statement | GRR | Muskegon, Oceana, Ottawa | 61 min |
| Aug 20, 11:45 AM EDT | Special Weather Statement | GRR | Lake, Mason, Newaygo | 30 min |
| Aug 20, 12:40 PM EDT | Special Weather Statement | GRR | Allegan, Van Buren | 65 min |
| Aug 20, 1:12 PM EDT | Severe Thunderstorm Warning | GRR | Allegan, Van Buren | 48 min |
| Aug 20, 1:21 PM EDT | Tornado Warning | GRR | Allegan, Van Buren | 24 min |
| Aug 20, 1:47 PM EDT | Tornado Warning | GRR | Allegan, Ottawa | 28 min |
| Aug 20, 2:05 PM EDT | Severe Thunderstorm Warning | GRR | Allegan, Kent, Ottawa | 55 min |
| Aug 20, 2:16 PM EDT | Severe Thunderstorm Warning | GRR | Barry, Calhoun, Eaton, Kalamazoo | 59 min |
| Aug 20, 2:35 PM EDT | Tornado Warning | GRR | Barry, Eaton | 25 min |
| Aug 20, 2:36 PM EDT | Tornado Warning | GRR | Kent | 24 min |
| Aug 20, 2:42 PM EDT | Severe Thunderstorm Warning | GRR | Newaygo | 24 min |
| Aug 20, 2:59 PM EDT | Areal Flood Advisory | GRR | Allegan, Barry, Ionia, Kent, Montcalm | 12 hr |
| Aug 20, 2:59 PM EDT | Tornado Warning | GRR | Kent, Montcalm | 31 min |
| Aug 20, 3:04 PM EDT | Severe Thunderstorm Warning | GRR | Barry, Clinton, Eaton, Ionia | 41 min |
| Aug 20, 3:17 PM EDT | Tornado Warning | GRR | Ionia, Montcalm | 28 min |
| Aug 20, 3:33 PM EDT | Severe Thunderstorm Warning | GRR | Clinton, Gratiot, Ionia, Isabella, Montcalm | 42 min |
| Aug 20, 3:44 PM EDT | Severe Thunderstorm Warning | GRR | Lake | 46 min |
| Aug 20, 4:14 PM EDT | Severe Thunderstorm Warning | GRR | Clinton, Gratiot, Isabella | 31 min |
Nearby
Tornado Warnings in Michigan, 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.