Alert archive / Michigan / Tornado Warnings in 2017
Tornado Warning 1, NWS Grand Rapids, MI
NWS Grand Rapids, MI issued this tornado warning at Apr 10, 2017, 8:37 PM EDT for Ionia County, Kent County, Michigan. It was in force for 23 min. 1 report 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
- Apr 10, 2017, 8:37 PM EDT (00:37 UTC)
- Expired
- Apr 10, 2017, 9:00 PM EDT
- In force
- 23 min
- Issued by
- NWS Grand Rapids, MI
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.75 in
Counties Ionia County, MI, Kent County, MI
The radar
The Grand Rapids radar (KGRR), 24 km from the middle of the area, began a volume at 00:37 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 |
|---|---|---|---|
| Apr 10, 8:38 PM EDT | TORNADO | 3 Nnw Freeport, MI | EF1 TORNADO CONFIRMED FROM DAMAGE SURVEY. PATH LENGTH 5.25 MILES. PATH WIDTH 220 YARDS. PEAK WINDS ESTIMATED AT 90 MPH. DOZENS OF LARGE TREES DOWN AND SIGNIFICANT DAMAGE TO OUTBUILDINGS. |
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 |
|---|---|---|---|
| Apr 10, 2:48 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
The nearest sounding before it
Detroit, MI (KDTX), launched 00:00Z, 0.6 hours before the alert went out and 151 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
- 88 J/kg
- Mixed-layer CIN
- -57 J/kg
- Mixed-layer LCL
- 1361 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 79 m²/s²
- 0-3 km storm-relative helicity
- 137 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.0
The text
As transmitted.
561
WFUS53 KGRR 110037
TORGRR
MIC067-081-110100-
/O.NEW.KGRR.TO.W.0001.170411T0037Z-170411T0100Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Grand Rapids MI
837 PM EDT MON APR 10 2017
The National Weather Service in Grand Rapids has issued a
* Tornado Warning for...
Southeastern Kent County in southwestern Michigan...
Southwestern Ionia County in south central Michigan...
* Until 900 PM EDT.
* At 837 PM EDT, a severe thunderstorm capable of producing a tornado
was located north of Freeport, moving east at 50 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...
Lake Odessa around 850 PM EDT.
Other locations impacted by this tornadic thunderstorm include
Clarksville.
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.
This cluster of thunderstorms is capable of producing tornadoes and
widespread significant wind damage. Do not wait to see or hear the
tornado. For your protection move to an interior room on the lowest
floor of a building.
&&
LAT...LON 4277 8541 4284 8541 4289 8509 4277 8503
TIME...MOT...LOC 0037Z 265DEG 43KT 4279 8531
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$
CAS3 follow-up statements
033
WWUS53 KGRR 110040
SVSGRR
Severe Weather Statement
National Weather Service Grand Rapids MI
840 PM EDT MON APR 10 2017
MIC067-081-110100-
/O.CON.KGRR.TO.W.0001.000000T0000Z-170411T0100Z/
Kent MI-Ionia MI-
840 PM EDT MON APR 10 2017
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 900 PM EDT FOR
SOUTHEASTERN KENT AND SOUTHWESTERN IONIA COUNTIES...
At 839 PM EDT, a confirmed tornado was located over Freeport, moving
east at 50 mph.
HAZARD...Damaging tornado.
SOURCE...Radar confirmed tornado.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
This tornado will be near...
Lake Odessa around 850 PM EDT.
Other locations impacted by this tornadic thunderstorm include
Clarksville.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
To repeat, a tornado is on the ground. TAKE COVER NOW! Move to a
basement or an interior room on the lowest floor of a sturdy
building. Avoid windows. If you are outdoors, in a mobile home, or in
a vehicle, move to the closest substantial shelter and protect
yourself from flying debris.
This cluster of thunderstorms is capable of producing tornadoes and
widespread significant wind damage. Do not wait to see or hear the
tornado. For your protection move to an interior room on the lowest
floor of a building.
&&
LAT...LON 4277 8541 4284 8541 4289 8509 4277 8503
TIME...MOT...LOC 0039Z 265DEG 43KT 4279 8527
TORNADO...OBSERVED
HAIL...<.75IN
$$
04725
WWUS53 KGRR 110046
SVSGRR
Severe Weather Statement
National Weather Service Grand Rapids MI
846 PM EDT MON APR 10 2017
MIC081-110055-
/O.CAN.KGRR.TO.W.0001.000000T0000Z-170411T0100Z/
Kent MI-
846 PM EDT MON APR 10 2017
...THE TORNADO WARNING FOR SOUTHEASTERN KENT COUNTY IS CANCELLED...
The tornadic thunderstorm which prompted the warning has moved out
of the warned area. Therefore the warning has been cancelled.
A severe thunderstorm watch remains in effect until 1100 PM EDT for
south central and southwestern Michigan.
LAT...LON 4277 8528 4286 8530 4289 8509 4277 8503
TIME...MOT...LOC 0045Z 256DEG 25KT 4282 8524
$$
MIC067-110100-
/O.CON.KGRR.TO.W.0001.000000T0000Z-170411T0100Z/
Ionia MI-
846 PM EDT MON APR 10 2017
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 900 PM EDT FOR
SOUTHWESTERN IONIA COUNTY...
At 845 PM EDT, a confirmed tornado was located 5 miles northeast of
Freeport, moving east at 30 mph.
HAZARD...Damaging tornado.
SOURCE...Radar confirmed tornado.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
This tornado will be near...
Lake Odessa around 855 PM EDT.
Other locations impacted by this tornadic thunderstorm include
Clarksville.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
To repeat, a tornado is on the ground. TAKE COVER NOW! Move to a
basement or an interior room on the lowest floor of a sturdy
building. Avoid windows. If you are outdoors, in a mobile home, or in
a vehicle, move to the closest substantial shelter and protect
yourself from flying debris.
Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!
This cluster of thunderstorms is capable of producing tornadoes and
widespread significant wind damage. Do not wait to see or hear the
tornado. For your protection move to an interior room on the lowest
floor of a building.
&&
LAT...LON 4277 8528 4286 8530 4289 8509 4277 8503
TIME...MOT...LOC 0045Z 256DEG 25KT 4282 8524
TORNADO...OBSERVED
HAIL...<.75IN
$$
04818
WWUS53 KGRR 110053
SVSGRR
Severe Weather Statement
National Weather Service Grand Rapids MI
853 PM EDT MON APR 10 2017
MIC067-110103-
/O.EXP.KGRR.TO.W.0001.000000T0000Z-170411T0100Z/
Ionia MI-
853 PM EDT MON APR 10 2017
...THE TORNADO WARNING FOR SOUTHWESTERN IONIA COUNTY WILL EXPIRE AT
900 PM EDT...
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore the warning will be allowed to expire.
A severe thunderstorm watch remains in effect until 1100 PM EDT for
south central and southwestern Michigan.
LAT...LON 4277 8528 4286 8530 4289 8509 4277 8503
TIME...MOT...LOC 0053Z 265DEG 43KT 4283 8513
$$
04The office that day
Everything else NWS Grand Rapids, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 10, 8:02 PM EDT | Special Weather Statement | GRR | Kent | 28 min |
| Apr 10, 8:03 PM EDT | Areal Flood Advisory | GRR | Allegan, Kent, Ottawa | 6 hr |
| Apr 10, 8:11 PM EDT | Severe Thunderstorm Warning | GRR | Kent | 34 min |
| Apr 10, 8:26 PM EDT | Special Weather Statement | GRR | Barry | 34 min |
| Apr 10, 8:34 PM EDT | Special Marine Warning | GRR | 26 min | |
| Apr 10, 8:47 PM EDT | Severe Thunderstorm Warning | GRR | Allegan | 28 min |
| Apr 10, 9:03 PM EDT | Areal Flood Advisory | GRR | Clinton, Gratiot, Ionia | 6 hr |
| Apr 10, 11:00 PM EDT | River Flood Warning | GRR | Clinton | 5 days |
| Apr 10, 11:46 PM EDT | River Flood Warning | GRR | Kent | 50 hr |
| Apr 10, 11:46 PM EDT | River Flood Warning | GRR | Kent | 50 hr |
| Apr 11, 12:31 AM EDT | River Flood Advisory | GRR | Kalamazoo | 3 days |
| Apr 11, 12:31 AM EDT | River Flood Advisory | GRR | Ingham | 37 hr |
| Apr 11, 1:59 AM EDT | River Flood Advisory | GRR | Calhoun | 42 hr |
| Apr 11, 10:25 AM EDT | River Flood Advisory | GRR | Kalamazoo | 36 hr |
| Apr 11, 4:25 PM EDT | River Flood Advisory | GRR | Ionia | 29 days |
Nearby
Tornado Warnings in Michigan, 2017Every tornado warning in 2017Tornadoes in 2017
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.