Alert archive / Michigan / Severe Thunderstorm Warnings in 2017
Severe Thunderstorm Warning 13, NWS Grand Rapids, MI
NWS Grand Rapids, MI issued this severe thunderstorm warning at Jun 23, 2017, 12:37 AM EDT for Clare County, Isabella County, Michigan. It was in force for 38 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
- Jun 23, 2017, 12:37 AM EDT (04:37 UTC)
- Expired
- Jun 23, 2017, 1:15 AM EDT
- In force
- 38 min
- Issued by
- NWS Grand Rapids, MI
- Area
- Storm-based polygon
- Tornado
- Possible
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Clare County, MI, Isabella County, MI
The radar
The Grand Rapids radar (KGRR), 115 km from the middle of the area, began a volume at 04:38 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 |
|---|---|---|---|
| Jun 23, 12:38 AM EDT | TSTM WND DMG | Loomis, MI | TREE DOWN ON ROAD. |
| Jun 23, 12:45 AM EDT | TSTM WND DMG | Beal City, MI | TREE DOWN ON ROAD. |
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 00:00Z, 4.6 hours before the alert went out and 164 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
- 1203 J/kg
- Mixed-layer CIN
- -13 J/kg
- Mixed-layer LCL
- 1227 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 64 m²/s²
- 0-3 km storm-relative helicity
- 43 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 2.2
The text
As transmitted.
245
WUUS53 KGRR 230437
SVRGRR
MIC035-073-230515-
/O.NEW.KGRR.SV.W.0013.170623T0437Z-170623T0515Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Grand Rapids MI
1237 AM EDT FRI JUN 23 2017
The National Weather Service in Grand Rapids has issued a
* Severe Thunderstorm Warning for...
Isabella County in central Michigan...
Southeastern Clare County in central Michigan...
* Until 115 AM EDT.
* At 1236 AM EDT, severe thunderstorms were located along a line
extending from 6 miles northwest of Clare to near Farwell to near
Barryton, moving southeast at 25 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Mount Pleasant... Clare... Shepherd...
Farwell... Rosebush... Lake Isabella...
Brinton... Delwin... Beal City...
Loomis... Weidman...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4395 8461 4357 8461 4353 8470 4366 8509
4379 8509 4382 8501 4399 8491
TIME...MOT...LOC 0436Z 297DEG 23KT 4390 8484 4379 8490 4373 8505
TORNADO...POSSIBLE
HAIL...<.75IN
WIND...60MPH
$$
JK2 follow-up statements
372
WWUS53 KGRR 230452
SVSGRR
Severe Weather Statement
National Weather Service Grand Rapids MI
1252 AM EDT FRI JUN 23 2017
MIC035-073-230515-
/O.CON.KGRR.SV.W.0013.000000T0000Z-170623T0515Z/
Isabella MI-Clare MI-
1252 AM EDT FRI JUN 23 2017
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 115 AM EDT
FOR EASTERN ISABELLA AND SOUTHEASTERN CLARE COUNTIES...
At 1251 AM EDT, severe thunderstorms were located along a line
extending from near Clare to near Rosebush to near Lake Isabella,
moving southeast at 25 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Mount Pleasant... Clare... Shepherd...
Rosebush... Lake Isabella... Delwin...
Beal City... Loomis...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4395 8461 4357 8461 4353 8470 4363 8498
4388 8473
TIME...MOT...LOC 0451Z 297DEG 23KT 4386 8474 4375 8480 4369 8495
TORNADO...POSSIBLE
HAIL...<.75IN
WIND...60MPH
$$
JAM318
WWUS53 KGRR 230506
SVSGRR
Severe Weather Statement
National Weather Service Grand Rapids MI
106 AM EDT FRI JUN 23 2017
MIC035-073-230516-
/O.EXP.KGRR.SV.W.0013.000000T0000Z-170623T0515Z/
Isabella MI-Clare MI-
106 AM EDT FRI JUN 23 2017
...THE SEVERE THUNDERSTORM WARNING FOR EASTERN ISABELLA AND
SOUTHEASTERN CLARE COUNTIES WILL EXPIRE AT 115 AM EDT...
The storms which prompted the warning have weakened below severe
limits, and have exited the warned area. Therefore the warning will
be allowed to expire.
LAT...LON 4395 8461 4357 8461 4353 8470 4363 8498
4388 8473
TIME...MOT...LOC 0506Z 297DEG 23KT 4382 8463 4371 8469 4365 8484
$$
JAMThe office that day
Everything else NWS Grand Rapids, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 22, 9:53 PM EDT | Flood Watch | GRR | Allegan, Barry, Clare, Clinton, Eaton, Gratiot and 13 more | 6 hr |
| Jun 22, 10:01 PM EDT | Special Weather Statement | GRR | Isabella, Mecosta | 59 min |
| Jun 22, 11:01 PM EDT | Areal Flood Advisory | GRR | Gratiot, Isabella, Mecosta, Montcalm | 4 hr |
| Jun 22, 11:05 PM EDT | River Flood Advisory | GRR | Isabella | 69 hr |
| Jun 22, 11:32 PM EDT | Areal Flood Warning | GRR | Isabella, Mecosta, Montcalm | 24 hr |
| Jun 22, 11:37 PM EDT | Special Weather Statement | GRR | Lake | 53 min |
| Jun 23, 12:01 AM EDT | Areal Flood Advisory | GRR | Lake, Mason | 4 hr |
| Jun 23, 12:06 AM EDT | Special Weather Statement | GRR | Clare, Osceola | 54 min |
| Jun 23, 12:25 AM EDT | Areal Flood Advisory | GRR | Clare, Lake, Mecosta, Newaygo, Osceola | 4 hr |
| Jun 23, 12:36 AM EDT | River Flood Warning | GRR | Isabella | 4 days |
| Jun 23, 2:51 AM EDT | Special Weather Statement | GRR | Isabella, Montcalm | 54 min |
| Jun 23, 11:26 AM EDT | River Flood Warning | GRR | Newaygo | 51 hr |
| Jun 23, 11:26 AM EDT | River Flood Warning | GRR | Mecosta | 63 hr |
| Jun 23, 11:26 AM EDT | River Flood Warning | GRR | Gratiot | 3 days |
| Jun 23, 11:30 AM EDT | River Flood Advisory | GRR | Osceola | 21 hr |
Nearby
Severe Thunderstorm Warnings in Michigan, 2017Every severe thunderstorm warning 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.