Alert archive / Michigan / Special Weather Statements in 2016
Special Weather Statement, NWS Grand Rapids, MI
NWS Grand Rapids, MI issued this special weather statement at Aug 13, 2016, 2:21 AM EDT for Ingham County, Michigan. It was in force for 54 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
- Aug 13, 2016, 2:21 AM EDT (06:21 UTC)
- Expired
- Aug 13, 2016, 3:15 AM EDT
- In force
- 54 min
- Issued by
- NWS Grand Rapids, MI
County Ingham County, MI
The radar
The Detroit radar (KDTX), 80 km from the middle of the area, began a volume at 06:24 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
Detroit, MI (KDTX), launched 00:00Z, 6.4 hours before the alert went out and 84 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
- 293 J/kg
- Mixed-layer CIN
- -55 J/kg
- Mixed-layer LCL
- 857 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 20 m²/s²
- 0-3 km storm-relative helicity
- 18 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
147
WWUS83 KGRR 130621
SPSGRR
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
221 AM EDT SAT AUG 13 2016
MIZ067-074-130715-
INGHAM-JACKSON-
221 AM EDT SAT AUG 13 2016
...A STRONG THUNDERSTORM WILL AFFECT NORTHEASTERN JACKSON AND INGHAM
COUNTIES...
AT 220 AM EDT...A STRONG THUNDERSTORM WAS LOCATED OVER
LESLIE...MOVING NORTHEAST AT 35 MPH.
WINDS IN EXCESS OF 40 MPH AND FREQUENT LIGHTNING ARE POSSIBLE WITH
THIS STORM.
LOCATIONS IMPACTED INCLUDE...
MASON...WILLIAMSTON...LESLIE...STOCKBRIDGE...SANDSTONE...AURELIUS...
ONONDAGA...BUNKER HILL...WEBBERVILLE...DANSVILLE...EDEN...
RIVES JUNCTION...FITCHBURG...BELL OAK...TOPKINS...MUNITH AND OKEMOS.
LAT...LON 4224 8452 4242 8460 4251 8460 4278 8432
4278 8416 4237 8413
TIME...MOT...LOC 0620Z 234DEG 32KT 4246 8448
$$
MJSThe office that day
Everything else NWS Grand Rapids, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 13, 12:46 AM EDT | Areal Flood Warning | GRR | Allegan, Barry, Calhoun, Eaton, Kalamazoo, Van Buren | 12 hr |
| Aug 13, 1:21 AM EDT | Special Weather Statement | GRR | Calhoun | 54 min |
| Aug 13, 1:38 AM EDT | Areal Flood Advisory | GRR | Ingham, Jackson | 12 hr |
| Aug 13, 2:32 AM EDT | Areal Flood Warning | GRR | Ingham | 12 hr |
Nearby
Special Weather Statements in Michigan, 2016Every special weather statement 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.