Alert archive / Michigan / Flash Flood Warnings in 2011
Flash Flood Warning 4, NWS Grand Rapids, MI
NWS Grand Rapids, MI issued this flash flood warning at May 29, 2011, 2:38 PM EDT for Allegan County, Van Buren County, Michigan. It was in force for 5 hr. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- May 29, 2011, 2:38 PM EDT (18:38 UTC)
- Expired
- May 29, 2011, 7:42 PM EDT
- In force
- 5 hr
- Issued by
- NWS Grand Rapids, MI
- Area
- Storm-based polygon
- Flood severity
- None
Counties Allegan County, MI, Van Buren County, MI
The radar
The Grand Rapids radar (KGRR), 74 km from the middle of the area, began a volume at 18:38 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.
The nearest sounding before it
Detroit, MI (KDTX), launched 12:00Z, 6.6 hours before the alert went out and 218 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
- 12 J/kg
- Mixed-layer CIN
- -294 J/kg
- Mixed-layer LCL
- 499 m above ground
- 0-6 km bulk shear
- 64 kt
- 0-1 km storm-relative helicity
- 128 m²/s²
- 0-3 km storm-relative helicity
- 298 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.4
The text
As transmitted, in the capitals the NWS used until 2016.
792
WGUS53 KGRR 291838
FFWGRR
MIC005-159-300630-
/O.NEW.KGRR.FF.W.0004.110529T1838Z-110530T0630Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
238 PM EDT SUN MAY 29 2011
THE NATIONAL WEATHER SERVICE IN GRAND RAPIDS HAS ISSUED A
* FLASH FLOOD WARNING FOR...
ALLEGAN COUNTY IN SOUTHWEST MICHIGAN...
VAN BUREN COUNTY IN SOUTHWEST MICHIGAN...
* UNTIL 230 AM EDT MONDAY
* AT 233 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE
WARNED AREA. THESE STORMS STRETCHED BACK INTO THE CHICAGO AREA
WHERE AN INCH OF RAIN IN 15 MINUTES HAVE BEEN REPORTED. THESE
STORMS WILL IMPACT THE WARNING AREA THROUGH 5 PM WITH STORM TOTAL
RAINFALL AMOUNTS IN EXCESS OF TWO INCHES EXPECTED. THE GROUND IS
ALREADY SATURATED FROM RECENT RAINFALL AND RUNOFF WILL BE
EFFICIENT.
* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
ALLEGAN...SAUGATUCK...SOUTH HAVEN...BANGOR...DECATUR...FENNVILLE...
PAW PAW...PLAINWELL...WAYLAND...ALMENA...ARMSTRONG CORNERS...
BENTHEIM...BERLAMONT...BRAVO...CHESHIRE CENTER...CHICORA...
CORNING...DIAMOND SPRINGS...DUNNINGVILLE...FILLMORE...GREEN LAKE...
HOOPER...HOPKINSBURG...LEISURE...MENTHA...MONTEREY...NEELEY...NEW
RICHMOND...OVERISEL AND PEARL.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES
AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS.
EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE
BANKS OF CREEKS AND STREAMS.
&&
LAT...LON 4207 8622 4224 8622 4224 8636 4225 8637
4247 8626 4277 8621 4277 8555 4242 8555
4242 8577 4207 8576
$$
MJS2 follow-up statements
857
WGUS73 KGRR 292023
FFSGRR
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
423 PM EDT SUN MAY 29 2011
MIC005-159-300630-
/O.CON.KGRR.FF.W.0004.000000T0000Z-110530T0630Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
VAN BUREN MI-ALLEGAN MI-
423 PM EDT SUN MAY 29 2011
...FLASH FLOOD WARNING REMAINS IN EFFECT FOR ALLEGAN AND VAN BUREN
COUNTIES UNTIL 230 AM EDT MONDAY...
AT 419 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE WARNED AREA. RADAR
ESTIMATED THAT OVER TWO INCHES OF RAIN HAD FALLEN IN PORTIONS OF THE
BLACK RIVER BASIN. AN ADDITIONAL HALF INCH TO INCH OF RAIN IS
POSSIBLE THROUGH 6 PM.
RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
ALLEGAN...SAUGATUCK...SOUTH HAVEN...BANGOR...DECATUR...FENNVILLE...
PAW PAW...PLAINWELL...WAYLAND...ALMENA...ARMSTRONG CORNERS...
BENTHEIM...BERLAMONT...BRAVO...CHESHIRE CENTER...CHICORA...CORNING...
DIAMOND SPRINGS...DUNNINGVILLE...FILLMORE...GREEN LAKE...HOOPER...
HOPKINSBURG...LEISURE...MENTHA...MONTEREY...NEW RICHMOND...
OVERISEL...PEARL AND PIER COVE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE MINOR FLOODING OF SMALL
CREEKS AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES
AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS.
&&
LAT...LON 4207 8622 4224 8622 4224 8636 4225 8637
4247 8626 4277 8621 4277 8555 4242 8555
4242 8577 4207 8576
$$
MJS477
WGUS73 KGRR 292342
FFSGRR
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
742 PM EDT SUN MAY 29 2011
MIC005-159-292355-
/O.CAN.KGRR.FF.W.0004.000000T0000Z-110530T0630Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
VAN BUREN MI-ALLEGAN MI-
742 PM EDT SUN MAY 29 2011
...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR ALLEGAN AND VAN
BUREN COUNTIES IS CANCELLED...
EXCESS RUNOFF FROM HEAVY RAIN HAS ENDED OVER THE WARNED AREA. STREAMS
AND CREEKS IN THE WARNED AREA WERE HIGH BUT NO IMPACTS FROM FLOODING
WERE OCCURRING AT THIS TIME ACCORDING TO DISPATCH. IF FLOODING HAS
BEEN OBSERVED...PLEASE REPORT IT TO YOUR LOCAL LAW ENFORCEMENT
AGENCY.
LAT...LON 4207 8622 4224 8622 4224 8636 4225 8637
4247 8626 4277 8621 4277 8555 4242 8555
4242 8577 4207 8576
$$
MJSThe office that day
Everything else NWS Grand Rapids, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 28, 9:38 PM EDT | River Flood Advisory | GRR | Jackson | 61 hr |
| May 29, 11:12 AM EDT | Flood Watch | GRR | Allegan, Barry, Calhoun, Clinton, Eaton, Ingham and 6 more | 11 hr |
| May 29, 1:21 PM EDT | Special Marine Warning | GRR | 84 min | |
| May 29, 1:39 PM EDT | Special Weather Statement | GRR | Allegan, Van Buren | 51 min |
| May 29, 2:25 PM EDT | Special Weather Statement | GRR | Allegan, Ottawa, Van Buren | 80 min |
| May 29, 2:44 PM EDT | Special Marine Warning | GRR | 72 min | |
| May 29, 3:14 PM EDT | Special Weather Statement | GRR | Allegan, Barry, Calhoun, Ionia, Kalamazoo, Van Buren | 61 min |
| May 29, 3:27 PM EDT | Areal Flood Advisory | GRR | Barry, Calhoun, Eaton, Ingham, Jackson, Kalamazoo | 12 hr |
| May 29, 3:58 PM EDT | Tornado Warning | GRR | Kalamazoo | 47 min |
| May 29, 4:08 PM EDT | Severe Thunderstorm Warning | GRR | Barry | 52 min |
| May 29, 4:16 PM EDT | Tornado Warning | GRR | Kalamazoo | 31 min |
| May 29, 4:25 PM EDT | Tornado Warning | GRR | Barry, Calhoun | 35 min |
| May 29, 4:47 PM EDT | Tornado Warning | GRR | Eaton | 28 min |
| May 29, 4:54 PM EDT | Tornado Warning | GRR | Ingham, Jackson | 51 min |
| May 29, 5:01 PM EDT | Areal Flood Advisory | GRR | Clinton | 12 hr |
| May 29, 5:50 PM EDT | Flash Flood Warning | GRR | Clinton, Eaton, Ingham, Ionia | 6 hr |
| May 29, 7:55 PM EDT | River Flood Warning | GRR | Kent | 5 days |
Nearby
Flash Flood Warnings in Michigan, 2011Every flash flood warning in 2011
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.