Alert archive / Michigan / Flash Flood Warnings in 2012

Flash Flood Warning 4, NWS Gaylord, MI

July 25, 2012Manistee County, Michigan

NWS Gaylord, MI issued this flash flood warning at Jul 25, 2012, 10:46 PM EDT for Manistee County, Michigan. It was in force for 3 hr. 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
Jul 25, 2012, 10:46 PM EDT (02:46 UTC)
Expired
Jul 26, 2012, 1:30 AM EDT
In force
3 hr
Issued by
NWS Gaylord, MI
Area
Storm-based polygon
Flood severity
None

County Manistee County, MI

The radar

The NCL Michigan radar (KAPX), 138 km from the middle of the area, began a volume at 02:47 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

TimeReportWhereRemark
Jul 25, 11:20 PM EDTHEAVY RAIN 1.28Bear Lake, MI2 HR TOTAL THRU 11 PM. MICHIGAN AGRICULTURAL WEATHER NETWORK SITE.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 00:00Z, 2.8 hours before the alert went out and 149 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.

Skew-T log-pSkew-T log-p diagram, Green Bay/Straub, WI at 00:00Z on 2012-07-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2643 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Green Bay/Straub, WI at 00:00Z on 2012-07-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 71 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
2643 J/kg
Mixed-layer CIN
-29 J/kg
Mixed-layer LCL
1451 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
71 m²/s²
0-3 km storm-relative helicity
212 m²/s²
Significant tornado parameter
1.2
Supercell composite
16.9

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

342 
WGUS53 KAPX 260246
FFWAPX
MIC101-260530-
/O.NEW.KAPX.FF.W.0004.120726T0246Z-120726T0530Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE GAYLORD MI
1046 PM EDT WED JUL 25 2012

THE NATIONAL WEATHER SERVICE IN GAYLORD HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  MANISTEE COUNTY IN NORTHERN LOWER MICHIGAN...

* UNTIL 130 AM EDT

* AT 1045 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED  
  CONTINUOUS THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE
  WARNED AREA FOR THE LAST TWO HOURS. RADAR ESTIMATED A SWATH OF
  TWO TO THREE INCHES OF RAIN HAS FALLEN ACROSS CENTRAL PORTIONS
  OF THE COUNTY. 

* ALTHOUGH THUNDERSTORMS WILL EXIT THE COUNTY IN THE NEXT 30 MINUTES
  ...ADDITIONAL THUNDERSTORMS WERE FORMING OVER LAKE MICHIGAN.

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  MANISTEE...BRETHREN...COPEMISH...DUBLIN...EASTLAKE...KALEVA...     
  NORWALK...ONEKAMA...ORCHARD BEACH STATE PARK...PARKDALE...PIERPORT
  AND WELLSTON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. DO
NOT ENTER THE WATER. TURN AROUND AND MOVE UP TO HIGHER GROUND TO
ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN
WATER BEGINS RISING.

&&

LAT...LON 4420 8637 4421 8638 4424 8636 4435 8628
      4441 8626 4447 8627 4450 8625 4451 8582
      4416 8582 4417 8639 4419 8639

$$

HALBLAUB
3 follow-up statements
876 
WGUS73 KAPX 260328
FFSAPX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE GAYLORD MI
1128 PM EDT WED JUL 25 2012

MIC101-260530-
/O.CON.KAPX.FF.W.0004.000000T0000Z-120726T0530Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MANISTEE MI-
1128 PM EDT WED JUL 25 2012

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR MANISTEE COUNTY UNTIL
130 AM EDT...

AT 1125 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
PATCHY LIGHT RAIN CONTINUING TO FALL ACROSS THE WARNED AREA. 
THUNDERSTORMS PRODUCED VERY HEAVY RAIN EARLIER IN THE EVENING. RADAR 
ESIMATES 2 TO 3 INCHES OF RAIN FELL IN A NARROW CORRIDOR FROM BEAR 
LAKE TO NEAR MESICK. THERE STILL MAY BE A DELAYED RESPONSE IN AREA 
CREEKS AND STREAMS...WITH RAPID RISES AND FLASH FLOODING POSSIBLE.

RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
MANISTEE...BRETHREN...COPEMISH...DUBLIN...EASTLAKE...KALEVA...
NORWALK...ONEKAMA...ORCHARD BEACH STATE PARK...PARKDALE...PIERPORT
AND WELLSTON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLOODING IS OBSERVED...ACT QUICKLY. DO NOT
ENTER THE WATER. TURN AROUND AND MOVE UP TO HIGHER GROUND. DO NOT
STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

&&

LAT...LON 4420 8637 4421 8638 4424 8636 4435 8628
      4441 8626 4447 8627 4450 8625 4451 8582
      4416 8582 4417 8639 4419 8639

$$

HALBLAUB
647 
WGUS73 KAPX 260430
FFSAPX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE GAYLORD MI
1230 AM EDT THU JUL 26 2012

MIC101-260530-
/O.CON.KAPX.FF.W.0004.000000T0000Z-120726T0530Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MANISTEE MI-
1230 AM EDT THU JUL 26 2012

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR MANISTEE COUNTY UNTIL
130 AM EDT...

AT 1227 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
LIGHT RAIN DIMINISHING IN MANISTEE COUNTY. HOWEVER...THUNDERSTORMS 
PRODUCED VERY HEAVY RAIN EARLIER IN THE EVENING. RADAR ESTIMATES 2 
TO 3 INCHES OF RAIN FELL IN A CORRIDOR FROM BEAR LAKE TO NEAR 
MESICK. AREAS OF HIGH WATER CAN STILL BE EXPECTED IN PORTIONS OF 
MANISTEE COUNTY.

RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE... 
ONEKAMA...BRETHREN...AND KALEVA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLOODING IS OBSERVED...ACT QUICKLY. DO NOT
ENTER THE WATER. TURN AROUND AND MOVE UP TO HIGHER GROUND. DO NOT
STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

&&

LAT...LON 4420 8637 4421 8638 4424 8636 4435 8628
      4441 8626 4447 8627 4450 8625 4451 8582
      4416 8582 4417 8639 4419 8639

$$
202 
WGUS73 KAPX 260529
FFSAPX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE GAYLORD MI
129 AM EDT THU JUL 26 2012

MIC101-260544-
/O.EXP.KAPX.FF.W.0004.000000T0000Z-120726T0530Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MANISTEE MI-
129 AM EDT THU JUL 26 2012

...THE FLASH FLOOD WARNING THAT WAS IN EFFECT MANISTEE COUNTY WILL BE
ALLOWED TO EXPIRE AT 130 AM EDT...

EXCESS RUNOFF FROM HEAVY RAIN HAS ENDED OVER THE WARNED AREA. STREAMS
AND CREEKS IN THE WARNED AREA HAVE RECEDED OR WERE BEGINNING TO
RECEDE...ENDING THE FLOOD THREAT. IF FLOODING HAS BEEN OBSERVED...
PLEASE REPORT IT TO YOUR LOCAL LAW ENFORCEMENT AGENCY.

LAT...LON 4420 8637 4421 8638 4424 8636 4435 8628
      4441 8626 4447 8627 4450 8625 4451 8582
      4416 8582 4417 8639 4419 8639

$$



JZ

The office that day

Everything else NWS Gaylord, MI issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 25, 8:22 PM EDTSpecial Marine WarningAPX83 min
Jul 25, 8:40 PM EDTSevere Thunderstorm WarningAPXMissaukee, Wexford65 min
Jul 25, 8:57 PM EDTSevere Thunderstorm WarningAPXManistee, Missaukee, Wexford60 min
Jul 25, 8:59 PM EDTTornado WarningAPXMissaukee, Wexford34 min
Jul 25, 9:58 PM EDTSevere Thunderstorm WarningAPXGladwin44 min
Jul 25, 10:22 PM EDTFlash Flood WarningAPXMissaukee, Wexford3 hr
Jul 25, 10:34 PM EDTSevere Thunderstorm WarningAPXArenac29 min
Jul 25, 11:16 PM EDTFlash Flood WarningAPXGladwin3 hr

Nearby

Flash Flood Warnings in Michigan, 2012Every flash flood warning in 2012

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.