Alert archive / Michigan / Flash Flood Warnings in 2012

Flash Flood Warning 2, NWS Gaylord, MI

June 18, 2012Charlevoix County, Michigan

NWS Gaylord, MI issued this flash flood warning at Jun 18, 2012, 7:42 PM EDT for Charlevoix County, Michigan. It was in force for 2 hr. 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 18, 2012, 7:42 PM EDT (23:42 UTC)
Expired
Jun 18, 2012, 10:01 PM EDT
In force
2 hr
Issued by
NWS Gaylord, MI
Area
Storm-based polygon
Flood severity
None

County Charlevoix County, MI

The radar

The NCL Michigan radar (KAPX), 61 km from the middle of the area, began a volume at 23:42 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
Jun 18, 7:44 PM EDTFLOODCharlevoix, MIUS 31 CLOSED BETWEEN GARFIELD ANT ST. MARYS ROADS
Jun 18, 8:09 PM EDTHEAVY RAIN 1.611 W Ironton, MI90 MINUTE TOTAL ENDING AT 8 PM.

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

The nearest sounding before it

Alpena, MI (KAPX), launched 12:00Z, 11.7 hours before the alert went out and 228 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, Alpena, MI at 12:00Z on 2012-06-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Alpena, MI at 12:00Z on 2012-06-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 80 square meters per square second.19395878Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1609 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
80 m²/s²
0-3 km storm-relative helicity
164 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

135 
WGUS53 KAPX 182342
FFWAPX
MIC029-190230-
/O.NEW.KAPX.FF.W.0002.120618T2342Z-120619T0230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE GAYLORD MI
742 PM EDT MON JUN 18 2012

THE NATIONAL WEATHER SERVICE IN GAYLORD HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CENTRAL CHARLEVOIX COUNTY IN NORTHERN LOWER MICHIGAN...

* UNTIL 1030 PM EDT

* AT 741 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE WARNED AREA.
  RAINFALL RATES IN EXCESS OF 2 INCHES PER HOUR ARE EXPECTED THROUGH
  830 PM.

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  CHARLEVOIX...FISHERMANS ISLAND STATE PARK...HORTON BAY...IRONTON...
  NORWOOD AND YOUNG STATE PARK.

  SOME FLOODING HAS ALREADY BEEN REPORTED ALONG US-31 SOUTH OF 
  CHARLEVOIX.  MOTORISTS SHOULD AVOID THIS AREA.

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.

&&

LAT...LON 4525 8538 4526 8539 4530 8536 4530 8535
      4533 8530 4532 8527 4537 8521 4531 8503
      4521 8502 4521 8540 4524 8540

$$


JPB
2 follow-up statements
349 
WGUS73 KAPX 190043
FFSAPX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE GAYLORD MI
843 PM EDT MON JUN 18 2012

MIC029-190230-
/O.CON.KAPX.FF.W.0002.000000T0000Z-120619T0230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CHARLEVOIX MI-
843 PM EDT MON JUN 18 2012

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR CENTRAL CHARLEVOIX
COUNTY UNTIL 1030 PM EDT...

AT 841 PM EDT...SPOTTER AND RADAR RAINFALL ESTIMATES INDICATE 2 TO 3 
INCHES OF RAINFALL FELL ACROSS THE WARNING AREA IN A TWO HOUR TIME 
FRAME.  RUNOFF FROM THIS EXCESSIVE RAINFALL MAY CAUSE FLASH 
FLOODING...ESPECIALLY ALONG SMALL STREAMS AND IN POOR DRAINAGE 
AREAS. SOME LOCATIONS THAT MAY EXPERIENCE FLOODING INCLUDE... 
CHARLEVOIX...FISHERMANS ISLAND STATE PARK...HORTON BAY... 
IRONTON...AND NORWOOD.

FLOODING HAD BEEN REPORTED EARLIER SOUTH OF CHARLEVOIX ALONG US-31.

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 4525 8538 4526 8539 4530 8536 4530 8535
      4533 8530 4532 8527 4537 8521 4531 8503
      4521 8502 4521 8540 4524 8540

$$


JPB
542 
WGUS73 KAPX 190201
FFSAPX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE GAYLORD MI
1001 PM EDT MON JUN 18 2012

MIC029-190215-
/O.CAN.KAPX.FF.W.0002.000000T0000Z-120619T0230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CHARLEVOIX MI-
1001 PM EDT MON JUN 18 2012

...THE FLASH FLOOD WARNING THAT WAS IN EFFECT CENTRAL CHARLEVOIX
COUNTY IS CANCELLED...

RAINFALL AND EXCESS RUNOFF FROM HEAVY RAIN HAS ENDED OVER THE WARNED 
AREA. STREAMS AND CREEKS HAVE RECEDED OR WERE BEGINNING TO 
RECEDE...AND THE THREAT FOR ADDITIONAL FLOODING IS ENDING.

IF FLOODING HAS BEEN OBSERVED...PLEASE REPORT IT TO YOUR LOCAL LAW 
ENFORCEMENT AGENCY.

LAT...LON 4525 8538 4526 8539 4530 8536 4530 8535
      4533 8530 4532 8527 4537 8521 4531 8503
      4521 8502 4521 8540 4524 8540

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 17, 10:04 PM EDTSmall Craft AdvisoryAPX25 hr
Jun 18, 5:48 AM EDTSpecial Marine WarningAPX117 min
Jun 18, 9:33 AM EDTSpecial Marine WarningAPX72 min
Jun 18, 2:59 PM EDTSpecial Marine WarningAPX46 min
Jun 18, 4:10 PM EDTSevere Thunderstorm WarningAPXChippewa50 min
Jun 18, 4:24 PM EDTSpecial Marine WarningAPX81 min
Jun 18, 5:46 PM EDTSpecial Marine WarningAPX119 min
Jun 18, 6:05 PM EDTSpecial Marine WarningAPX105 min
Jun 18, 6:28 PM EDTSpecial Marine WarningAPX2 hr
Jun 18, 6:44 PM EDTSpecial Marine WarningAPX91 min
Jun 18, 6:47 PM EDTSevere Thunderstorm WarningAPXAntrim, Charlevoix, Emmet58 min
Jun 18, 7:13 PM EDTSevere Thunderstorm WarningAPXCheboygan, Emmet29 min
Jun 18, 7:40 PM EDTSevere Thunderstorm WarningAPXBenzie, Grand Traverse, Leelanau50 min
Jun 18, 7:56 PM EDTSevere Thunderstorm WarningAPXAntrim, Kalkaska38 min

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.