Alert archive / Maine / Flash Flood Warnings in 2012

Flash Flood Warning 5, NWS Caribou, ME

June 24, 20124 counties in Maine

NWS Caribou, ME issued this flash flood warning at Jun 24, 2012, 1:29 AM EDT for 4 counties in Maine. It was in force for 3 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
Jun 24, 2012, 1:29 AM EDT (05:29 UTC)
Expired
Jun 24, 2012, 4:30 AM EDT
In force
3 hr
Issued by
NWS Caribou, ME
Area
Storm-based polygon
Flood severity
None

Counties Aroostook County, ME, Penobscot County, ME, Piscataquis County, ME, Washington County, ME

The radar

The Caribou radar (KCBW), 37 km from the middle of the area, began a volume at 05:31 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

Caribou, ME (KCAR), launched 00:00Z, 5.5 hours before the alert went out and 115 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, Caribou, ME at 00:00Z on 2012-06-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 251 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, Caribou, ME at 00:00Z on 2012-06-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -58 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
251 J/kg
Mixed-layer CIN
-5 J/kg
Mixed-layer LCL
716 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
-58 m²/s²
0-3 km storm-relative helicity
38 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.

981 
WGUS51 KCAR 240529
FFWCAR
MEC003-019-021-029-240830-
/O.NEW.KCAR.FF.W.0005.120624T0529Z-120624T0830Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE CARIBOU ME
129 AM EDT SUN JUN 24 2012

THE NATIONAL WEATHER SERVICE IN CARIBOU MAINE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHEASTERN PENOBSCOT COUNTY IN EAST CENTRAL MAINE...
  THIS INCLUDES THE CITIES OF...PATTEN...MILLINOCKET...
  EAST CENTRAL PISCATAQUIS COUNTY IN NORTH CENTRAL MAINE...
  THIS INCLUDES THE CITY OF MOUNT KATAHDIN...
  SOUTHEASTERN AROOSTOOK COUNTY IN NORTHERN MAINE...
  EXTREME NORTHWESTERN WASHINGTON COUNTY IN SOUTHEAST MAINE...
  THIS INCLUDES THE CITY OF DANFORTH...

* UNTIL 430 AM EDT

* AT 117 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  A CONTINUED THREAT OF FLASH FLOODING FROM A LARGE...SLOW MOVING    
  RAIN COMPLEX ACROSS EAST CENTRAL MAINE. RADAR ESTIMATES INDICATE   
  RAINFALL TOTALS OF UP 7.5 INCHES JUST WEST OF PATTEN AND SOUTHWEST 
  OF SHIN POND. 

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO SMYRNA
  MILLS...SHIN POND...SHERMAN...SHERMAN STATION...ISLAND FALLS AND   
  PATTEN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
BROOKS AND STREAMS...HIGHWAYS AND UNDERPASSES. IN ADDITION...COUNTRY
ROADS AND FARMLAND ALONG THE BANKS OF BROOKS AND STREAMS WILL BE
SUBJECT TO FLOODING. IF YOU ENCOUNTER WATER ON THE ROADWAY...TURN
AROUND...DONT DROWN!

NEVER TRY TO CROSS FLOOD WATERS IN YOUR VEHICLE OR ON FOOT. THE FLOOD
WATERS ARE USUALLY DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING
WATER IS POWERFUL ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN
ENCOUNTERING FLOODED ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT
DROWN!

TO REPORT FLOODING...HAVE THE NEAREST LAW ENFORCEMENT AGENCY RELAY
YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE.

&&

LAT...LON 4570 6786 4564 6784 4553 6828 4555 6873
      4579 6903 4584 6908 4636 6873 4628 6824
      4613 6800 4597 6792 4594 6793 4582 6789
      4580 6779 4569 6780

$$

WALLINGFORD

The office that day

Everything else NWS Caribou, ME issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 23, 10:42 PM EDTFlash Flood WarningCARAroostook, Hancock, Penobscot, Piscataquis, Washington3 hr
Jun 24, 4:35 AM EDTFlash Flood WarningCARAroostook, Penobscot, Piscataquis6 hr
Jun 24, 5:02 AM EDTFlash Flood WarningCARPiscataquis6 hr
Jun 24, 9:52 AM EDTAreal Flood AdvisoryCARAroostook, Penobscot, Washington4 hr
Jun 24, 10:42 AM EDTAreal Flood WarningCARAroostook, Penobscot, Piscataquis5 hr
Jun 24, 11:17 AM EDTAreal Flood WarningCARPiscataquis2 hr
Jun 24, 1:52 PM EDTFlash Flood WarningCARAroostook, Washington6 hr
Jun 24, 2:44 PM EDTAreal Flood AdvisoryCARAroostook3 hr
Jun 24, 4:23 PM EDTFlood WatchCARAroostook, Penobscot, Piscataquis, Washington3 days

Nearby

Flash Flood Warnings in Maine, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.