Alert archive / Montana / Flash Flood Warnings in 2005

Flash Flood Warning 2, NWS Great Falls, MT

June 27, 2005Judith Basin County, Montana

NWS Great Falls, MT issued this flash flood warning at Jun 27, 2005, 3:54 PM MDT for Judith Basin County, Montana. 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 27, 2005, 3:54 PM MDT (21:54 UTC)
Expired
Jun 27, 2005, 7:00 PM MDT
In force
3 hr
Issued by
NWS Great Falls, MT
Area
Counties, with a storm outline in the text

County Judith Basin County, MT

The radar

The Great Falls radar (KTFX), 87 km from the middle of the area, began a volume at 21:57 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

Great_falls, MT (KTFX), launched 12:00Z, 9.9 hours before the alert went out and 38 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, Great_falls, MT at 12:00Z on 2005-06-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 7 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, Great_falls, MT at 12:00Z on 2005-06-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -5 square meters per square second.1939Sfc1 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
7 J/kg
Mixed-layer CIN
-28 J/kg
Mixed-layer LCL
714 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
-5 m²/s²
0-3 km storm-relative helicity
30 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.

000 
WGUS55 KTFX 272200
FFWTFX
MTC045-280100-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE GREAT FALLS MT
354 PM MDT MON JUN 27 2005

THE NATIONAL WEATHER SERVICE IN GREAT FALLS HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CENTRAL JUDITH BASIN COUNTY IN CENTRAL MONTANA

* UNTIL 700 PM MDT

* AT 354 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  VERY HEAVY RAIN FROM A SLOW MOVING THUNDERSTORM OVER CENTRAL
  JUDITH BASIN COUNTY.

* THE THUNDERSTORM WILL GENERALLY REMAIN OVER RURAL AREAS OF CENTRAL
  JUDITH BASIN COUNTY.

THIS INCLUDES HIGHWAY 200 BETWEEN MILE MARKERS 29 AND 34.

ESTIMATED RAINFALL AMOUNTS OF BETWEEN 1.00 AND 1.50 INCHES HAVE 
ALREADY FALLEN OVER THE WARNED AREA. HEAVIEST RAINFALL AMOUNTS HAVE 
BEEN IN THE VICINITY OF MEADOW CREEK... WOLF CREEK AND COYOTE CREEK.

A FLASH FLOOD WARNING MEANS THAT FLASH FLOODING IS IMMINENT OR
OCCURRING. IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND
IMMEDIATELY. RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE
IMMEDIATE PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO
CROSS SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. AS LITTLE AS 6 INCHES OF WATER MAY CAUSE YOU TO LOSE CONTROL
OF YOUR VEHICLE. TWO FEET OF MOVING WATER CAN CARRY AWAY MOST
VEHICLES INCLUDING SPORT UTILITY VEHICLES AND PICKUP TRUCKS. MOVE TO
HIGHER GROUND.

LAT...LON 4709 11042 4721 11015 4727 11013 4725 11028
      4714 11046

$$

LOSS

The office that day

Everything else NWS Great Falls, MT issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 27, 3:04 PM MDTSevere Thunderstorm WarningTFXLewis and Clark41 min
Jun 27, 3:40 PM MDTSevere Thunderstorm WarningTFXLewis and Clark52 min
Jun 27, 5:03 PM MDTSevere Thunderstorm WarningTFXCascade, Meagher61 min
Jun 27, 5:33 PM MDTSevere Thunderstorm WarningTFXBlaine57 min
Jun 27, 5:43 PM MDTSevere Thunderstorm WarningTFXChouteau, Judith Basin47 min
Jun 27, 5:56 PM MDTFlash Flood WarningTFXBlaine3 hr

Nearby

Flash Flood Warnings in Montana, 2005Every flash flood warning in 2005

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.