Alert archive / Alaska / Flash Flood Warnings in 2005

Flash Flood Warning 1, NWS Anchorage, AK

June 29, 2005

NWS Anchorage, AK issued this flash flood warning at Jun 29, 2005, 6:24 PM AKDT. It was in force for 19 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 29, 2005, 6:24 PM AKDT (02:24 UTC)
Expired
Jun 30, 2005, 1:15 PM AKDT
In force
19 hr
Issued by
NWS Anchorage, AK
Area
Counties, with a storm outline in the text

The nearest sounding before it

Mcgrath, (PMCG), launched 00:00Z, 2.4 hours before the alert went out and 186 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, Mcgrath, at 00:00Z on 2005-06-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 34 joules per kilogram.LCLLFCEL10008507005003002001001 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, Mcgrath, at 00:00Z on 2005-06-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 24 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
34 J/kg
Mixed-layer CIN
-123 J/kg
Mixed-layer LCL
2268 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
24 m²/s²
0-3 km storm-relative helicity
45 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 
WGAK58 PAFC 300725
FFWAFC
AKZ151-300815-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ANCHORAGE AK
1124 PM ADT WED JUN 29 2005

THE NATIONAL WEATHER SERVICE IN ANCHORAGE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  KUSKOKWIM VALLEY AREA OF ALASKA

* UNTIL 1215 AM ADT

* AT 1116 PM ADT...FLASH FLOODING WAS INDICATED ON RADAR AND 
SATELLITE FROM A THUNDERSTORM 17 MILES SOUTHWEST OF SLEETMUTE...OR 
ABOUT 67 MILES EAST OF ANIAK...  MOVING NORTHEAST AT 5 MPH.

* THE THUNDERSTORM PRODUCING FLASH FLOODING WILL BE NEAR... 
 RED DEVIL AND SLEETMUTE BY 1130 PM ADT

ADDITIONAL RAINFALL AMOUNTS OF 3 INCHES ARE POSSIBLE IN THE WARNED 
AREA.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL 
CREEKS AND STREAMS...COUNTRY ROADS ALONG THE BANKS OF CREEKS AND 
STREAMS.

FLOODING IS OCCURRING OR IS IMMINENT. IT IS IMPORTANT TO KNOW WHERE
YOU ARE RELATIVE TO STREAMS...RIVERS...OR CREEKS WHICH CAN BECOME
KILLERS IN HEAVY RAINS. CAMPERS AND HIKERS SHOULD AVOID STREAMS OR
CREEKS.

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

LAT...LON 6098 15606 6286 15635 6188 15892 6063 15852

$$

RNW

The office that day

Everything else NWS Anchorage, AK issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 29, 5:25 PM AKDTSevere Thunderstorm WarningAFC35 min
Jun 29, 5:58 PM AKDTSevere Thunderstorm WarningAFC32 min
Jun 29, 6:25 PM AKDTSevere Thunderstorm WarningAFC33 min
Jun 29, 7:14 PM AKDTSevere Thunderstorm WarningAFC29 min
Jun 29, 9:01 PM AKDTFlash Flood WarningAFC19 hr
Jun 29, 9:17 PM AKDTSevere Thunderstorm WarningAFC28 min
Jun 29, 9:31 PM AKDTSevere Thunderstorm WarningAFC44 min
Jun 29, 10:24 PM AKDTFlash Flood WarningAFC20 hr
Jun 29, 11:00 PM AKDTSmall Craft AdvisoryAFC12 hr
Jun 30, 11:00 AM AKDTSmall Craft AdvisoryAFC24 hr

Nearby

Flash Flood Warnings in Alaska, 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.