Alert archive / Alaska / Flash Flood Warnings in 2005

Flash Flood Warning 2, NWS Anchorage, AK

June 29, 2005

NWS Anchorage, AK issued this flash flood warning at Jun 29, 2005, 9:01 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, 9:01 PM AKDT (05:01 UTC)
Expired: Jun 30, 2005, 4:00 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

Anchorage Iap/Pt. Campbe, (PANC), launched 00:00Z, 5.0 hours before the alert went out and 166 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 19 J/kg
Mixed-layer CIN: -105 J/kg
Mixed-layer LCL: 1186 m above ground
0-6 km bulk shear: 13 kt
0-1 km storm-relative helicity: -45 m²/s²
0-3 km storm-relative helicity: 13 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 301002
FFWAFC
AKZ145-301100-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ANCHORAGE AK
201 AM ADT THU JUN 30 2005

THE NATIONAL WEATHER SERVICE IN ANCHORAGE HAS ISSUED A

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

* UNTIL 300 AM ADT

* AT 154 AM ADT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  FLASH FLOODING FROM A THUNDERSTORM 45 MILES NORTHWEST OF TRAPPER
  CREEK...OR ABOUT 89 MILES NORTHWEST OF HOUSTON...MOVING NORTHWEST
  AT 5 MPH.

* THE THUNDERSTORM PRODUCING FLASH FLOODING WILL BE NEAR...
  RURAL SUSITNA VALLEY  AT 220 AM ADT

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

A FLASH FLOOD WARNING MEANS THAT 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.

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

LAT...LON 6274 15194 6218 15162 6216 15031 6290 15042

$$

RNW

The office that day

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

Issued	Product	Office	Lasted
Jun 29, 5:25 PM AKDT	Severe Thunderstorm Warning	AFC	35 min
Jun 29, 5:58 PM AKDT	Severe Thunderstorm Warning	AFC	32 min
Jun 29, 6:24 PM AKDT	Flash Flood Warning	AFC	19 hr
Jun 29, 6:25 PM AKDT	Severe Thunderstorm Warning	AFC	33 min
Jun 29, 7:14 PM AKDT	Severe Thunderstorm Warning	AFC	29 min
Jun 29, 9:17 PM AKDT	Severe Thunderstorm Warning	AFC	28 min
Jun 29, 9:31 PM AKDT	Severe Thunderstorm Warning	AFC	44 min
Jun 29, 10:24 PM AKDT	Flash Flood Warning	AFC	20 hr
Jun 29, 11:00 PM AKDT	Small Craft Advisory	AFC	12 hr
Jun 30, 11:00 AM AKDT	Small Craft Advisory	AFC	24 hr

Nearby

Flash Flood Warnings in Alaska, 2005 Every 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.