Alert archive / Arizona / Flash Flood Warnings in 1998

Flash Flood Warning 1, NWS Flagstaff, AZ

March 28, 1998Yavapai County, Arizona

NWS Flagstaff, AZ issued this flash flood warning at Mar 28, 1998, 11:47 PM MST for Yavapai County, Arizona. 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 counties it named.

The facts

Issued: Mar 28, 1998, 11:47 PM MST (06:47 UTC)
Expired: Mar 29, 1998, 2:45 AM MST
In force: 3 hr
Issued by: NWS Flagstaff, AZ
Area: Whole counties

County Yavapai County, AZ

The radar

The Flagstaff radar (KFSX), 124 km from the middle of the area, began a volume at 06:47 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 text

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

000 
TTAA00 KFLG 290647
FFWFLG
AZC025-290945-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
1147 PM MST SAT MAR 28 1998

THE NATIONAL WEATHER SERVICE IN FLAGSTAFF AZ HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL 245 AM MST
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN CENTRAL ARIZONA

   ...SOUTHEASTERN AND SOUTH CENTRAL YAVAPAI COUNTY
 
AT 1145 PM MST THE AQUA FRIA RIVER WAS INDICATING RAPID INCREASE
IN FLOW IN SOUTHERN YAVPAI COUNTY. DEPARTMENT OF EMERGENCY
MANAGEMENT OFFICIALS IN YAVAPAI COUNTY REPORTED THAT HOMES ALONG
THE AQUA FRIA IN ROCK SPRINGS WERE BEING EVACUATED. THE AQUA FRIA
IS AT BANKFULL IN ROCK SPRINGS...AND ANY FURTHER INCREASE IN FLOW
WILL CAUSE FLOODING OF STRUCTURES.

MOVE TO HIGHER GROUND IF FLOOD WATERS THREATEN...
 
MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO
CROSS BRIDGES...DIPS...OR LOW SPOTS IF WATER COVERS THE ROADWAY.
NEVER TRY TO CROSS A FLOWING STREAM...EVEN A8 SMALL ONE...ON FOOT.

&

What forecasters said that day

The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Flagstaff, AZ wrote its last area forecast discussion before this flash flood warning went out at Mar 28, 8:35 PM MST, 3 hours 12 minutes earlier.

Area forecast discussion, Mar 28, 8:35 PM MST, 3 hours 12 minutes before

NORTHERN ARIZONA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
835 PM MST SAT MAR 28 1998

SYNOPSIS...A MAJOR EARLY SPRING SNOWSTORM WILL CONTINUE TO BRING
BLIZZARD LIKE CONDITIONS TO NORTHEASTERN ARIZONA TONIGHT. THE BULK OF
SNOW IS EXPECTED TONIGHT WITH STRONG SOUTHWEST WINDS GUSTING TO 35
MPH AT TIMES CAUSING CONSIDERABLE BLOWING AND DRIFTING OF SNOW. SNOW
LEVELS WILL PLUMMET 3000 FEET BY MORNING AS MUCH COLDER AIR MOVES
INTO THE REGION. SNOW WILL CONTINUE ON SUNDAY WITH ADDTIONAL SNOW
ACCUMULATION LIKELY.

DISCUSSION...SNOW CONTINUES TO FALL OVER THE RIM COUNTRY THIS EVENING
AS 5H TROUGH AND ASSOCIATED JET MAX CONTINUES TO DIG INTO THE SW US.
SAT IR IMAGERY...ALONG WITH 88D DATA INDICATE THAT ACTIVITY SHOULD
CONTINUE TONIGHT THROUGH MUCH OF THE CWA. HEAVIEST BANDS OF PRECIP
ARE ASSOCIATED WITH STRONG BAROCLINIC ZONE WHICH NOW MAKING ITS WAY
INTO EASTERN AZ. WITH THE ABUNDANCE OF MOISTURE IN PLACE...PRECIP
STILL DEVELOPING IN WAKE OF FRONT OVER WESTERN PORTIONS OF CWA...WITH
SNOW LEVELS NOW AS LOW AS 4000 FEET OVER WESTERN PORTIONS...WITH 5500
FOOT LEVELS IN EASTERN PORTIONS...EXPECT THEM TO CONTINUE TO DROP
TONIGHT AND CURRENT FCST HAS THIS COVERED WELL. WARNINGS SO FAR HAVE
WORKED OUT NICELY WITH SEVEN TO EIGHT INCHES ALREADY BEING REPORTED
IN MOST LOCATIONS ON THE RIM. WITH 88D CONTINUING TO INDICATE
REFLECTIVITY ENHANCEMENT OVER YAVAPAI COUNTY...AND STRONG SOUTHERLY
FLOW...AREAS ON RIM SHOULD LIKELY ACCUMULATE SNOW OVER CURRENT
FORECASTED AMOUNTS...SO ANOTHER ZONE UPDATE WILL BE FORTHCOMING.
00Z ETA INITIALIZED WELL OVER THE SW US...AND SHOWS ON JET STREAK
OVER CWA...AS ANOTHER STREAKS DOWN WEST COAST ON BACKSIDE OF TROUGH.
THIS STREAK TO ENHANCE DYNAMIC UPLIFT ONCE AGAIN FOR SUNDAY...AND
SHOULD FOCUS ENERGY FURTHER TO THE SOUTH AND EAST OVER THE EASTERN
RIM AND WHITE MOUNTAINS. BESIDES JUST A MINOR TWEAK HERE AND
THERE...CURRENT PACKAGE LOOKING GOOD.

FLG ++75 INW +552
FLG...WINTER STORM WARNING ABOVE 4000 FT TONIGHT THROUGH SUNDAY
      ZONES 4 6 7 8 9 11 14>18

Nearby

Flash Flood Warnings in Arizona, 1998 Every flash flood warning in 1998

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.