Alert archive / Arizona / Flash Flood Watches in 2010

Flash Flood Watch 2, NWS Phoenix, AZ

March 7, 2010

NWS Phoenix, AZ issued this flash flood watch at Mar 7, 2010, 8:44 AM MST. It was in force for 8 hr.

The area

The counties it named.

The facts

Issued
Mar 7, 2010, 8:44 AM MST (15:44 UTC)
Expired
Mar 7, 2010, 5:00 PM MST
In force
8 hr
Issued by
NWS Phoenix, AZ
Flood severity
None

What forecasters said that day

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

NWS Phoenix, AZ wrote its last area forecast discussion before this flash flood watch went out at Mar 7, 6:30 AM MST, 2 hours 14 minutes earlier.

Area forecast discussion, Mar 7, 6:30 AM MST, 2 hours 14 minutes before
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Hazardous weather outlook, Mar 7, 5:27 AM MST, 3 hours 17 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE PHOENIX AZ
527 AM MST SUN MAR 7 2010

AZZ024-081300-
SOUTHERN GILA COUNTY/TONTO NATIONAL FOREST FOOTHILLS-
527 AM MST SUN MAR 7 2010

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EAST-CENTRAL
ARIZONA.

.DAY ONE...TODAY AND TONIGHT

A WET PACIFIC LOW PRESSURE SYSTEM WILL PUSH SLOWLY EAST ACROSS
SOUTHERN GILA COUNTY TODAY AND TONIGHT. SHOWERS...SOME MODERATE TO
HEAVY...ARE EXPECTED...ESPECIALLY DURING THE AFTERNOON AND EVENING
HOURS. RAINFALL WILL LIKELY BE SUFFICIENT TO CAUSE LOCAL FLOODING OF
AREA ROADS...STREAMS AND WASHES. THERE WILL ALSO BE A CHANCE FOR
THUNDERSTORMS...WHICH COULD PRODUCE BRIEF HEAVY RAIN AS WELL AS
DEADLY CLOUD TO GROUND LIGHTNING.

A WINTER WEATHER ADVISORY IS IN EFFECT AFTER 11 PM TONIGHT FOR
SNOWFALL AT AND ABOVE 5000 FEET. SEE THE WINTER WEATHER ADVISORY
PRODUCT...PHXWSWPSR...FOR ADDITIONAL INFORMATION.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MONDAY
MORNING FOR ELEVATIONS AT AND ABOVE 5000 FEET. OTHERWISE SCATTERED
RAIN AND SNOW SHOWERS WILL CONTINUE INTO THE AFTERNOON MONDAY. RUNOFF
FROM THE RAINFALL MAY LEAD TO FLOODING OF ROADS...STREAMS AND WASHES.
ANOTHER FAST MOVING BUT WEAKER WEATHER SYSTEM TUESDAY INTO TUESDAY
NIGHT WILL LEAD TO ANOTHER CHANCE FOR RAIN AND HIGHER ELEVATION SNOW
SHOWERS.

DRIER WEATHER IS EXPECTED THURSDAY THROUGH SATURDAY...AND NO WEATHER
HAZARDS ARE ANTICIPATED OVER THIS TIME PERIOD.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

AZZ022-023-027-028-081300-
NORTHWEST MARICOPA COUNTY-GREATER PHOENIX AREA-
SOUTHWEST MARICOPA COUNTY-NORTHWEST AND NORTH CENTRAL PINAL COUNTY-
527 AM MST SUN MAR 7 2010

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTH-CENTRAL
ARIZONA.

.DAY ONE...TODAY AND TONIGHT

A WET PACIFIC LOW PRESSURE SYSTEM WILL MOVE SLOWLY EAST AND ACROSS
SOUTH CENTRAL ARIZONA TODAY AND TONIGHT. SHOWERS...SOME MODERATE IN
INTENSITY...WILL ACCOMPANY THIS SYSTEM. THERE WILL ALSO BE A CHANCE
FOR THUNDERSTORMS...ESPECIALLY DURING THE AFTERNOON AND EVENING
HOURS. STORMS MAY PRODUCE BRIEF HEAVY RAINFALL...SMALL HAIL...AND DEADLY
CLOUD TO GROUND LIGHTNING.

RAINFALL WILL LIKELY BE SUFFICIENT TO CAUSE LOCAL FLOODING OF AREA
ROADS...STREAMS AND WASHES. MOTORISTS ACROSS SOUTH-CENTRAL ARIZONA
INCLUDING THE GREATER PHOENIX AREA SHOULD DRIVE WITH CAUTION TODAY
AND TONIGHT AND AVOID DRIVING ACROSS WATER COVERED ROADS OR WASHES.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

A SECOND FAST MOVING BUT WEAKER PACIFIC WEATHER SYSTEM WILL PUSH
EAST ACROSS THE AREA TUESDAY INTO TUESDAY NIGHT...LEADING TO ANOTHER
CHANCE FOR SHOWERS. RAINFALL WILL BE LESS INTENSE WITH THIS SYSTEM
AND MOST LIKELY NOT SUFFICIENT TO CAUSE ANY FLOODING. DRIER
CONDITIONS WILL RETURN WEDNESDAY THROUGH SATURDAY AND NO WEATHER
HAZARDS ARE EXPECTED DURING THIS TIME PERIOD.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

AZZ020-021-025-026-CAZ030>033-081300-
LOWER COLORADO RIVER VALLEY AZ-WEST CENTRAL DESERTS-
YUMA/MARTINEZ LAKE AND VICINITY-SOUTHWEST DESERTS-
JOSHUA TREE NATIONAL PARK-LOWER COLORADO RIVER VALLEY CA-
RIVERSIDE COUNTY/EASTERN DESERTS-IMPERIAL COUNTY-
527 AM MST SUN MAR 7 2010 /427 AM PST SUN MAR 7 2010/

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EXTREME SOUTHWEST
ARIZONA...EXTREME WEST-CENTRAL ARIZONA...SOUTHWEST ARIZONA...WEST-
CENTRAL ARIZONA...EXTREME SOUTHEAST CALIFORNIA AND SOUTHEAST
CALIFORNIA.

.DAY ONE...TODAY AND TONIGHT

A WET PACIFIC LOW PRESSURE SYSTEM WILL MOVE SLOWLY EAST ACROSS
SOUTHEASTERN CALIFORNIA AND SOUTHWEST ARIZONA TODAY INTO
TONIGHT. SHOWERS...SOME MODERATE IN INTENSITY...WILL ACCOMPANY THE
SYSTEM. THERE WILL ALSO BE A CHANCE FOR THUNDERSTORMS...ESPECIALLY
THIS AFTERNOON. THUNDERSTORMS MAY PRODUCE DEADLY CLOUD TO GROUND
LIGHTNING AS WELL AS SMALL HAIL AND BRIEF HEAVY RAINFALL. THE MOST
SIGNIFICANT SHOWERS WILL LIKELY OCCUR THIS MORNING AND EARLY
AFTERNOON...AND THEY MAY LEAD TO LOCAL FLOODING OF AREA
ROADS...WASHES AND STREAMS. RAINFALL WILL GRADUALLY DECREASE IN
COVERAGE AND INTENSITY TONIGHT.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

ANOTHER FAST MOVING AND WEAKER PACIFIC WEATHER SYSTEM WILL MOVE EAST
ACROSS THE AREA TUESDAY...LEADING TO ANOTHER THREAT FOR SHOWERS.
HOWEVER MUCH LESS RAINFALL IS EXPECTED WITH THIS SYSTEM...AND NO
FLOODING ISSUES ARE ANTICIPATED AT THIS TIME. DRIER WEATHER WILL
RETURN WEDNESDAY THROUGH SATURDAY AND NO WEATHER HAZARDS ARE EXPECTED
DURING THIS TIME PERIOD.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

NATIONAL WEATHER SERVICE PHOENIX IS ON THE INTERNET AT

WEATHER.GOV/PHOENIX

BRECKENRIDGE

The office that day

Everything else NWS Phoenix, AZ issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 7, 3:49 AM MSTWinter Weather AdvisoryPSR31 hr
Mar 7, 8:08 AM MSTAreal Flood AdvisoryPSRLa Paz, Yuma3 hr
Mar 7, 10:59 AM MSTFlash Flood WarningPSRLa Paz, Yuma2 hr
Mar 7, 11:58 AM MSTAreal Flood AdvisoryPSRMaricopa107 min
Mar 7, 11:16 AM MSTAreal Flood AdvisoryPSRImperial104 min
Mar 7, 1:21 PM MSTAreal Flood AdvisoryPSRImperial3 hr
Mar 7, 4:37 PM MSTWinter Weather AdvisoryPSR6 hr

Nearby

Flash Flood Watches in Arizona, 2010Flash Flood Watches in California, 2010Every flash flood watch in 2010

Sources

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