Alert archive / Arizona / Flash Flood Warnings in 2001
Flash Flood Warning 3, NWS Flagstaff, AZ
NWS Flagstaff, AZ issued this flash flood warning at Jul 8, 2001, 3:27 PM MST for Coconino County, Arizona. It was in force for 33 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.
The facts
- Issued
- Jul 8, 2001, 3:27 PM MST (22:27 UTC)
- Expired
- Jul 8, 2001, 4:00 PM MST
- In force
- 33 min
- Issued by
- NWS Flagstaff, AZ
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Coconino County, AZ
The radar
The Cedar City radar (KICX), 169 km from the middle of the area, began a volume at 22:29 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
Flgstf/Belemont, AZ (KFGZ), launched 12:00Z, 10.5 hours before the alert went out and 164 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.
- Mixed-layer CAPE
- 104 J/kg
- Mixed-layer CIN
- -81 J/kg
- Mixed-layer LCL
- 1219 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- -30 m²/s²
- 0-3 km storm-relative helicity
- 11 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WGUS55 KFGZ 082228 FFWFGZ AZC005-090000- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE FLAGSTAFF AZ 327 PM MST SUN JUL 8 2001 THE NATIONAL WEATHER SERVICE HAS ISSUED A * FLASH FLOOD WARNING FOR... NORTH CENTRAL COCONINO COUNTY IN ARIZONA * UNTIL 500 PM MST * AT 325 PM MST...WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY RAIN 25 MILE SOUTHEAST OF PAGE...MOVING NORTHWEST AT 30 MPH. * THE THUNDERSTORM WITH EXCESSIVE RAINFALL WILL PASS CLOSE TO... ANTELOPE CANYON BY 400 PM MST... EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLASH FLOODING OF CREEKS AND CANYONS...ROADS AND ROADSIDE CULVERTS. THE HEAVY RAINS COULD ALSO TRIGGER ROCK AND MUDSLIDES IN STEEP TERRAIN. A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT. IT IS IMPORTANT TO KNOW WHERE YOU ARE RELATIVE TO STREAMS...RIVERS...OR CREEKS WHICH CAN BECOME KILLERS IN HEAVY RAINS. HIKERS SHOULD AVOID AREAS IN CANYONS OR CREEKS DURING THREATENING RAINS. A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING. IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY. DO NOT ATTEMPT TO CROSS SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY AUTOMOBILE. IF YOUR VEHICLE STALLS, ABANDON IT IMMEDIATELY AND SEEK HIGHER GROUND. TO REPORT SEVERE WEATHER HAVE THE NEAREST LAW ENFORCEMENT AGENCY RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE. LAT...LON 3650 11142 3657 11111 3694 11127 3678 11154
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 Jul 8, 2:20 PM MST, 1 hour 7 minutes earlier.
Area forecast discussion, Jul 8, 2:20 PM MST, 1 hour 7 minutes before
NORTHERN ARIZONA FORECAST DISCUSSION NATIONAL WEATHER SERVICE FLAGSTAFF AZ 220 PM MST SUN JUL 08 2001 SYNOPSIS...SOUTHERLY FLOW WILL CONTINUE TO SPREAD MOISTURE ACROSS NORTHERN ARIZONA. EXPECT THE PATTERN OF MAINLY AFTERNOON SHOWERS AND THUNDERSTORMS TO CONTINUE OVER MUCH OF THE AREA INTO MIDWEEK. DISCUSSION...DEEP SOUTHERLY FLOW CONTS TO SPREAD MOISTURE OVER THE CWA THIS AFT. THUNDERSTORM DEVELOPMENT OVER NRN AZ HAS MAINLY BEEN IN ASSOCIATION WITH WK EASTERLY WAVE EMBEDDED IN FLOW MVG ACROSS THE EAST CENTRAL MTNS AT THIS TIME. THIS FEATURE TO CONT TO PUSH ACROSS THE CWA THE NEXT 12 HOURS OR SO. SECONDARY DEVELOPMENT IS NOW OCCURRING OVER NE AZ AS THERE ARE SEVERAL CONVERGING OUTFLOW BOUNDARIES THAT WERE NOTED ON VIS IMAGERY. WILL KEEP MENTION OF FAIRLY WIDESPREAD ACTIVITY ACROSS THE RIM ZONES...AND AREAS TO THE NORTH FOR TONIGHT. OTHERWISE DIURNAL CYCLE OF SHOWER DEVELOPMENT TO BE EXPECTED AGAIN ON MONDAY...WITH POSSIBLE AN UPSWING IN ACTIVITY ON TUESDAY AS ANOTHER FEATURE PROGGED TO MOVE ACROSS. IN THE EXTENDED...AVN-MRF SOLUTION STARTS TO BREAK DOWN THE PATTERN THAT WE HAVE BEEN IN BY DAY 5. FLOW TO BECOME A BIT MORE SWRLY DAY 5 THROUGH 7...WHICH COULD LEAD TO SOME DRYING OF THE ATMOSPHERE. MCGRATH .FGZ...NONE.
In the hours before
Special weather statement, Jul 8, 9:30 AM MST, 5 hours 57 minutes before
AZZ004>018-037>040-081930- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE FLAGSTAFF AZ 930 AM MST SUN JUL 08 2001 ...SCATTERED THUNDERSTORMS...SOME WITH HEAVY DOWNPOURS...ACROSS NORTHERN ARIZONA TODAY... A DEEP PLUME OF MONSOON MOISTURE WITH DEEP SOUTHERLY FLOW WILL REMAIN ACROSS NORTHERN ARIZONA TODAY. THE ATMOSPHERE OVER NORTHERN ARIZONA HAS DESTABILIZED SLIGHTLY OVER THE PAST 24 HOURS. AS A RESULT...MORE THUNDERSTORM ACTIVITY CAN BE EXPECTED TODAY. THE STRONGEST THUNDERSTORMS IN NORTHERN ARIZONA WILL DEVELOP ACROSS THE EASTERN AND CENTRAL MOUNTAINS...AS A WEAK DISTURBANCE MOVES ACROSS THE AREA LATER TODAY. DUE TO THE ABUNDANT MOISTURE...SOME OF THESE STORMS WILL BE CAPABLE OF PRODUCING HEAVY DOWNPOURS...ALONG WITH SMALL HAIL. EXPECT STREAMS AND WASHES IN THE VICINITY OF THESE STORMS THAT ARE NORMALLY DRY TO FLOW WITH WATER. SPOTTER REPORTS OF EXCESSIVE RAINFALL AMOUNTS AND SEVERE WEATHER SHOULD BE RELAYED TO THE NATIONAL WEATHER SERVICE. $$ MCGRATH
Local storm report, Jul 8, 2:02 PM MST, 1 hour 25 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE FLAGSTAFF ARIZONA
0202 PM MST SUN JUL 8 2001
TIME (MST) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION...K.
1227 PM METEOR CRATER AZ 60 MPH TSTM GUST
07/08/01 COCONINO REPORTED BY NWS SPOTTERThe office that day
Everything else NWS Flagstaff, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 8, 12:11 PM MST | Severe Thunderstorm Warning | FGZ | Coconino | 34 min |
| Jul 8, 12:47 PM MST | Severe Thunderstorm Warning | FGZ | Coconino | 38 min |
Nearby
Flash Flood Warnings in Arizona, 2001Every flash flood warning in 2001
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.