Alert archive / Arizona / Flash Flood Warnings in 2002
Flash Flood Warning 64, NWS Flagstaff, AZ
NWS Flagstaff, AZ issued this flash flood warning at Sep 18, 2002, 4:31 PM MST for Apache County, Gila County, Navajo County, Arizona. It was in force for 119 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Sep 18, 2002, 4:31 PM MST (23:31 UTC)
- Expired
- Sep 18, 2002, 6:30 PM MST
- In force
- 119 min
- Issued by
- NWS Flagstaff, AZ
- Area
- Counties, with a storm outline in the text
Counties Apache County, AZ, Gila County, AZ, Navajo County, AZ
The radar
The Flagstaff radar (KFSX), 121 km from the middle of the area, began a volume at 23:34 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, 11.5 hours before the alert went out and 208 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1200 m above ground
- 0-6 km bulk shear
- 52 kt
- 0-1 km storm-relative helicity
- 185 m²/s²
- 0-3 km storm-relative helicity
- 276 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 182335 FFWFGZ AZC001-007-017-190230- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE FLAGSTAFF AZ 431 PM MST WED SEP 18 2002 THE NATIONAL WEATHER SERVICE HAS ISSUED A * FLASH FLOOD WARNING FOR... EAST CENTRAL GILA COUNTY IN EAST CENTRAL ARIZONA SOUTHERN APACHE COUNTY IN NORTHEAST ARIZONA THIS INCLUDES THE CITIES OF...ALPINE...GREER...HUNT...CONCHO...ST. JOHNS SOUTHERN NAVAJO COUNTY IN NORTHEAST ARIZONA THIS INCLUDES THE CITIES OF...WHITERIVER...SHOW LOW... HEBER-OVERGAARD...SNOWFLAKE * UNTIL 730 PM MST * AT 431 PM MST...WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY RAIN CONTINUED IN SOUTHER NAVAJO..SOUTHERN APACHE...AND NORTHERN GILA COUNTIES...THUS THE FLASH FLOOD WARNING FOR THIS AREA HAS BEEN EXTENDED UNTIL 730 PM MST. GAUGE DATA INDICATES STREAMS CONTINUE TO RISE OR REMAIN HIGH IN THIS AREA. IN ADDITION...RECENT HEAVY RAINFALL HAS RESULTED IN SATURATED SOIL SO THAT EVEN SMALL AMOUNTS OF RAIN CAN PRODUCE RAPID RISES IN STREAMS AND WASHES. A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING. IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY. TO REPORT SEVERE WEATHER OR FLOODING HAVE THE NEAREST LAW ENFORCEMENT AGENCY RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE. LAT...LON 3364 11073 3360 10905 3462 10909 3459 11072
The office that day
Everything else NWS Flagstaff, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 18, 11:04 AM MST | Flash Flood Warning | FGZ | Apache, Navajo | 116 min |
| Sep 18, 11:05 AM MST | Flash Flood Warning | FGZ | Apache, Navajo | 3 hr |
| Sep 18, 11:30 AM MST | Flash Flood Warning | FGZ | Apache, Navajo | 3 hr |
| Sep 18, 11:30 AM MST | Flash Flood Warning | FGZ | Apache, Navajo | 2 hr |
| Sep 18, 11:45 AM MST | Flash Flood Warning | FGZ | Apache, Navajo | 2 hr |
| Sep 18, 11:46 AM MST | Flash Flood Warning | FGZ | Apache, Navajo | 3 hr |
| Sep 18, 4:35 PM MST | Flash Flood Warning | FGZ | Apache, Gila, Navajo | 3 hr |
Nearby
Flash Flood Warnings in Arizona, 2002Every flash flood warning in 2002
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.