Alert archive / Arizona / Flash Flood Warnings in 2001

Flash Flood Warning 38, NWS Tucson, AZ

August 17, 2001Pima County, Arizona

NWS Tucson, AZ issued this flash flood warning at Aug 17, 2001, 1:15 AM MST for Pima County, Arizona. It was in force for 30 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: Aug 17, 2001, 1:15 AM MST (08:15 UTC)
Expired: Aug 17, 2001, 1:45 AM MST
In force: 30 min
Issued by: NWS Tucson, AZ
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Pima County, AZ

The radar

The Yuma radar (KYUX), 155 km from the middle of the area, began a volume at 08:19 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 
WGUS55 KTWC 170819
FFWTUS
AZC019-170945-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TUCSON AZ
115 AM MST FRI AUG 17 2001

THE NATIONAL WEATHER SERVICE IN TUCSON HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  WESTERN PIMA COUNTY IN ARIZONA

* UNTIL 245 AM MST

* AT 103 AM MST...WEATHER SERVICE DOPPLER RADAR INDICATED TWO LINES
  OF THUNDERSTORMS PRODUCING HEAVY RAIN FROM SOUTHEAST PINAL COUNTY  
  TO WESTERN PIMA COUNTY. THESE LINES OF STORMS WILL MOVE ACROSS 
  WESTERN PIMA COUNTY NEAR STATE HIGHWAY 85 WHICH RECEIVED HEAVY RAINFALL
  EARLIER TONIGHT. THIS WARNING REPLACES THE SMALL STREAM FLOOD      
  ADVISORY FOR THIS AREA.    

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
DO NOT ATTEMPT TO CROSS SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN
DEPTH BY FOOT OR BY AUTOMOBILE.

LAT...LON 3204 11334 3185 11267 3250 11250 3253 11336

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 16, 7:02 PM MST	Severe Thunderstorm Warning	TWC	Cochise	28 min
Aug 16, 7:29 PM MST	Severe Thunderstorm Warning	TWC	Cochise, Pima	31 min
Aug 16, 9:16 PM MST	Severe Thunderstorm Warning	TWC	Pinal	29 min
Aug 16, 10:03 PM MST	Severe Thunderstorm Warning	TWC	Pinal	57 min

Nearby

Flash Flood Warnings in Arizona, 2001 Every 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; radar from the NEXRAD Level II archive.