Alert archive / Arizona / Flash Flood Warnings in 2009
Flash Flood Warning 1, NWS Tucson, AZ
NWS Tucson, AZ issued this flash flood warning at Jun 25, 2009, 1:29 PM MST for Cochise County, Arizona. It was in force for 91 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
- Jun 25, 2009, 1:29 PM MST (20:29 UTC)
- Expired
- Jun 25, 2009, 3:00 PM MST
- In force
- 91 min
- Issued by
- NWS Tucson, AZ
- Area
- Storm-based polygon
- Flood severity
- None
County Cochise County, AZ
The radar
The Tucson radar (KEMX), 134 km from the middle of the area, began a volume at 20:29 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.
Did it verify
Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this flash flood warning while it was in force. That is not proof nothing happened: reports are thin where few people live.
Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.
The nearest sounding before it
Tuscon, AZ (KTUS), launched 12:00Z, 8.5 hours before the alert went out and 151 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
- 2889 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 70 m²/s²
- 0-3 km storm-relative helicity
- 123 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 KTWC 252029 FFWTWC AZC003-252200- /O.NEW.KTWC.FF.W.0001.090625T2029Z-090625T2200Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE TUCSON AZ 129 PM MST THU JUN 25 2009 THE NATIONAL WEATHER SERVICE IN TUCSON HAS ISSUED A * FLASH FLOOD WARNING FOR... NORTHEASTERN COCHISE COUNTY IN SOUTHEAST ARIZONA... * UNTIL 300 PM MST * AT 126 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY RAIN FROM SEVERAL THUNDERSTORMS NEAR SAN SIMON. RADAR INDICATED THAT BETWEEN TWO TO THREE INCHES OF RAIN MAY HAVE FALLEN IN THIS WARNED AREA IN THE PAST HOUR. * THE STORM PRODUCING FLASH FLOODING WILL OTHERWISE REMAIN OVER MAINLY RURAL AREAS OF THE INDICATED COUNTY. PRECAUTIONARY/PREPAREDNESS ACTIONS... EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF WASHES AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE BANKS OF CREEKS AND STREAMS. A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING. IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY. RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY AUTOMOBILE. && LAT...LON 3242 10944 3242 10911 3219 10913 3221 10943 $$ JRG
2 follow-up statements
000 WGUS75 KTWC 252109 FFSTWC FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE TUCSON AZ 209 PM MST THU JUN 25 2009 AZC003-252200- /O.CON.KTWC.FF.W.0001.000000T0000Z-090625T2200Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ COCHISE AZ- 209 PM MST THU JUN 25 2009 ...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 300 PM MST FOR NORTHEASTERN COCHISE COUNTY... AT 205 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE RAINFALL RATES BETWEEN 2 TO 3 INCHES PER HOUR OVER THE WARNING AREA. GIVEN THE AMOUNT OF RAINFALL THIS AREA HAS ALREADY SEEN SINCE THE ISSUANCE OF THIS WARNING...THE RISK OF FLASH FLOODING CONTINUES FOR NORTHEASTERN PORTIONS OF COCHISE COUNTY. THIS STORM WITH EXCESSIVE RAIN IS EXPECTED TO REMAIN OVER MAINLY RURAL AREAS OF THE INDICATED COUNTY. PRECAUTIONARY/PREPAREDNESS ACTIONS... EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE BANKS OF CREEKS AND STREAMS. DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. MOVE TO HIGHER GROUND. && LAT...LON 3242 10944 3242 10911 3219 10913 3221 10943 $$ SMR
000 WGUS75 KTWC 252153 FFSTWC FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE TUCSON AZ 253 PM MST THU JUN 25 2009 AZC003-252201- /O.EXP.KTWC.FF.W.0001.000000T0000Z-090625T2200Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ COCHISE AZ- 253 PM MST THU JUN 25 2009 ...THE FLASH FLOOD WARNING WILL EXPIRE AT 300 PM MST FOR NORTHEASTERN COCHISE COUNTY... AT 245 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR HAD INDICATED THAT RAINFALL RATES OVER THE WARNED AREA HAD FALLEN TO LESS THAN HALF AN INCH PER HOUR. SINCE THE RATE OF RAINFALL OVER THE AREA HAS FALLEN SO DRASTICALLY...THE THREAT OF FLASH FLOODING OVER THE AREA HAS DIMINISHED. THUS...THE FLASH FLOOD WARNING WILL BE ALLOWED TO EXPIRE. LAT...LON 3242 10944 3242 10911 3219 10913 3221 10943 $$ SMR
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 Tucson, AZ wrote its last area forecast discussion before this flash flood warning went out at Jun 25, 9:22 AM MST, 4 hours 7 minutes earlier.
Area forecast discussion, Jun 25, 9:22 AM MST, 4 hours 7 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE TUCSON AZ 922 AM MST THU JUNE 25 2009 .SYNOPSIS...SOUTHERLY FLOW AROUND HIGH PRESSURE EAST OF THE AREA WILL CONTINUE TO INCREASE MOISTURE ACROSS SOUTHEAST ARIZONA. EXPECT SCATTERED AFTERNOON AND EVENING SHOWERS AND THUNDERSTORMS TODAY AND INTO THE WEEKEND. && .DISCUSSION...CONSIDERABLE CLOUDINESS ACROSS THE AREA THIS MORNING WITH AREAS OF VERY LIGHT SHOWERS/SPRINKLES/VIRGA. SATELLITE IMAGERY DOES SHOW BACK EDGE OF THIS CLOUD COVER OVER NEW MEXICO BOOT INTO FAR SOUTHEAST COCHISE. COULD THIS BE THE FIRST AREA TO SEE STORMS? MOIST SOUTHERLY FLOW CONTINUES BETWEEN UPPER HIGH CENTERED IN WESTERN KANSAS AND AN UPPER LOW JUST WEST OF LOS ANGELES. ADDITIONALLY WATER VAPOR IMAGERY DEPICTED A SUB-TROPICAL UPPER LEVEL LOW OVER THE MEXICAN STATE OF CHIHUAHUA...CURRENTLY MOVING NW AROUND 15 MPH. THIS FEATURE HAD ITS ORIGINS IN THE WESTERN GULF OF MEXICO EARLIER THIS WEEK AND SPUN UP INTO ITS CURRENT STATE WEDNESDAY MORNING. MORNING TUCSON SOUNDING WAS SIGNIFICANTLY WETTER IN THE 600-400 MB LAYER...BUT STILL RATHER DRY BELOW 700 MBS WHILE THE STRONG INVERSIONS FROM WEDNESDAY HAVE WEAKENED. UPSTREAM...EL PASO AND CHIHUAHUA SOUNDINGS WERE MORE UNSTABLE. THE SUB-TROPICAL UPPER LOW OVER CHIHUAHUA MEXICO...CURRENTLY MOVING NW AROUND 15 MPH...WILL TURN TO THE NORTH LATER TODAY AND MOVE OVER SOUTHEAST ARIZONA THIS EVENING AS THE UPPER LOW APPROACHING LA BASIN CONTINUES TO LIFT NE. AS THE BACK EDGE OF THIS CLOUD COVER MOVES WEST...SHOULD SEE SOME THUNDERSTORMS DEVELOP AS HEATING TAKES PLACE. AS OF 9AM...ONE SUCH WEAK THUNDERSTORM DEVELOPED BETWEEN TOMBSTONE AND BISBEE. EVEN WITH THE CLOUD COVER...STILL THINK THAT THE FORECAST LOOKS OK WITH ISOLATED TO SCATTERED SHOWERS AND THUNDERSTORMS. DUE TO THE CLOUD COVER...TEMPERATURES A DIFFERENT STORY AND WILL HAVE TO WATCH TRENDS THIS MORNING. HOWEVER WE DID STARTED THE DAY VERY WARM. AGAIN WILL MONITOR. && .AVIATION...MAINLY BKN MID AND HIGH LEVEL CLOUDS WILL CONTINUE THROUGH THE MORNING HOURS. INCREASED LOWER LEVEL MOISTURE WILL RESULT IN A RISK FOR ISOLATED TO SCATTERED SHOWERS AND THUNDERSTORMS THROUGHOUT SOUTHEAST ARIZONA AFTER 19Z AND SCT-BKN LOW LEVEL CLOUDS. THESE SHOWERS AND THUNDERSTORMS WILL BE CAPABLE OF GUSTY/ERRATIC OUTFLOW WINDS THIS AFTERNOON AND EVENING. LOWER LEVEL CLOUDS WILL BREAK UP SOME AFTER 25/06Z TONIGHT...BUT WILL NOT DISSIPATE ENTIRELY. AVIATION DISCUSSION NOT UPDATED FOR TAF AMENDMENTS. && .FIRE WEATHER...MOISTURE WILL CONTINUE TO INCREASE ACROSS SOUTHEAST ARIZONA THE REST OF THE WEEK AS HIGH PRESSURE ALOFT BUILDS TOWARD THE AREA FROM THE PLAINS STATES. THE AMOUNT OF CLOUD COVER OVERHEAD ALONG WITH LOW PRESSURE CURRENTLY OVER NORTHERN MEXICO WILL IMPACT THE RISK FOR SHOWERS AND THUNDERSTORMS TODAY. GIVEN CURRENT RADAR AND SATELLITE TRENDS...EXPECTING THAT MOST SIGNIFICANT SHOWERS AND THUNDERSTORMS WILL BE DELAYED AT LEAST UNTIL MID AFTERNOON...IF THEY ARISE AT ALL...THOUGH AN ISOLATED SHOWER/THUNDERSTORM/SPRINKLE CANNOT BE RULED OUT JUST DUE TO THE AMOUNT OF MOISTURE IN THE ATMOSPHERE. STRONGER STORMS THAT DEVELOP THROUGH THE MID TO LATE AFTERNOON INTO THE EVENING WILL BE CAPABLE OF PRODUCING CLOUD TO GROUND LIGHTNING AND STRONG/GUSTY/ERRATIC OUTFLOW WINDS. SCATTERED SHOWERS AND THUNDERSTORMS WILL REMAIN IN THE FORECAST EACH AFTERNOON AND EVENING INTO THE WEEKEND AS THESE CONDITIONS LOOK TO REMAIN IN PLACE. && .TWC WATCHES/WARNINGS/ADVISORIES...NONE. WEATHER.GOV/TUCSON
Hazardous weather outlook, Jun 25, 11:03 AM MST, 2 hours 26 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE TUCSON AZ 1103 AM MST THU JUN 25 2009 AZZ030-035-260700- UPPER GILA RIVER VALLEY-COCHISE COUNTY- 1103 AM MST THU JUN 25 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST ARIZONA. .DAY ONE...TODAY AND TONIGHT THE EXTENSIVE CLOUD COVER OF THIS MORNING IS STARTING TO ERODE FROM EAST TO WEST. THIS HAD ALLOWED HEATING TO TAKE PLACE WHICH HAS LEAD TO ISOLATED SHOWERS AND THUNDERSTORMS. EXPECT AREAL COVERAGE TO INCREASE TO SCATTERED DURING THE AFTERNOON AND CONTINUING INTO THE EVENING. THE THREAT OF SEVERE WEATHER IS LOW THIS AFTERNOON BUT CANT RULE A VERY ISOLATED THUNDERSTORM THAT WILL PRODUCE WIND GUSTS UP TO 45 MPH. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY A CHANCE OF SHOWERS AND THUNDERSTORMS WILL CONTINUE FOR MAINLY THE AFTERNOON AND EVENING HOURS. MAIN THREAT FROM THESE STORMS WILL BE STRONG GUSTY WINDS...CLOUD-TO-GROUND LIGHTNING AND LOCALLY HEAVY RAIN. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. AZZ029-031>034-260700- SOUTHEAST PINAL COUNTY-WESTERN PIMA COUNTY-TOHONO OODHAM NATION- TUCSON METRO/MARANA/GREEN VALLEY-SANTA CRUZ COUNTY- 1103 AM MST THU JUN 25 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTH CENTRAL ARIZONA AND SOUTHEAST ARIZONA. .DAY ONE...TODAY AND TONIGHT EXTENSIVE CLOUD COVER WILL LIMIT THE THREAT OF SEVERE WEATHER TODAY. SOME BREAKS IN THE CLOUD COVER WILL DEVELOP THIS AFTERNOON WHICH WILL LEAD TO THE DEVELOPMENT OF SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS WHICH WILL CONTINUE INTO THE EVENING HOURS. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY A CHANCE OF SHOWERS AND THUNDERSTORMS WILL CONTINUE FOR MAINLY THE AFTERNOON AND EVENING HOURS. MAIN THREAT FROM THESE STORMS WILL BE STRONG GUSTY WINDS...CLOUD-TO-GROUND LIGHTNING AND LOCALLY HEAVY RAIN. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. AZZ019-260700- NORTHERN GREENLEE COUNTY- 1103 AM MST THU JUN 25 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST ARIZONA. .DAY ONE...TODAY AND TONIGHT SCATTERED SHOWERS AND THUNDERSTORMS WILL BE DEVELOPING THIS AFTERNOON. MAIN THREAT FROM THESE STORMS WILL BE GUSTY WIND TO 40 MPH...CLOUD-TO-GROUND LIGHTNING AND BRIEF MODERATE RAIN. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY A CHANCE OF SHOWERS AND THUNDERSTORMS WILL CONTINUE FOR MAINLY THE AFTERNOON AND EVENING HOURS. MAIN THREAT FROM THESE STORMS WILL BE STRONG GUSTY WINDS...CLOUD-TO-GROUND LIGHTNING AND LOCALLY HEAVY RAIN. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. WEATHER.GOV/TUCSON
The office that day
Everything else NWS Tucson, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 25, 3:54 PM MST | Areal Flood Advisory | TWC | Cochise | 63 min |
Nearby
Flash Flood Warnings in Arizona, 2009Every flash flood warning in 2009
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.