Alert archive / Arizona / Flash Flood Warnings in 2013
Flash Flood Warning 30, NWS Flagstaff, AZ
NWS Flagstaff, AZ issued this flash flood warning at Aug 24, 2013, 5:40 AM MST for Yavapai County, Arizona. It was in force for 110 min. 2 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Aug 24, 2013, 5:40 AM MST (12:40 UTC)
- Expired
- Aug 24, 2013, 7:30 AM MST
- In force
- 110 min
- Issued by
- NWS Flagstaff, AZ
- Area
- Storm-based polygon
- Flood severity
- None
County Yavapai County, AZ
The radar
The Phoenix radar (KIWA), 137 km from the middle of the area, began a volume at 12:41 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 24, 7:30 AM MST | FLOOD | 2n Wickenburg, AZ | DELAYED REPORT...PORTIONS OF RINCON ROAD CLOSED ALONG MARTINEZ WASH DUE TO HIGH WATER. |
| Aug 24, 7:30 AM MST | FLASH FLOOD | 2 N Wickenburg, AZ | DELAYED REPORT...RINCON RD CLOSED NEAR MARTINEZ WASH DUE TO HIGH WATER |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
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
Phoenix, AZ (KPSR), launched 12:00Z, 0.7 hours before the alert went out and 105 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
- 56 J/kg
- Mixed-layer CIN
- -158 J/kg
- Mixed-layer LCL
- 2056 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- -36 m²/s²
- 0-3 km storm-relative helicity
- -25 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
557 WGUS55 KFGZ 241240 FFWFGZ AZC025-241430- /O.NEW.KFGZ.FF.W.0030.130824T1240Z-130824T1430Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE FLAGSTAFF AZ 540 AM MST SAT AUG 24 2013 THE NATIONAL WEATHER SERVICE IN FLAGSTAFF HAS ISSUED A * FLASH FLOOD WARNING FOR... SOUTH CENTRAL YAVAPAI COUNTY IN WEST CENTRAL ARIZONA... * UNTIL 730 AM MST * AT 530 AM MST...NATIONAL WEATHER SERVICE FLAGSTAFF DOPPLER RADAR INDICATED VERY STRONG THUNDERSTORMS THAT WERE CONTINUING TO AFFECT THE NORTHERN SECTIONS OF WICKENBURG THAT ARE LOCATED IN YAVAPAI COUNTY. RADAR INDICATED AS MUCH AS THREE INCHES OF RAIN IN THE AREA NEAR THE JUNCTION OF ROUTE 89 AND 93...NORTH OF WICKENBURG. * LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO THE JUNCTION OF ROUTE 93 AND 89 NORTH OF WICKENBURG. PRECAUTIONARY/PREPAREDNESS ACTIONS... 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 3411 11289 3413 11270 3400 11269 3400 11289 $$
2 follow-up statements
093 WGUS75 KFGZ 241355 FFSFGZ FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE FLAGSTAFF AZ 655 AM MST SAT AUG 24 2013 AZC025-241430- /O.CON.KFGZ.FF.W.0030.000000T0000Z-130824T1430Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ YAVAPAI AZ- 655 AM MST SAT AUG 24 2013 ...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 730 AM MST FOR SOUTH CENTRAL YAVAPAI COUNTY... AT 650 AM MST...NATIONAL WEATHER SERVICE FLAGSTAFF DOPPLER RADAR INDICATED MAINLY LIGHT RAIN FALLING IN THE WARNING AREA. STREAM GAGE REPORTS FROM MARTINEZ WASH AND ANTELOPE CREEK INDICATED HIGHER THAN NORMAL FLOW EARLIER THIS MORNING...BUT LEVELS ARE NOW RECEDING. LOW LYING AREAS ALONG THESE DRAINAGES MAY STILL BE EXPERIENCING FLOODING THIS MORNING AND THE WARNING WILL BE ALLOWED TO CONTINUE. PRECAUTIONARY/PREPAREDNESS ACTIONS... DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. MOVE TO HIGHER GROUND. && LAT...LON 3411 11289 3413 11270 3400 11269 3400 11289 $$
717 WGUS75 KFGZ 241428 FFSFGZ FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE FLAGSTAFF AZ 728 AM MST SAT AUG 24 2013 AZC025-241432- /O.EXP.KFGZ.FF.W.0030.000000T0000Z-130824T1430Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ YAVAPAI AZ- 728 AM MST SAT AUG 24 2013 ...THE FLASH FLOOD WARNING WILL EXPIRE AT 730 AM MST FOR SOUTH CENTRAL YAVAPAI COUNTY... THE FLASH FLOOD WARNING FOR AREAS OF SOUTH CENTRAL YAVAPAI COUNTY BETWEEN CONGRESS AND WICKENBURG WILL BE ALLOWED TO EXPIRE AT 730 AM MST. OBSERVATIONS AND RADAR ESTIMATES FROM THE AREA INDICATED RAINFALL AMOUNTS IN EXCESS OF 2 INCHES FELL FROM AROUND 430 AM TO 600 AM. SIGNIFICANT SPIKES ON ANTELOPE CREEK AND MARTINEZ CREEK WERE INDICATED BY STREAM GAGES...HOWEVER THESE GAGES NOW SHOW THAT THE WATER HAS RECEDED. LAT...LON 3411 11289 3413 11270 3400 11269 3400 11289 $$ DJO
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 Aug 24, 4:05 AM MST, 1 hour 35 minutes earlier.
Area forecast discussion, Aug 24, 4:05 AM MST, 1 hour 35 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE FLAGSTAFF AZ 405 AM MST SAT AUG 24 2013 .SYNOPSIS...TROPICAL MOISTURE WILL INCREASE ACROSS ARIZONA THROUGH EARLY NEXT WEEK. THIS WILL RESULT IN WIDESPREAD AND FREQUENT SHOWERS AND THUNDERSTORMS THIS WEEKEND...AND INTO NEXT WEEK. THE HEAVIEST RAINFALL IS ANTICIPATED ION SUNDAY...AND A FLASH FLOOD WATCH IS IN EFFECT FOR WESTERN ARIZONA. && .DISCUSSION...MOISTURE IS INCREASING RAPIDLY FROM SOUTH TO NORTH THIS MORNING. SHOWERS AND THUNDERSTORMS HAVE BEEN INCREASING THROUGH THE NIGHT AS OUTFLOWS FROM THE SOUTH MOVE INTO OUR AREA. THERE IS ALSO SOME ASSISTANCE BY A WEAK S/WV MOVING THROUGH SOUTHERN NEVADA. IN THE LARGER PICTURE...THE COMBINATION OF A DECAYING TROPICAL SYSTEM OVER THE SOUTHERN GULF OF CALIFORNIA AND LOW PRESSURE OFF THE PACIFIC NORTHWEST IS A RECIPE FOR GULF SURGES. THIS MECHANISM WILL FEED OUR CONVECTION FOR THE NEXT SEVERAL DAYS. ADDING TO THIS WILL BE THE REMNANTS...MAINLY UPPER LEVEL...OF IVO. THIS FEATURE WILL AFFECT THE AREA SUNDAY AND MONDAY AND WILL ADD DYNAMICS TO THE MIX OF DEEP MOISTURE AND MODEST INSTABILITY. FLASH FLOOD WATCHES ARE IN EFFECT SUNDAY FOR THE REASONS LISTED ABOVE...AND THIS LOOKS REASONABLE. THERE IS A REAL POSSIBILITY THAT ALL THIS MOISTURE WILL RESULT IN WIDESPREAD CLOUD COVER AND DRIZZLE WITH A RAIN-COOLED BOUNDARY LAYER THAT IS UNSTABLE TO CONVECT. HOWEVER...WITH THE ADDITION OF DYNAMICS...THE FACTORS AGAINST CONVECTION COULD BE OVERCOME. DEEP MOISTURE WILL THEN STAY AROUND WELL INTO NEXT WEEK...WITH A SLIGHT DOWNWARD TREND EACH DAY. && .AVIATION...FOR THE 12Z PACKAGE...WDLY SCT SHRA/TSRA TO CONTINUE THROUGH THE MORNING AND SPREAD NORTHWARD THROUGH MOST OF NORTHERN AZ...WITH INCREASINGLY STRONG STORMS AFTER 18Z. UNTIL 18Z...ISOLD MVFR CONDITIONS POSSIBLE IN THE STRONGER STORMS. AFTER 18Z...ISOLD IFR/MVFR CONDITIONS AND WIND GUSTS TO 35 KTS WITH THE STRONGER STORMS. WIDESPREAD SHRA/ISOLD TSRA CONTINUING THROUGH 12Z SUNDAY. AVIATION DISCUSSION NOT UPDATED FOR AMENDMENTS. && .FGZ WATCHES/WARNINGS/ADVISORIES...FLASH FLOOD WATCH IN EFFECT FROM SUNDAY MORNING THROUGH SUNDAY EVENING FOR AZZ004-006>008-015-037-038. && PUBLIC.........PETERSON AVIATION.......DJO FOR NORTHERN ARIZONA WEATHER INFORMATION VISIT WEATHER.GOV/FLAGSTAFF
The office that day
Everything else NWS Flagstaff, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 24, 5:08 AM MST | Areal Flood Advisory | FGZ | Yavapai | 3 hr |
Nearby
Flash Flood Warnings in Arizona, 2013Every flash flood warning in 2013
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.