Alert archive / Arizona / Flash Flood Warnings in 1996

Flash Flood Warning 9, NWS Flagstaff, AZ

July 26, 1996Yavapai County, Arizona

NWS Flagstaff, AZ issued this flash flood warning at Jul 26, 1996, 4:00 PM MST for Yavapai County, Arizona. It was in force for 2 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jul 26, 1996, 4:00 PM MST (23:00 UTC)
Expired
Jul 26, 1996, 6:00 PM MST
In force
2 hr
Issued by
NWS Flagstaff, AZ
Area
Whole counties

County Yavapai County, AZ

The nearest sounding before it

Flgstf/Belemont, AZ (KFGZ), launched 12:00Z, 11.0 hours before the alert went out and 98 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.

Skew-T log-pSkew-T log-p diagram, Flgstf/Belemont, AZ at 12:00Z on 1996-07-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 182 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Flgstf/Belemont, AZ at 12:00Z on 1996-07-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 21 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
182 J/kg
Mixed-layer CIN
-183 J/kg
Mixed-layer LCL
1720 m above ground
0-6 km bulk shear
12 kt
0-1 km storm-relative helicity
21 m²/s²
0-3 km storm-relative helicity
96 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KFLG 262305 COR
FFWFLG
AZC025-270100-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING...CORRECTED
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
400 PM MST FRI JUL 26 1996

THE NATIONAL WEATHER SERVICE IN FLAGSTAFF HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL 600 PM MST
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN CENTRAL ARIZONA

   ...CENTRAL YAVAPAI COUNTY
 
AT 300 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS
INDICATING STRONG TO SEVERE THUNDERSTORMS IN THE PRESCOTT
AND CHINO VALLEY VICINITIES WERE PRODUCING VERY HEAVY RAINS. IN
ADDITION...FLASH FLOODING HAS BEEN OBSERVED AT WILLIAMSON VALLEY
AND LOOP ROADS IN THE CITY OF PRESCOTT.

HEAVY RAINS ARE EXPECTED TO CONTINUE IN THE AREA FOR THE NEHXT
COUPLE OF HOURS AND FLASH FLOODING IS LIKELY. DON'T DRIVE INTO
AREAS WHERE WATER COVERS THE ROAD! WATCH CHILDREN AND OBEY POLICE
BARRICADES. MOVE TO HIGHER GROUND.

PASSETTI
 
...CORRECTED LOCATION OF FLASH FLOODING...
&

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 26, 2:07 PM MST, 1 hour 53 minutes earlier.

Area forecast discussion, Jul 26, 2:07 PM MST, 1 hour 53 minutes before
NORTHERN ARIZONA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
200 PM MST FRI JUL 26 1996

BUSY DAY AGAIN.  MONSOON HAS SET IN WITH A VENGEANCE.  WILL GO WITH
GENERAL MONSOONAL FORECAST FORx NEXT FEW DAYS.  MODEL DOING DECENT
ENOUGH OF A JOB HANDLIG MOISTURE...ETC.  NO REAL BIG TEMPS SWINGS
TO SPEAK OF AS HEIGHTS REMAIN THE SAME.

FLG 3526 INW 3502

MCGRATH

In the hours before

Local storm report, Jul 26, 10:51 AM MST, 5 hours 9 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
1045 AM MST FRI JUL 26 1996

TIME(MST)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

300  PM    20 MILES WNW OF HEBER     AZ   5 TO 7 FUNNEL CLOUDS
07/25/96   COCONINO                       REPORTED NEAR CHEVELON
                                          RANGER STATION BY FOREST
                                          SERVICE OFFICIALS. NO
                                          TOUCHDOWNS OR DAMAGE
                                          REPORTED.

315  PM    20 MILES WSW OF HEBER     AZ   .10 INCH DIAMETER HAIL
07/25/96   COCONINO                N       COVERING GROUND TO A DEPTH
                                          OF 1.5 INCHES AT WOODS
                                          CANYON LAKE.

SJK/HP
Special weather statement, Jul 26, 2:25 PM MST, 1 hour 35 minutes before
AZZ004>006-262330-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
226 PM MST FRI JUL 26 1996

...STRONG THUNDERSTORMS SCATTERED ABOUT NORTHERN AND WESTERN
PORTIONS OF COCONINO COUNTY...

AT 225 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS
INDICATING NUMEROUS STRONG THUNDERTORMS IN NORTHERN AND WESTERN
PORTIONS OF COCONINO COUNTY.  RADAR IS DETECTING SCATTERED
THUNDERSTORMS OVER THE KAIBAB PLATEAU...GRAND CANYON COUNTRY AND
COCONINO PLATEAU WHICH ALL HAVE THE POTENTIAL TO PRODUCE SMALL
HAIL...DEADLY LIGHTNING...STRONG WINDS WHICH MAY PRODUCE
REDUCED VISIBILITY IN BLOWING DUST...AND VERY HEAVY RAIN.

PEOPLE IN NORTHERN AND WESTERN PORTIONS OF COCONINO COUNTY SHOULD
MONITOR THE WEATHER SITUATION THIS AFTERNOON AND BE PREPARED TO
TAKE SHELTER IN THE EVENT OF POSSIBLE WARNINGS AND ADVISORIES.
STAY TUNED TO NOAA WEATHER RADIO OR LOCAL MEDIA FOR FUTURE WEATHER
UPDATES.

PASSETTI
Special weather statement, Jul 26, 2:50 PM MST, 1 hour 10 minutes before
AZZ007-262350-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
251 PM MST FRI JUL 26 1996

...STRONG THUNDERSTORM NEAR MINGUS MOUNTAIN...OTHER STORMS MOVING
INTO EASTERN SECTIONS OF YAVAPAI COUNTY...

AT 250 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS
INDICATING A STRONG THUNDERSTORM NEAR MINGUS MOUNTAIN IN YAVAPAI
COUNTY.  IN ADDITION...OTHER STRONG STORMS WERE MOVING INTO
EASTERN SECTIONS OF THE COUNTY AND APPROACHING THE MCGUIREVILLE
AND CAMPE VERDE AREAS.

THUNDERSTORMS THIS AFTERNOON MAY PRODUCE STRONG WINDS...HAIL...
DEADLY LIGHTNING AND VERY HEAVY RAIN.  REDUCED VISIBILITY IN
BLOWING DUST IS ALSO POSSIBLE.

PEOPLE IN YAVPAI COUTY...ESPECIALLY NORTHERN AND EASTERN PORTIONS
SHOULD MONITOR THE WEATHER THIS AFTERNOON.  STAY TUNED TO NOAA
WEATHER RADIO FOR THE LATEST WEATHER INFORMATION OR POSSIBLE
WARNINGS.

PASSETTI

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 26, 12:23 PM MSTSevere Thunderstorm WarningFGZCoconino62 min
Jul 26, 1:05 PM MSTSevere Thunderstorm WarningFGZCoconino, Gila, Navajo60 min
Jul 26, 1:21 PM MSTSevere Thunderstorm WarningFGZCoconino, Yavapai59 min
Jul 26, 2:10 PM MSTSevere Thunderstorm WarningFGZCoconino, Gila30 min
Jul 26, 3:06 PM MSTSevere Thunderstorm WarningFGZYavapai34 min
Jul 26, 3:34 PM MSTSevere Thunderstorm WarningFGZYavapai56 min
Jul 26, 3:38 PM MSTSevere Thunderstorm WarningFGZYavapai47 min
Jul 26, 4:18 PM MSTFlash Flood WarningFGZCoconino, Yavapai2 hr
Jul 26, 4:26 PM MSTSevere Thunderstorm WarningFGZYavapai59 min
Jul 26, 4:47 PM MSTSevere Thunderstorm WarningFGZYavapai63 min

Nearby

Flash Flood Warnings in Arizona, 1996Every flash flood warning in 1996

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.