Alert archive / Arizona / Flash Flood Warnings in 2015

Flash Flood Warning 13, NWS Flagstaff, AZ

July 15, 2015Apache County, Arizona

NWS Flagstaff, AZ issued this flash flood warning at Jul 15, 2015, 4:22 PM MST for Apache County, Arizona. It was in force for 113 min. 1 report 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: Jul 15, 2015, 4:22 PM MST (23:22 UTC)
Expired: Jul 15, 2015, 6:15 PM MST
In force: 113 min
Issued by: NWS Flagstaff, AZ
Area: Storm-based polygon
Flood severity: None

County Apache County, AZ

The radar

The Flagstaff radar (KFSX), 165 km from the middle of the area, began a volume at 23:24 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
Jul 15, 5:30 PM MST	FLASH FLOOD	5 Ssw St. Johns, AZ	HIGHWAY 180 CLOSED DUE TO FLOODING AT MILE MARKER 375. ESTIMATED 2 FEET OF WATER OVER ROAD. UNKNOWN START TIME.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Flgstf/Belemont, AZ (KFGZ), launched 12:00Z, 11.4 hours before the alert went out and 236 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 185 J/kg
Mixed-layer CIN: -117 J/kg
Mixed-layer LCL: 1620 m above ground
0-6 km bulk shear: 24 kt
0-1 km storm-relative helicity: 88 m²/s²
0-3 km storm-relative helicity: 111 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.

672 
WGUS55 KFGZ 152322
FFWFGZ
AZC001-160115-
/O.NEW.KFGZ.FF.W.0013.150715T2322Z-150716T0115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
422 PM MST WED JUL 15 2015

THE NATIONAL WEATHER SERVICE IN FLAGSTAFF HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHEASTERN APACHE COUNTY IN NORTHEASTERN ARIZONA...

* UNTIL 615 PM MST

* AT 419 PM MST...LOCAL LAW ENFORCEMENT REPORTED FLOODING NEAR THE 
  INTERSECTION OF HIGHWAYS 180 AND 191 JUST EAST OF ST. JOHNS. RADAR 
  ESTIMATES SHOW UP TO 1 TO 2 INCHES OF RAIN HAVE ALREADY FALLEN.

ADDITIONAL RAINFALL AMOUNTS UP TO 1 INCH ARE POSSIBLE IN THE WARNED 
AREA...WHICH WILL CAUSE ADDITIONAL FLOODING.

THIS INCLUDES THE FOLLOWING HIGHWAYS...
 HIGHWAY 180 191 BETWEEN MILE MARKERS 371 AND 384.
 HIGHWAY 60 BETWEEN MILE MARKERS 366 AND 376.
 HIGHWAY 191 161 BETWEEN MILE MARKERS 316 AND 322.
 HIGHWAY 180 BETWEEN MILE MARKERS 353 AND 368.
 STATE ROUTE 61 BETWEEN MILE MARKERS 376 AND 381.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TURN AROUND...DONT DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO AREAS
WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY DEEPER
THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL ENOUGH
TO SWEEP VEHICLES OFF THE ROAD.

PLEASE REPORT FLOODING TO YOUR LOCAL LAW ENFORCEMENT AGENCY WHEN YOU
CAN DO SO SAFELY.

&&
 
LAT...LON 3456 10922 3416 10947 3421 10964 3464 10949

$$

MCS

2 follow-up statements

098 
WGUS75 KFGZ 160032
FFSFGZ

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
532 PM MST WED JUL 15 2015

AZC001-160115-
/O.CON.KFGZ.FF.W.0013.000000T0000Z-150716T0115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
APACHE-
532 PM MST WED JUL 15 2015

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 615 PM MST FOR
SOUTHEASTERN APACHE COUNTY...

AT 530 PM MST...LOCAL LAW ENFORCEMENT REPORTED HIGHWAY 180 CLOSED 
DUE TO FLOODING ABOUT 5 MILES SOUTH OF ST. JOHNS AT MILE MARKER 375. 
LIGHT TO MODERATE RAIN CONTINUES OVER THE WARNED AREA AT THIS TIME 
WITH UP TO AN ADDITIONAL QUARTER INCH POSSIBLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TURN AROUND...DONT DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

PLEASE REPORT FLOODING TO YOUR LOCAL LAW ENFORCEMENT AGENCY WHEN YOU
CAN DO SO SAFELY.

&&

LAT...LON 3456 10922 3416 10947 3421 10964 3464 10949

$$

MCS

609 
WGUS75 KFGZ 160109
FFSFGZ

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
609 PM MST WED JUL 15 2015

AZC001-160117-
/O.EXP.KFGZ.FF.W.0013.000000T0000Z-150716T0115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
APACHE-
609 PM MST WED JUL 15 2015

...THE FLASH FLOOD WARNING FOR SOUTHEASTERN APACHE COUNTY WILL EXPIRE
AT 615 PM MST...

HEAVY RAIN HAS ENDED AT THIS TIME AND FLOOD WATERS ARE EXPECTED TO 
GRADUALLY RECEDE. PLEASE CONTINUE TO HEED ANY ROAD CLOSURES. DO NOT 
ATTEMPT TO DRIVE ACROSS A FLOODED ROAD.

ADDITIONAL RAINFALL IS POSIBLE THIS EVENING SO STAY TUNED TO YOUR 
FAVORITE SOURCE FOR LOCAL WEATHER INFORMATION.

LAT...LON 3456 10922 3416 10947 3421 10964 3464 10949

$$

MCS

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 14, 7:10 PM MST	Flash Flood Warning	FGZ	Coconino	2 hr
Jul 15, 11:09 AM MST	Special Weather Statement	FGZ		36 min
Jul 15, 11:45 AM MST	Special Weather Statement	FGZ	Navajo	30 min
Jul 15, 12:16 PM MST	Areal Flood Advisory	FGZ	Coconino, Navajo	119 min
Jul 15, 12:20 PM MST	Special Weather Statement	FGZ		40 min
Jul 15, 12:26 PM MST	Special Weather Statement	FGZ	Navajo	34 min
Jul 15, 1:29 PM MST	Flash Flood Warning	FGZ	Navajo	3 hr
Jul 15, 2:04 PM MST	Areal Flood Advisory	FGZ	Navajo	116 min
Jul 15, 3:10 PM MST	Special Weather Statement	FGZ		35 min
Jul 15, 4:04 PM MST	Areal Flood Advisory	FGZ	Apache	116 min
Jul 15, 4:31 PM MST	Areal Flood Advisory	FGZ	Navajo	59 min

Nearby

Flash Flood Warnings in Arizona, 2015 Every flash flood warning in 2015

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.