Alert archive / Arizona / Flash Flood Warnings in 2014
Flash Flood Warning 45, NWS Tucson, AZ
NWS Tucson, AZ issued this flash flood warning at Aug 17, 2014, 7:33 PM MST for Pima County, Arizona. It was in force for 87 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
- Aug 17, 2014, 7:33 PM MST (02:33 UTC)
- Expired
- Aug 17, 2014, 9:00 PM MST
- In force
- 87 min
- Issued by
- NWS Tucson, AZ
- Area
- Storm-based polygon
- Flood severity
- None
County Pima County, AZ
The radar
The Tucson radar (KEMX), 21 km from the middle of the area, began a volume at 02:34 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 nearest sounding before it
Tuscon, AZ (KDMA), launched 00:00Z, 2.6 hours before the alert went out and 24 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
- 657 J/kg
- Mixed-layer CIN
- -26 J/kg
- Mixed-layer LCL
- 2812 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- -53 m²/s²
- 0-3 km storm-relative helicity
- 26 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
593 WGUS55 KTWC 180233 FFWTWC AZC019-180400- /O.NEW.KTWC.FF.W.0045.140818T0233Z-140818T0400Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE TUCSON AZ 733 PM MST SUN AUG 17 2014 THE NATIONAL WEATHER SERVICE IN TUCSON HAS ISSUED A * FLASH FLOOD WARNING FOR... EAST CENTRAL PIMA COUNTY IN SOUTHEAST ARIZONA... * UNTIL 900 PM MST * AT 723 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED FLASH FLOODING FROM A CLUTSER OF THUNDERSTORMS FROM AROUND VAIL TO PANTANO. THE STORMS WERE MOVING SLOWLY TO THE WEST AT LESS THAN 10 MPH. RAIN GUAGES IN THE AREA HAVE REPORTED OVER 1 INCH HAD FALLEN IN A SHORT PERIOD OF TIME. * LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO VAIL... SAGUARO NATIONAL PARK EAST AND RITA RANCH PRECAUTIONARY/PREPAREDNESS ACTIONS... EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS AND OTHER LOW LYING AREAS ARE SUBJECT TO FLOODING. && LAT...LON 3221 11078 3208 11047 3195 11047 3194 11085 $$
2 follow-up statements
926 WGUS75 KTWC 180308 FFSTWC FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE TUCSON AZ 808 PM MST SUN AUG 17 2014 AZC019-180400- /O.CON.KTWC.FF.W.0045.000000T0000Z-140818T0400Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ PIMA AZ- 808 PM MST SUN AUG 17 2014 ...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 900 PM MST FOR EAST CENTRAL PIMA COUNTY... AT 756 PM MST...RADAR CONTINUED TO SHOW SCATTERED SHOWERS AND THUNDERSTORMS WITH HEAVY RAINFALL AROUND VAIL TO THE PIMA COUNTY FAIR GROUNDS. A RAIN GAUGE AT THE PIMA COUNTY FAIR GROUNDS REPORTED 1.34 INCHES OF RAIN IN WHICH .59 OF IT FELL IN 15 MINUTES. THE STORMS WERE MOVING WEST AT LESS THAN 10 MPH. AN URBAN AND SMALL STREAM FLOOD ADVISORY ALSO REMAINS IN EFFECT UNTIL 915 PM MST FOR ALL OF EASTERN PIMA COUNTY. ADDITIONAL STORMS WILL LIKELY PRODUCE MINOR FLOODING OF ROADWAYS AND ELEVATED FLOWS IN AREA WASHES. PRECAUTIONARY/PREPAREDNESS ACTIONS... BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING. && LAT...LON 3221 11078 3208 11047 3195 11047 3194 11085 $$
207 WGUS75 KTWC 180354 FFSTWC FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE TUCSON AZ 854 PM MST SUN AUG 17 2014 AZC019-180401- /O.EXP.KTWC.FF.W.0045.000000T0000Z-140818T0400Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ PIMA AZ- 854 PM MST SUN AUG 17 2014 ...THE FLASH FLOOD WARNING WILL EXPIRE AT 900 PM MST FOR EAST CENTRAL PIMA COUNTY... THE HEAVY RAINFALL THAT PROMPTED THE WARNING HAD ENDED ACROSS THE AREA. SEVERAL RAIN GAUGES REPORTED OVER 1.5 INCHES IN A SHORT TIME FRAME SO RUNOFF INTO SMALL STREAMS AND WASHES ALONG WITH PONDING OF WATER IN LOW-LYING AREAS CAN STILL BE EXPECTED. HOWEVER...THE THREAT FOR FLASH FLOODING HAD ENDED SO THE WARNING WILL EXPIRE ON TIME AT 900 PM MST. LAT...LON 3221 11078 3208 11047 3195 11047 3194 11085 $$
The office that day
Everything else NWS Tucson, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 17, 5:36 PM MST | Severe Thunderstorm Warning | TWC | Pinal | 24 min |
| Aug 17, 6:01 PM MST | Dust Storm Warning | TWC | Pima, Pinal | 119 min |
| Aug 17, 6:45 PM MST | Areal Flood Advisory | TWC | Cochise, Pima | 90 min |
| Aug 17, 7:25 PM MST | Areal Flood Advisory | TWC | Cochise, Pima, Pinal | 110 min |
| Aug 17, 8:02 PM MST | Flash Flood Warning | TWC | Pima, Santa Cruz | 88 min |
| Aug 17, 9:10 PM MST | Areal Flood Advisory | TWC | Pima, Santa Cruz | 110 min |
Nearby
Flash Flood Warnings in Arizona, 2014Every flash flood warning in 2014
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.