Alert archive / Arizona / Flash Flood Warnings in 1996
Flash Flood Warning 24, NWS Tucson, AZ
NWS Tucson, AZ issued this flash flood warning at Jul 14, 1996, 3:56 PM MST for Graham 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 14, 1996, 3:56 PM MST (22:56 UTC)
- Expired
- Jul 14, 1996, 6:00 PM MST
- In force
- 2 hr
- Issued by
- NWS Tucson, AZ
- Area
- Whole counties
County Graham County, AZ
The nearest sounding before it
Tuscon, AZ (KTUS), launched 12:00Z, 10.9 hours before the alert went out and 127 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
- 226 J/kg
- Mixed-layer CIN
- -144 J/kg
- Mixed-layer LCL
- 1546 m above ground
- 0-6 km bulk shear
- 7 kt
- 0-1 km storm-relative helicity
- -6 m²/s²
- 0-3 km storm-relative helicity
- 81 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KTUS 142255 FFWTUS AZC009-150100- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE TUCSON ARIZONA 356 PM MST SUN JUL 14 1996 THE NATIONAL WEATHER SERVICE IN TUCSON ARIZONA HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 600 PM MST FOR PEOPLE IN THE FOLLOWING LOCATION... IN EAST ARIZONA ...CENTRAL GRAHAM COUNTY AT 350 PM TUCSON DOPPLER RADAR INDICATED VERY HEAVY RAINFALL WAS OCCURING JUST EAST OF SOLOMON MOVING TOWARDS SOLOMON AND SAFFORD. RADAR INDICATES UP TO 2 INCHES OF RAIN HAS FALLEN FROM THIS STORM IN THE PAST HOUR. A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IS IMMINENT. MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TOb CROSS BRIDGES...DIPS...OR LOW SPOTS IF WATER COVERS THE ROADWAY. NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL ONE...ON FOOT. TO ESCAPE RISING WATER MOVE UP TO HIGHER GROUND. COLLINS
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 Jul 14, 2:21 PM MST, 1 hour 35 minutes earlier.
Area forecast discussion, Jul 14, 2:21 PM MST, 1 hour 35 minutes before
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
The office that day
Everything else NWS Tucson, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 13, 6:22 PM MST | Flash Flood Warning | TWC | Cochise | 2 hr |
| Jul 13, 7:15 PM MST | Flash Flood Warning | TWC | Pima, Pinal | 60 min |
| Jul 13, 8:19 PM MST | Flash Flood Warning | TWC | Pima, Pinal | 116 min |
| Jul 14, 2:37 PM MST | Flash Flood Warning | TWC | Greenlee | 2 hr |
| Jul 14, 2:50 PM MST | Severe Thunderstorm Warning | TWC | Graham | 40 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.