Alert archive / Arizona / Flash Flood Warnings in 1998
Flash Flood Warning 16, NWS Tucson, AZ
NWS Tucson, AZ issued this flash flood warning at Jul 7, 1998, 7:51 PM MST for Pima County, Pinal County, Arizona. It was in force for 69 min. 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 7, 1998, 7:51 PM MST (02:51 UTC)
- Expired
- Jul 7, 1998, 9:00 PM MST
- In force
- 69 min
- Issued by
- NWS Tucson, AZ
- Area
- Whole counties
Counties Pima County, AZ, Pinal County, AZ
The nearest sounding before it
Tuscon, AZ (KTUS), launched 00:00Z, 2.9 hours before the alert went out and 73 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
- 672 J/kg
- Mixed-layer CIN
- -18 J/kg
- Mixed-layer LCL
- 1802 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- 32 m²/s²
- 0-3 km storm-relative helicity
- 47 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.2
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KTUS 080253 FFWTUS AZC019-021-080900- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE TUCSON AZ 751 PM MST TUE JUL 7 1998 THE NATIONAL WEATHER SERVICE IN TUCSON HAS ISSUED A * FLASH FLOOD WARNING FOR... NORTHEASTERN AND EASTERN PIMA COUNTY IN SOUTHERN ARIZONA SOUTHEASTERN PINAL COUNTY IN SOUTH CENTRAL ARIZONA THIS INCLUDES THE TUCSON METRO AREA. * UNTIL 900 PM MST * AT 750 PM MST... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THUNDERSTORMS WITH HEAVY RAIN IN SOUTHEAST PINAL...NORTHEAST AND EASTERN PIMA COUNTIES... MOVING SOUTHWEST 10 TO 15 MPH. SPOTTERS OVER EASTERN TUCSON AND VAIL HAVE REPORTED 1 TO 3 INCHES OF RAIN SINCE ABOUT 5 PM. ADDITIONAL RAINFALL WILL CONTINUE TO CAUSE FLOODING OF STREETS AND WASHES. T
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 7, 2:25 PM MST, 5 hours 26 minutes earlier.
Area forecast discussion, Jul 7, 2:25 PM MST, 5 hours 26 minutes before
SOUTHEAST ARIZONA FORECAST DISCUSSION NATIONAL WEATHER SERVICE TUCSON AZ 225 PM MST TUE JUL 7 1998 SYNOPSIS...MONSOONAL FLOW WILL CONTINUE ACROSS SOUTHEAST ARIZONA OVER THE NEXT FEW DAYS. HIGH PRESSURE WILL BUILD IN BY THE END OF THE WEEK RESULTING IN WARMER AFTERNOON TEMPERATURES. DISCUSSION...I JUST CANT FIND ANY REASON TO DRY US OUT. AT LEAST THE TREND FOR THE NOCTURNAL STORMS APPEARS OVER. BUT WE DONT NEED MUCH HEATING FOR TODAY TO GET STORMS GOING AND WITH NORTHERRLY FLOW ALOFT STORMS FORMING ON THE RIM SHOULD MOVE DOWN HERE. HI PW VALUES WILL LIKELY LEAD TO HEAVY RAINFALL WITH STORMS THIS AFTERNOON/EVENING AND EARLIER ISSUED FLASH FLOOD WATCH FOR SE PINAL...CENTRAL AND EASTERN PIMA...AND SANTA CRUZ COUNTIES UNTIL 6 PM MST/01Z. MAYBE A LITTLE MID LVL DRYING AS TROF DROPS DOWN ALONG WEST COAST IN NEXT 48 HRS. THIS MAY PUT US IN AN UP DAY DOWN DAY SCENARIO FOR LOW DESERTS BUT EXPECT MTNS TO BE ACTIVE EACH DAY. FARTHER DOWN THE RORAD PATTERN LUKS FAVORABLE FOR MONSOON CONDITIONS TO CONTINUE. TUS 6343. HOLBROOK/GLUECK .TWC...FLASH FLOOD WATCH UNTIL 01Z/6PM MST FOR ZONES 29...32>34.
The office that day
Everything else NWS Tucson, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 7, 5:53 PM MST | Flash Flood Warning | TWC | Pima, Pinal | 2 hr |
Nearby
Flash Flood Warnings in Arizona, 1998Every flash flood warning in 1998
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.