Alert archive / Arizona / Special Weather Statements in 2020

Special Weather Statement, NWS Tucson, AZ

July 2, 2020

NWS Tucson, AZ issued this special weather statement at Jul 2, 2020, 4:26 PM MST. It was in force for 49 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: Jul 2, 2020, 4:26 PM MST (23:26 UTC)
Expired: Jul 2, 2020, 5:15 PM MST
In force: 49 min
Issued by: NWS Tucson, AZ

The radar

The Tucson radar (KEMX), 45 km from the middle of the area, began a volume at 23:25 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 text

As transmitted.

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Jul 2, 3:01 PM MST, 1 hour 25 minutes earlier.

Area forecast discussion, Jul 2, 3:01 PM MST, 1 hour 25 minutes before

Area Forecast Discussion
National Weather Service Tucson AZ
301 PM MST Thu Jul 2 2020

.SYNOPSIS...Active Thursday will give way to a low grade monsoon
forecast of isolated showers and thunderstorms Friday into early
next week. High pressure will push temperatures back above average
over the weekend into next week.

&&

.DISCUSSION...Thunderstorm activity got off to a slow start today
thanks to the extensive cloud cover and widely scattered shower
activity this morning. The weak MCV that was over SW Cochise
county this morning was moving through central Graham county this
afternoon per visible satellite/doppler radar. Kinda impressive
its been able to maintain itself. Low topped storms earlier this
afternoon produced up to 0.50" in 15 minutes.

Scattered showers and thunderstorms to continue into the early
evening hours. Main threat will brief heavy rain, with PW values
up to 1.50", and strong gusty winds. Some areas have seen some
training of storms this afternoon, so localized flooding issues
may crop up. With respects to the Bighorn Burn Scar, the Flash
Flood Watch continues through 8 pm.

Less activity expected Friday with low grade monsoon forecast
through the 4th of July weekend into next week.

After a cooler than expected day, warmer Friday but still below
normal. Hotter temperatures over the weekend into next week with
Monday/Tuesday likely the hottest days in the current 7 day fcst.

&&

.AVIATION...Valid through 04/00Z.
SCT-BKN clouds 10k-15k ft MSL with Isold to Sct -SHRA/-TSRA into
this evening. SFC winds mainly less than 12 kts through tonight, but
gusty and erratic near -SHRA/-TSRA. Another round of Isold -SHRA/-
TSRA Friday afternoon, mainly E and S of KTUS and near terrain. SFC
wind Friday afternoon outside of -SHRA/-TSRA WLY/NWLY at less than
12 kts. Aviation discussion not updated for TAF amendments.

&&

.FIRE WEATHER...Scattered showers and thunderstorms are expected
into this evening for much of southeast Arizona with numerous
showers and thunderstorms possible south of Tucson. Gusty and
erratic outflow winds are possible in/near these showers and
thunderstorms.

A low grade monsoon pattern will then persist Friday into early next
week with isolated mainly afternoon and evening showers and
thunderstorms, mostly to the south and east of Tucson and especially
near terrain. Minimum humidity levels will be in the 15-30 percent
range through the forecast period with good overnight recoveries. 20-
ft winds outside of thunderstorms will generally be terrain driven
at less than 15 mph.

&&

.TWC WATCHES/WARNINGS/ADVISORIES...
 Flash Flood Watch until 8 PM MST this evening for mainly areas
 in and near the Bighorn Burn Scar in AZZ504-514.

&&

Visit us on Facebook...Twitter...YouTube...and at weather.gov/Tucson

In the hours before

Special weather statement, Jul 2, 2:17 PM MST, 2 hours 9 minutes before

Special Weather Statement
National Weather Service Tucson AZ
217 PM MST Thu Jul 2 2020

AZZ503-507-513-022145-
Upper San Pedro River Valley including Sierra
Vista/Benson-Dragoon/Mule/Huachuca and Santa Rita Mountains including
Bisbee/Canelo Hills/Madera Canyon-Upper Santa Cruz River and Altar
Valleys including Nogales-
217 PM MST Thu Jul 2 2020

...SIGNIFICANT WEATHER ADVISORY FOR EAST CENTRAL PIMA...WEST CENTRAL
COCHISE AND NORTHEASTERN SANTA CRUZ COUNTIES UNTIL 245 PM MST...

At 216 PM MST, Doppler radar was tracking a strong thunderstorm near
Patagonia, or 22 miles northeast of Nogales, moving northeast at 25
mph.

Dime size hail and winds in excess of 40 mph will be possible with
this storm.

Locations impacted include...
Patagonia, Sonoita, Elgin and Canelo.

LAT...LON 3143 11060 3152 11080 3186 11064 3174 11036
TIME...MOT...LOC 2116Z 206DEG 21KT 3156 11065

RH

Special weather statement, Jul 2, 2:31 PM MST, 1 hour 55 minutes before

Special Weather Statement
National Weather Service Tucson AZ
231 PM MST Thu Jul 2 2020

AZZ507-508-513-022200-
Upper San Pedro River Valley including Sierra
Vista/Benson-Dragoon/Mule/Huachuca and Santa Rita Mountains including
Bisbee/Canelo Hills/Madera Canyon-Eastern Cochise County Below 5000
Feet including Douglas/Willcox-
231 PM MST Thu Jul 2 2020

...SIGNIFICANT WEATHER ADVISORY FOR SOUTH CENTRAL COCHISE COUNTY
UNTIL 300 PM MST...

At 230 PM MST, Doppler radar was tracking a strong thunderstorm 10
miles north of Bisbee, moving northeast at 20 mph.

Winds in excess of 40 mph will be possible with this storm.

Locations impacted include...
Bisbee and Elfrida.

LAT...LON 3142 10988 3151 11009 3182 10996 3170 10967
TIME...MOT...LOC 2130Z 206DEG 16KT 3156 10994

RH

Special weather statement, Jul 2, 3:42 PM MST, 44 minutes before

Special Weather Statement
National Weather Service Tucson AZ
342 PM MST Thu Jul 2 2020

AZZ504-507-513-514-022330-
Santa Catalina and Rincon Mountains including Mount
Lemmon/Summerhaven-Upper San Pedro River Valley including Sierra
Vista/Benson-Dragoon/Mule/Huachuca and Santa Rita Mountains including
Bisbee/Canelo Hills/Madera Canyon-Tucson Metro Area including
Tucson/Green Valley/Marana/Vail-
342 PM MST Thu Jul 2 2020

...SIGNIFICANT WEATHER ADVISORY FOR EAST CENTRAL PIMA COUNTY UNTIL
430 PM MST...

At 340 PM MST, Doppler radar was tracking a strong thunderstorm
south of Vail, or 20 miles southeast of Davis-Monthan Air Force
Base, moving north at 15 mph.

Wind gusts of 50 mph and blowing dust will be possible ahead of this
storm.

Locations impacted include...
Vail, East Sahuarita, Corona De Tucson, Rita Ranch, and I-10
immediately southeast of Tucson.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

&&

LAT...LON 3191 11051 3186 11072 3197 11090 3212 11079
      3216 11053
TIME...MOT...LOC 2240Z 165DEG 13KT 3197 11065

Meyer

Special weather statement, Jul 2, 4:26 PM MST, 0 minutes before

Special Weather Statement
National Weather Service Tucson AZ
426 PM MST Thu Jul 2 2020

AZZ503-504-030015-
Upper Santa Cruz River and Altar Valleys including Nogales-Tucson
Metro Area including Tucson/Green Valley/Marana/Vail-
426 PM MST Thu Jul 2 2020

...SIGNIFICANT WEATHER ADVISORY FOR EAST CENTRAL PIMA COUNTY UNTIL
515 PM MST...

At 424 PM MST, Doppler radar was tracking a strong thunderstorm 8
miles west of Sahuarita, moving north at 5 mph.

Half inch hail and wind gusts up to 50 mph will be possible with this
storm.

Locations impacted include...
Sahuarita, Drexel Heights and San Xavier Mission.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

&&

LAT...LON 3194 11099 3188 11119 3205 11128 3215 11101
TIME...MOT...LOC 2324Z 166DEG 6KT 3196 11111

Meyer

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 2, 2:17 PM MST	Special Weather Statement	TWC	Santa Cruz	28 min
Jul 2, 2:31 PM MST	Special Weather Statement	TWC	Cochise	29 min
Jul 2, 3:42 PM MST	Special Weather Statement	TWC	Santa Cruz	48 min

Nearby

Special Weather Statements in Arizona, 2020 Every special weather statement in 2020

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.